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bh=c0Bas2IWQGNLdA52/zEwpjDkBS+KtOkCdVjcFR6m7yE=; b=CzHtGA9RLBt5LoExbZ6K6Gc6r+y7qUXdgQrCy+DgaJrLF0BhSd8WqK+aJnIROsGmA3E/me ChtuRDaj37Mi3Mcv7wxt2EhRq4h2O0/jB9lIRXP/Yx/lX6L/+5mPoUtv+R0lGRZ+FXucId p/eOHi+DXh8tb3/PiBP9x5qBeVzGXOQ= X-MC-Unique: q8rr48RXPWieaI0HDEyuaw-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 01/20] qga: drop blocking of guest-get-memory-block-size command Date: Tue, 4 Jun 2024 14:49:14 +0100 Message-ID: <20240604134933.220112-2-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509002771100005 This command has never existed in tree, since it was renamed to guest-get-memory-block-info before being merged. Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Manos Pitsidianakis --- qga/commands-posix.c | 2 +- qga/commands-win32.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 7f05996495..76af98ba32 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -3099,7 +3099,7 @@ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) "guest-suspend-disk", "guest-suspend-ram", "guest-suspend-hybrid", "guest-get-vcpus", "guest-set-vcpus", "guest-get-memory-blocks", "guest-set-memory-blocks", - "guest-get-memory-block-size", "guest-get-memory-block-info", + "guest-get-memory-block-info", NULL}; char **p =3D (char **)list; =20 diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 0d1b836e87..9fe670d5b4 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -1995,7 +1995,7 @@ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) "guest-suspend-hybrid", "guest-set-vcpus", "guest-get-memory-blocks", "guest-set-memory-blocks", - "guest-get-memory-block-size", "guest-get-memory-block-info", + "guest-get-memory-block-info", NULL}; char **p =3D (char **)list_unsupported; =20 --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1717509078; cv=none; d=zohomail.com; s=zohoarc; b=KSQ6qe8yvt6rc8sSAfNTUix7WEo5QqoJCSbGOkz4nu++EeD3RtqLlj90ld+w6dfcnaUshm63Fyd0Y0shImEGpnzaiuehSxp3Yt9WBuIUdsRBY7OTYIYRLFkc6fcKx4B82QS8hZ+vzYv04CF/B2/i/qLKJYCaQU833F99HYGEZBk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1717509078; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=FmLblbxu/QyeziUJgyuHZ+37LbEzkQwAyFcMGV/wCJI=; 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bh=FmLblbxu/QyeziUJgyuHZ+37LbEzkQwAyFcMGV/wCJI=; b=DM0TBZOR6XLmw4ZlNKU9ARMTSMndwB7hkcXT86VOtiwI6AlcXx2+gjciZWaqxMidITWTER tv68MaWurdlseGoYqRJKCzCYmX6BWPwk6wZEQe2NfASdV+Xg718TKpOyQUURMJx5pEeCnE Zlvu745Iu9BHK4v6Q9TYMPfwIw4KLBI= X-MC-Unique: JHiQOJDEM_WDwK4RzOSH6g-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 02/20] qga: move linux vcpu command impls to commands-linux.c Date: Tue, 4 Jun 2024 14:49:15 +0100 Message-ID: <20240604134933.220112-3-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509079106100006 The qmp_guest_set_vcpus and qmp_guest_get_vcpus command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Manos Pitsidianakis --- qga/commands-linux.c | 141 +++++++++++++++++++++++++++++++++++++++++++ qga/commands-posix.c | 139 ------------------------------------------ 2 files changed, 141 insertions(+), 139 deletions(-) diff --git a/qga/commands-linux.c b/qga/commands-linux.c index 214e408fcd..78580ac39d 100644 --- a/qga/commands-linux.c +++ b/qga/commands-linux.c @@ -13,6 +13,7 @@ =20 #include "qemu/osdep.h" #include "qapi/error.h" +#include "qga-qapi-commands.h" #include "commands-common.h" #include "cutils.h" #include @@ -284,3 +285,143 @@ int qmp_guest_fsfreeze_do_thaw(Error **errp) return i; } #endif /* CONFIG_FSFREEZE */ + +/* Transfer online/offline status between @vcpu and the guest system. + * + * On input either @errp or *@errp must be NULL. + * + * In system-to-@vcpu direction, the following @vcpu fields are accessed: + * - R: vcpu->logical_id + * - W: vcpu->online + * - W: vcpu->can_offline + * + * In @vcpu-to-system direction, the following @vcpu fields are accessed: + * - R: vcpu->logical_id + * - R: vcpu->online + * + * Written members remain unmodified on error. + */ +static void transfer_vcpu(GuestLogicalProcessor *vcpu, bool sys2vcpu, + char *dirpath, Error **errp) +{ + int fd; + int res; + int dirfd; + static const char fn[] =3D "online"; + + dirfd =3D open(dirpath, O_RDONLY | O_DIRECTORY); + if (dirfd =3D=3D -1) { + error_setg_errno(errp, errno, "open(\"%s\")", dirpath); + return; + } + + fd =3D openat(dirfd, fn, sys2vcpu ? O_RDONLY : O_RDWR); + if (fd =3D=3D -1) { + if (errno !=3D ENOENT) { + error_setg_errno(errp, errno, "open(\"%s/%s\")", dirpath, fn); + } else if (sys2vcpu) { + vcpu->online =3D true; + vcpu->can_offline =3D false; + } else if (!vcpu->online) { + error_setg(errp, "logical processor #%" PRId64 " can't be " + "offlined", vcpu->logical_id); + } /* otherwise pretend successful re-onlining */ + } else { + unsigned char status; + + res =3D pread(fd, &status, 1, 0); + if (res =3D=3D -1) { + error_setg_errno(errp, errno, "pread(\"%s/%s\")", dirpath, fn); + } else if (res =3D=3D 0) { + error_setg(errp, "pread(\"%s/%s\"): unexpected EOF", dirpath, + fn); + } else if (sys2vcpu) { + vcpu->online =3D (status !=3D '0'); + vcpu->can_offline =3D true; + } else if (vcpu->online !=3D (status !=3D '0')) { + status =3D '0' + vcpu->online; + if (pwrite(fd, &status, 1, 0) =3D=3D -1) { + error_setg_errno(errp, errno, "pwrite(\"%s/%s\")", dirpath, + fn); + } + } /* otherwise pretend successful re-(on|off)-lining */ + + res =3D close(fd); + g_assert(res =3D=3D 0); + } + + res =3D close(dirfd); + g_assert(res =3D=3D 0); +} + +GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) +{ + GuestLogicalProcessorList *head, **tail; + const char *cpu_dir =3D "/sys/devices/system/cpu"; + const gchar *line; + g_autoptr(GDir) cpu_gdir =3D NULL; + Error *local_err =3D NULL; + + head =3D NULL; + tail =3D &head; + cpu_gdir =3D g_dir_open(cpu_dir, 0, NULL); + + if (cpu_gdir =3D=3D NULL) { + error_setg_errno(errp, errno, "failed to list entries: %s", cpu_di= r); + return NULL; + } + + while (local_err =3D=3D NULL && (line =3D g_dir_read_name(cpu_gdir)) != =3D NULL) { + GuestLogicalProcessor *vcpu; + int64_t id; + if (sscanf(line, "cpu%" PRId64, &id)) { + g_autofree char *path =3D g_strdup_printf("/sys/devices/system= /cpu/" + "cpu%" PRId64 "/", id); + vcpu =3D g_malloc0(sizeof *vcpu); + vcpu->logical_id =3D id; + vcpu->has_can_offline =3D true; /* lolspeak ftw */ + transfer_vcpu(vcpu, true, path, &local_err); + QAPI_LIST_APPEND(tail, vcpu); + } + } + + if (local_err =3D=3D NULL) { + /* there's no guest with zero VCPUs */ + g_assert(head !=3D NULL); + return head; + } + + qapi_free_GuestLogicalProcessorList(head); + error_propagate(errp, local_err); + return NULL; +} + +int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) +{ + int64_t processed; + Error *local_err =3D NULL; + + processed =3D 0; + while (vcpus !=3D NULL) { + char *path =3D g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId= 64 "/", + vcpus->value->logical_id); + + transfer_vcpu(vcpus->value, false, path, &local_err); + g_free(path); + if (local_err !=3D NULL) { + break; + } + ++processed; + vcpus =3D vcpus->next; + } + + if (local_err !=3D NULL) { + if (processed =3D=3D 0) { + error_propagate(errp, local_err); + } else { + error_free(local_err); + } + } + + return processed; +} diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 76af98ba32..a8ef41f175 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -2003,145 +2003,6 @@ void qmp_guest_suspend_hybrid(Error **errp) guest_suspend(SUSPEND_MODE_HYBRID, errp); } =20 -/* Transfer online/offline status between @vcpu and the guest system. - * - * On input either @errp or *@errp must be NULL. - * - * In system-to-@vcpu direction, the following @vcpu fields are accessed: - * - R: vcpu->logical_id - * - W: vcpu->online - * - W: vcpu->can_offline - * - * In @vcpu-to-system direction, the following @vcpu fields are accessed: - * - R: vcpu->logical_id - * - R: vcpu->online - * - * Written members remain unmodified on error. - */ -static void transfer_vcpu(GuestLogicalProcessor *vcpu, bool sys2vcpu, - char *dirpath, Error **errp) -{ - int fd; - int res; - int dirfd; - static const char fn[] =3D "online"; - - dirfd =3D open(dirpath, O_RDONLY | O_DIRECTORY); - if (dirfd =3D=3D -1) { - error_setg_errno(errp, errno, "open(\"%s\")", dirpath); - return; - } - - fd =3D openat(dirfd, fn, sys2vcpu ? O_RDONLY : O_RDWR); - if (fd =3D=3D -1) { - if (errno !=3D ENOENT) { - error_setg_errno(errp, errno, "open(\"%s/%s\")", dirpath, fn); - } else if (sys2vcpu) { - vcpu->online =3D true; - vcpu->can_offline =3D false; - } else if (!vcpu->online) { - error_setg(errp, "logical processor #%" PRId64 " can't be " - "offlined", vcpu->logical_id); - } /* otherwise pretend successful re-onlining */ - } else { - unsigned char status; - - res =3D pread(fd, &status, 1, 0); - if (res =3D=3D -1) { - error_setg_errno(errp, errno, "pread(\"%s/%s\")", dirpath, fn); - } else if (res =3D=3D 0) { - error_setg(errp, "pread(\"%s/%s\"): unexpected EOF", dirpath, - fn); - } else if (sys2vcpu) { - vcpu->online =3D (status !=3D '0'); - vcpu->can_offline =3D true; - } else if (vcpu->online !=3D (status !=3D '0')) { - status =3D '0' + vcpu->online; - if (pwrite(fd, &status, 1, 0) =3D=3D -1) { - error_setg_errno(errp, errno, "pwrite(\"%s/%s\")", dirpath, - fn); - } - } /* otherwise pretend successful re-(on|off)-lining */ - - res =3D close(fd); - g_assert(res =3D=3D 0); - } - - res =3D close(dirfd); - g_assert(res =3D=3D 0); -} - -GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) -{ - GuestLogicalProcessorList *head, **tail; - const char *cpu_dir =3D "/sys/devices/system/cpu"; - const gchar *line; - g_autoptr(GDir) cpu_gdir =3D NULL; - Error *local_err =3D NULL; - - head =3D NULL; - tail =3D &head; - cpu_gdir =3D g_dir_open(cpu_dir, 0, NULL); - - if (cpu_gdir =3D=3D NULL) { - error_setg_errno(errp, errno, "failed to list entries: %s", cpu_di= r); - return NULL; - } - - while (local_err =3D=3D NULL && (line =3D g_dir_read_name(cpu_gdir)) != =3D NULL) { - GuestLogicalProcessor *vcpu; - int64_t id; - if (sscanf(line, "cpu%" PRId64, &id)) { - g_autofree char *path =3D g_strdup_printf("/sys/devices/system= /cpu/" - "cpu%" PRId64 "/", id); - vcpu =3D g_malloc0(sizeof *vcpu); - vcpu->logical_id =3D id; - vcpu->has_can_offline =3D true; /* lolspeak ftw */ - transfer_vcpu(vcpu, true, path, &local_err); - QAPI_LIST_APPEND(tail, vcpu); - } - } - - if (local_err =3D=3D NULL) { - /* there's no guest with zero VCPUs */ - g_assert(head !=3D NULL); - return head; - } - - qapi_free_GuestLogicalProcessorList(head); - error_propagate(errp, local_err); - return NULL; -} - -int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) -{ - int64_t processed; - Error *local_err =3D NULL; - - processed =3D 0; - while (vcpus !=3D NULL) { - char *path =3D g_strdup_printf("/sys/devices/system/cpu/cpu%" PRId= 64 "/", - vcpus->value->logical_id); - - transfer_vcpu(vcpus->value, false, path, &local_err); - g_free(path); - if (local_err !=3D NULL) { - break; - } - ++processed; - vcpus =3D vcpus->next; - } - - if (local_err !=3D NULL) { - if (processed =3D=3D 0) { - error_propagate(errp, local_err); - } else { - error_free(local_err); - } - } - - return processed; -} #endif /* __linux__ */ =20 #if defined(__linux__) || defined(__FreeBSD__) --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1717509045; cv=none; d=zohomail.com; s=zohoarc; b=FNFfksinYBr6PION0kzB06EmZrkBCZ9+viDSrwQakol6ViVzRrl5S30T+QkTBZAnEma4sjviQsoVB5zrXjo9EEY4hWS9nYt3dTBIuL26SvX99NFaaKxm/deqJzvGJgg7K8ztdjZ5HI/avAkxrdfY3b6f7R7qorX8biqIxfxNtLU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1717509045; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=1tyqUZyd/u210J/j50BmzjWEory9KKkoFnbzz2iP7sk=; b=n2hBFALOkTm62gtf2ytIGDSOj+uct/MRN4ariuR4Tnq+5tzRhJEZtlldiQVpgSTrYY4qcbj4oWoMEjQ1tSGuHXdeFA5y5ZpzKODuwd9lR4iGIwaXnKbI4WzSr0Po6ZXLC7iz1ZRGw9nh5KQd+6HCEnZxOC7p5eiVCeMh9HUsTf4= ARC-Authentication-Results: i=1; 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bh=1tyqUZyd/u210J/j50BmzjWEory9KKkoFnbzz2iP7sk=; b=dU7B95oDl9mCJHh6vV/Ggg8oHwGBv2ix9SPMhkoUVVB1IiDWeY6uRK67PwvXY00fu4TKb+ JpwX3/459NBmqpMVqTdgkCcapz2JYuvKa6CeM+z6X1xFY50ErmifEWb8xYb9feyaTKEm9N Pg7w562x61Hpvo1kEc1f1FvZwwyDjr8= X-MC-Unique: Pot-OKU_PHOUe7uiZXxfxQ-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 03/20] qga: move linux suspend command impls to commands-linux.c Date: Tue, 4 Jun 2024 14:49:16 +0100 Message-ID: <20240604134933.220112-4-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509046982100001 The qmp_guest_suspend_{disk,ram,hybrid} command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Manos Pitsidianakis --- qga/commands-linux.c | 265 +++++++++++++++++++++++++++++++++++++++++++ qga/commands-posix.c | 265 ------------------------------------------- 2 files changed, 265 insertions(+), 265 deletions(-) diff --git a/qga/commands-linux.c b/qga/commands-linux.c index 78580ac39d..3fabf54882 100644 --- a/qga/commands-linux.c +++ b/qga/commands-linux.c @@ -286,6 +286,271 @@ int qmp_guest_fsfreeze_do_thaw(Error **errp) } #endif /* CONFIG_FSFREEZE */ =20 + +#define LINUX_SYS_STATE_FILE "/sys/power/state" +#define SUSPEND_SUPPORTED 0 +#define SUSPEND_NOT_SUPPORTED 1 + +typedef enum { + SUSPEND_MODE_DISK =3D 0, + SUSPEND_MODE_RAM =3D 1, + SUSPEND_MODE_HYBRID =3D 2, +} SuspendMode; + +/* + * Executes a command in a child process using g_spawn_sync, + * returning an int >=3D 0 representing the exit status of the + * process. + * + * If the program wasn't found in path, returns -1. + * + * If a problem happened when creating the child process, + * returns -1 and errp is set. + */ +static int run_process_child(const char *command[], Error **errp) +{ + int exit_status, spawn_flag; + GError *g_err =3D NULL; + bool success; + + spawn_flag =3D G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | + G_SPAWN_STDERR_TO_DEV_NULL; + + success =3D g_spawn_sync(NULL, (char **)command, NULL, spawn_flag, + NULL, NULL, NULL, NULL, + &exit_status, &g_err); + + if (success) { + return WEXITSTATUS(exit_status); + } + + if (g_err && (g_err->code !=3D G_SPAWN_ERROR_NOENT)) { + error_setg(errp, "failed to create child process, error '%s'", + g_err->message); + } + + g_error_free(g_err); + return -1; +} + +static bool systemd_supports_mode(SuspendMode mode, Error **errp) +{ + const char *systemctl_args[3] =3D {"systemd-hibernate", "systemd-suspe= nd", + "systemd-hybrid-sleep"}; + const char *cmd[4] =3D {"systemctl", "status", systemctl_args[mode], N= ULL}; + int status; + + status =3D run_process_child(cmd, errp); + + /* + * systemctl status uses LSB return codes so we can expect + * status > 0 and be ok. To assert if the guest has support + * for the selected suspend mode, status should be < 4. 4 is + * the code for unknown service status, the return value when + * the service does not exist. A common value is status =3D 3 + * (program is not running). + */ + if (status > 0 && status < 4) { + return true; + } + + return false; +} + +static void systemd_suspend(SuspendMode mode, Error **errp) +{ + Error *local_err =3D NULL; + const char *systemctl_args[3] =3D {"hibernate", "suspend", "hybrid-sle= ep"}; + const char *cmd[3] =3D {"systemctl", systemctl_args[mode], NULL}; + int status; + + status =3D run_process_child(cmd, &local_err); + + if (status =3D=3D 0) { + return; + } + + if ((status =3D=3D -1) && !local_err) { + error_setg(errp, "the helper program 'systemctl %s' was not found", + systemctl_args[mode]); + return; + } + + if (local_err) { + error_propagate(errp, local_err); + } else { + error_setg(errp, "the helper program 'systemctl %s' returned an " + "unexpected exit status code (%d)", + systemctl_args[mode], status); + } +} + +static bool pmutils_supports_mode(SuspendMode mode, Error **errp) +{ + Error *local_err =3D NULL; + const char *pmutils_args[3] =3D {"--hibernate", "--suspend", + "--suspend-hybrid"}; + const char *cmd[3] =3D {"pm-is-supported", pmutils_args[mode], NULL}; + int status; + + status =3D run_process_child(cmd, &local_err); + + if (status =3D=3D SUSPEND_SUPPORTED) { + return true; + } + + if ((status =3D=3D -1) && !local_err) { + return false; + } + + if (local_err) { + error_propagate(errp, local_err); + } else { + error_setg(errp, + "the helper program '%s' returned an unexpected exit" + " status code (%d)", "pm-is-supported", status); + } + + return false; +} + +static void pmutils_suspend(SuspendMode mode, Error **errp) +{ + Error *local_err =3D NULL; + const char *pmutils_binaries[3] =3D {"pm-hibernate", "pm-suspend", + "pm-suspend-hybrid"}; + const char *cmd[2] =3D {pmutils_binaries[mode], NULL}; + int status; + + status =3D run_process_child(cmd, &local_err); + + if (status =3D=3D 0) { + return; + } + + if ((status =3D=3D -1) && !local_err) { + error_setg(errp, "the helper program '%s' was not found", + pmutils_binaries[mode]); + return; + } + + if (local_err) { + error_propagate(errp, local_err); + } else { + error_setg(errp, + "the helper program '%s' returned an unexpected exit" + " status code (%d)", pmutils_binaries[mode], status); + } +} + +static bool linux_sys_state_supports_mode(SuspendMode mode, Error **errp) +{ + const char *sysfile_strs[3] =3D {"disk", "mem", NULL}; + const char *sysfile_str =3D sysfile_strs[mode]; + char buf[32]; /* hopefully big enough */ + int fd; + ssize_t ret; + + if (!sysfile_str) { + error_setg(errp, "unknown guest suspend mode"); + return false; + } + + fd =3D open(LINUX_SYS_STATE_FILE, O_RDONLY); + if (fd < 0) { + return false; + } + + ret =3D read(fd, buf, sizeof(buf) - 1); + close(fd); + if (ret <=3D 0) { + return false; + } + buf[ret] =3D '\0'; + + if (strstr(buf, sysfile_str)) { + return true; + } + return false; +} + +static void linux_sys_state_suspend(SuspendMode mode, Error **errp) +{ + g_autoptr(GError) local_gerr =3D NULL; + const char *sysfile_strs[3] =3D {"disk", "mem", NULL}; + const char *sysfile_str =3D sysfile_strs[mode]; + + if (!sysfile_str) { + error_setg(errp, "unknown guest suspend mode"); + return; + } + + if (!g_file_set_contents(LINUX_SYS_STATE_FILE, sysfile_str, + -1, &local_gerr)) { + error_setg(errp, "suspend: cannot write to '%s': %s", + LINUX_SYS_STATE_FILE, local_gerr->message); + return; + } +} + +static void guest_suspend(SuspendMode mode, Error **errp) +{ + Error *local_err =3D NULL; + bool mode_supported =3D false; + + if (systemd_supports_mode(mode, &local_err)) { + mode_supported =3D true; + systemd_suspend(mode, &local_err); + + if (!local_err) { + return; + } + } + + error_free(local_err); + local_err =3D NULL; + + if (pmutils_supports_mode(mode, &local_err)) { + mode_supported =3D true; + pmutils_suspend(mode, &local_err); + + if (!local_err) { + return; + } + } + + error_free(local_err); + local_err =3D NULL; + + if (linux_sys_state_supports_mode(mode, &local_err)) { + mode_supported =3D true; + linux_sys_state_suspend(mode, &local_err); + } + + if (!mode_supported) { + error_free(local_err); + error_setg(errp, + "the requested suspend mode is not supported by the gue= st"); + } else { + error_propagate(errp, local_err); + } +} + +void qmp_guest_suspend_disk(Error **errp) +{ + guest_suspend(SUSPEND_MODE_DISK, errp); +} + +void qmp_guest_suspend_ram(Error **errp) +{ + guest_suspend(SUSPEND_MODE_RAM, errp); +} + +void qmp_guest_suspend_hybrid(Error **errp) +{ + guest_suspend(SUSPEND_MODE_HYBRID, errp); +} + /* Transfer online/offline status between @vcpu and the guest system. * * On input either @errp or *@errp must be NULL. diff --git a/qga/commands-posix.c b/qga/commands-posix.c index a8ef41f175..ef21da63be 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1738,271 +1738,6 @@ qmp_guest_fstrim(bool has_minimum, int64_t minimum,= Error **errp) } #endif /* CONFIG_FSTRIM */ =20 - -#define LINUX_SYS_STATE_FILE "/sys/power/state" -#define SUSPEND_SUPPORTED 0 -#define SUSPEND_NOT_SUPPORTED 1 - -typedef enum { - SUSPEND_MODE_DISK =3D 0, - SUSPEND_MODE_RAM =3D 1, - SUSPEND_MODE_HYBRID =3D 2, -} SuspendMode; - -/* - * Executes a command in a child process using g_spawn_sync, - * returning an int >=3D 0 representing the exit status of the - * process. - * - * If the program wasn't found in path, returns -1. - * - * If a problem happened when creating the child process, - * returns -1 and errp is set. - */ -static int run_process_child(const char *command[], Error **errp) -{ - int exit_status, spawn_flag; - GError *g_err =3D NULL; - bool success; - - spawn_flag =3D G_SPAWN_SEARCH_PATH | G_SPAWN_STDOUT_TO_DEV_NULL | - G_SPAWN_STDERR_TO_DEV_NULL; - - success =3D g_spawn_sync(NULL, (char **)command, NULL, spawn_flag, - NULL, NULL, NULL, NULL, - &exit_status, &g_err); - - if (success) { - return WEXITSTATUS(exit_status); - } - - if (g_err && (g_err->code !=3D G_SPAWN_ERROR_NOENT)) { - error_setg(errp, "failed to create child process, error '%s'", - g_err->message); - } - - g_error_free(g_err); - return -1; -} - -static bool systemd_supports_mode(SuspendMode mode, Error **errp) -{ - const char *systemctl_args[3] =3D {"systemd-hibernate", "systemd-suspe= nd", - "systemd-hybrid-sleep"}; - const char *cmd[4] =3D {"systemctl", "status", systemctl_args[mode], N= ULL}; - int status; - - status =3D run_process_child(cmd, errp); - - /* - * systemctl status uses LSB return codes so we can expect - * status > 0 and be ok. To assert if the guest has support - * for the selected suspend mode, status should be < 4. 4 is - * the code for unknown service status, the return value when - * the service does not exist. A common value is status =3D 3 - * (program is not running). - */ - if (status > 0 && status < 4) { - return true; - } - - return false; -} - -static void systemd_suspend(SuspendMode mode, Error **errp) -{ - Error *local_err =3D NULL; - const char *systemctl_args[3] =3D {"hibernate", "suspend", "hybrid-sle= ep"}; - const char *cmd[3] =3D {"systemctl", systemctl_args[mode], NULL}; - int status; - - status =3D run_process_child(cmd, &local_err); - - if (status =3D=3D 0) { - return; - } - - if ((status =3D=3D -1) && !local_err) { - error_setg(errp, "the helper program 'systemctl %s' was not found", - systemctl_args[mode]); - return; - } - - if (local_err) { - error_propagate(errp, local_err); - } else { - error_setg(errp, "the helper program 'systemctl %s' returned an " - "unexpected exit status code (%d)", - systemctl_args[mode], status); - } -} - -static bool pmutils_supports_mode(SuspendMode mode, Error **errp) -{ - Error *local_err =3D NULL; - const char *pmutils_args[3] =3D {"--hibernate", "--suspend", - "--suspend-hybrid"}; - const char *cmd[3] =3D {"pm-is-supported", pmutils_args[mode], NULL}; - int status; - - status =3D run_process_child(cmd, &local_err); - - if (status =3D=3D SUSPEND_SUPPORTED) { - return true; - } - - if ((status =3D=3D -1) && !local_err) { - return false; - } - - if (local_err) { - error_propagate(errp, local_err); - } else { - error_setg(errp, - "the helper program '%s' returned an unexpected exit" - " status code (%d)", "pm-is-supported", status); - } - - return false; -} - -static void pmutils_suspend(SuspendMode mode, Error **errp) -{ - Error *local_err =3D NULL; - const char *pmutils_binaries[3] =3D {"pm-hibernate", "pm-suspend", - "pm-suspend-hybrid"}; - const char *cmd[2] =3D {pmutils_binaries[mode], NULL}; - int status; - - status =3D run_process_child(cmd, &local_err); - - if (status =3D=3D 0) { - return; - } - - if ((status =3D=3D -1) && !local_err) { - error_setg(errp, "the helper program '%s' was not found", - pmutils_binaries[mode]); - return; - } - - if (local_err) { - error_propagate(errp, local_err); - } else { - error_setg(errp, - "the helper program '%s' returned an unexpected exit" - " status code (%d)", pmutils_binaries[mode], status); - } -} - -static bool linux_sys_state_supports_mode(SuspendMode mode, Error **errp) -{ - const char *sysfile_strs[3] =3D {"disk", "mem", NULL}; - const char *sysfile_str =3D sysfile_strs[mode]; - char buf[32]; /* hopefully big enough */ - int fd; - ssize_t ret; - - if (!sysfile_str) { - error_setg(errp, "unknown guest suspend mode"); - return false; - } - - fd =3D open(LINUX_SYS_STATE_FILE, O_RDONLY); - if (fd < 0) { - return false; - } - - ret =3D read(fd, buf, sizeof(buf) - 1); - close(fd); - if (ret <=3D 0) { - return false; - } - buf[ret] =3D '\0'; - - if (strstr(buf, sysfile_str)) { - return true; - } - return false; -} - -static void linux_sys_state_suspend(SuspendMode mode, Error **errp) -{ - g_autoptr(GError) local_gerr =3D NULL; - const char *sysfile_strs[3] =3D {"disk", "mem", NULL}; - const char *sysfile_str =3D sysfile_strs[mode]; - - if (!sysfile_str) { - error_setg(errp, "unknown guest suspend mode"); - return; - } - - if (!g_file_set_contents(LINUX_SYS_STATE_FILE, sysfile_str, - -1, &local_gerr)) { - error_setg(errp, "suspend: cannot write to '%s': %s", - LINUX_SYS_STATE_FILE, local_gerr->message); - return; - } -} - -static void guest_suspend(SuspendMode mode, Error **errp) -{ - Error *local_err =3D NULL; - bool mode_supported =3D false; - - if (systemd_supports_mode(mode, &local_err)) { - mode_supported =3D true; - systemd_suspend(mode, &local_err); - - if (!local_err) { - return; - } - } - - error_free(local_err); - local_err =3D NULL; - - if (pmutils_supports_mode(mode, &local_err)) { - mode_supported =3D true; - pmutils_suspend(mode, &local_err); - - if (!local_err) { - return; - } - } - - error_free(local_err); - local_err =3D NULL; - - if (linux_sys_state_supports_mode(mode, &local_err)) { - mode_supported =3D true; - linux_sys_state_suspend(mode, &local_err); - } - - if (!mode_supported) { - error_free(local_err); - error_setg(errp, - "the requested suspend mode is not supported by the gue= st"); - } else { - error_propagate(errp, local_err); - } -} - -void qmp_guest_suspend_disk(Error **errp) -{ - guest_suspend(SUSPEND_MODE_DISK, errp); -} - -void qmp_guest_suspend_ram(Error **errp) -{ - guest_suspend(SUSPEND_MODE_RAM, errp); -} - -void qmp_guest_suspend_hybrid(Error **errp) -{ - guest_suspend(SUSPEND_MODE_HYBRID, errp); -} - #endif /* __linux__ */ =20 #if defined(__linux__) || defined(__FreeBSD__) --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1717509128; cv=none; d=zohomail.com; s=zohoarc; b=g3nidGx6R89sK0fxhaXG1QDx2d9NwM9zoJEFKEBnYy/d5szdULMSQIltMwfJOyg1tHLTDsGzEKjZGdLhIxrZuiQQstKa9R9M3MRXwpcqWwpd6PW3hutWE34H9gg7TUCaGP7VxewlKX90b3HAO1DYdM0YnwqEqEFKAgvF+IQqHXU= ARC-Message-Signature: i=1; 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Tue, 4 Jun 2024 13:49:46 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.39.194.137]) by smtp.corp.redhat.com (Postfix) with ESMTP id 1D6F8C15C40; Tue, 4 Jun 2024 13:49:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717508988; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=BRaLB2/7ZUl1uMaokr2bYu4ylTAll+wE8d3oqXWsJQg=; b=Os9yb3L0U+UO5qX/73yt2YPwpYDg1+Z62zEA/ybjYefyim7XOqoRNYYiJY0RoyRbF131Tg xLEN79BfIHFg97O/6tFMFSgiUOvYHHH2Me6/0MD7Tl5pWnKriicvEzrkpgUlYYbyCJepoH ru/91sv/Gza8eyEdysLKns5DkDPshPE= X-MC-Unique: GOd-Ppo3Mvi3rkAfC4TcLQ-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 04/20] qga: move linux fs/disk command impls to commands-linux.c Date: Tue, 4 Jun 2024 14:49:17 +0100 Message-ID: <20240604134933.220112-5-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509129459100001 The qmp_guest_{fstrim, get_fsinfo, get_disks} command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c Signed-off-by: Daniel P. Berrang=C3=A9 Reviewed-by: Manos Pitsidianakis --- qga/commands-linux.c | 904 ++++++++++++++++++++++++++++++++++++++++++ qga/commands-posix.c | 909 ------------------------------------------- 2 files changed, 904 insertions(+), 909 deletions(-) diff --git a/qga/commands-linux.c b/qga/commands-linux.c index 3fabf54882..084e6c9e85 100644 --- a/qga/commands-linux.c +++ b/qga/commands-linux.c @@ -14,10 +14,21 @@ #include "qemu/osdep.h" #include "qapi/error.h" #include "qga-qapi-commands.h" +#include "qapi/error.h" +#include "qapi/qmp/qerror.h" #include "commands-common.h" #include "cutils.h" #include #include +#include +#include +#include "block/nvme.h" + +#ifdef CONFIG_LIBUDEV +#include +#endif + +#include =20 #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM) static int dev_major_minor(const char *devpath, @@ -286,6 +297,899 @@ int qmp_guest_fsfreeze_do_thaw(Error **errp) } #endif /* CONFIG_FSFREEZE */ =20 +#if defined(CONFIG_FSFREEZE) + +static char *get_pci_driver(char const *syspath, int pathlen, Error **errp) +{ + char *path; + char *dpath; + char *driver =3D NULL; + char buf[PATH_MAX]; + ssize_t len; + + path =3D g_strndup(syspath, pathlen); + dpath =3D g_strdup_printf("%s/driver", path); + len =3D readlink(dpath, buf, sizeof(buf) - 1); + if (len !=3D -1) { + buf[len] =3D 0; + driver =3D g_path_get_basename(buf); + } + g_free(dpath); + g_free(path); + return driver; +} + +static int compare_uint(const void *_a, const void *_b) +{ + unsigned int a =3D *(unsigned int *)_a; + unsigned int b =3D *(unsigned int *)_b; + + return a < b ? -1 : a > b ? 1 : 0; +} + +/* Walk the specified sysfs and build a sorted list of host or ata numbers= */ +static int build_hosts(char const *syspath, char const *host, bool ata, + unsigned int *hosts, int hosts_max, Error **errp) +{ + char *path; + DIR *dir; + struct dirent *entry; + int i =3D 0; + + path =3D g_strndup(syspath, host - syspath); + dir =3D opendir(path); + if (!dir) { + error_setg_errno(errp, errno, "opendir(\"%s\")", path); + g_free(path); + return -1; + } + + while (i < hosts_max) { + entry =3D readdir(dir); + if (!entry) { + break; + } + if (ata && sscanf(entry->d_name, "ata%d", hosts + i) =3D=3D 1) { + ++i; + } else if (!ata && sscanf(entry->d_name, "host%d", hosts + i) =3D= =3D 1) { + ++i; + } + } + + qsort(hosts, i, sizeof(hosts[0]), compare_uint); + + g_free(path); + closedir(dir); + return i; +} + +/* + * Store disk device info for devices on the PCI bus. + * Returns true if information has been stored, or false for failure. + */ +static bool build_guest_fsinfo_for_pci_dev(char const *syspath, + GuestDiskAddress *disk, + Error **errp) +{ + unsigned int pci[4], host, hosts[8], tgt[3]; + int i, nhosts =3D 0, pcilen; + GuestPCIAddress *pciaddr =3D disk->pci_controller; + bool has_ata =3D false, has_host =3D false, has_tgt =3D false; + char *p, *q, *driver =3D NULL; + bool ret =3D false; + + p =3D strstr(syspath, "/devices/pci"); + if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n", + pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) { + g_debug("only pci device is supported: sysfs path '%s'", syspath); + return false; + } + + p +=3D 12 + pcilen; + while (true) { + driver =3D get_pci_driver(syspath, p - syspath, errp); + if (driver && (g_str_equal(driver, "ata_piix") || + g_str_equal(driver, "sym53c8xx") || + g_str_equal(driver, "virtio-pci") || + g_str_equal(driver, "ahci") || + g_str_equal(driver, "nvme") || + g_str_equal(driver, "xhci_hcd") || + g_str_equal(driver, "ehci-pci"))) { + break; + } + + g_free(driver); + if (sscanf(p, "/%x:%x:%x.%x%n", + pci, pci + 1, pci + 2, pci + 3, &pcilen) =3D=3D = 4) { + p +=3D pcilen; + continue; + } + + g_debug("unsupported driver or sysfs path '%s'", syspath); + return false; + } + + p =3D strstr(syspath, "/target"); + if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", + tgt, tgt + 1, tgt + 2) =3D=3D 3) { + has_tgt =3D true; + } + + p =3D strstr(syspath, "/ata"); + if (p) { + q =3D p + 4; + has_ata =3D true; + } else { + p =3D strstr(syspath, "/host"); + q =3D p + 5; + } + if (p && sscanf(q, "%u", &host) =3D=3D 1) { + has_host =3D true; + nhosts =3D build_hosts(syspath, p, has_ata, hosts, + ARRAY_SIZE(hosts), errp); + if (nhosts < 0) { + goto cleanup; + } + } + + pciaddr->domain =3D pci[0]; + pciaddr->bus =3D pci[1]; + pciaddr->slot =3D pci[2]; + pciaddr->function =3D pci[3]; + + if (strcmp(driver, "ata_piix") =3D=3D 0) { + /* a host per ide bus, target*:0::0 */ + if (!has_host || !has_tgt) { + g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driv= er); + goto cleanup; + } + for (i =3D 0; i < nhosts; i++) { + if (host =3D=3D hosts[i]) { + disk->bus_type =3D GUEST_DISK_BUS_TYPE_IDE; + disk->bus =3D i; + disk->unit =3D tgt[1]; + break; + } + } + if (i >=3D nhosts) { + g_debug("no host for '%s' (driver '%s')", syspath, driver); + goto cleanup; + } + } else if (strcmp(driver, "sym53c8xx") =3D=3D 0) { + /* scsi(LSI Logic): target*:0::0 */ + if (!has_tgt) { + g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driv= er); + goto cleanup; + } + disk->bus_type =3D GUEST_DISK_BUS_TYPE_SCSI; + disk->unit =3D tgt[1]; + } else if (strcmp(driver, "virtio-pci") =3D=3D 0) { + if (has_tgt) { + /* virtio-scsi: target*:0:0: */ + disk->bus_type =3D GUEST_DISK_BUS_TYPE_SCSI; + disk->unit =3D tgt[2]; + } else { + /* virtio-blk: 1 disk per 1 device */ + disk->bus_type =3D GUEST_DISK_BUS_TYPE_VIRTIO; + } + } else if (strcmp(driver, "ahci") =3D=3D 0) { + /* ahci: 1 host per 1 unit */ + if (!has_host || !has_tgt) { + g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driv= er); + goto cleanup; + } + for (i =3D 0; i < nhosts; i++) { + if (host =3D=3D hosts[i]) { + disk->unit =3D i; + disk->bus_type =3D GUEST_DISK_BUS_TYPE_SATA; + break; + } + } + if (i >=3D nhosts) { + g_debug("no host for '%s' (driver '%s')", syspath, driver); + goto cleanup; + } + } else if (strcmp(driver, "nvme") =3D=3D 0) { + disk->bus_type =3D GUEST_DISK_BUS_TYPE_NVME; + } else if (strcmp(driver, "ehci-pci") =3D=3D 0 || strcmp(driver, "xhci= _hcd") =3D=3D 0) { + disk->bus_type =3D GUEST_DISK_BUS_TYPE_USB; + } else { + g_debug("unknown driver '%s' (sysfs path '%s')", driver, syspath); + goto cleanup; + } + + ret =3D true; + +cleanup: + g_free(driver); + return ret; +} + +/* + * Store disk device info for non-PCI virtio devices (for example s390x + * channel I/O devices). Returns true if information has been stored, or + * false for failure. + */ +static bool build_guest_fsinfo_for_nonpci_virtio(char const *syspath, + GuestDiskAddress *disk, + Error **errp) +{ + unsigned int tgt[3]; + char *p; + + if (!strstr(syspath, "/virtio") || !strstr(syspath, "/block")) { + g_debug("Unsupported virtio device '%s'", syspath); + return false; + } + + p =3D strstr(syspath, "/target"); + if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", + &tgt[0], &tgt[1], &tgt[2]) =3D=3D 3) { + /* virtio-scsi: target*:0:: */ + disk->bus_type =3D GUEST_DISK_BUS_TYPE_SCSI; + disk->bus =3D tgt[0]; + disk->target =3D tgt[1]; + disk->unit =3D tgt[2]; + } else { + /* virtio-blk: 1 disk per 1 device */ + disk->bus_type =3D GUEST_DISK_BUS_TYPE_VIRTIO; + } + + return true; +} + +/* + * Store disk device info for CCW devices (s390x channel I/O devices). + * Returns true if information has been stored, or false for failure. + */ +static bool build_guest_fsinfo_for_ccw_dev(char const *syspath, + GuestDiskAddress *disk, + Error **errp) +{ + unsigned int cssid, ssid, subchno, devno; + char *p; + + p =3D strstr(syspath, "/devices/css"); + if (!p || sscanf(p + 12, "%*x/%x.%x.%x/%*x.%*x.%x/", + &cssid, &ssid, &subchno, &devno) < 4) { + g_debug("could not parse ccw device sysfs path: %s", syspath); + return false; + } + + disk->ccw_address =3D g_new0(GuestCCWAddress, 1); + disk->ccw_address->cssid =3D cssid; + disk->ccw_address->ssid =3D ssid; + disk->ccw_address->subchno =3D subchno; + disk->ccw_address->devno =3D devno; + + if (strstr(p, "/virtio")) { + build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp); + } + + return true; +} + +/* Store disk device info specified by @sysfs into @fs */ +static void build_guest_fsinfo_for_real_device(char const *syspath, + GuestFilesystemInfo *fs, + Error **errp) +{ + GuestDiskAddress *disk; + GuestPCIAddress *pciaddr; + bool has_hwinf; +#ifdef CONFIG_LIBUDEV + struct udev *udev =3D NULL; + struct udev_device *udevice =3D NULL; +#endif + + pciaddr =3D g_new0(GuestPCIAddress, 1); + pciaddr->domain =3D -1; /* -1 means field is inv= alid */ + pciaddr->bus =3D -1; + pciaddr->slot =3D -1; + pciaddr->function =3D -1; + + disk =3D g_new0(GuestDiskAddress, 1); + disk->pci_controller =3D pciaddr; + disk->bus_type =3D GUEST_DISK_BUS_TYPE_UNKNOWN; + +#ifdef CONFIG_LIBUDEV + udev =3D udev_new(); + udevice =3D udev_device_new_from_syspath(udev, syspath); + if (udev =3D=3D NULL || udevice =3D=3D NULL) { + g_debug("failed to query udev"); + } else { + const char *devnode, *serial; + devnode =3D udev_device_get_devnode(udevice); + if (devnode !=3D NULL) { + disk->dev =3D g_strdup(devnode); + } + serial =3D udev_device_get_property_value(udevice, "ID_SERIAL"); + if (serial !=3D NULL && *serial !=3D 0) { + disk->serial =3D g_strdup(serial); + } + } + + udev_unref(udev); + udev_device_unref(udevice); +#endif + + if (strstr(syspath, "/devices/pci")) { + has_hwinf =3D build_guest_fsinfo_for_pci_dev(syspath, disk, errp); + } else if (strstr(syspath, "/devices/css")) { + has_hwinf =3D build_guest_fsinfo_for_ccw_dev(syspath, disk, errp); + } else if (strstr(syspath, "/virtio")) { + has_hwinf =3D build_guest_fsinfo_for_nonpci_virtio(syspath, disk, = errp); + } else { + g_debug("Unsupported device type for '%s'", syspath); + has_hwinf =3D false; + } + + if (has_hwinf || disk->dev || disk->serial) { + QAPI_LIST_PREPEND(fs->disk, disk); + } else { + qapi_free_GuestDiskAddress(disk); + } +} + +static void build_guest_fsinfo_for_device(char const *devpath, + GuestFilesystemInfo *fs, + Error **errp); + +/* Store a list of slave devices of virtual volume specified by @syspath i= nto + * @fs */ +static void build_guest_fsinfo_for_virtual_device(char const *syspath, + GuestFilesystemInfo *fs, + Error **errp) +{ + Error *err =3D NULL; + DIR *dir; + char *dirpath; + struct dirent *entry; + + dirpath =3D g_strdup_printf("%s/slaves", syspath); + dir =3D opendir(dirpath); + if (!dir) { + if (errno !=3D ENOENT) { + error_setg_errno(errp, errno, "opendir(\"%s\")", dirpath); + } + g_free(dirpath); + return; + } + + for (;;) { + errno =3D 0; + entry =3D readdir(dir); + if (entry =3D=3D NULL) { + if (errno) { + error_setg_errno(errp, errno, "readdir(\"%s\")", dirpath); + } + break; + } + + if (entry->d_type =3D=3D DT_LNK) { + char *path; + + g_debug(" slave device '%s'", entry->d_name); + path =3D g_strdup_printf("%s/slaves/%s", syspath, entry->d_nam= e); + build_guest_fsinfo_for_device(path, fs, &err); + g_free(path); + + if (err) { + error_propagate(errp, err); + break; + } + } + } + + g_free(dirpath); + closedir(dir); +} + +static bool is_disk_virtual(const char *devpath, Error **errp) +{ + g_autofree char *syspath =3D realpath(devpath, NULL); + + if (!syspath) { + error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); + return false; + } + return strstr(syspath, "/devices/virtual/block/") !=3D NULL; +} + +/* Dispatch to functions for virtual/real device */ +static void build_guest_fsinfo_for_device(char const *devpath, + GuestFilesystemInfo *fs, + Error **errp) +{ + ERRP_GUARD(); + g_autofree char *syspath =3D NULL; + bool is_virtual =3D false; + + syspath =3D realpath(devpath, NULL); + if (!syspath) { + if (errno !=3D ENOENT) { + error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); + return; + } + + /* ENOENT: This devpath may not exist because of container config = */ + if (!fs->name) { + fs->name =3D g_path_get_basename(devpath); + } + return; + } + + if (!fs->name) { + fs->name =3D g_path_get_basename(syspath); + } + + g_debug(" parse sysfs path '%s'", syspath); + is_virtual =3D is_disk_virtual(syspath, errp); + if (*errp !=3D NULL) { + return; + } + if (is_virtual) { + build_guest_fsinfo_for_virtual_device(syspath, fs, errp); + } else { + build_guest_fsinfo_for_real_device(syspath, fs, errp); + } +} + +#ifdef CONFIG_LIBUDEV + +/* + * Wrapper around build_guest_fsinfo_for_device() for getting just + * the disk address. + */ +static GuestDiskAddress *get_disk_address(const char *syspath, Error **err= p) +{ + g_autoptr(GuestFilesystemInfo) fs =3D NULL; + + fs =3D g_new0(GuestFilesystemInfo, 1); + build_guest_fsinfo_for_device(syspath, fs, errp); + if (fs->disk !=3D NULL) { + return g_steal_pointer(&fs->disk->value); + } + return NULL; +} + +static char *get_alias_for_syspath(const char *syspath) +{ + struct udev *udev =3D NULL; + struct udev_device *udevice =3D NULL; + char *ret =3D NULL; + + udev =3D udev_new(); + if (udev =3D=3D NULL) { + g_debug("failed to query udev"); + goto out; + } + udevice =3D udev_device_new_from_syspath(udev, syspath); + if (udevice =3D=3D NULL) { + g_debug("failed to query udev for path: %s", syspath); + goto out; + } else { + const char *alias =3D udev_device_get_property_value( + udevice, "DM_NAME"); + /* + * NULL means there was an error and empty string means there is no + * alias. In case of no alias we return NULL instead of empty stri= ng. + */ + if (alias =3D=3D NULL) { + g_debug("failed to query udev for device alias for: %s", + syspath); + } else if (*alias !=3D 0) { + ret =3D g_strdup(alias); + } + } + +out: + udev_unref(udev); + udev_device_unref(udevice); + return ret; +} + +static char *get_device_for_syspath(const char *syspath) +{ + struct udev *udev =3D NULL; + struct udev_device *udevice =3D NULL; + char *ret =3D NULL; + + udev =3D udev_new(); + if (udev =3D=3D NULL) { + g_debug("failed to query udev"); + goto out; + } + udevice =3D udev_device_new_from_syspath(udev, syspath); + if (udevice =3D=3D NULL) { + g_debug("failed to query udev for path: %s", syspath); + goto out; + } else { + ret =3D g_strdup(udev_device_get_devnode(udevice)); + } + +out: + udev_unref(udev); + udev_device_unref(udevice); + return ret; +} + +static void get_disk_deps(const char *disk_dir, GuestDiskInfo *disk) +{ + g_autofree char *deps_dir =3D NULL; + const gchar *dep; + GDir *dp_deps =3D NULL; + + /* List dependent disks */ + deps_dir =3D g_strdup_printf("%s/slaves", disk_dir); + g_debug(" listing entries in: %s", deps_dir); + dp_deps =3D g_dir_open(deps_dir, 0, NULL); + if (dp_deps =3D=3D NULL) { + g_debug("failed to list entries in %s", deps_dir); + return; + } + disk->has_dependencies =3D true; + while ((dep =3D g_dir_read_name(dp_deps)) !=3D NULL) { + g_autofree char *dep_dir =3D NULL; + char *dev_name; + + /* Add dependent disks */ + dep_dir =3D g_strdup_printf("%s/%s", deps_dir, dep); + dev_name =3D get_device_for_syspath(dep_dir); + if (dev_name !=3D NULL) { + g_debug(" adding dependent device: %s", dev_name); + QAPI_LIST_PREPEND(disk->dependencies, dev_name); + } + } + g_dir_close(dp_deps); +} + +/* + * Detect partitions subdirectory, name is "" or + * "p" + * + * @disk_name -- last component of /sys path (e.g. sda) + * @disk_dir -- sys path of the disk (e.g. /sys/block/sda) + * @disk_dev -- device node of the disk (e.g. /dev/sda) + */ +static GuestDiskInfoList *get_disk_partitions( + GuestDiskInfoList *list, + const char *disk_name, const char *disk_dir, + const char *disk_dev) +{ + GuestDiskInfoList *ret =3D list; + struct dirent *de_disk; + DIR *dp_disk =3D NULL; + size_t len =3D strlen(disk_name); + + dp_disk =3D opendir(disk_dir); + while ((de_disk =3D readdir(dp_disk)) !=3D NULL) { + g_autofree char *partition_dir =3D NULL; + char *dev_name; + GuestDiskInfo *partition; + + if (!(de_disk->d_type & DT_DIR)) { + continue; + } + + if (!(strncmp(disk_name, de_disk->d_name, len) =3D=3D 0 && + ((*(de_disk->d_name + len) =3D=3D 'p' && + isdigit(*(de_disk->d_name + len + 1))) || + isdigit(*(de_disk->d_name + len))))) { + continue; + } + + partition_dir =3D g_strdup_printf("%s/%s", + disk_dir, de_disk->d_name); + dev_name =3D get_device_for_syspath(partition_dir); + if (dev_name =3D=3D NULL) { + g_debug("Failed to get device name for syspath: %s", + disk_dir); + continue; + } + partition =3D g_new0(GuestDiskInfo, 1); + partition->name =3D dev_name; + partition->partition =3D true; + partition->has_dependencies =3D true; + /* Add parent disk as dependent for easier tracking of hierarchy */ + QAPI_LIST_PREPEND(partition->dependencies, g_strdup(disk_dev)); + + QAPI_LIST_PREPEND(ret, partition); + } + closedir(dp_disk); + + return ret; +} + +static void get_nvme_smart(GuestDiskInfo *disk) +{ + int fd; + GuestNVMeSmart *smart; + NvmeSmartLog log =3D {0}; + struct nvme_admin_cmd cmd =3D { + .opcode =3D NVME_ADM_CMD_GET_LOG_PAGE, + .nsid =3D NVME_NSID_BROADCAST, + .addr =3D (uintptr_t)&log, + .data_len =3D sizeof(log), + .cdw10 =3D NVME_LOG_SMART_INFO | (1 << 15) /* RAE bit */ + | (((sizeof(log) >> 2) - 1) << 16) + }; + + fd =3D qga_open_cloexec(disk->name, O_RDONLY, 0); + if (fd =3D=3D -1) { + g_debug("Failed to open device: %s: %s", disk->name, g_strerror(er= rno)); + return; + } + + if (ioctl(fd, NVME_IOCTL_ADMIN_CMD, &cmd)) { + g_debug("Failed to get smart: %s: %s", disk->name, g_strerror(errn= o)); + close(fd); + return; + } + + disk->smart =3D g_new0(GuestDiskSmart, 1); + disk->smart->type =3D GUEST_DISK_BUS_TYPE_NVME; + + smart =3D &disk->smart->u.nvme; + smart->critical_warning =3D log.critical_warning; + smart->temperature =3D lduw_le_p(&log.temperature); /* unaligned field= */ + smart->available_spare =3D log.available_spare; + smart->available_spare_threshold =3D log.available_spare_threshold; + smart->percentage_used =3D log.percentage_used; + smart->data_units_read_lo =3D le64_to_cpu(log.data_units_read[0]); + smart->data_units_read_hi =3D le64_to_cpu(log.data_units_read[1]); + smart->data_units_written_lo =3D le64_to_cpu(log.data_units_written[0]= ); + smart->data_units_written_hi =3D le64_to_cpu(log.data_units_written[1]= ); + smart->host_read_commands_lo =3D le64_to_cpu(log.host_read_commands[0]= ); + smart->host_read_commands_hi =3D le64_to_cpu(log.host_read_commands[1]= ); + smart->host_write_commands_lo =3D le64_to_cpu(log.host_write_commands[= 0]); + smart->host_write_commands_hi =3D le64_to_cpu(log.host_write_commands[= 1]); + smart->controller_busy_time_lo =3D le64_to_cpu(log.controller_busy_tim= e[0]); + smart->controller_busy_time_hi =3D le64_to_cpu(log.controller_busy_tim= e[1]); + smart->power_cycles_lo =3D le64_to_cpu(log.power_cycles[0]); + smart->power_cycles_hi =3D le64_to_cpu(log.power_cycles[1]); + smart->power_on_hours_lo =3D le64_to_cpu(log.power_on_hours[0]); + smart->power_on_hours_hi =3D le64_to_cpu(log.power_on_hours[1]); + smart->unsafe_shutdowns_lo =3D le64_to_cpu(log.unsafe_shutdowns[0]); + smart->unsafe_shutdowns_hi =3D le64_to_cpu(log.unsafe_shutdowns[1]); + smart->media_errors_lo =3D le64_to_cpu(log.media_errors[0]); + smart->media_errors_hi =3D le64_to_cpu(log.media_errors[1]); + smart->number_of_error_log_entries_lo =3D + le64_to_cpu(log.number_of_error_log_entries[0]); + smart->number_of_error_log_entries_hi =3D + le64_to_cpu(log.number_of_error_log_entries[1]); + + close(fd); +} + +static void get_disk_smart(GuestDiskInfo *disk) +{ + if (disk->address + && (disk->address->bus_type =3D=3D GUEST_DISK_BUS_TYPE_NVME)) { + get_nvme_smart(disk); + } +} + +GuestDiskInfoList *qmp_guest_get_disks(Error **errp) +{ + GuestDiskInfoList *ret =3D NULL; + GuestDiskInfo *disk; + DIR *dp =3D NULL; + struct dirent *de =3D NULL; + + g_debug("listing /sys/block directory"); + dp =3D opendir("/sys/block"); + if (dp =3D=3D NULL) { + error_setg_errno(errp, errno, "Can't open directory \"/sys/block\"= "); + return NULL; + } + while ((de =3D readdir(dp)) !=3D NULL) { + g_autofree char *disk_dir =3D NULL, *line =3D NULL, + *size_path =3D NULL; + char *dev_name; + Error *local_err =3D NULL; + if (de->d_type !=3D DT_LNK) { + g_debug(" skipping entry: %s", de->d_name); + continue; + } + + /* Check size and skip zero-sized disks */ + g_debug(" checking disk size"); + size_path =3D g_strdup_printf("/sys/block/%s/size", de->d_name); + if (!g_file_get_contents(size_path, &line, NULL, NULL)) { + g_debug(" failed to read disk size"); + continue; + } + if (g_strcmp0(line, "0\n") =3D=3D 0) { + g_debug(" skipping zero-sized disk"); + continue; + } + + g_debug(" adding %s", de->d_name); + disk_dir =3D g_strdup_printf("/sys/block/%s", de->d_name); + dev_name =3D get_device_for_syspath(disk_dir); + if (dev_name =3D=3D NULL) { + g_debug("Failed to get device name for syspath: %s", + disk_dir); + continue; + } + disk =3D g_new0(GuestDiskInfo, 1); + disk->name =3D dev_name; + disk->partition =3D false; + disk->alias =3D get_alias_for_syspath(disk_dir); + QAPI_LIST_PREPEND(ret, disk); + + /* Get address for non-virtual devices */ + bool is_virtual =3D is_disk_virtual(disk_dir, &local_err); + if (local_err !=3D NULL) { + g_debug(" failed to check disk path, ignoring error: %s", + error_get_pretty(local_err)); + error_free(local_err); + local_err =3D NULL; + /* Don't try to get the address */ + is_virtual =3D true; + } + if (!is_virtual) { + disk->address =3D get_disk_address(disk_dir, &local_err); + if (local_err !=3D NULL) { + g_debug(" failed to get device info, ignoring error: %s", + error_get_pretty(local_err)); + error_free(local_err); + local_err =3D NULL; + } + } + + get_disk_deps(disk_dir, disk); + get_disk_smart(disk); + ret =3D get_disk_partitions(ret, de->d_name, disk_dir, dev_name); + } + + closedir(dp); + + return ret; +} + +#else + +GuestDiskInfoList *qmp_guest_get_disks(Error **errp) +{ + error_setg(errp, QERR_UNSUPPORTED); + return NULL; +} + +#endif + +/* Return a list of the disk device(s)' info which @mount lies on */ +static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, + Error **errp) +{ + GuestFilesystemInfo *fs =3D g_malloc0(sizeof(*fs)); + struct statvfs buf; + unsigned long used, nonroot_total, fr_size; + char *devpath =3D g_strdup_printf("/sys/dev/block/%u:%u", + mount->devmajor, mount->devminor); + + fs->mountpoint =3D g_strdup(mount->dirname); + fs->type =3D g_strdup(mount->devtype); + build_guest_fsinfo_for_device(devpath, fs, errp); + + if (statvfs(fs->mountpoint, &buf) =3D=3D 0) { + fr_size =3D buf.f_frsize; + used =3D buf.f_blocks - buf.f_bfree; + nonroot_total =3D used + buf.f_bavail; + fs->used_bytes =3D used * fr_size; + fs->total_bytes =3D nonroot_total * fr_size; + fs->total_bytes_privileged =3D buf.f_blocks * fr_size; + + fs->has_total_bytes =3D true; + fs->has_total_bytes_privileged =3D true; + fs->has_used_bytes =3D true; + } + + g_free(devpath); + + return fs; +} + +GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) +{ + FsMountList mounts; + struct FsMount *mount; + GuestFilesystemInfoList *ret =3D NULL; + Error *local_err =3D NULL; + + QTAILQ_INIT(&mounts); + if (!build_fs_mount_list(&mounts, &local_err)) { + error_propagate(errp, local_err); + return NULL; + } + + QTAILQ_FOREACH(mount, &mounts, next) { + g_debug("Building guest fsinfo for '%s'", mount->dirname); + + QAPI_LIST_PREPEND(ret, build_guest_fsinfo(mount, &local_err)); + if (local_err) { + error_propagate(errp, local_err); + qapi_free_GuestFilesystemInfoList(ret); + ret =3D NULL; + break; + } + } + + free_fs_mount_list(&mounts); + return ret; +} +#endif /* CONFIG_FSFREEZE */ + +#if defined(CONFIG_FSTRIM) +/* + * Walk list of mounted file systems in the guest, and trim them. + */ +GuestFilesystemTrimResponse * +qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) +{ + GuestFilesystemTrimResponse *response; + GuestFilesystemTrimResult *result; + int ret =3D 0; + FsMountList mounts; + struct FsMount *mount; + int fd; + struct fstrim_range r; + + slog("guest-fstrim called"); + + QTAILQ_INIT(&mounts); + if (!build_fs_mount_list(&mounts, errp)) { + return NULL; + } + + response =3D g_malloc0(sizeof(*response)); + + QTAILQ_FOREACH(mount, &mounts, next) { + result =3D g_malloc0(sizeof(*result)); + result->path =3D g_strdup(mount->dirname); + + QAPI_LIST_PREPEND(response->paths, result); + + fd =3D qga_open_cloexec(mount->dirname, O_RDONLY, 0); + if (fd =3D=3D -1) { + result->error =3D g_strdup_printf("failed to open: %s", + strerror(errno)); + continue; + } + + /* We try to cull filesystems we know won't work in advance, but o= ther + * filesystems may not implement fstrim for less obvious reasons. + * These will report EOPNOTSUPP; while in some other cases ENOTTY + * will be reported (e.g. CD-ROMs). + * Any other error means an unexpected error. + */ + r.start =3D 0; + r.len =3D -1; + r.minlen =3D has_minimum ? minimum : 0; + ret =3D ioctl(fd, FITRIM, &r); + if (ret =3D=3D -1) { + if (errno =3D=3D ENOTTY || errno =3D=3D EOPNOTSUPP) { + result->error =3D g_strdup("trim not supported"); + } else { + result->error =3D g_strdup_printf("failed to trim: %s", + strerror(errno)); + } + close(fd); + continue; + } + + result->has_minimum =3D true; + result->minimum =3D r.minlen; + result->has_trimmed =3D true; + result->trimmed =3D r.len; + close(fd); + } + + free_fs_mount_list(&mounts); + return response; +} +#endif /* CONFIG_FSTRIM */ =20 #define LINUX_SYS_STATE_FILE "/sys/power/state" #define SUSPEND_SUPPORTED 0 diff --git a/qga/commands-posix.c b/qga/commands-posix.c index ef21da63be..98aafc45f3 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -24,23 +24,12 @@ #include "qemu/base64.h" #include "qemu/cutils.h" #include "commands-common.h" -#include "block/nvme.h" #include "cutils.h" =20 #ifdef HAVE_UTMPX #include #endif =20 -#if defined(__linux__) -#include -#include -#include - -#ifdef CONFIG_LIBUDEV -#include -#endif -#endif - #ifdef HAVE_GETIFADDRS #include #include @@ -842,904 +831,6 @@ static void guest_fsfreeze_cleanup(void) } #endif =20 -/* linux-specific implementations. avoid this if at all possible. */ -#if defined(__linux__) -#if defined(CONFIG_FSFREEZE) - -static char *get_pci_driver(char const *syspath, int pathlen, Error **errp) -{ - char *path; - char *dpath; - char *driver =3D NULL; - char buf[PATH_MAX]; - ssize_t len; - - path =3D g_strndup(syspath, pathlen); - dpath =3D g_strdup_printf("%s/driver", path); - len =3D readlink(dpath, buf, sizeof(buf) - 1); - if (len !=3D -1) { - buf[len] =3D 0; - driver =3D g_path_get_basename(buf); - } - g_free(dpath); - g_free(path); - return driver; -} - -static int compare_uint(const void *_a, const void *_b) -{ - unsigned int a =3D *(unsigned int *)_a; - unsigned int b =3D *(unsigned int *)_b; - - return a < b ? -1 : a > b ? 1 : 0; -} - -/* Walk the specified sysfs and build a sorted list of host or ata numbers= */ -static int build_hosts(char const *syspath, char const *host, bool ata, - unsigned int *hosts, int hosts_max, Error **errp) -{ - char *path; - DIR *dir; - struct dirent *entry; - int i =3D 0; - - path =3D g_strndup(syspath, host - syspath); - dir =3D opendir(path); - if (!dir) { - error_setg_errno(errp, errno, "opendir(\"%s\")", path); - g_free(path); - return -1; - } - - while (i < hosts_max) { - entry =3D readdir(dir); - if (!entry) { - break; - } - if (ata && sscanf(entry->d_name, "ata%d", hosts + i) =3D=3D 1) { - ++i; - } else if (!ata && sscanf(entry->d_name, "host%d", hosts + i) =3D= =3D 1) { - ++i; - } - } - - qsort(hosts, i, sizeof(hosts[0]), compare_uint); - - g_free(path); - closedir(dir); - return i; -} - -/* - * Store disk device info for devices on the PCI bus. - * Returns true if information has been stored, or false for failure. - */ -static bool build_guest_fsinfo_for_pci_dev(char const *syspath, - GuestDiskAddress *disk, - Error **errp) -{ - unsigned int pci[4], host, hosts[8], tgt[3]; - int i, nhosts =3D 0, pcilen; - GuestPCIAddress *pciaddr =3D disk->pci_controller; - bool has_ata =3D false, has_host =3D false, has_tgt =3D false; - char *p, *q, *driver =3D NULL; - bool ret =3D false; - - p =3D strstr(syspath, "/devices/pci"); - if (!p || sscanf(p + 12, "%*x:%*x/%x:%x:%x.%x%n", - pci, pci + 1, pci + 2, pci + 3, &pcilen) < 4) { - g_debug("only pci device is supported: sysfs path '%s'", syspath); - return false; - } - - p +=3D 12 + pcilen; - while (true) { - driver =3D get_pci_driver(syspath, p - syspath, errp); - if (driver && (g_str_equal(driver, "ata_piix") || - g_str_equal(driver, "sym53c8xx") || - g_str_equal(driver, "virtio-pci") || - g_str_equal(driver, "ahci") || - g_str_equal(driver, "nvme") || - g_str_equal(driver, "xhci_hcd") || - g_str_equal(driver, "ehci-pci"))) { - break; - } - - g_free(driver); - if (sscanf(p, "/%x:%x:%x.%x%n", - pci, pci + 1, pci + 2, pci + 3, &pcilen) =3D=3D = 4) { - p +=3D pcilen; - continue; - } - - g_debug("unsupported driver or sysfs path '%s'", syspath); - return false; - } - - p =3D strstr(syspath, "/target"); - if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", - tgt, tgt + 1, tgt + 2) =3D=3D 3) { - has_tgt =3D true; - } - - p =3D strstr(syspath, "/ata"); - if (p) { - q =3D p + 4; - has_ata =3D true; - } else { - p =3D strstr(syspath, "/host"); - q =3D p + 5; - } - if (p && sscanf(q, "%u", &host) =3D=3D 1) { - has_host =3D true; - nhosts =3D build_hosts(syspath, p, has_ata, hosts, - ARRAY_SIZE(hosts), errp); - if (nhosts < 0) { - goto cleanup; - } - } - - pciaddr->domain =3D pci[0]; - pciaddr->bus =3D pci[1]; - pciaddr->slot =3D pci[2]; - pciaddr->function =3D pci[3]; - - if (strcmp(driver, "ata_piix") =3D=3D 0) { - /* a host per ide bus, target*:0::0 */ - if (!has_host || !has_tgt) { - g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driv= er); - goto cleanup; - } - for (i =3D 0; i < nhosts; i++) { - if (host =3D=3D hosts[i]) { - disk->bus_type =3D GUEST_DISK_BUS_TYPE_IDE; - disk->bus =3D i; - disk->unit =3D tgt[1]; - break; - } - } - if (i >=3D nhosts) { - g_debug("no host for '%s' (driver '%s')", syspath, driver); - goto cleanup; - } - } else if (strcmp(driver, "sym53c8xx") =3D=3D 0) { - /* scsi(LSI Logic): target*:0::0 */ - if (!has_tgt) { - g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driv= er); - goto cleanup; - } - disk->bus_type =3D GUEST_DISK_BUS_TYPE_SCSI; - disk->unit =3D tgt[1]; - } else if (strcmp(driver, "virtio-pci") =3D=3D 0) { - if (has_tgt) { - /* virtio-scsi: target*:0:0: */ - disk->bus_type =3D GUEST_DISK_BUS_TYPE_SCSI; - disk->unit =3D tgt[2]; - } else { - /* virtio-blk: 1 disk per 1 device */ - disk->bus_type =3D GUEST_DISK_BUS_TYPE_VIRTIO; - } - } else if (strcmp(driver, "ahci") =3D=3D 0) { - /* ahci: 1 host per 1 unit */ - if (!has_host || !has_tgt) { - g_debug("invalid sysfs path '%s' (driver '%s')", syspath, driv= er); - goto cleanup; - } - for (i =3D 0; i < nhosts; i++) { - if (host =3D=3D hosts[i]) { - disk->unit =3D i; - disk->bus_type =3D GUEST_DISK_BUS_TYPE_SATA; - break; - } - } - if (i >=3D nhosts) { - g_debug("no host for '%s' (driver '%s')", syspath, driver); - goto cleanup; - } - } else if (strcmp(driver, "nvme") =3D=3D 0) { - disk->bus_type =3D GUEST_DISK_BUS_TYPE_NVME; - } else if (strcmp(driver, "ehci-pci") =3D=3D 0 || strcmp(driver, "xhci= _hcd") =3D=3D 0) { - disk->bus_type =3D GUEST_DISK_BUS_TYPE_USB; - } else { - g_debug("unknown driver '%s' (sysfs path '%s')", driver, syspath); - goto cleanup; - } - - ret =3D true; - -cleanup: - g_free(driver); - return ret; -} - -/* - * Store disk device info for non-PCI virtio devices (for example s390x - * channel I/O devices). Returns true if information has been stored, or - * false for failure. - */ -static bool build_guest_fsinfo_for_nonpci_virtio(char const *syspath, - GuestDiskAddress *disk, - Error **errp) -{ - unsigned int tgt[3]; - char *p; - - if (!strstr(syspath, "/virtio") || !strstr(syspath, "/block")) { - g_debug("Unsupported virtio device '%s'", syspath); - return false; - } - - p =3D strstr(syspath, "/target"); - if (p && sscanf(p + 7, "%*u:%*u:%*u/%*u:%u:%u:%u", - &tgt[0], &tgt[1], &tgt[2]) =3D=3D 3) { - /* virtio-scsi: target*:0:: */ - disk->bus_type =3D GUEST_DISK_BUS_TYPE_SCSI; - disk->bus =3D tgt[0]; - disk->target =3D tgt[1]; - disk->unit =3D tgt[2]; - } else { - /* virtio-blk: 1 disk per 1 device */ - disk->bus_type =3D GUEST_DISK_BUS_TYPE_VIRTIO; - } - - return true; -} - -/* - * Store disk device info for CCW devices (s390x channel I/O devices). - * Returns true if information has been stored, or false for failure. - */ -static bool build_guest_fsinfo_for_ccw_dev(char const *syspath, - GuestDiskAddress *disk, - Error **errp) -{ - unsigned int cssid, ssid, subchno, devno; - char *p; - - p =3D strstr(syspath, "/devices/css"); - if (!p || sscanf(p + 12, "%*x/%x.%x.%x/%*x.%*x.%x/", - &cssid, &ssid, &subchno, &devno) < 4) { - g_debug("could not parse ccw device sysfs path: %s", syspath); - return false; - } - - disk->ccw_address =3D g_new0(GuestCCWAddress, 1); - disk->ccw_address->cssid =3D cssid; - disk->ccw_address->ssid =3D ssid; - disk->ccw_address->subchno =3D subchno; - disk->ccw_address->devno =3D devno; - - if (strstr(p, "/virtio")) { - build_guest_fsinfo_for_nonpci_virtio(syspath, disk, errp); - } - - return true; -} - -/* Store disk device info specified by @sysfs into @fs */ -static void build_guest_fsinfo_for_real_device(char const *syspath, - GuestFilesystemInfo *fs, - Error **errp) -{ - GuestDiskAddress *disk; - GuestPCIAddress *pciaddr; - bool has_hwinf; -#ifdef CONFIG_LIBUDEV - struct udev *udev =3D NULL; - struct udev_device *udevice =3D NULL; -#endif - - pciaddr =3D g_new0(GuestPCIAddress, 1); - pciaddr->domain =3D -1; /* -1 means field is inv= alid */ - pciaddr->bus =3D -1; - pciaddr->slot =3D -1; - pciaddr->function =3D -1; - - disk =3D g_new0(GuestDiskAddress, 1); - disk->pci_controller =3D pciaddr; - disk->bus_type =3D GUEST_DISK_BUS_TYPE_UNKNOWN; - -#ifdef CONFIG_LIBUDEV - udev =3D udev_new(); - udevice =3D udev_device_new_from_syspath(udev, syspath); - if (udev =3D=3D NULL || udevice =3D=3D NULL) { - g_debug("failed to query udev"); - } else { - const char *devnode, *serial; - devnode =3D udev_device_get_devnode(udevice); - if (devnode !=3D NULL) { - disk->dev =3D g_strdup(devnode); - } - serial =3D udev_device_get_property_value(udevice, "ID_SERIAL"); - if (serial !=3D NULL && *serial !=3D 0) { - disk->serial =3D g_strdup(serial); - } - } - - udev_unref(udev); - udev_device_unref(udevice); -#endif - - if (strstr(syspath, "/devices/pci")) { - has_hwinf =3D build_guest_fsinfo_for_pci_dev(syspath, disk, errp); - } else if (strstr(syspath, "/devices/css")) { - has_hwinf =3D build_guest_fsinfo_for_ccw_dev(syspath, disk, errp); - } else if (strstr(syspath, "/virtio")) { - has_hwinf =3D build_guest_fsinfo_for_nonpci_virtio(syspath, disk, = errp); - } else { - g_debug("Unsupported device type for '%s'", syspath); - has_hwinf =3D false; - } - - if (has_hwinf || disk->dev || disk->serial) { - QAPI_LIST_PREPEND(fs->disk, disk); - } else { - qapi_free_GuestDiskAddress(disk); - } -} - -static void build_guest_fsinfo_for_device(char const *devpath, - GuestFilesystemInfo *fs, - Error **errp); - -/* Store a list of slave devices of virtual volume specified by @syspath i= nto - * @fs */ -static void build_guest_fsinfo_for_virtual_device(char const *syspath, - GuestFilesystemInfo *fs, - Error **errp) -{ - Error *err =3D NULL; - DIR *dir; - char *dirpath; - struct dirent *entry; - - dirpath =3D g_strdup_printf("%s/slaves", syspath); - dir =3D opendir(dirpath); - if (!dir) { - if (errno !=3D ENOENT) { - error_setg_errno(errp, errno, "opendir(\"%s\")", dirpath); - } - g_free(dirpath); - return; - } - - for (;;) { - errno =3D 0; - entry =3D readdir(dir); - if (entry =3D=3D NULL) { - if (errno) { - error_setg_errno(errp, errno, "readdir(\"%s\")", dirpath); - } - break; - } - - if (entry->d_type =3D=3D DT_LNK) { - char *path; - - g_debug(" slave device '%s'", entry->d_name); - path =3D g_strdup_printf("%s/slaves/%s", syspath, entry->d_nam= e); - build_guest_fsinfo_for_device(path, fs, &err); - g_free(path); - - if (err) { - error_propagate(errp, err); - break; - } - } - } - - g_free(dirpath); - closedir(dir); -} - -static bool is_disk_virtual(const char *devpath, Error **errp) -{ - g_autofree char *syspath =3D realpath(devpath, NULL); - - if (!syspath) { - error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); - return false; - } - return strstr(syspath, "/devices/virtual/block/") !=3D NULL; -} - -/* Dispatch to functions for virtual/real device */ -static void build_guest_fsinfo_for_device(char const *devpath, - GuestFilesystemInfo *fs, - Error **errp) -{ - ERRP_GUARD(); - g_autofree char *syspath =3D NULL; - bool is_virtual =3D false; - - syspath =3D realpath(devpath, NULL); - if (!syspath) { - if (errno !=3D ENOENT) { - error_setg_errno(errp, errno, "realpath(\"%s\")", devpath); - return; - } - - /* ENOENT: This devpath may not exist because of container config = */ - if (!fs->name) { - fs->name =3D g_path_get_basename(devpath); - } - return; - } - - if (!fs->name) { - fs->name =3D g_path_get_basename(syspath); - } - - g_debug(" parse sysfs path '%s'", syspath); - is_virtual =3D is_disk_virtual(syspath, errp); - if (*errp !=3D NULL) { - return; - } - if (is_virtual) { - build_guest_fsinfo_for_virtual_device(syspath, fs, errp); - } else { - build_guest_fsinfo_for_real_device(syspath, fs, errp); - } -} - -#ifdef CONFIG_LIBUDEV - -/* - * Wrapper around build_guest_fsinfo_for_device() for getting just - * the disk address. - */ -static GuestDiskAddress *get_disk_address(const char *syspath, Error **err= p) -{ - g_autoptr(GuestFilesystemInfo) fs =3D NULL; - - fs =3D g_new0(GuestFilesystemInfo, 1); - build_guest_fsinfo_for_device(syspath, fs, errp); - if (fs->disk !=3D NULL) { - return g_steal_pointer(&fs->disk->value); - } - return NULL; -} - -static char *get_alias_for_syspath(const char *syspath) -{ - struct udev *udev =3D NULL; - struct udev_device *udevice =3D NULL; - char *ret =3D NULL; - - udev =3D udev_new(); - if (udev =3D=3D NULL) { - g_debug("failed to query udev"); - goto out; - } - udevice =3D udev_device_new_from_syspath(udev, syspath); - if (udevice =3D=3D NULL) { - g_debug("failed to query udev for path: %s", syspath); - goto out; - } else { - const char *alias =3D udev_device_get_property_value( - udevice, "DM_NAME"); - /* - * NULL means there was an error and empty string means there is no - * alias. In case of no alias we return NULL instead of empty stri= ng. - */ - if (alias =3D=3D NULL) { - g_debug("failed to query udev for device alias for: %s", - syspath); - } else if (*alias !=3D 0) { - ret =3D g_strdup(alias); - } - } - -out: - udev_unref(udev); - udev_device_unref(udevice); - return ret; -} - -static char *get_device_for_syspath(const char *syspath) -{ - struct udev *udev =3D NULL; - struct udev_device *udevice =3D NULL; - char *ret =3D NULL; - - udev =3D udev_new(); - if (udev =3D=3D NULL) { - g_debug("failed to query udev"); - goto out; - } - udevice =3D udev_device_new_from_syspath(udev, syspath); - if (udevice =3D=3D NULL) { - g_debug("failed to query udev for path: %s", syspath); - goto out; - } else { - ret =3D g_strdup(udev_device_get_devnode(udevice)); - } - -out: - udev_unref(udev); - udev_device_unref(udevice); - return ret; -} - -static void get_disk_deps(const char *disk_dir, GuestDiskInfo *disk) -{ - g_autofree char *deps_dir =3D NULL; - const gchar *dep; - GDir *dp_deps =3D NULL; - - /* List dependent disks */ - deps_dir =3D g_strdup_printf("%s/slaves", disk_dir); - g_debug(" listing entries in: %s", deps_dir); - dp_deps =3D g_dir_open(deps_dir, 0, NULL); - if (dp_deps =3D=3D NULL) { - g_debug("failed to list entries in %s", deps_dir); - return; - } - disk->has_dependencies =3D true; - while ((dep =3D g_dir_read_name(dp_deps)) !=3D NULL) { - g_autofree char *dep_dir =3D NULL; - char *dev_name; - - /* Add dependent disks */ - dep_dir =3D g_strdup_printf("%s/%s", deps_dir, dep); - dev_name =3D get_device_for_syspath(dep_dir); - if (dev_name !=3D NULL) { - g_debug(" adding dependent device: %s", dev_name); - QAPI_LIST_PREPEND(disk->dependencies, dev_name); - } - } - g_dir_close(dp_deps); -} - -/* - * Detect partitions subdirectory, name is "" or - * "p" - * - * @disk_name -- last component of /sys path (e.g. sda) - * @disk_dir -- sys path of the disk (e.g. /sys/block/sda) - * @disk_dev -- device node of the disk (e.g. /dev/sda) - */ -static GuestDiskInfoList *get_disk_partitions( - GuestDiskInfoList *list, - const char *disk_name, const char *disk_dir, - const char *disk_dev) -{ - GuestDiskInfoList *ret =3D list; - struct dirent *de_disk; - DIR *dp_disk =3D NULL; - size_t len =3D strlen(disk_name); - - dp_disk =3D opendir(disk_dir); - while ((de_disk =3D readdir(dp_disk)) !=3D NULL) { - g_autofree char *partition_dir =3D NULL; - char *dev_name; - GuestDiskInfo *partition; - - if (!(de_disk->d_type & DT_DIR)) { - continue; - } - - if (!(strncmp(disk_name, de_disk->d_name, len) =3D=3D 0 && - ((*(de_disk->d_name + len) =3D=3D 'p' && - isdigit(*(de_disk->d_name + len + 1))) || - isdigit(*(de_disk->d_name + len))))) { - continue; - } - - partition_dir =3D g_strdup_printf("%s/%s", - disk_dir, de_disk->d_name); - dev_name =3D get_device_for_syspath(partition_dir); - if (dev_name =3D=3D NULL) { - g_debug("Failed to get device name for syspath: %s", - disk_dir); - continue; - } - partition =3D g_new0(GuestDiskInfo, 1); - partition->name =3D dev_name; - partition->partition =3D true; - partition->has_dependencies =3D true; - /* Add parent disk as dependent for easier tracking of hierarchy */ - QAPI_LIST_PREPEND(partition->dependencies, g_strdup(disk_dev)); - - QAPI_LIST_PREPEND(ret, partition); - } - closedir(dp_disk); - - return ret; -} - -static void get_nvme_smart(GuestDiskInfo *disk) -{ - int fd; - GuestNVMeSmart *smart; - NvmeSmartLog log =3D {0}; - struct nvme_admin_cmd cmd =3D { - .opcode =3D NVME_ADM_CMD_GET_LOG_PAGE, - .nsid =3D NVME_NSID_BROADCAST, - .addr =3D (uintptr_t)&log, - .data_len =3D sizeof(log), - .cdw10 =3D NVME_LOG_SMART_INFO | (1 << 15) /* RAE bit */ - | (((sizeof(log) >> 2) - 1) << 16) - }; - - fd =3D qga_open_cloexec(disk->name, O_RDONLY, 0); - if (fd =3D=3D -1) { - g_debug("Failed to open device: %s: %s", disk->name, g_strerror(er= rno)); - return; - } - - if (ioctl(fd, NVME_IOCTL_ADMIN_CMD, &cmd)) { - g_debug("Failed to get smart: %s: %s", disk->name, g_strerror(errn= o)); - close(fd); - return; - } - - disk->smart =3D g_new0(GuestDiskSmart, 1); - disk->smart->type =3D GUEST_DISK_BUS_TYPE_NVME; - - smart =3D &disk->smart->u.nvme; - smart->critical_warning =3D log.critical_warning; - smart->temperature =3D lduw_le_p(&log.temperature); /* unaligned field= */ - smart->available_spare =3D log.available_spare; - smart->available_spare_threshold =3D log.available_spare_threshold; - smart->percentage_used =3D log.percentage_used; - smart->data_units_read_lo =3D le64_to_cpu(log.data_units_read[0]); - smart->data_units_read_hi =3D le64_to_cpu(log.data_units_read[1]); - smart->data_units_written_lo =3D le64_to_cpu(log.data_units_written[0]= ); - smart->data_units_written_hi =3D le64_to_cpu(log.data_units_written[1]= ); - smart->host_read_commands_lo =3D le64_to_cpu(log.host_read_commands[0]= ); - smart->host_read_commands_hi =3D le64_to_cpu(log.host_read_commands[1]= ); - smart->host_write_commands_lo =3D le64_to_cpu(log.host_write_commands[= 0]); - smart->host_write_commands_hi =3D le64_to_cpu(log.host_write_commands[= 1]); - smart->controller_busy_time_lo =3D le64_to_cpu(log.controller_busy_tim= e[0]); - smart->controller_busy_time_hi =3D le64_to_cpu(log.controller_busy_tim= e[1]); - smart->power_cycles_lo =3D le64_to_cpu(log.power_cycles[0]); - smart->power_cycles_hi =3D le64_to_cpu(log.power_cycles[1]); - smart->power_on_hours_lo =3D le64_to_cpu(log.power_on_hours[0]); - smart->power_on_hours_hi =3D le64_to_cpu(log.power_on_hours[1]); - smart->unsafe_shutdowns_lo =3D le64_to_cpu(log.unsafe_shutdowns[0]); - smart->unsafe_shutdowns_hi =3D le64_to_cpu(log.unsafe_shutdowns[1]); - smart->media_errors_lo =3D le64_to_cpu(log.media_errors[0]); - smart->media_errors_hi =3D le64_to_cpu(log.media_errors[1]); - smart->number_of_error_log_entries_lo =3D - le64_to_cpu(log.number_of_error_log_entries[0]); - smart->number_of_error_log_entries_hi =3D - le64_to_cpu(log.number_of_error_log_entries[1]); - - close(fd); -} - -static void get_disk_smart(GuestDiskInfo *disk) -{ - if (disk->address - && (disk->address->bus_type =3D=3D GUEST_DISK_BUS_TYPE_NVME)) { - get_nvme_smart(disk); - } -} - -GuestDiskInfoList *qmp_guest_get_disks(Error **errp) -{ - GuestDiskInfoList *ret =3D NULL; - GuestDiskInfo *disk; - DIR *dp =3D NULL; - struct dirent *de =3D NULL; - - g_debug("listing /sys/block directory"); - dp =3D opendir("/sys/block"); - if (dp =3D=3D NULL) { - error_setg_errno(errp, errno, "Can't open directory \"/sys/block\"= "); - return NULL; - } - while ((de =3D readdir(dp)) !=3D NULL) { - g_autofree char *disk_dir =3D NULL, *line =3D NULL, - *size_path =3D NULL; - char *dev_name; - Error *local_err =3D NULL; - if (de->d_type !=3D DT_LNK) { - g_debug(" skipping entry: %s", de->d_name); - continue; - } - - /* Check size and skip zero-sized disks */ - g_debug(" checking disk size"); - size_path =3D g_strdup_printf("/sys/block/%s/size", de->d_name); - if (!g_file_get_contents(size_path, &line, NULL, NULL)) { - g_debug(" failed to read disk size"); - continue; - } - if (g_strcmp0(line, "0\n") =3D=3D 0) { - g_debug(" skipping zero-sized disk"); - continue; - } - - g_debug(" adding %s", de->d_name); - disk_dir =3D g_strdup_printf("/sys/block/%s", de->d_name); - dev_name =3D get_device_for_syspath(disk_dir); - if (dev_name =3D=3D NULL) { - g_debug("Failed to get device name for syspath: %s", - disk_dir); - continue; - } - disk =3D g_new0(GuestDiskInfo, 1); - disk->name =3D dev_name; - disk->partition =3D false; - disk->alias =3D get_alias_for_syspath(disk_dir); - QAPI_LIST_PREPEND(ret, disk); - - /* Get address for non-virtual devices */ - bool is_virtual =3D is_disk_virtual(disk_dir, &local_err); - if (local_err !=3D NULL) { - g_debug(" failed to check disk path, ignoring error: %s", - error_get_pretty(local_err)); - error_free(local_err); - local_err =3D NULL; - /* Don't try to get the address */ - is_virtual =3D true; - } - if (!is_virtual) { - disk->address =3D get_disk_address(disk_dir, &local_err); - if (local_err !=3D NULL) { - g_debug(" failed to get device info, ignoring error: %s", - error_get_pretty(local_err)); - error_free(local_err); - local_err =3D NULL; - } - } - - get_disk_deps(disk_dir, disk); - get_disk_smart(disk); - ret =3D get_disk_partitions(ret, de->d_name, disk_dir, dev_name); - } - - closedir(dp); - - return ret; -} - -#else - -GuestDiskInfoList *qmp_guest_get_disks(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -#endif - -/* Return a list of the disk device(s)' info which @mount lies on */ -static GuestFilesystemInfo *build_guest_fsinfo(struct FsMount *mount, - Error **errp) -{ - GuestFilesystemInfo *fs =3D g_malloc0(sizeof(*fs)); - struct statvfs buf; - unsigned long used, nonroot_total, fr_size; - char *devpath =3D g_strdup_printf("/sys/dev/block/%u:%u", - mount->devmajor, mount->devminor); - - fs->mountpoint =3D g_strdup(mount->dirname); - fs->type =3D g_strdup(mount->devtype); - build_guest_fsinfo_for_device(devpath, fs, errp); - - if (statvfs(fs->mountpoint, &buf) =3D=3D 0) { - fr_size =3D buf.f_frsize; - used =3D buf.f_blocks - buf.f_bfree; - nonroot_total =3D used + buf.f_bavail; - fs->used_bytes =3D used * fr_size; - fs->total_bytes =3D nonroot_total * fr_size; - fs->total_bytes_privileged =3D buf.f_blocks * fr_size; - - fs->has_total_bytes =3D true; - fs->has_total_bytes_privileged =3D true; - fs->has_used_bytes =3D true; - } - - g_free(devpath); - - return fs; -} - -GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) -{ - FsMountList mounts; - struct FsMount *mount; - GuestFilesystemInfoList *ret =3D NULL; - Error *local_err =3D NULL; - - QTAILQ_INIT(&mounts); - if (!build_fs_mount_list(&mounts, &local_err)) { - error_propagate(errp, local_err); - return NULL; - } - - QTAILQ_FOREACH(mount, &mounts, next) { - g_debug("Building guest fsinfo for '%s'", mount->dirname); - - QAPI_LIST_PREPEND(ret, build_guest_fsinfo(mount, &local_err)); - if (local_err) { - error_propagate(errp, local_err); - qapi_free_GuestFilesystemInfoList(ret); - ret =3D NULL; - break; - } - } - - free_fs_mount_list(&mounts); - return ret; -} -#endif /* CONFIG_FSFREEZE */ - -#if defined(CONFIG_FSTRIM) -/* - * Walk list of mounted file systems in the guest, and trim them. - */ -GuestFilesystemTrimResponse * -qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) -{ - GuestFilesystemTrimResponse *response; - GuestFilesystemTrimResult *result; - int ret =3D 0; - FsMountList mounts; - struct FsMount *mount; - int fd; - struct fstrim_range r; - - slog("guest-fstrim called"); - - QTAILQ_INIT(&mounts); - if (!build_fs_mount_list(&mounts, errp)) { - return NULL; - } - - response =3D g_malloc0(sizeof(*response)); - - QTAILQ_FOREACH(mount, &mounts, next) { - result =3D g_malloc0(sizeof(*result)); - result->path =3D g_strdup(mount->dirname); - - QAPI_LIST_PREPEND(response->paths, result); - - fd =3D qga_open_cloexec(mount->dirname, O_RDONLY, 0); - if (fd =3D=3D -1) { - result->error =3D g_strdup_printf("failed to open: %s", - strerror(errno)); - continue; - } - - /* We try to cull filesystems we know won't work in advance, but o= ther - * filesystems may not implement fstrim for less obvious reasons. - * These will report EOPNOTSUPP; while in some other cases ENOTTY - * will be reported (e.g. CD-ROMs). - * Any other error means an unexpected error. - */ - r.start =3D 0; - r.len =3D -1; - r.minlen =3D has_minimum ? minimum : 0; - ret =3D ioctl(fd, FITRIM, &r); - if (ret =3D=3D -1) { - if (errno =3D=3D ENOTTY || errno =3D=3D EOPNOTSUPP) { - result->error =3D g_strdup("trim not supported"); - } else { - result->error =3D g_strdup_printf("failed to trim: %s", - strerror(errno)); - } - close(fd); - continue; - } - - result->has_minimum =3D true; - result->minimum =3D r.minlen; - result->has_trimmed =3D true; - result->trimmed =3D r.len; - close(fd); - } - - free_fs_mount_list(&mounts); - return response; -} -#endif /* CONFIG_FSTRIM */ - -#endif /* __linux__ */ - #if defined(__linux__) || defined(__FreeBSD__) void qmp_guest_set_user_password(const char *username, const char *password, --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1717509139; cv=none; d=zohomail.com; s=zohoarc; b=Z5CPe0luqE9PIWK3f5F83/T3zSEcKBFc4x3EnyMo1sBlH+AeNT6TJppZ6qBH2qG7RaGyY5y6QrI22avZ37xGFScOgthS+hSuoFRzwTqcFP6dhXl8qRi8xk0KB0Zs/TKGVf4YrepsRvHmrubuGinMLyL51wJWAgasKPP2Y/yZJGQ= ARC-Message-Signature: i=1; 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Tue, 4 Jun 2024 13:49:48 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.39.194.137]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4E893C15C46; Tue, 4 Jun 2024 13:49:46 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717508990; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YF4Tr2vYM9PIGmA0EYLKAkgGXhIMkxzWAPZz1BH/h8o=; b=F8qFjxJZswnevjdkgDpjJSdfohH5I8Awb5SKiaFCA9QlRY0L62NkapZO/nStEL15GPc0rT mt4jYz9tyUttJbQQkKmXxwa+4gufet2ag6froXqDzuL4eFA7uNF/sCGpz/I0JLEESDQn+O sdQuFLJNDjjk5yXCdAL+qSfJ11k//2c= X-MC-Unique: G95gRGRcPJWQimLJPjcZ0A-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 05/20] qga: move linux disk/cpu stats command impls to commands-linux.c Date: Tue, 4 Jun 2024 14:49:18 +0100 Message-ID: <20240604134933.220112-6-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509141470100001 The qmp_guest_{diskstats,cpustats} command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c This also removes a "#ifdef CONFIG_LINUX" that was nested inside a "#ifdef __linux__". Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-linux.c | 195 ++++++++++++++++++++++++++++++++++++++++++ qga/commands-posix.c | 199 ------------------------------------------- 2 files changed, 195 insertions(+), 199 deletions(-) diff --git a/qga/commands-linux.c b/qga/commands-linux.c index 084e6c9e85..c0e8bd4062 100644 --- a/qga/commands-linux.c +++ b/qga/commands-linux.c @@ -1594,3 +1594,198 @@ int64_t qmp_guest_set_vcpus(GuestLogicalProcessorLi= st *vcpus, Error **errp) =20 return processed; } + +#define MAX_NAME_LEN 128 +static GuestDiskStatsInfoList *guest_get_diskstats(Error **errp) +{ + GuestDiskStatsInfoList *head =3D NULL, **tail =3D &head; + const char *diskstats =3D "/proc/diskstats"; + FILE *fp; + size_t n; + char *line =3D NULL; + + fp =3D fopen(diskstats, "r"); + if (fp =3D=3D NULL) { + error_setg_errno(errp, errno, "open(\"%s\")", diskstats); + return NULL; + } + + while (getline(&line, &n, fp) !=3D -1) { + g_autofree GuestDiskStatsInfo *diskstatinfo =3D NULL; + g_autofree GuestDiskStats *diskstat =3D NULL; + char dev_name[MAX_NAME_LEN]; + unsigned int ios_pgr, tot_ticks, rq_ticks, wr_ticks, dc_ticks, fl_= ticks; + unsigned long rd_ios, rd_merges_or_rd_sec, rd_ticks_or_wr_sec, wr_= ios; + unsigned long wr_merges, rd_sec_or_wr_ios, wr_sec; + unsigned long dc_ios, dc_merges, dc_sec, fl_ios; + unsigned int major, minor; + int i; + + i =3D sscanf(line, "%u %u %s %lu %lu %lu" + "%lu %lu %lu %lu %u %u %u %u" + "%lu %lu %lu %u %lu %u", + &major, &minor, dev_name, + &rd_ios, &rd_merges_or_rd_sec, &rd_sec_or_wr_ios, + &rd_ticks_or_wr_sec, &wr_ios, &wr_merges, &wr_sec, + &wr_ticks, &ios_pgr, &tot_ticks, &rq_ticks, + &dc_ios, &dc_merges, &dc_sec, &dc_ticks, + &fl_ios, &fl_ticks); + + if (i < 7) { + continue; + } + + diskstatinfo =3D g_new0(GuestDiskStatsInfo, 1); + diskstatinfo->name =3D g_strdup(dev_name); + diskstatinfo->major =3D major; + diskstatinfo->minor =3D minor; + + diskstat =3D g_new0(GuestDiskStats, 1); + if (i =3D=3D 7) { + diskstat->has_read_ios =3D true; + diskstat->read_ios =3D rd_ios; + diskstat->has_read_sectors =3D true; + diskstat->read_sectors =3D rd_merges_or_rd_sec; + diskstat->has_write_ios =3D true; + diskstat->write_ios =3D rd_sec_or_wr_ios; + diskstat->has_write_sectors =3D true; + diskstat->write_sectors =3D rd_ticks_or_wr_sec; + } + if (i >=3D 14) { + diskstat->has_read_ios =3D true; + diskstat->read_ios =3D rd_ios; + diskstat->has_read_sectors =3D true; + diskstat->read_sectors =3D rd_sec_or_wr_ios; + diskstat->has_read_merges =3D true; + diskstat->read_merges =3D rd_merges_or_rd_sec; + diskstat->has_read_ticks =3D true; + diskstat->read_ticks =3D rd_ticks_or_wr_sec; + diskstat->has_write_ios =3D true; + diskstat->write_ios =3D wr_ios; + diskstat->has_write_sectors =3D true; + diskstat->write_sectors =3D wr_sec; + diskstat->has_write_merges =3D true; + diskstat->write_merges =3D wr_merges; + diskstat->has_write_ticks =3D true; + diskstat->write_ticks =3D wr_ticks; + diskstat->has_ios_pgr =3D true; + diskstat->ios_pgr =3D ios_pgr; + diskstat->has_total_ticks =3D true; + diskstat->total_ticks =3D tot_ticks; + diskstat->has_weight_ticks =3D true; + diskstat->weight_ticks =3D rq_ticks; + } + if (i >=3D 18) { + diskstat->has_discard_ios =3D true; + diskstat->discard_ios =3D dc_ios; + diskstat->has_discard_merges =3D true; + diskstat->discard_merges =3D dc_merges; + diskstat->has_discard_sectors =3D true; + diskstat->discard_sectors =3D dc_sec; + diskstat->has_discard_ticks =3D true; + diskstat->discard_ticks =3D dc_ticks; + } + if (i >=3D 20) { + diskstat->has_flush_ios =3D true; + diskstat->flush_ios =3D fl_ios; + diskstat->has_flush_ticks =3D true; + diskstat->flush_ticks =3D fl_ticks; + } + + diskstatinfo->stats =3D g_steal_pointer(&diskstat); + QAPI_LIST_APPEND(tail, diskstatinfo); + diskstatinfo =3D NULL; + } + free(line); + fclose(fp); + return head; +} + +GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) +{ + return guest_get_diskstats(errp); +} + +GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) +{ + GuestCpuStatsList *head =3D NULL, **tail =3D &head; + const char *cpustats =3D "/proc/stat"; + int clk_tck =3D sysconf(_SC_CLK_TCK); + FILE *fp; + size_t n; + char *line =3D NULL; + + fp =3D fopen(cpustats, "r"); + if (fp =3D=3D NULL) { + error_setg_errno(errp, errno, "open(\"%s\")", cpustats); + return NULL; + } + + while (getline(&line, &n, fp) !=3D -1) { + GuestCpuStats *cpustat =3D NULL; + GuestLinuxCpuStats *linuxcpustat; + int i; + unsigned long user, system, idle, iowait, irq, softirq, steal, gue= st; + unsigned long nice, guest_nice; + char name[64]; + + i =3D sscanf(line, "%s %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu", + name, &user, &nice, &system, &idle, &iowait, &irq, &sof= tirq, + &steal, &guest, &guest_nice); + + /* drop "cpu 1 2 3 ...", get "cpuX 1 2 3 ..." only */ + if ((i =3D=3D EOF) || strncmp(name, "cpu", 3) || (name[3] =3D=3D '= \0')) { + continue; + } + + if (i < 5) { + slog("Parsing cpu stat from %s failed, see \"man proc\"", cpus= tats); + break; + } + + cpustat =3D g_new0(GuestCpuStats, 1); + cpustat->type =3D GUEST_CPU_STATS_TYPE_LINUX; + + linuxcpustat =3D &cpustat->u.q_linux; + linuxcpustat->cpu =3D atoi(&name[3]); + linuxcpustat->user =3D user * 1000 / clk_tck; + linuxcpustat->nice =3D nice * 1000 / clk_tck; + linuxcpustat->system =3D system * 1000 / clk_tck; + linuxcpustat->idle =3D idle * 1000 / clk_tck; + + if (i > 5) { + linuxcpustat->has_iowait =3D true; + linuxcpustat->iowait =3D iowait * 1000 / clk_tck; + } + + if (i > 6) { + linuxcpustat->has_irq =3D true; + linuxcpustat->irq =3D irq * 1000 / clk_tck; + linuxcpustat->has_softirq =3D true; + linuxcpustat->softirq =3D softirq * 1000 / clk_tck; + } + + if (i > 8) { + linuxcpustat->has_steal =3D true; + linuxcpustat->steal =3D steal * 1000 / clk_tck; + } + + if (i > 9) { + linuxcpustat->has_guest =3D true; + linuxcpustat->guest =3D guest * 1000 / clk_tck; + } + + if (i > 10) { + linuxcpustat->has_guest =3D true; + linuxcpustat->guest =3D guest * 1000 / clk_tck; + linuxcpustat->has_guestnice =3D true; + linuxcpustat->guestnice =3D guest_nice * 1000 / clk_tck; + } + + QAPI_LIST_APPEND(tail, cpustat); + } + + free(line); + fclose(fp); + return head; +} diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 98aafc45f3..5da60e65ab 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1195,205 +1195,6 @@ GuestMemoryBlockInfo *qmp_guest_get_memory_block_in= fo(Error **errp) return info; } =20 -#define MAX_NAME_LEN 128 -static GuestDiskStatsInfoList *guest_get_diskstats(Error **errp) -{ -#ifdef CONFIG_LINUX - GuestDiskStatsInfoList *head =3D NULL, **tail =3D &head; - const char *diskstats =3D "/proc/diskstats"; - FILE *fp; - size_t n; - char *line =3D NULL; - - fp =3D fopen(diskstats, "r"); - if (fp =3D=3D NULL) { - error_setg_errno(errp, errno, "open(\"%s\")", diskstats); - return NULL; - } - - while (getline(&line, &n, fp) !=3D -1) { - g_autofree GuestDiskStatsInfo *diskstatinfo =3D NULL; - g_autofree GuestDiskStats *diskstat =3D NULL; - char dev_name[MAX_NAME_LEN]; - unsigned int ios_pgr, tot_ticks, rq_ticks, wr_ticks, dc_ticks, fl_= ticks; - unsigned long rd_ios, rd_merges_or_rd_sec, rd_ticks_or_wr_sec, wr_= ios; - unsigned long wr_merges, rd_sec_or_wr_ios, wr_sec; - unsigned long dc_ios, dc_merges, dc_sec, fl_ios; - unsigned int major, minor; - int i; - - i =3D sscanf(line, "%u %u %s %lu %lu %lu" - "%lu %lu %lu %lu %u %u %u %u" - "%lu %lu %lu %u %lu %u", - &major, &minor, dev_name, - &rd_ios, &rd_merges_or_rd_sec, &rd_sec_or_wr_ios, - &rd_ticks_or_wr_sec, &wr_ios, &wr_merges, &wr_sec, - &wr_ticks, &ios_pgr, &tot_ticks, &rq_ticks, - &dc_ios, &dc_merges, &dc_sec, &dc_ticks, - &fl_ios, &fl_ticks); - - if (i < 7) { - continue; - } - - diskstatinfo =3D g_new0(GuestDiskStatsInfo, 1); - diskstatinfo->name =3D g_strdup(dev_name); - diskstatinfo->major =3D major; - diskstatinfo->minor =3D minor; - - diskstat =3D g_new0(GuestDiskStats, 1); - if (i =3D=3D 7) { - diskstat->has_read_ios =3D true; - diskstat->read_ios =3D rd_ios; - diskstat->has_read_sectors =3D true; - diskstat->read_sectors =3D rd_merges_or_rd_sec; - diskstat->has_write_ios =3D true; - diskstat->write_ios =3D rd_sec_or_wr_ios; - diskstat->has_write_sectors =3D true; - diskstat->write_sectors =3D rd_ticks_or_wr_sec; - } - if (i >=3D 14) { - diskstat->has_read_ios =3D true; - diskstat->read_ios =3D rd_ios; - diskstat->has_read_sectors =3D true; - diskstat->read_sectors =3D rd_sec_or_wr_ios; - diskstat->has_read_merges =3D true; - diskstat->read_merges =3D rd_merges_or_rd_sec; - diskstat->has_read_ticks =3D true; - diskstat->read_ticks =3D rd_ticks_or_wr_sec; - diskstat->has_write_ios =3D true; - diskstat->write_ios =3D wr_ios; - diskstat->has_write_sectors =3D true; - diskstat->write_sectors =3D wr_sec; - diskstat->has_write_merges =3D true; - diskstat->write_merges =3D wr_merges; - diskstat->has_write_ticks =3D true; - diskstat->write_ticks =3D wr_ticks; - diskstat->has_ios_pgr =3D true; - diskstat->ios_pgr =3D ios_pgr; - diskstat->has_total_ticks =3D true; - diskstat->total_ticks =3D tot_ticks; - diskstat->has_weight_ticks =3D true; - diskstat->weight_ticks =3D rq_ticks; - } - if (i >=3D 18) { - diskstat->has_discard_ios =3D true; - diskstat->discard_ios =3D dc_ios; - diskstat->has_discard_merges =3D true; - diskstat->discard_merges =3D dc_merges; - diskstat->has_discard_sectors =3D true; - diskstat->discard_sectors =3D dc_sec; - diskstat->has_discard_ticks =3D true; - diskstat->discard_ticks =3D dc_ticks; - } - if (i >=3D 20) { - diskstat->has_flush_ios =3D true; - diskstat->flush_ios =3D fl_ios; - diskstat->has_flush_ticks =3D true; - diskstat->flush_ticks =3D fl_ticks; - } - - diskstatinfo->stats =3D g_steal_pointer(&diskstat); - QAPI_LIST_APPEND(tail, diskstatinfo); - diskstatinfo =3D NULL; - } - free(line); - fclose(fp); - return head; -#else - g_debug("disk stats reporting available only for Linux"); - return NULL; -#endif -} - -GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) -{ - return guest_get_diskstats(errp); -} - -GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) -{ - GuestCpuStatsList *head =3D NULL, **tail =3D &head; - const char *cpustats =3D "/proc/stat"; - int clk_tck =3D sysconf(_SC_CLK_TCK); - FILE *fp; - size_t n; - char *line =3D NULL; - - fp =3D fopen(cpustats, "r"); - if (fp =3D=3D NULL) { - error_setg_errno(errp, errno, "open(\"%s\")", cpustats); - return NULL; - } - - while (getline(&line, &n, fp) !=3D -1) { - GuestCpuStats *cpustat =3D NULL; - GuestLinuxCpuStats *linuxcpustat; - int i; - unsigned long user, system, idle, iowait, irq, softirq, steal, gue= st; - unsigned long nice, guest_nice; - char name[64]; - - i =3D sscanf(line, "%s %lu %lu %lu %lu %lu %lu %lu %lu %lu %lu", - name, &user, &nice, &system, &idle, &iowait, &irq, &sof= tirq, - &steal, &guest, &guest_nice); - - /* drop "cpu 1 2 3 ...", get "cpuX 1 2 3 ..." only */ - if ((i =3D=3D EOF) || strncmp(name, "cpu", 3) || (name[3] =3D=3D '= \0')) { - continue; - } - - if (i < 5) { - slog("Parsing cpu stat from %s failed, see \"man proc\"", cpus= tats); - break; - } - - cpustat =3D g_new0(GuestCpuStats, 1); - cpustat->type =3D GUEST_CPU_STATS_TYPE_LINUX; - - linuxcpustat =3D &cpustat->u.q_linux; - linuxcpustat->cpu =3D atoi(&name[3]); - linuxcpustat->user =3D user * 1000 / clk_tck; - linuxcpustat->nice =3D nice * 1000 / clk_tck; - linuxcpustat->system =3D system * 1000 / clk_tck; - linuxcpustat->idle =3D idle * 1000 / clk_tck; - - if (i > 5) { - linuxcpustat->has_iowait =3D true; - linuxcpustat->iowait =3D iowait * 1000 / clk_tck; - } - - if (i > 6) { - linuxcpustat->has_irq =3D true; - linuxcpustat->irq =3D irq * 1000 / clk_tck; - linuxcpustat->has_softirq =3D true; - linuxcpustat->softirq =3D softirq * 1000 / clk_tck; - } - - if (i > 8) { - linuxcpustat->has_steal =3D true; - linuxcpustat->steal =3D steal * 1000 / clk_tck; - } - - if (i > 9) { - linuxcpustat->has_guest =3D true; - linuxcpustat->guest =3D guest * 1000 / clk_tck; - } - - if (i > 10) { - linuxcpustat->has_guest =3D true; - linuxcpustat->guest =3D guest * 1000 / clk_tck; - linuxcpustat->has_guestnice =3D true; - linuxcpustat->guestnice =3D guest_nice * 1000 / clk_tck; - } - - QAPI_LIST_APPEND(tail, cpustat); - } - - free(line); - fclose(fp); - return head; -} =20 #else /* defined(__linux__) */ =20 --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1717509143; cv=none; d=zohomail.com; s=zohoarc; b=PiufrBWlJ4ZGUECb9MrAY9RtYc9ySAmzFDQqk0cfu4mf5+wjfcT2V5eT9TWNlpgqFaogHL9tic8ivSLb03lIQRqjwxZNtNQEcGQo1+mI1fEkCJ18jrf9GliRAQV3z44if1NzSEG/nAlg4hg1UemN+VWgrYC8Uw3Gk5PDIdLNE7A= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1717509143; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=/fh6OWzA0tCtf32dsesC220yACnTIpr6dXCwZv5/JP0=; 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bh=/fh6OWzA0tCtf32dsesC220yACnTIpr6dXCwZv5/JP0=; b=LClIj5ll4Ug4O09HcFLbzWQo9F2RJM0EAa9QTmGKEwrJR46UBbEeGBUAc83MSUjuiYD7c5 R/WJKIcc6gVaPuegbYBWqwMUWjxNYiwEIMb8lpCmJzTV2whonUi8AUXXrCcksffHMlqDM2 bTiEOU8+hnpEoLa1C7JANVupX+aKYUc= X-MC-Unique: JoMvGB9KOBOn4OaV2b7_Ag-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 06/20] qga: move linux memory block command impls to commands-linux.c Date: Tue, 4 Jun 2024 14:49:19 +0100 Message-ID: <20240604134933.220112-7-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509143474100005 The qmp_guest_{set,get}_{memory_blocks,block_info} command impls in commands-posix.c are surrounded by '#ifdef __linux__' so should instead live in commands-linux.c This also removes a "#ifdef CONFIG_LINUX" that was nested inside a "#ifdef __linux__". Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-linux.c | 308 ++++++++++++++++++++++++++++++++++++++++++ qga/commands-posix.c | 311 +------------------------------------------ 2 files changed, 309 insertions(+), 310 deletions(-) diff --git a/qga/commands-linux.c b/qga/commands-linux.c index c0e8bd4062..73b13fbaf6 100644 --- a/qga/commands-linux.c +++ b/qga/commands-linux.c @@ -1595,6 +1595,314 @@ int64_t qmp_guest_set_vcpus(GuestLogicalProcessorLi= st *vcpus, Error **errp) return processed; } =20 + +static void ga_read_sysfs_file(int dirfd, const char *pathname, char *buf, + int size, Error **errp) +{ + int fd; + int res; + + errno =3D 0; + fd =3D openat(dirfd, pathname, O_RDONLY); + if (fd =3D=3D -1) { + error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); + return; + } + + res =3D pread(fd, buf, size, 0); + if (res =3D=3D -1) { + error_setg_errno(errp, errno, "pread sysfs file \"%s\"", pathname); + } else if (res =3D=3D 0) { + error_setg(errp, "pread sysfs file \"%s\": unexpected EOF", pathna= me); + } + close(fd); +} + +static void ga_write_sysfs_file(int dirfd, const char *pathname, + const char *buf, int size, Error **errp) +{ + int fd; + + errno =3D 0; + fd =3D openat(dirfd, pathname, O_WRONLY); + if (fd =3D=3D -1) { + error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); + return; + } + + if (pwrite(fd, buf, size, 0) =3D=3D -1) { + error_setg_errno(errp, errno, "pwrite sysfs file \"%s\"", pathname= ); + } + + close(fd); +} + +/* Transfer online/offline status between @mem_blk and the guest system. + * + * On input either @errp or *@errp must be NULL. + * + * In system-to-@mem_blk direction, the following @mem_blk fields are acce= ssed: + * - R: mem_blk->phys_index + * - W: mem_blk->online + * - W: mem_blk->can_offline + * + * In @mem_blk-to-system direction, the following @mem_blk fields are acce= ssed: + * - R: mem_blk->phys_index + * - R: mem_blk->online + *- R: mem_blk->can_offline + * Written members remain unmodified on error. + */ +static void transfer_memory_block(GuestMemoryBlock *mem_blk, bool sys2memb= lk, + GuestMemoryBlockResponse *result, + Error **errp) +{ + char *dirpath; + int dirfd; + char *status; + Error *local_err =3D NULL; + + if (!sys2memblk) { + DIR *dp; + + if (!result) { + error_setg(errp, "Internal error, 'result' should not be NULL"= ); + return; + } + errno =3D 0; + dp =3D opendir("/sys/devices/system/memory/"); + /* if there is no 'memory' directory in sysfs, + * we think this VM does not support online/offline memory block, + * any other solution? + */ + if (!dp) { + if (errno =3D=3D ENOENT) { + result->response =3D + GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORT= ED; + } + goto out1; + } + closedir(dp); + } + + dirpath =3D g_strdup_printf("/sys/devices/system/memory/memory%" PRId6= 4 "/", + mem_blk->phys_index); + dirfd =3D open(dirpath, O_RDONLY | O_DIRECTORY); + if (dirfd =3D=3D -1) { + if (sys2memblk) { + error_setg_errno(errp, errno, "open(\"%s\")", dirpath); + } else { + if (errno =3D=3D ENOENT) { + result->response =3D GUEST_MEMORY_BLOCK_RESPONSE_TYPE_NOT_= FOUND; + } else { + result->response =3D + GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; + } + } + g_free(dirpath); + goto out1; + } + g_free(dirpath); + + status =3D g_malloc0(10); + ga_read_sysfs_file(dirfd, "state", status, 10, &local_err); + if (local_err) { + /* treat with sysfs file that not exist in old kernel */ + if (errno =3D=3D ENOENT) { + error_free(local_err); + if (sys2memblk) { + mem_blk->online =3D true; + mem_blk->can_offline =3D false; + } else if (!mem_blk->online) { + result->response =3D + GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORT= ED; + } + } else { + if (sys2memblk) { + error_propagate(errp, local_err); + } else { + error_free(local_err); + result->response =3D + GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; + } + } + goto out2; + } + + if (sys2memblk) { + char removable =3D '0'; + + mem_blk->online =3D (strncmp(status, "online", 6) =3D=3D 0); + + ga_read_sysfs_file(dirfd, "removable", &removable, 1, &local_err); + if (local_err) { + /* if no 'removable' file, it doesn't support offline mem blk = */ + if (errno =3D=3D ENOENT) { + error_free(local_err); + mem_blk->can_offline =3D false; + } else { + error_propagate(errp, local_err); + } + } else { + mem_blk->can_offline =3D (removable !=3D '0'); + } + } else { + if (mem_blk->online !=3D (strncmp(status, "online", 6) =3D=3D 0)) { + const char *new_state =3D mem_blk->online ? "online" : "offlin= e"; + + ga_write_sysfs_file(dirfd, "state", new_state, strlen(new_stat= e), + &local_err); + if (local_err) { + error_free(local_err); + result->response =3D + GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; + goto out2; + } + + result->response =3D GUEST_MEMORY_BLOCK_RESPONSE_TYPE_SUCCESS; + result->has_error_code =3D false; + } /* otherwise pretend successful re-(on|off)-lining */ + } + g_free(status); + close(dirfd); + return; + +out2: + g_free(status); + close(dirfd); +out1: + if (!sys2memblk) { + result->has_error_code =3D true; + result->error_code =3D errno; + } +} + +GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) +{ + GuestMemoryBlockList *head, **tail; + Error *local_err =3D NULL; + struct dirent *de; + DIR *dp; + + head =3D NULL; + tail =3D &head; + + dp =3D opendir("/sys/devices/system/memory/"); + if (!dp) { + /* it's ok if this happens to be a system that doesn't expose + * memory blocks via sysfs, but otherwise we should report + * an error + */ + if (errno !=3D ENOENT) { + error_setg_errno(errp, errno, "Can't open directory" + "\"/sys/devices/system/memory/\""); + } + return NULL; + } + + /* Note: the phys_index of memory block may be discontinuous, + * this is because a memblk is the unit of the Sparse Memory design, w= hich + * allows discontinuous memory ranges (ex. NUMA), so here we should + * traverse the memory block directory. + */ + while ((de =3D readdir(dp)) !=3D NULL) { + GuestMemoryBlock *mem_blk; + + if ((strncmp(de->d_name, "memory", 6) !=3D 0) || + !(de->d_type & DT_DIR)) { + continue; + } + + mem_blk =3D g_malloc0(sizeof *mem_blk); + /* The d_name is "memoryXXX", phys_index is block id, same as XXX= */ + mem_blk->phys_index =3D strtoul(&de->d_name[6], NULL, 10); + mem_blk->has_can_offline =3D true; /* lolspeak ftw */ + transfer_memory_block(mem_blk, true, NULL, &local_err); + if (local_err) { + break; + } + + QAPI_LIST_APPEND(tail, mem_blk); + } + + closedir(dp); + if (local_err =3D=3D NULL) { + /* there's no guest with zero memory blocks */ + if (head =3D=3D NULL) { + error_setg(errp, "guest reported zero memory blocks!"); + } + return head; + } + + qapi_free_GuestMemoryBlockList(head); + error_propagate(errp, local_err); + return NULL; +} + +GuestMemoryBlockResponseList * +qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) +{ + GuestMemoryBlockResponseList *head, **tail; + Error *local_err =3D NULL; + + head =3D NULL; + tail =3D &head; + + while (mem_blks !=3D NULL) { + GuestMemoryBlockResponse *result; + GuestMemoryBlock *current_mem_blk =3D mem_blks->value; + + result =3D g_malloc0(sizeof(*result)); + result->phys_index =3D current_mem_blk->phys_index; + transfer_memory_block(current_mem_blk, false, result, &local_err); + if (local_err) { /* should never happen */ + goto err; + } + + QAPI_LIST_APPEND(tail, result); + mem_blks =3D mem_blks->next; + } + + return head; +err: + qapi_free_GuestMemoryBlockResponseList(head); + error_propagate(errp, local_err); + return NULL; +} + +GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) +{ + Error *local_err =3D NULL; + char *dirpath; + int dirfd; + char *buf; + GuestMemoryBlockInfo *info; + + dirpath =3D g_strdup_printf("/sys/devices/system/memory/"); + dirfd =3D open(dirpath, O_RDONLY | O_DIRECTORY); + if (dirfd =3D=3D -1) { + error_setg_errno(errp, errno, "open(\"%s\")", dirpath); + g_free(dirpath); + return NULL; + } + g_free(dirpath); + + buf =3D g_malloc0(20); + ga_read_sysfs_file(dirfd, "block_size_bytes", buf, 20, &local_err); + close(dirfd); + if (local_err) { + g_free(buf); + error_propagate(errp, local_err); + return NULL; + } + + info =3D g_new0(GuestMemoryBlockInfo, 1); + info->size =3D strtol(buf, NULL, 16); /* the unit is bytes */ + + g_free(buf); + + return info; +} + #define MAX_NAME_LEN 128 static GuestDiskStatsInfoList *guest_get_diskstats(Error **errp) { diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 5da60e65ab..2a3bef7445 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -887,316 +887,7 @@ void qmp_guest_set_user_password(const char *username, } #endif /* __linux__ || __FreeBSD__ */ =20 -#ifdef __linux__ -static void ga_read_sysfs_file(int dirfd, const char *pathname, char *buf, - int size, Error **errp) -{ - int fd; - int res; - - errno =3D 0; - fd =3D openat(dirfd, pathname, O_RDONLY); - if (fd =3D=3D -1) { - error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); - return; - } - - res =3D pread(fd, buf, size, 0); - if (res =3D=3D -1) { - error_setg_errno(errp, errno, "pread sysfs file \"%s\"", pathname); - } else if (res =3D=3D 0) { - error_setg(errp, "pread sysfs file \"%s\": unexpected EOF", pathna= me); - } - close(fd); -} - -static void ga_write_sysfs_file(int dirfd, const char *pathname, - const char *buf, int size, Error **errp) -{ - int fd; - - errno =3D 0; - fd =3D openat(dirfd, pathname, O_WRONLY); - if (fd =3D=3D -1) { - error_setg_errno(errp, errno, "open sysfs file \"%s\"", pathname); - return; - } - - if (pwrite(fd, buf, size, 0) =3D=3D -1) { - error_setg_errno(errp, errno, "pwrite sysfs file \"%s\"", pathname= ); - } - - close(fd); -} - -/* Transfer online/offline status between @mem_blk and the guest system. - * - * On input either @errp or *@errp must be NULL. - * - * In system-to-@mem_blk direction, the following @mem_blk fields are acce= ssed: - * - R: mem_blk->phys_index - * - W: mem_blk->online - * - W: mem_blk->can_offline - * - * In @mem_blk-to-system direction, the following @mem_blk fields are acce= ssed: - * - R: mem_blk->phys_index - * - R: mem_blk->online - *- R: mem_blk->can_offline - * Written members remain unmodified on error. - */ -static void transfer_memory_block(GuestMemoryBlock *mem_blk, bool sys2memb= lk, - GuestMemoryBlockResponse *result, - Error **errp) -{ - char *dirpath; - int dirfd; - char *status; - Error *local_err =3D NULL; - - if (!sys2memblk) { - DIR *dp; - - if (!result) { - error_setg(errp, "Internal error, 'result' should not be NULL"= ); - return; - } - errno =3D 0; - dp =3D opendir("/sys/devices/system/memory/"); - /* if there is no 'memory' directory in sysfs, - * we think this VM does not support online/offline memory block, - * any other solution? - */ - if (!dp) { - if (errno =3D=3D ENOENT) { - result->response =3D - GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORT= ED; - } - goto out1; - } - closedir(dp); - } - - dirpath =3D g_strdup_printf("/sys/devices/system/memory/memory%" PRId6= 4 "/", - mem_blk->phys_index); - dirfd =3D open(dirpath, O_RDONLY | O_DIRECTORY); - if (dirfd =3D=3D -1) { - if (sys2memblk) { - error_setg_errno(errp, errno, "open(\"%s\")", dirpath); - } else { - if (errno =3D=3D ENOENT) { - result->response =3D GUEST_MEMORY_BLOCK_RESPONSE_TYPE_NOT_= FOUND; - } else { - result->response =3D - GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; - } - } - g_free(dirpath); - goto out1; - } - g_free(dirpath); - - status =3D g_malloc0(10); - ga_read_sysfs_file(dirfd, "state", status, 10, &local_err); - if (local_err) { - /* treat with sysfs file that not exist in old kernel */ - if (errno =3D=3D ENOENT) { - error_free(local_err); - if (sys2memblk) { - mem_blk->online =3D true; - mem_blk->can_offline =3D false; - } else if (!mem_blk->online) { - result->response =3D - GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_NOT_SUPPORT= ED; - } - } else { - if (sys2memblk) { - error_propagate(errp, local_err); - } else { - error_free(local_err); - result->response =3D - GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; - } - } - goto out2; - } - - if (sys2memblk) { - char removable =3D '0'; - - mem_blk->online =3D (strncmp(status, "online", 6) =3D=3D 0); - - ga_read_sysfs_file(dirfd, "removable", &removable, 1, &local_err); - if (local_err) { - /* if no 'removable' file, it doesn't support offline mem blk = */ - if (errno =3D=3D ENOENT) { - error_free(local_err); - mem_blk->can_offline =3D false; - } else { - error_propagate(errp, local_err); - } - } else { - mem_blk->can_offline =3D (removable !=3D '0'); - } - } else { - if (mem_blk->online !=3D (strncmp(status, "online", 6) =3D=3D 0)) { - const char *new_state =3D mem_blk->online ? "online" : "offlin= e"; - - ga_write_sysfs_file(dirfd, "state", new_state, strlen(new_stat= e), - &local_err); - if (local_err) { - error_free(local_err); - result->response =3D - GUEST_MEMORY_BLOCK_RESPONSE_TYPE_OPERATION_FAILED; - goto out2; - } - - result->response =3D GUEST_MEMORY_BLOCK_RESPONSE_TYPE_SUCCESS; - result->has_error_code =3D false; - } /* otherwise pretend successful re-(on|off)-lining */ - } - g_free(status); - close(dirfd); - return; - -out2: - g_free(status); - close(dirfd); -out1: - if (!sys2memblk) { - result->has_error_code =3D true; - result->error_code =3D errno; - } -} - -GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) -{ - GuestMemoryBlockList *head, **tail; - Error *local_err =3D NULL; - struct dirent *de; - DIR *dp; - - head =3D NULL; - tail =3D &head; - - dp =3D opendir("/sys/devices/system/memory/"); - if (!dp) { - /* it's ok if this happens to be a system that doesn't expose - * memory blocks via sysfs, but otherwise we should report - * an error - */ - if (errno !=3D ENOENT) { - error_setg_errno(errp, errno, "Can't open directory" - "\"/sys/devices/system/memory/\""); - } - return NULL; - } - - /* Note: the phys_index of memory block may be discontinuous, - * this is because a memblk is the unit of the Sparse Memory design, w= hich - * allows discontinuous memory ranges (ex. NUMA), so here we should - * traverse the memory block directory. - */ - while ((de =3D readdir(dp)) !=3D NULL) { - GuestMemoryBlock *mem_blk; - - if ((strncmp(de->d_name, "memory", 6) !=3D 0) || - !(de->d_type & DT_DIR)) { - continue; - } - - mem_blk =3D g_malloc0(sizeof *mem_blk); - /* The d_name is "memoryXXX", phys_index is block id, same as XXX= */ - mem_blk->phys_index =3D strtoul(&de->d_name[6], NULL, 10); - mem_blk->has_can_offline =3D true; /* lolspeak ftw */ - transfer_memory_block(mem_blk, true, NULL, &local_err); - if (local_err) { - break; - } - - QAPI_LIST_APPEND(tail, mem_blk); - } - - closedir(dp); - if (local_err =3D=3D NULL) { - /* there's no guest with zero memory blocks */ - if (head =3D=3D NULL) { - error_setg(errp, "guest reported zero memory blocks!"); - } - return head; - } - - qapi_free_GuestMemoryBlockList(head); - error_propagate(errp, local_err); - return NULL; -} - -GuestMemoryBlockResponseList * -qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) -{ - GuestMemoryBlockResponseList *head, **tail; - Error *local_err =3D NULL; - - head =3D NULL; - tail =3D &head; - - while (mem_blks !=3D NULL) { - GuestMemoryBlockResponse *result; - GuestMemoryBlock *current_mem_blk =3D mem_blks->value; - - result =3D g_malloc0(sizeof(*result)); - result->phys_index =3D current_mem_blk->phys_index; - transfer_memory_block(current_mem_blk, false, result, &local_err); - if (local_err) { /* should never happen */ - goto err; - } - - QAPI_LIST_APPEND(tail, result); - mem_blks =3D mem_blks->next; - } - - return head; -err: - qapi_free_GuestMemoryBlockResponseList(head); - error_propagate(errp, local_err); - return NULL; -} - -GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) -{ - Error *local_err =3D NULL; - char *dirpath; - int dirfd; - char *buf; - GuestMemoryBlockInfo *info; - - dirpath =3D g_strdup_printf("/sys/devices/system/memory/"); - dirfd =3D open(dirpath, O_RDONLY | O_DIRECTORY); - if (dirfd =3D=3D -1) { - error_setg_errno(errp, errno, "open(\"%s\")", dirpath); - g_free(dirpath); - return NULL; - } - g_free(dirpath); - - buf =3D g_malloc0(20); - ga_read_sysfs_file(dirfd, "block_size_bytes", buf, 20, &local_err); - close(dirfd); - if (local_err) { - g_free(buf); - error_propagate(errp, local_err); - return NULL; - } - - info =3D g_new0(GuestMemoryBlockInfo, 1); - info->size =3D strtol(buf, NULL, 16); /* the unit is bytes */ - - g_free(buf); - - return info; -} - - -#else /* defined(__linux__) */ +#ifndef __linux__ =20 void qmp_guest_suspend_disk(Error **errp) { --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1717509010; cv=none; d=zohomail.com; s=zohoarc; b=ZYblJEanAI/t//VVw7ZlQC9CsV625Ct6vZZkGsewMUnji/RN2iv2JZk+dPDd4Mjmoxj5eNCy+Co6AKfoYZzrhVZcRxkgAj8ZAqnKfXvNAKvIYnj1J/JyHp/1TQw8ew8KXb60FheLb0JMuJ8lvepcjfH+lvY1X5CEXOkhQC3VEtk= ARC-Message-Signature: i=1; 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Tue, 4 Jun 2024 13:49:52 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.39.194.137]) by smtp.corp.redhat.com (Postfix) with ESMTP id DF9C6C15C46; Tue, 4 Jun 2024 13:49:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717508996; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=VTs1CazDuYQYyqNg17yZkKnnH71hmdmUVDNxDCO95G8=; b=Jok0UYgwWMXc4YZaJ6KqH/6+ggs7IISSO6E29amsx139wtBNrS72fhw3g68QErAETCqizs EjgAEIiAJDyX01OAPAlkzM8lcXXu3elD8NGkt/9C98VbFoMoyV5oij5xHtmhQxWyyD31pg XbP+reCbmWvKOXYASuPZ5RJtDwPaSgY= X-MC-Unique: xtDvPf1jOh2icgWwWTMlXQ-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 07/20] qga: move CONFIG_FSFREEZE/TRIM to be meson defined options Date: Tue, 4 Jun 2024 14:49:20 +0100 Message-ID: <20240604134933.220112-8-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; 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Signed-off-by: Daniel P. Berrang=C3=A9 --- meson.build | 18 ++++++++++++++++++ qga/commands-common.h | 9 --------- 2 files changed, 18 insertions(+), 9 deletions(-) diff --git a/meson.build b/meson.build index 6386607144..356b2a4817 100644 --- a/meson.build +++ b/meson.build @@ -2141,6 +2141,22 @@ have_virtfs_proxy_helper =3D get_option('virtfs_prox= y_helper') \ .require(libcap_ng.found(), error_message: 'the virtfs proxy helper re= quires libcap-ng') \ .allowed() =20 +qga_fsfreeze =3D false +qga_fstrim =3D false +if host_os =3D=3D 'windows' + qga_fsfreeze =3D true + qga_fstrim =3D true +elif host_os =3D=3D 'linux' + if cc.has_header_symbol('linux/fs.h', 'FIFREEZE') + qga_fsfreeze =3D true + endif + if cc.has_header_symbol('linux/fs.h', 'FITRIM') + qga_fstrim =3D true + endif +elif host_os =3D=3D 'freebsd' and cc.has_header_symbol('ufs/ffs/fs.h', 'UF= SSUSPEND') + qga_fsfreeze =3D true +endif + if get_option('block_drv_ro_whitelist') =3D=3D '' config_host_data.set('CONFIG_BDRV_RO_WHITELIST', '') else @@ -2375,6 +2391,8 @@ config_host_data.set('CONFIG_DEBUG_TCG', get_option('= debug_tcg')) config_host_data.set('CONFIG_DEBUG_REMAP', get_option('debug_remap')) config_host_data.set('CONFIG_QOM_CAST_DEBUG', get_option('qom_cast_debug')) config_host_data.set('CONFIG_REPLICATION', get_option('replication').allow= ed()) +config_host_data.set('CONFIG_FSFREEZE', qga_fsfreeze) +config_host_data.set('CONFIG_FSTRIM', qga_fstrim) =20 # has_header config_host_data.set('CONFIG_EPOLL', cc.has_header('sys/epoll.h')) diff --git a/qga/commands-common.h b/qga/commands-common.h index 8c1c56aac9..263e7c0525 100644 --- a/qga/commands-common.h +++ b/qga/commands-common.h @@ -15,19 +15,10 @@ =20 #if defined(__linux__) #include -#ifdef FIFREEZE -#define CONFIG_FSFREEZE -#endif -#ifdef FITRIM -#define CONFIG_FSTRIM -#endif #endif /* __linux__ */ =20 #ifdef __FreeBSD__ #include -#ifdef UFSSUSPEND -#define CONFIG_FSFREEZE -#endif #endif /* __FreeBSD__ */ =20 #if defined(CONFIG_FSFREEZE) || defined(CONFIG_FSTRIM) --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=F7NWPJ5tSLT3jMnEYRzuJWc85IGXbTO8E5f2b8b0qV4=; b=Xgf+wMg0auHsIqQETYTIOzTM5oh8Fv0W9zmFaAwZa/dOfcG71G16og/38FlgrEOLCrr3XZ sKyCi3q/cc14j+VnY1+fGmyPla5QnFbxnYnQobNRFYk6S5Au0tWHVqdaB85X1JyQrEQY/S jRrFoHojd7y2tiMB/QbPSWx8Mqex7GU= X-MC-Unique: 1hGTl76cOoiBiXUO0Ut_QA-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 08/20] qga: conditionalize schema for commands unsupported on Windows Date: Tue, 4 Jun 2024 14:49:21 +0100 Message-ID: <20240604134933.220112-9-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509145492100009 Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the commands on Windows. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This fixes inconsistency where some commands are implemented as stubs, yet not added to the blockedrpc list. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-win32.c | 56 +------------------------------------------- qga/qapi-schema.json | 45 +++++++++++++++++++++++------------ 2 files changed, 31 insertions(+), 70 deletions(-) diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 9fe670d5b4..2533e4c748 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -1494,11 +1494,6 @@ out: } } =20 -void qmp_guest_suspend_hybrid(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); -} - static IP_ADAPTER_ADDRESSES *guest_get_adapters_addresses(Error **errp) { IP_ADAPTER_ADDRESSES *adptr_addrs =3D NULL; @@ -1862,12 +1857,6 @@ GuestLogicalProcessorList *qmp_guest_get_vcpus(Error= **errp) return NULL; } =20 -int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return -1; -} - static gchar * get_net_error_message(gint error) { @@ -1969,46 +1958,15 @@ done: g_free(rawpasswddata); } =20 -GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestMemoryBlockResponseList * -qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - /* add unsupported commands to the list of blocked RPCs */ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) { - const char *list_unsupported[] =3D { - "guest-suspend-hybrid", - "guest-set-vcpus", - "guest-get-memory-blocks", "guest-set-memory-blocks", - "guest-get-memory-block-info", - NULL}; - char **p =3D (char **)list_unsupported; - - while (*p) { - blockedrpcs =3D g_list_append(blockedrpcs, g_strdup(*p++)); - } - if (!vss_init(true)) { g_debug("vss_init failed, vss commands are going to be disabled"); const char *list[] =3D { "guest-get-fsinfo", "guest-fsfreeze-status", "guest-fsfreeze-freeze", "guest-fsfreeze-thaw", NULL}; - p =3D (char **)list; + char **p =3D (char **)list; =20 while (*p) { blockedrpcs =3D g_list_append(blockedrpcs, g_strdup(*p++)); @@ -2505,15 +2463,3 @@ char *qga_get_host_name(Error **errp) =20 return g_utf16_to_utf8(tmp, size, NULL, NULL, NULL); } - -GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index b3de1fb6b3..b91456e9ad 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -636,7 +636,8 @@ # # Since: 1.1 ## -{ 'command': 'guest-suspend-hybrid', 'success-response': false } +{ 'command': 'guest-suspend-hybrid', 'success-response': false, + 'if': 'CONFIG_POSIX' } =20 ## # @GuestIpAddressType: @@ -806,7 +807,8 @@ ## { 'command': 'guest-set-vcpus', 'data': {'vcpus': ['GuestLogicalProcessor'] }, - 'returns': 'int' } + 'returns': 'int', + 'if': 'CONFIG_POSIX' } =20 ## # @GuestDiskBusType: @@ -1099,7 +1101,8 @@ { 'struct': 'GuestMemoryBlock', 'data': {'phys-index': 'uint64', 'online': 'bool', - '*can-offline': 'bool'} } + '*can-offline': 'bool'}, + 'if': 'CONFIG_POSIX' } =20 ## # @guest-get-memory-blocks: @@ -1115,7 +1118,8 @@ # Since: 2.3 ## { 'command': 'guest-get-memory-blocks', - 'returns': ['GuestMemoryBlock'] } + 'returns': ['GuestMemoryBlock'], + 'if': 'CONFIG_POSIX' } =20 ## # @GuestMemoryBlockResponseType: @@ -1138,7 +1142,8 @@ ## { 'enum': 'GuestMemoryBlockResponseType', 'data': ['success', 'not-found', 'operation-not-supported', - 'operation-failed'] } + 'operation-failed'], + 'if': 'CONFIG_POSIX' } =20 ## # @GuestMemoryBlockResponse: @@ -1156,7 +1161,8 @@ { 'struct': 'GuestMemoryBlockResponse', 'data': { 'phys-index': 'uint64', 'response': 'GuestMemoryBlockResponseType', - '*error-code': 'int' }} + '*error-code': 'int' }, + 'if': 'CONFIG_POSIX'} =20 ## # @guest-set-memory-blocks: @@ -1187,7 +1193,8 @@ ## { 'command': 'guest-set-memory-blocks', 'data': {'mem-blks': ['GuestMemoryBlock'] }, - 'returns': ['GuestMemoryBlockResponse'] } + 'returns': ['GuestMemoryBlockResponse'], + 'if': 'CONFIG_POSIX' } =20 ## # @GuestMemoryBlockInfo: @@ -1199,7 +1206,8 @@ # Since: 2.3 ## { 'struct': 'GuestMemoryBlockInfo', - 'data': {'size': 'uint64'} } + 'data': {'size': 'uint64'}, + 'if': 'CONFIG_POSIX' } =20 ## # @guest-get-memory-block-info: @@ -1211,7 +1219,8 @@ # Since: 2.3 ## { 'command': 'guest-get-memory-block-info', - 'returns': 'GuestMemoryBlockInfo' } + 'returns': 'GuestMemoryBlockInfo', + 'if': 'CONFIG_POSIX' } =20 ## # @GuestExecStatus: @@ -1702,7 +1711,8 @@ 'data': {'name': 'str', 'major': 'uint64', 'minor': 'uint64', - 'stats': 'GuestDiskStats' } } + 'stats': 'GuestDiskStats' }, + 'if': 'CONFIG_POSIX' } =20 ## # @guest-get-diskstats: @@ -1714,7 +1724,8 @@ # Since: 7.1 ## { 'command': 'guest-get-diskstats', - 'returns': ['GuestDiskStatsInfo'] + 'returns': ['GuestDiskStatsInfo'], + 'if': 'CONFIG_POSIX' } =20 ## @@ -1727,7 +1738,8 @@ # Since: 7.1 ## { 'enum': 'GuestCpuStatsType', - 'data': [ 'linux' ] } + 'data': [ 'linux' ], + 'if': 'CONFIG_POSIX' } =20 =20 ## @@ -1772,7 +1784,8 @@ '*steal': 'uint64', '*guest': 'uint64', '*guestnice': 'uint64' - } } + }, + 'if': 'CONFIG_POSIX' } =20 ## # @GuestCpuStats: @@ -1786,7 +1799,8 @@ { 'union': 'GuestCpuStats', 'base': { 'type': 'GuestCpuStatsType' }, 'discriminator': 'type', - 'data': { 'linux': 'GuestLinuxCpuStats' } } + 'data': { 'linux': 'GuestLinuxCpuStats' }, + 'if': 'CONFIG_POSIX' } =20 ## # @guest-get-cpustats: @@ -1798,5 +1812,6 @@ # Since: 7.1 ## { 'command': 'guest-get-cpustats', - 'returns': ['GuestCpuStats'] + 'returns': ['GuestCpuStats'], + 'if': 'CONFIG_POSIX' } --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=qQJcnKPUyW6FZOX5t7p6G35KmTlb5MiOXsjhqioJHpU=; b=awThm78RKa9MwUQOiz4Qmr6GizMDIKzNnvvUV/di2tC0yGQD2WtTVNQLGdCLCPzk9xIvIW ghvaj8rrgbar73JuoqrOAkzjIdoxh8GgGK4eUkxv6CN4O0Y+yxjPWAObYedp1PAHx2lVmo DAh/DiPyK+IrLhO4/uS17uqONpAlW+I= X-MC-Unique: --UOkoDdO1Onj3IhtLMYng-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 09/20] qga: conditionalize schema for commands unsupported on non-Linux POSIX Date: Tue, 4 Jun 2024 14:49:22 +0100 Message-ID: <20240604134933.220112-10-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509149518100001 Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the commands on non-Linux POSIX platforms The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-posix.c | 66 -------------------------------------------- qga/qapi-schema.json | 30 +++++++++++--------- 2 files changed, 17 insertions(+), 79 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 2a3bef7445..559d71ffae 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -887,56 +887,6 @@ void qmp_guest_set_user_password(const char *username, } #endif /* __linux__ || __FreeBSD__ */ =20 -#ifndef __linux__ - -void qmp_guest_suspend_disk(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); -} - -void qmp_guest_suspend_ram(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); -} - -void qmp_guest_suspend_hybrid(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); -} - -GuestLogicalProcessorList *qmp_guest_get_vcpus(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -int64_t qmp_guest_set_vcpus(GuestLogicalProcessorList *vcpus, Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return -1; -} - -GuestMemoryBlockList *qmp_guest_get_memory_blocks(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestMemoryBlockResponseList * -qmp_guest_set_memory_blocks(GuestMemoryBlockList *mem_blks, Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestMemoryBlockInfo *qmp_guest_get_memory_block_info(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -#endif - #ifdef HAVE_GETIFADDRS static GuestNetworkInterface * guest_find_interface(GuestNetworkInterfaceList *head, @@ -1272,22 +1222,6 @@ qmp_guest_fstrim(bool has_minimum, int64_t minimum, = Error **errp) /* add unsupported commands to the list of blocked RPCs */ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) { -#if !defined(__linux__) - { - const char *list[] =3D { - "guest-suspend-disk", "guest-suspend-ram", - "guest-suspend-hybrid", "guest-get-vcpus", "guest-set-vcpus", - "guest-get-memory-blocks", "guest-set-memory-blocks", - "guest-get-memory-block-info", - NULL}; - char **p =3D (char **)list; - - while (*p) { - blockedrpcs =3D g_list_append(blockedrpcs, g_strdup(*p++)); - } - } -#endif - #if !defined(HAVE_GETIFADDRS) blockedrpcs =3D g_list_append(blockedrpcs, g_strdup("guest-network-get-interfaces")); diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index b91456e9ad..d164c30ec3 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -565,7 +565,8 @@ # # Since: 1.1 ## -{ 'command': 'guest-suspend-disk', 'success-response': false } +{ 'command': 'guest-suspend-disk', 'success-response': false, + 'if': { 'any': ['CONFIG_LINUX', 'CONFIG_WIN32'] } } =20 ## # @guest-suspend-ram: @@ -601,7 +602,8 @@ # # Since: 1.1 ## -{ 'command': 'guest-suspend-ram', 'success-response': false } +{ 'command': 'guest-suspend-ram', 'success-response': false, + 'if': { 'any': ['CONFIG_LINUX', 'CONFIG_WIN32'] } } =20 ## # @guest-suspend-hybrid: @@ -637,7 +639,7 @@ # Since: 1.1 ## { 'command': 'guest-suspend-hybrid', 'success-response': false, - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @GuestIpAddressType: @@ -750,7 +752,8 @@ { 'struct': 'GuestLogicalProcessor', 'data': {'logical-id': 'int', 'online': 'bool', - '*can-offline': 'bool'} } + '*can-offline': 'bool'}, + 'if': { 'any': ['CONFIG_LINUX', 'CONFIG_WIN32'] } } =20 ## # @guest-get-vcpus: @@ -765,7 +768,8 @@ # Since: 1.5 ## { 'command': 'guest-get-vcpus', - 'returns': ['GuestLogicalProcessor'] } + 'returns': ['GuestLogicalProcessor'], + 'if': { 'any': ['CONFIG_LINUX', 'CONFIG_WIN32'] } } =20 ## # @guest-set-vcpus: @@ -808,7 +812,7 @@ { 'command': 'guest-set-vcpus', 'data': {'vcpus': ['GuestLogicalProcessor'] }, 'returns': 'int', - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @GuestDiskBusType: @@ -1102,7 +1106,7 @@ 'data': {'phys-index': 'uint64', 'online': 'bool', '*can-offline': 'bool'}, - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @guest-get-memory-blocks: @@ -1119,7 +1123,7 @@ ## { 'command': 'guest-get-memory-blocks', 'returns': ['GuestMemoryBlock'], - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @GuestMemoryBlockResponseType: @@ -1143,7 +1147,7 @@ { 'enum': 'GuestMemoryBlockResponseType', 'data': ['success', 'not-found', 'operation-not-supported', 'operation-failed'], - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @GuestMemoryBlockResponse: @@ -1162,7 +1166,7 @@ 'data': { 'phys-index': 'uint64', 'response': 'GuestMemoryBlockResponseType', '*error-code': 'int' }, - 'if': 'CONFIG_POSIX'} + 'if': 'CONFIG_LINUX'} =20 ## # @guest-set-memory-blocks: @@ -1194,7 +1198,7 @@ { 'command': 'guest-set-memory-blocks', 'data': {'mem-blks': ['GuestMemoryBlock'] }, 'returns': ['GuestMemoryBlockResponse'], - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @GuestMemoryBlockInfo: @@ -1207,7 +1211,7 @@ ## { 'struct': 'GuestMemoryBlockInfo', 'data': {'size': 'uint64'}, - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @guest-get-memory-block-info: @@ -1220,7 +1224,7 @@ ## { 'command': 'guest-get-memory-block-info', 'returns': 'GuestMemoryBlockInfo', - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @GuestExecStatus: --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=dvVdmvrfznP9V0eIinbgDAEQLHjATsC14h6U1iExSrc=; b=NTHY+wMOKqfB2xrw9FRbqpxMQ1vS9QwC+cFS1eP5Y35BYd2mHDi9e1TPoLAQqKMGw7kfxl TFBxBhQSZojh+5YXBSVPFVyIrcpIFyK19g81Vs/pTaX08BegxPLAwfONv1K8AmzZR4b4a3 Zj0iSGY02E6nzWEHnHRtYnvfWXfLeDg= X-MC-Unique: kYbAGB5qPHS_MthZyc46lw-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 10/20] qga: conditionalize schema for commands requiring getifaddrs Date: Tue, 4 Jun 2024 14:49:23 +0100 Message-ID: <20240604134933.220112-11-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509073077100003 Rather than creating stubs for every comamnd that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the network interface command on POSIX platforms lacking getifaddrs(). The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-posix.c | 13 ------------- qga/qapi-schema.json | 15 ++++++++++----- 2 files changed, 10 insertions(+), 18 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 559d71ffae..09d08ee2ca 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1142,14 +1142,6 @@ error: return NULL; } =20 -#else - -GuestNetworkInterfaceList *qmp_guest_network_get_interfaces(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - #endif /* HAVE_GETIFADDRS */ =20 #if !defined(CONFIG_FSFREEZE) @@ -1222,11 +1214,6 @@ qmp_guest_fstrim(bool has_minimum, int64_t minimum, = Error **errp) /* add unsupported commands to the list of blocked RPCs */ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) { -#if !defined(HAVE_GETIFADDRS) - blockedrpcs =3D g_list_append(blockedrpcs, - g_strdup("guest-network-get-interfaces")); -#endif - #if !defined(CONFIG_FSFREEZE) { const char *list[] =3D { diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index d164c30ec3..c37c904aae 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -653,7 +653,8 @@ # Since: 1.1 ## { 'enum': 'GuestIpAddressType', - 'data': [ 'ipv4', 'ipv6' ] } + 'data': [ 'ipv4', 'ipv6' ], + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @GuestIpAddress: @@ -669,7 +670,8 @@ { 'struct': 'GuestIpAddress', 'data': {'ip-address': 'str', 'ip-address-type': 'GuestIpAddressType', - 'prefix': 'int'} } + 'prefix': 'int'}, + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @GuestNetworkInterfaceStat: @@ -701,7 +703,8 @@ 'tx-packets': 'uint64', 'tx-errs': 'uint64', 'tx-dropped': 'uint64' - } } + }, + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @GuestNetworkInterface: @@ -721,7 +724,8 @@ 'data': {'name': 'str', '*hardware-address': 'str', '*ip-addresses': ['GuestIpAddress'], - '*statistics': 'GuestNetworkInterfaceStat' } } + '*statistics': 'GuestNetworkInterfaceStat' }, + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @guest-network-get-interfaces: @@ -733,7 +737,8 @@ # Since: 1.1 ## { 'command': 'guest-network-get-interfaces', - 'returns': ['GuestNetworkInterface'] } + 'returns': ['GuestNetworkInterface'], + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_GETIFADDRS'] } } =20 ## # @GuestLogicalProcessor: --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=z94RVWGhmgprFDgNWzzyY8A22XFBTDl+EjlYBNvlIWo=; b=M3crU2Es9kL/6nUNhhDZQEpCGIYVDIffnBB65ehn1DE+kvpWAYD8xMM3VxczGjokZCU2CC dJnF/hkBpkKR5iaotwMxs19iyKKBrvgDXo8J8MOULMy7NFmiKLCyS/tdLK8EMYqvdZrLO0 ygHdCg8ooJTZSqOAjV1/gv/8/LCAvbQ= X-MC-Unique: 3kBlEO4_MEqj1fHoDQK4Cg-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 11/20] qga: conditionalize schema for commands requiring linux/win32 Date: Tue, 4 Jun 2024 14:49:24 +0100 Message-ID: <20240604134933.220112-12-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509105255100001 Some commands were blocked based on CONFIG_FSFREEZE, but their impl had nothing todo with CONFIG_FSFREEZE, and were instead either Linux-only, or Win+Linux-only. Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the stats and fsinfo commands on platforms that can't support them. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-bsd.c | 24 ----------------------- qga/commands-posix.c | 30 ++--------------------------- qga/qapi-schema.json | 45 +++++++++++++++++++++++++++----------------- 3 files changed, 30 insertions(+), 69 deletions(-) diff --git a/qga/commands-bsd.c b/qga/commands-bsd.c index 17bddda1cf..9ce48af311 100644 --- a/qga/commands-bsd.c +++ b/qga/commands-bsd.c @@ -149,30 +149,6 @@ int qmp_guest_fsfreeze_do_thaw(Error **errp) } return ret; } - -GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestDiskInfoList *qmp_guest_get_disks(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} #endif /* CONFIG_FSFREEZE */ =20 #ifdef HAVE_GETIFADDRS diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 09d08ee2ca..838dc3cf98 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1146,12 +1146,6 @@ error: =20 #if !defined(CONFIG_FSFREEZE) =20 -GuestFilesystemInfoList *qmp_guest_get_fsinfo(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) { error_setg(errp, QERR_UNSUPPORTED); @@ -1181,25 +1175,6 @@ int64_t qmp_guest_fsfreeze_thaw(Error **errp) =20 return 0; } - -GuestDiskInfoList *qmp_guest_get_disks(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestDiskStatsInfoList *qmp_guest_get_diskstats(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -GuestCpuStatsList *qmp_guest_get_cpustats(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - #endif /* CONFIG_FSFREEZE */ =20 #if !defined(CONFIG_FSTRIM) @@ -1217,10 +1192,9 @@ GList *ga_command_init_blockedrpcs(GList *blockedrpc= s) #if !defined(CONFIG_FSFREEZE) { const char *list[] =3D { - "guest-get-fsinfo", "guest-fsfreeze-status", + "guest-fsfreeze-status", "guest-fsfreeze-freeze", "guest-fsfreeze-freeze-list", - "guest-fsfreeze-thaw", "guest-get-fsinfo", - "guest-get-disks", NULL}; + "guest-fsfreeze-thaw", NULL}; char **p =3D (char **)list; =20 while (*p) { diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index c37c904aae..700c5baa5a 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -869,7 +869,8 @@ { 'enum': 'GuestDiskBusType', 'data': [ 'ide', 'fdc', 'scsi', 'virtio', 'xen', 'usb', 'uml', 'sata', 'sd', 'unknown', 'ieee1394', 'ssa', 'fibre', 'raid', 'iscsi', - 'sas', 'mmc', 'virtual', 'file-backed-virtual', 'nvme' ] } + 'sas', 'mmc', 'virtual', 'file-backed-virtual', 'nvme' ], + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 =20 ## @@ -887,7 +888,8 @@ ## { 'struct': 'GuestPCIAddress', 'data': {'domain': 'int', 'bus': 'int', - 'slot': 'int', 'function': 'int'} } + 'slot': 'int', 'function': 'int'}, + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @GuestCCWAddress: @@ -906,7 +908,8 @@ 'data': {'cssid': 'int', 'ssid': 'int', 'subchno': 'int', - 'devno': 'int'} } + 'devno': 'int'}, + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @GuestDiskAddress: @@ -935,7 +938,8 @@ 'bus-type': 'GuestDiskBusType', 'bus': 'int', 'target': 'int', 'unit': 'int', '*serial': 'str', '*dev': 'str', - '*ccw-address': 'GuestCCWAddress'} } + '*ccw-address': 'GuestCCWAddress'}, + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @GuestNVMeSmart: @@ -972,7 +976,8 @@ 'media-errors-lo': 'uint64', 'media-errors-hi': 'uint64', 'number-of-error-log-entries-lo': 'uint64', - 'number-of-error-log-entries-hi': 'uint64' } } + 'number-of-error-log-entries-hi': 'uint64' }, + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @GuestDiskSmart: @@ -986,7 +991,8 @@ { 'union': 'GuestDiskSmart', 'base': { 'type': 'GuestDiskBusType' }, 'discriminator': 'type', - 'data': { 'nvme': 'GuestNVMeSmart' } } + 'data': { 'nvme': 'GuestNVMeSmart' }, + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @GuestDiskInfo: @@ -1011,7 +1017,8 @@ { 'struct': 'GuestDiskInfo', 'data': {'name': 'str', 'partition': 'bool', '*dependencies': ['str'], '*address': 'GuestDiskAddress', '*alias': 'str', - '*smart': 'GuestDiskSmart'} } + '*smart': 'GuestDiskSmart'}, + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @guest-get-disks: @@ -1024,7 +1031,8 @@ # Since: 5.2 ## { 'command': 'guest-get-disks', - 'returns': ['GuestDiskInfo'] } + 'returns': ['GuestDiskInfo'], + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @GuestFilesystemInfo: @@ -1050,7 +1058,8 @@ { 'struct': 'GuestFilesystemInfo', 'data': {'name': 'str', 'mountpoint': 'str', 'type': 'str', '*used-bytes': 'uint64', '*total-bytes': 'uint64', - '*total-bytes-privileged': 'uint64', 'disk': ['GuestDiskAddress= ']} } + '*total-bytes-privileged': 'uint64', 'disk': ['GuestDiskAddress= ']}, + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @guest-get-fsinfo: @@ -1063,7 +1072,8 @@ # Since: 2.2 ## { 'command': 'guest-get-fsinfo', - 'returns': ['GuestFilesystemInfo'] } + 'returns': ['GuestFilesystemInfo'], + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } =20 ## # @guest-set-user-password: @@ -1703,7 +1713,8 @@ '*ios-pgr': 'uint64', '*total-ticks': 'uint64', '*weight-ticks': 'uint64' - } } + }, + 'if': 'CONFIG_LINUX' } =20 ## # @GuestDiskStatsInfo: @@ -1721,7 +1732,7 @@ 'major': 'uint64', 'minor': 'uint64', 'stats': 'GuestDiskStats' }, - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @guest-get-diskstats: @@ -1734,7 +1745,7 @@ ## { 'command': 'guest-get-diskstats', 'returns': ['GuestDiskStatsInfo'], - 'if': 'CONFIG_POSIX' + 'if': 'CONFIG_LINUX' } =20 ## @@ -1748,7 +1759,7 @@ ## { 'enum': 'GuestCpuStatsType', 'data': [ 'linux' ], - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 =20 ## @@ -1794,7 +1805,7 @@ '*guest': 'uint64', '*guestnice': 'uint64' }, - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @GuestCpuStats: @@ -1809,7 +1820,7 @@ 'base': { 'type': 'GuestCpuStatsType' }, 'discriminator': 'type', 'data': { 'linux': 'GuestLinuxCpuStats' }, - 'if': 'CONFIG_POSIX' } + 'if': 'CONFIG_LINUX' } =20 ## # @guest-get-cpustats: @@ -1822,5 +1833,5 @@ ## { 'command': 'guest-get-cpustats', 'returns': ['GuestCpuStats'], - 'if': 'CONFIG_POSIX' + 'if': 'CONFIG_LINUX' } --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=F0Iwf26Q7Y9iuhAgSpnNG+7NeqMA493/z68+eBMg+rU=; b=GGzcH5m1w6zInfE7livCYSzqTEY2/kWVYbYmHFyhuEaHZo5vLQ3ItJkhea/oWrxCSVB7vI c7iWfTBbm0KT/HXsuzNxzstEU3t54KibSX85R+ui8Jn8UFIfRCKdyEyyke/Yftk3oEPeSk ePItGYT/f7C+dRdqZnK2U/9/qL5/nTg= X-MC-Unique: YVcUfWWEOfWLa1NdNp1vTA-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 12/20] qga: conditionalize schema for commands only supported on Windows Date: Tue, 4 Jun 2024 14:49:25 +0100 Message-ID: <20240604134933.220112-13-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509129475100002 Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the commands on non-Windows. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-posix.c | 9 --------- qga/qapi-schema.json | 15 ++++++++++----- 2 files changed, 10 insertions(+), 14 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 838dc3cf98..b7f96aa005 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1207,8 +1207,6 @@ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) blockedrpcs =3D g_list_append(blockedrpcs, g_strdup("guest-fstrim")); #endif =20 - blockedrpcs =3D g_list_append(blockedrpcs, g_strdup("guest-get-devices= ")); - return blockedrpcs; } =20 @@ -1419,13 +1417,6 @@ GuestOSInfo *qmp_guest_get_osinfo(Error **errp) return info; } =20 -GuestDeviceInfoList *qmp_guest_get_devices(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - - return NULL; -} - #ifndef HOST_NAME_MAX # ifdef _POSIX_HOST_NAME_MAX # define HOST_NAME_MAX _POSIX_HOST_NAME_MAX diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 700c5baa5a..2704b814ab 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -1527,7 +1527,8 @@ # @pci: PCI device ## { 'enum': 'GuestDeviceType', - 'data': [ 'pci' ] } + 'data': [ 'pci' ], + 'if': 'CONFIG_WIN32' } =20 ## # @GuestDeviceIdPCI: @@ -1539,7 +1540,8 @@ # Since: 5.2 ## { 'struct': 'GuestDeviceIdPCI', - 'data': { 'vendor-id': 'uint16', 'device-id': 'uint16' } } + 'data': { 'vendor-id': 'uint16', 'device-id': 'uint16' }, + 'if': 'CONFIG_WIN32' } =20 ## # @GuestDeviceId: @@ -1553,7 +1555,8 @@ { 'union': 'GuestDeviceId', 'base': { 'type': 'GuestDeviceType' }, 'discriminator': 'type', - 'data': { 'pci': 'GuestDeviceIdPCI' } } + 'data': { 'pci': 'GuestDeviceIdPCI' }, + 'if': 'CONFIG_WIN32' } =20 ## # @GuestDeviceInfo: @@ -1574,7 +1577,8 @@ '*driver-date': 'int', '*driver-version': 'str', '*id': 'GuestDeviceId' - } } + }, + 'if': 'CONFIG_WIN32' } =20 ## # @guest-get-devices: @@ -1586,7 +1590,8 @@ # Since: 5.2 ## { 'command': 'guest-get-devices', - 'returns': ['GuestDeviceInfo'] } + 'returns': ['GuestDeviceInfo'], + 'if': 'CONFIG_WIN32' } =20 ## # @GuestAuthorizedKeys: --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=A8RFNKgyFIcY7EBRYpleoUXFOia91EodAg+WIEAdwmA=; b=ZQAYOIC2YhEsuxFfkGao4kRYgX8VnHinco6aggiusQ82naaxeJk74hA14LCdtB1Mj0VkRz GGA9OaX+FHf//gcCXA94K8QVxaJuVkwc/JD4Cb7bPGeOEynmorukYkoQXvHzMgbkrjpHxg V0ji51yYu1okTx33OaoFPfQJsiCHL20= X-MC-Unique: GxJHj2IkMGKre3lZnE4e3g-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 13/20] qga: conditionalize schema for commands requiring fsfreeze Date: Tue, 4 Jun 2024 14:49:26 +0100 Message-ID: <20240604134933.220112-14-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509151477100005 Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the schema to fully exclude generation of the filesystem freezing commands on POSIX platforms lacking the required APIs. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-posix.c | 47 -------------------------------------------- qga/qapi-schema.json | 15 +++++++++----- 2 files changed, 10 insertions(+), 52 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index b7f96aa005..9207cb7a8f 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1144,39 +1144,6 @@ error: =20 #endif /* HAVE_GETIFADDRS */ =20 -#if !defined(CONFIG_FSFREEZE) - -GuestFsfreezeStatus qmp_guest_fsfreeze_status(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - - return 0; -} - -int64_t qmp_guest_fsfreeze_freeze(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - - return 0; -} - -int64_t qmp_guest_fsfreeze_freeze_list(bool has_mountpoints, - strList *mountpoints, - Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - - return 0; -} - -int64_t qmp_guest_fsfreeze_thaw(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - - return 0; -} -#endif /* CONFIG_FSFREEZE */ - #if !defined(CONFIG_FSTRIM) GuestFilesystemTrimResponse * qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) @@ -1189,20 +1156,6 @@ qmp_guest_fstrim(bool has_minimum, int64_t minimum, = Error **errp) /* add unsupported commands to the list of blocked RPCs */ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) { -#if !defined(CONFIG_FSFREEZE) - { - const char *list[] =3D { - "guest-fsfreeze-status", - "guest-fsfreeze-freeze", "guest-fsfreeze-freeze-list", - "guest-fsfreeze-thaw", NULL}; - char **p =3D (char **)list; - - while (*p) { - blockedrpcs =3D g_list_append(blockedrpcs, g_strdup(*p++)); - } - } -#endif - #if !defined(CONFIG_FSTRIM) blockedrpcs =3D g_list_append(blockedrpcs, g_strdup("guest-fstrim")); #endif diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 2704b814ab..098fa7a08b 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -412,7 +412,8 @@ # Since: 0.15.0 ## { 'enum': 'GuestFsfreezeStatus', - 'data': [ 'thawed', 'frozen' ] } + 'data': [ 'thawed', 'frozen' ], + 'if': { 'any': ['CONFIG_WIN32', 'CONFIG_FSFREEZE'] } } =20 ## # @guest-fsfreeze-status: @@ -428,7 +429,8 @@ # Since: 0.15.0 ## { 'command': 'guest-fsfreeze-status', - 'returns': 'GuestFsfreezeStatus' } + 'returns': 'GuestFsfreezeStatus', + 'if': { 'any': ['CONFIG_WIN32', 'CONFIG_FSFREEZE'] } } =20 ## # @guest-fsfreeze-freeze: @@ -450,7 +452,8 @@ # Since: 0.15.0 ## { 'command': 'guest-fsfreeze-freeze', - 'returns': 'int' } + 'returns': 'int', + 'if': { 'any': ['CONFIG_WIN32', 'CONFIG_FSFREEZE'] } } =20 ## # @guest-fsfreeze-freeze-list: @@ -470,7 +473,8 @@ ## { 'command': 'guest-fsfreeze-freeze-list', 'data': { '*mountpoints': ['str'] }, - 'returns': 'int' } + 'returns': 'int', + 'if': { 'any': ['CONFIG_WIN32', 'CONFIG_FSFREEZE'] } } =20 ## # @guest-fsfreeze-thaw: @@ -487,7 +491,8 @@ # Since: 0.15.0 ## { 'command': 'guest-fsfreeze-thaw', - 'returns': 'int' } + 'returns': 'int', + 'if': { 'any': ['CONFIG_WIN32', 'CONFIG_FSFREEZE'] } } =20 ## # @GuestFilesystemTrimResult: --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=pEIZbL4rSzz/tztL5tUBX070OLTAhHWsfD6/Yg3uOKA=; b=Jpbcll9tJfrnPAWwmteAAr9igSVoC+0vmWQ7z9S8O+13Fam9UqLGer4oTLd6Suthu+4JbJ 6q9tx2ACP9cHCwNNTn8TFhfBUgtUor2v7FxEGQQypKtr2OqXq9cXN084LUmFRRIeItlGe6 YPu7/wgPCjpGad62KCPK6wiRBshUPC4= X-MC-Unique: E3MbbcM8O6up-0AM8V6yBQ-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 14/20] qga: conditionalize schema for commands requiring fstrim Date: Tue, 4 Jun 2024 14:49:27 +0100 Message-ID: <20240604134933.220112-15-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509048982100005 Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the filesystem trimming commands on POSIX platforms lacking required APIs. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-posix.c | 13 ------------- qga/qapi-schema.json | 9 ++++++--- 2 files changed, 6 insertions(+), 16 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index 9207cb7a8f..d92fa0ec87 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1144,22 +1144,9 @@ error: =20 #endif /* HAVE_GETIFADDRS */ =20 -#if !defined(CONFIG_FSTRIM) -GuestFilesystemTrimResponse * -qmp_guest_fstrim(bool has_minimum, int64_t minimum, Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} -#endif - /* add unsupported commands to the list of blocked RPCs */ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) { -#if !defined(CONFIG_FSTRIM) - blockedrpcs =3D g_list_append(blockedrpcs, g_strdup("guest-fstrim")); -#endif - return blockedrpcs; } =20 diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 098fa7a08b..0f27375ea0 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -509,7 +509,8 @@ ## { 'struct': 'GuestFilesystemTrimResult', 'data': {'path': 'str', - '*trimmed': 'int', '*minimum': 'int', '*error': 'str'} } + '*trimmed': 'int', '*minimum': 'int', '*error': 'str'}, + 'if': { 'any': ['CONFIG_WIN32', 'CONFIG_FSTRIM'] } } =20 ## # @GuestFilesystemTrimResponse: @@ -519,7 +520,8 @@ # Since: 2.4 ## { 'struct': 'GuestFilesystemTrimResponse', - 'data': {'paths': ['GuestFilesystemTrimResult']} } + 'data': {'paths': ['GuestFilesystemTrimResult']}, + 'if': { 'any': ['CONFIG_WIN32', 'CONFIG_FSTRIM'] } } =20 ## # @guest-fstrim: @@ -541,7 +543,8 @@ ## { 'command': 'guest-fstrim', 'data': { '*minimum': 'int' }, - 'returns': 'GuestFilesystemTrimResponse' } + 'returns': 'GuestFilesystemTrimResponse', + 'if': { 'any': ['CONFIG_WIN32', 'CONFIG_FSTRIM'] } } =20 ## # @guest-suspend-disk: --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=2WRUxcFI0iNz8ixHciEAg62FI8yp4wjx9xkbS+RWExw=; b=UHThCQTF9NpZ9jGMQExoNPbWTSQ6h4/ThS09kcGBQri9/NLOmhwghAOn5BRWl8LWjVxd7x E/XW0Z95sV1UlOwfDu/vBBlTUok0oPxioyBlonRfV0tCR025KdeNAQ8AhYdeWE50d9qi6W 25UZVDeSpneu1cJ+LdxH0dOeA2Ktsoc= X-MC-Unique: uvnbBhORPL2hQqwEbrrSZw-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 15/20] qga: conditionalize schema for commands requiring libudev Date: Tue, 4 Jun 2024 14:49:28 +0100 Message-ID: <20240604134933.220112-16-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509087106100001 Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the schema to fully exclude generation of the filesystem trimming commands on POSIX platforms lacking required APIs. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-linux.c | 8 -------- qga/qapi-schema.json | 8 ++++---- 2 files changed, 4 insertions(+), 12 deletions(-) diff --git a/qga/commands-linux.c b/qga/commands-linux.c index 73b13fbaf6..89bdcded01 100644 --- a/qga/commands-linux.c +++ b/qga/commands-linux.c @@ -1049,14 +1049,6 @@ GuestDiskInfoList *qmp_guest_get_disks(Error **errp) return ret; } =20 -#else - -GuestDiskInfoList *qmp_guest_get_disks(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - #endif =20 /* Return a list of the disk device(s)' info which @mount lies on */ diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 0f27375ea0..0b7f911ca5 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -985,7 +985,7 @@ 'media-errors-hi': 'uint64', 'number-of-error-log-entries-lo': 'uint64', 'number-of-error-log-entries-hi': 'uint64' }, - 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LIBUDEV' ] } } =20 ## # @GuestDiskSmart: @@ -1000,7 +1000,7 @@ 'base': { 'type': 'GuestDiskBusType' }, 'discriminator': 'type', 'data': { 'nvme': 'GuestNVMeSmart' }, - 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LIBUDEV' ] } } =20 ## # @GuestDiskInfo: @@ -1026,7 +1026,7 @@ 'data': {'name': 'str', 'partition': 'bool', '*dependencies': ['str'], '*address': 'GuestDiskAddress', '*alias': 'str', '*smart': 'GuestDiskSmart'}, - 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LIBUDEV' ] } } =20 ## # @guest-get-disks: @@ -1040,7 +1040,7 @@ ## { 'command': 'guest-get-disks', 'returns': ['GuestDiskInfo'], - 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX' ] } } + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LIBUDEV' ] } } =20 ## # @GuestFilesystemInfo: --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=QQ4M6CW3rYAt+E6v3ZCnO9rcVZFq+BdWy1qO/IF7b/k=; b=ThpRlkz/7VfqTsYt4LA59twL17LKZ/p1G5+ohtWyHC3DqhT5GuPrDu2yZJE47cnHnu+76Q 6GwhWfkc97L1DM8eKNTLzyyBWO1s8e1B7U+crUPMwktOuQvdwWpFFaVB5DxkE6Bv/Jr/bP WbnxHaRiwwUyIJsIfd04frVZqNYHsBk= X-MC-Unique: -Fo_AEcJNDyUp2KBRG0xmQ-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 16/20] qga: conditionalize schema for commands requiring utmpx Date: Tue, 4 Jun 2024 14:49:29 +0100 Message-ID: <20240604134933.220112-17-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509083086100001 Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the get-users command on POSIX platforms lacking required APIs. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-posix.c | 10 +--------- qga/qapi-schema.json | 6 ++++-- 2 files changed, 5 insertions(+), 11 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index d92fa0ec87..a353f64ae6 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1212,15 +1212,7 @@ GuestUserList *qmp_guest_get_users(Error **errp) return head; } =20 -#else - -GuestUserList *qmp_guest_get_users(Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); - return NULL; -} - -#endif +#endif /* HAVE_UTMPX */ =20 /* Replace escaped special characters with their real values. The replacem= ent * is done in place -- returned value is in the original string. diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 0b7f911ca5..70d4f173ad 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -1413,7 +1413,8 @@ # Since: 2.10 ## { 'struct': 'GuestUser', - 'data': { 'user': 'str', 'login-time': 'number', '*domain': 'str' } } + 'data': { 'user': 'str', 'login-time': 'number', '*domain': 'str' }, + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_UTMPX' ] } } =20 ## # @guest-get-users: @@ -1425,7 +1426,8 @@ # Since: 2.10 ## { 'command': 'guest-get-users', - 'returns': ['GuestUser'] } + 'returns': ['GuestUser'], + 'if': { 'any': ['CONFIG_WIN32', 'HAVE_UTMPX' ] } } =20 ## # @GuestTimezone: --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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dmarc=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1717509125427182.9391456221589; Tue, 4 Jun 2024 06:52:05 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sEUYS-0006g8-Nv; Tue, 04 Jun 2024 09:50:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sEUYR-0006br-Lc for qemu-devel@nongnu.org; Tue, 04 Jun 2024 09:50:23 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sEUYP-0003BK-3j for qemu-devel@nongnu.org; Tue, 04 Jun 2024 09:50:23 -0400 Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-86-qSyqN-djMvmfA-eTPvwTVw-1; Tue, 04 Jun 2024 09:50:16 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 91D728007A1; Tue, 4 Jun 2024 13:50:16 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.39.194.137]) by smtp.corp.redhat.com (Postfix) with ESMTP id A8841C15C40; Tue, 4 Jun 2024 13:50:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717509020; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Gwe3McvH0597SIk+LYVVN7py9uHxlvJhA93NGDK0X0w=; b=WbrnU0lkYP34PkbaAKlEjWa03g3x2oLy0ogroQtf1mi4WXs1id/OO2IQtRtMS2tRfFTXIw 3uhSveG+yZjqZi4tBgSzObe4qdNtoaOdn88GMNxfUuBjxjHfDYkNPA+q41Yonw6vqcJyza XPwfar0UiRwagYhh1/Ux1kmQB60tg08= X-MC-Unique: qSyqN-djMvmfA-eTPvwTVw-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 17/20] qga: conditionalize schema for commands not supported on other UNIX Date: Tue, 4 Jun 2024 14:49:30 +0100 Message-ID: <20240604134933.220112-18-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509127373100003 Rather than creating stubs for every command that just return QERR_UNSUPPORTED, use 'if' conditions in the QAPI schema to fully exclude generation of the commands on other UNIX. The command will be rejected at QMP dispatch time instead, avoiding reimplementing rejection by blocking the stub commands. This has the additional benefit that the QGA protocol reference now documents what conditions enable use of the command. Signed-off-by: Daniel P. Berrang=C3=A9 --- meson.build | 1 + qga/commands-posix.c | 8 -------- qga/qapi-schema.json | 3 ++- 3 files changed, 3 insertions(+), 9 deletions(-) diff --git a/meson.build b/meson.build index 356b2a4817..f39a9b123f 100644 --- a/meson.build +++ b/meson.build @@ -2233,6 +2233,7 @@ config_host_data.set('CONFIG_ATTR', libattr.found()) config_host_data.set('CONFIG_BDRV_WHITELIST_TOOLS', get_option('block_drv_= whitelist_in_tools')) config_host_data.set('CONFIG_BRLAPI', brlapi.found()) config_host_data.set('CONFIG_BSD', host_os in bsd_oses) +config_host_data.set('CONFIG_FREEBSD', host_os =3D=3D 'freebsd') config_host_data.set('CONFIG_CAPSTONE', capstone.found()) config_host_data.set('CONFIG_COCOA', cocoa.found()) config_host_data.set('CONFIG_DARWIN', host_os =3D=3D 'darwin') diff --git a/qga/commands-posix.c b/qga/commands-posix.c index a353f64ae6..f4104f2760 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -877,14 +877,6 @@ void qmp_guest_set_user_password(const char *username, return; } } -#else /* __linux__ || __FreeBSD__ */ -void qmp_guest_set_user_password(const char *username, - const char *password, - bool crypted, - Error **errp) -{ - error_setg(errp, QERR_UNSUPPORTED); -} #endif /* __linux__ || __FreeBSD__ */ =20 #ifdef HAVE_GETIFADDRS diff --git a/qga/qapi-schema.json b/qga/qapi-schema.json index 70d4f173ad..571be3a914 100644 --- a/qga/qapi-schema.json +++ b/qga/qapi-schema.json @@ -1108,7 +1108,8 @@ # Since: 2.3 ## { 'command': 'guest-set-user-password', - 'data': { 'username': 'str', 'password': 'str', 'crypted': 'bool' } } + 'data': { 'username': 'str', 'password': 'str', 'crypted': 'bool' }, + 'if': { 'any': [ 'CONFIG_WIN32', 'CONFIG_LINUX', 'CONFIG_FREEBSD'] } } =20 ## # @GuestMemoryBlock: --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; 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Tue, 04 Jun 2024 09:50:19 -0400 Received: from smtp.corp.redhat.com (int-mx08.intmail.prod.int.rdu2.redhat.com [10.11.54.8]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9506A8038E3; Tue, 4 Jun 2024 13:50:18 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.39.194.137]) by smtp.corp.redhat.com (Postfix) with ESMTP id CC678C15C41; Tue, 4 Jun 2024 13:50:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717509022; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=qYZr3fwgw717JFUyBmktse/fqjl/ZkKCOJMRUp6hAp4=; b=JG3u9lCL2mFMKOxIpmqpTjN0eo9sTLUY+H/Q0SzNmwZheGJ9UWSqy3YGowGDoVNfsVY7iX Wtak7XwVWC/f20kSG3Ee1NcfM5+MEqOna7wiPjVJCxuLLuQyBYnJ1T8lLdiQpyltq/lTVP CqrqwAu+FzxZtA9pvNXgmDnNb01rHYc= X-MC-Unique: ukYt0j7WMDakCACaJGzbvQ-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 18/20] qga: add note about where to disable commands for a platform Date: Tue, 4 Jun 2024 14:49:31 +0100 Message-ID: <20240604134933.220112-19-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509077075100001 Any command that is known to be unimplemented on a given build target must be disabled using a QAPI schema conditional. Only use dynamidc disabling for commands that require a runtime feature check. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/commands-posix.c | 8 +++++++- qga/commands-win32.c | 8 +++++++- 2 files changed, 14 insertions(+), 2 deletions(-) diff --git a/qga/commands-posix.c b/qga/commands-posix.c index f4104f2760..8f09162562 100644 --- a/qga/commands-posix.c +++ b/qga/commands-posix.c @@ -1136,7 +1136,13 @@ error: =20 #endif /* HAVE_GETIFADDRS */ =20 -/* add unsupported commands to the list of blocked RPCs */ +/* + * Add commands that cannot be supported based on the results of + * dynamic check of the running OS installation. + * + * Commands that cannot be supported at all on a given platform + * should be disabled with a condition in the QAPI schema. + */ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) { return blockedrpcs; diff --git a/qga/commands-win32.c b/qga/commands-win32.c index 2533e4c748..0198e37a96 100644 --- a/qga/commands-win32.c +++ b/qga/commands-win32.c @@ -1958,7 +1958,13 @@ done: g_free(rawpasswddata); } =20 -/* add unsupported commands to the list of blocked RPCs */ +/* + * Add commands that cannot be supported based on the results of + * dynamic check of the running OS installation. + * + * Commands that cannot be supported at all on Wnidows + * should be disabled with a condition in the QAPI schema. + */ GList *ga_command_init_blockedrpcs(GList *blockedrpcs) { if (!vss_init(true)) { --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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bh=VTyvFwWS+gOucVDy3woBokmJXuSY83NZdK8OqvfOv38=; b=KpcKOvoveNIvjuTDtjZrTUNhQmpvh9SUtVZSQGNQBO+dHn1XNRk/wRvVU0AjWTFc8b2KDS DfahzklnmWfB39bSp/x0O/0rhRyObf3S/ojc5yB2zPkqMANv50BNOFWbCTfVozbkWd1ggZ amjQeK5SZvoFCZDwslHahbaOjSf3yjA= X-MC-Unique: PGxsypQiMCC7Z2go71FlWg-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 19/20] qga: move declare of QGAConfig struct to top of file Date: Tue, 4 Jun 2024 14:49:32 +0100 Message-ID: <20240604134933.220112-20-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.129.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509079078100005 It is referenced byy QGAState already, and it is clearer to declare all data types at the top of the file, rather than have them mixed with code later. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/main.c | 44 ++++++++++++++++++++++---------------------- 1 file changed, 22 insertions(+), 22 deletions(-) diff --git a/qga/main.c b/qga/main.c index bdf5344584..e8f52f0794 100644 --- a/qga/main.c +++ b/qga/main.c @@ -70,6 +70,28 @@ typedef struct GAPersistentState { =20 typedef struct GAConfig GAConfig; =20 +struct GAConfig { + char *channel_path; + char *method; + char *log_filepath; + char *pid_filepath; +#ifdef CONFIG_FSFREEZE + char *fsfreeze_hook; +#endif + char *state_dir; +#ifdef _WIN32 + const char *service; +#endif + gchar *bliststr; /* blockedrpcs may point to this string */ + gchar *aliststr; /* allowedrpcs may point to this string */ + GList *blockedrpcs; + GList *allowedrpcs; + int daemonize; + GLogLevelFlags log_level; + int dumpconf; + bool retry_path; +}; + struct GAState { JSONMessageParser parser; GMainLoop *main_loop; @@ -996,28 +1018,6 @@ static GList *split_list(const gchar *str, const gcha= r *delim) return list; } =20 -struct GAConfig { - char *channel_path; - char *method; - char *log_filepath; - char *pid_filepath; -#ifdef CONFIG_FSFREEZE - char *fsfreeze_hook; -#endif - char *state_dir; -#ifdef _WIN32 - const char *service; -#endif - gchar *bliststr; /* blockedrpcs may point to this string */ - gchar *aliststr; /* allowedrpcs may point to this string */ - GList *blockedrpcs; - GList *allowedrpcs; - int daemonize; - GLogLevelFlags log_level; - int dumpconf; - bool retry_path; -}; - static void config_load(GAConfig *config) { GError *gerr =3D NULL; --=20 2.45.1 From nobody Mon Nov 25 02:44:22 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=pass(p=none dis=none) header.from=redhat.com ARC-Seal: i=1; a=rsa-sha256; t=1717509112; cv=none; d=zohomail.com; s=zohoarc; b=LTTKrGmtzdeNakSnJUiub3Mm0tg3d7AvHtqnReKeJTR7KWV9QLMrfpsaqNNnRNbc6MFqL16cSPdYm5ErMj9vj7S7GKAHzGQ1eRzIP91KfDCLkZ9as+FqehvHwtV4GGuPa84BBlUWHNQTznTvrqpfVY3Xo0BWyiVuUO2AJRmfpp8= ARC-Message-Signature: i=1; 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Tue, 4 Jun 2024 13:50:23 +0000 (UTC) Received: from toolbox.redhat.com (unknown [10.39.194.137]) by smtp.corp.redhat.com (Postfix) with ESMTP id B6237C15C40; Tue, 4 Jun 2024 13:50:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1717509025; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=DRSsWVC3cw+Ko6ofdfEb/eTPlDkeBJ6vGSs+sArOcqc=; b=SDtlGOYEgW7eKq0hWpu/+irbj9jcnwR3QRNcK+l5R0JYx5fTnkXVK/o2AEjAy7o4fCU0An peMJDbGMSOxrB4qw5YKj0v3hiRp5SkYTAaNrZbOxOjF42WE8Ki4tTnHAk1qp0KTjdCNAGD rkCb4NEbXvij6iyZPAr/YdzI078xuCc= X-MC-Unique: TcTV_JL2On2C3gAdlmTQ2w-1 From: =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= To: qemu-devel@nongnu.org Cc: Thomas Huth , Konstantin Kostiuk , Michael Roth , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Subject: [PATCH 20/20] qga: centralize logic for disabling/enabling commands Date: Tue, 4 Jun 2024 14:49:33 +0100 Message-ID: <20240604134933.220112-21-berrange@redhat.com> In-Reply-To: <20240604134933.220112-1-berrange@redhat.com> References: <20240604134933.220112-1-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.11.54.8 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1717509113269100001 It is confusing having many different pieces of code enabling and disabling commands, and it is not clear that they all have the same semantics, especially wrt prioritization of the block/allow lists. Centralizing the code in a single method "ga_apply_command_filters" will provide a strong guarantee of consistency and clarify the intended behaviour. Signed-off-by: Daniel P. Berrang=C3=A9 --- qga/main.c | 110 ++++++++++++++++++++++++++--------------------------- 1 file changed, 55 insertions(+), 55 deletions(-) diff --git a/qga/main.c b/qga/main.c index e8f52f0794..c7b7b0a9bc 100644 --- a/qga/main.c +++ b/qga/main.c @@ -419,60 +419,79 @@ static gint ga_strcmp(gconstpointer str1, gconstpoint= er str2) return strcmp(str1, str2); } =20 -/* disable commands that aren't safe for fsfreeze */ -static void ga_disable_not_allowed_freeze(const QmpCommand *cmd, void *opa= que) +static bool ga_command_is_allowed(const QmpCommand *cmd, GAState *state) { - bool allowed =3D false; int i =3D 0; + GAConfig *config =3D state->config; const char *name =3D qmp_command_name(cmd); + /* Fallback policy is allow everything */ + bool allowed =3D true; =20 - while (ga_freeze_allowlist[i] !=3D NULL) { - if (strcmp(name, ga_freeze_allowlist[i]) =3D=3D 0) { + if (config->allowedrpcs) { + /* + * If an allow-list is given, this changes the fallback + * policy to deny everything + */ + allowed =3D false; + + if (g_list_find_custom(config->allowedrpcs, name, ga_strcmp) !=3D = NULL) { allowed =3D true; } - i++; - } - if (!allowed) { - g_debug("disabling command: %s", name); - qmp_disable_command(&ga_commands, name, "the agent is in frozen st= ate"); } -} - -/* [re-]enable all commands, except those explicitly blocked by user */ -static void ga_enable_non_blocked(const QmpCommand *cmd, void *opaque) -{ - GAState *s =3D opaque; - GList *blockedrpcs =3D s->blockedrpcs; - GList *allowedrpcs =3D s->allowedrpcs; - const char *name =3D qmp_command_name(cmd); =20 - if (g_list_find_custom(blockedrpcs, name, ga_strcmp) =3D=3D NULL) { - if (qmp_command_is_enabled(cmd)) { - return; + /* + * If both allowedrpcs and blockedrpcs are set, the blocked + * list will take priority + */ + if (config->blockedrpcs) { + if (g_list_find_custom(config->blockedrpcs, name, ga_strcmp) !=3D = NULL) { + allowed =3D false; } + } =20 - if (allowedrpcs && - g_list_find_custom(allowedrpcs, name, ga_strcmp) =3D=3D NULL) { - return; - } + /* + * If frozen, this filtering must take priority over + * absolutely everything + */ + if (state->frozen) { + allowed =3D false; =20 - g_debug("enabling command: %s", name); - qmp_enable_command(&ga_commands, name); + while (ga_freeze_allowlist[i] !=3D NULL) { + if (strcmp(name, ga_freeze_allowlist[i]) =3D=3D 0) { + allowed =3D true; + } + i++; + } } + + return allowed; } =20 -/* disable commands that aren't allowed */ -static void ga_disable_not_allowed(const QmpCommand *cmd, void *opaque) +static void ga_apply_command_filters_iter(const QmpCommand *cmd, void *opa= que) { - GList *allowedrpcs =3D opaque; + GAState *state =3D opaque; + bool want =3D ga_command_is_allowed(cmd, state); + bool have =3D qmp_command_is_enabled(cmd); const char *name =3D qmp_command_name(cmd); =20 - if (g_list_find_custom(allowedrpcs, name, ga_strcmp) =3D=3D NULL) { + if (want =3D=3D have) { + return; + } + + if (qmp_command_is_enabled(cmd)) { g_debug("disabling command: %s", name); qmp_disable_command(&ga_commands, name, "the command is not allowe= d"); + } else { + g_debug("enabling command: %s", name); + qmp_enable_command(&ga_commands, name); } } =20 +static void ga_apply_command_filters(GAState *state) +{ + qmp_for_each_command(&ga_commands, ga_apply_command_filters_iter, stat= e); +} + static bool ga_create_file(const char *path) { int fd =3D open(path, O_CREAT | O_WRONLY, S_IWUSR | S_IRUSR); @@ -505,15 +524,14 @@ void ga_set_frozen(GAState *s) if (ga_is_frozen(s)) { return; } - /* disable all forbidden (for frozen state) commands */ - qmp_for_each_command(&ga_commands, ga_disable_not_allowed_freeze, NULL= ); g_warning("disabling logging due to filesystem freeze"); - ga_disable_logging(s); s->frozen =3D true; if (!ga_create_file(s->state_filepath_isfrozen)) { g_warning("unable to create %s, fsfreeze may not function properly= ", s->state_filepath_isfrozen); } + ga_apply_command_filters(s); + ga_disable_logging(s); } =20 void ga_unset_frozen(GAState *s) @@ -545,12 +563,12 @@ void ga_unset_frozen(GAState *s) } =20 /* enable all disabled, non-blocked and allowed commands */ - qmp_for_each_command(&ga_commands, ga_enable_non_blocked, s); s->frozen =3D false; if (!ga_delete_file(s->state_filepath_isfrozen)) { g_warning("unable to delete %s, fsfreeze may not function properly= ", s->state_filepath_isfrozen); } + ga_apply_command_filters(s); } =20 #ifdef CONFIG_FSFREEZE @@ -1414,7 +1432,6 @@ static GAState *initialize_agent(GAConfig *config, in= t socket_activation) s->deferred_options.log_filepath =3D config->log_filepath; } ga_disable_logging(s); - qmp_for_each_command(&ga_commands, ga_disable_not_allowed_freeze, = NULL); } else { if (config->daemonize) { become_daemon(config->pid_filepath); @@ -1438,25 +1455,8 @@ static GAState *initialize_agent(GAConfig *config, i= nt socket_activation) return NULL; } =20 - if (config->allowedrpcs) { - qmp_for_each_command(&ga_commands, ga_disable_not_allowed, config-= >allowedrpcs); - s->allowedrpcs =3D config->allowedrpcs; - } + ga_apply_command_filters(s); =20 - /* - * Some commands can be blocked due to system limitation. - * Initialize blockedrpcs list even if allowedrpcs specified. - */ - config->blockedrpcs =3D ga_command_init_blockedrpcs(config->blockedrpc= s); - if (config->blockedrpcs) { - GList *l =3D config->blockedrpcs; - s->blockedrpcs =3D config->blockedrpcs; - do { - g_debug("disabling command: %s", (char *)l->data); - qmp_disable_command(&ga_commands, l->data, NULL); - l =3D g_list_next(l); - } while (l); - } s->command_state =3D ga_command_state_new(); ga_command_state_init(s, s->command_state); ga_command_state_init_all(s->command_state); --=20 2.45.1