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([2804:7f0:b402:7782:3e7c:3fff:fe7a:e83b]) by smtp.gmail.com with ESMTPSA id v13-20020aa7808d000000b006cb9f436232sm6392316pff.114.2023.11.26.21.21.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 26 Nov 2023 21:22:00 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1701062522; x=1701667322; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=ypraAgK9dC15p7zOrjfOuMTYBF2BK9MBqFt+ed7oWgM=; b=R7A17RlpFU7UTMgVmxPNs2lW1MMuAoQUIyPlTCU8Df7cIZpOmyCgNRZtHGpDs5fmiJ CtW0pdYGUFGlYp0zNRHQY66sHrwvjevkA5g+bsLYVQlUwzW7fvQf9jM5AjgeyOjcKBf1 +OMqqEEKFPyMIIPMmUUEOicHaaeBTNwENofIZlgLUgaCigH9K6kTx1rDjHB/4j5OYaHV BS1HxLkfp1o9XX/4d5/1qGkWfP6Xg0Po04bJv5CWzWeX0Fmobt6ajj1kgwhenFhpp0aQ V4HuWzohecyzvEWEpX6jpdYKw7PEi9+7D3KI/XzlEDHEak4j/qSzg7kQMd70X3vvpKA/ e1gg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1701062522; x=1701667322; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ypraAgK9dC15p7zOrjfOuMTYBF2BK9MBqFt+ed7oWgM=; b=P8DfBpnc92Zrx7HTWHmsOGABTw4Xt7Timpq/+QQTIUbw+VDaj3iGAYAiKSn5TZUnbF zLOO/hgFEW992P20J+QZRSlvBSklB8pz4ujAu/GydhRwcGbBIdkMLO1gn3PZgbmkPO/t NYySWc2nCc9PX3Q20AAdOFIHrxPAeuBI6XEkCc1UQbxqrd83VXJ6TBTixTfhXdEvxdZF pNTtArATtJAs5DuguYG2OEfbBcNRTOwghA1DXzgp2NBO5Qy3vz8F11+xj0EVjvEES+AI deCoBXKDDY/XhCZj4o0KkuHkY39694YwFSTgs3DeA6hAacWc4ddCPB0Abo4Ak3wEYhvY QmKg== X-Gm-Message-State: AOJu0YxV1PVpIyTrGXorP0ljF1HOjjjgkB3/ROm7r2mn9qEFss58Z3DM TjhjfC74IfYapLuH/Od4r8zCW40gFeIMXhaOuoGQZBiZSpM= X-Google-Smtp-Source: AGHT+IEJXPnNwsS9hPgkcShoAP8RyLu76biS1bieAnxmTqyUu0NXJcEaEaP8fEKtNl9FNKhPkzL8GA== X-Received: by 2002:a05:6870:4712:b0:1f5:c37c:ac37 with SMTP id b18-20020a056870471200b001f5c37cac37mr13667136oaq.30.1701062521454; Sun, 26 Nov 2023 21:22:01 -0800 (PST) From: Gustavo Romero To: qemu-devel@nongnu.org, philmd@linaro.org, peter.maydell@linaro.org, alex.bennee@linaro.org, richard.henderson@linaro.org Cc: thuth@redhat.com, gustavo.romero@linaro.org Subject: [PATCH 2/4] tests/qtest: Reorganize common code in ivshmem-test Date: Mon, 27 Nov 2023 05:20:22 +0000 Message-Id: <20231127052024.435743-3-gustavo.romero@linaro.org> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231127052024.435743-1-gustavo.romero@linaro.org> References: <20231127052024.435743-1-gustavo.romero@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable 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=2001:4860:4864:20::41; envelope-from=gustavo.romero@linaro.org; helo=mail-oa1-x41.google.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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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 @linaro.org) X-ZM-MESSAGEID: 1701062591447000002 Content-Type: text/plain; charset="utf-8" This commit reorganizes the ivshmem-test qtest by moving common structs, functions, and code that can be utilized by other ivshmem qtests into two new files: ivshmem-utils.h and ivshmem-utils.c. Enum Reg, struct ServerThread, and mktempshm() have been relocated to these new files. Two new functions have been introduced to handle the ivshmem server start/stop: test_ivshmem_server_{start,stop}. To accommodate the new way for starting/stopping the ivshmem server, struct ServerThread now includes two new members: 'server', previously present but not a member of any struct; and 'status', a new member of a new type, ServerStartStatus, used to track and handle service termination properly. Additionally, a new function, mktempsocket(), has been added to help create a unix socket filename, similar to what mktempshm() does for the creation of a shm file. Finally, the ivshmem-test qtest has been adapted to use the new ivhsmem utils. Adjustments in that sense have also been made to meson.build; also 'rt' have been removed as a lib dependency for ivhsmem-test.c. Two lines unrelated to these changes have had their line indentation also fixed in meson.build. Signed-off-by: Gustavo Romero --- tests/qtest/ivshmem-test.c | 113 ++------------------------ tests/qtest/ivshmem-utils.c | 155 ++++++++++++++++++++++++++++++++++++ tests/qtest/ivshmem-utils.h | 56 +++++++++++++ tests/qtest/meson.build | 6 +- 4 files changed, 221 insertions(+), 109 deletions(-) create mode 100644 tests/qtest/ivshmem-utils.c create mode 100644 tests/qtest/ivshmem-utils.h diff --git a/tests/qtest/ivshmem-test.c b/tests/qtest/ivshmem-test.c index 9bf8e78df6..5ce43e2f76 100644 --- a/tests/qtest/ivshmem-test.c +++ b/tests/qtest/ivshmem-test.c @@ -3,17 +3,17 @@ * * Copyright (c) 2014 SUSE LINUX Products GmbH * Copyright (c) 2015 Red Hat, Inc. + * Copyright (c) 2023 Linaro Ltd. * * This work is licensed under the terms of the GNU GPL, version 2 or late= r. * See the COPYING file in the top-level directory. */ =20 -#include "qemu/osdep.h" -#include -#include "contrib/ivshmem-server/ivshmem-server.h" +#include "ivshmem-utils.h" #include "libqos/libqos-pc.h" #include "libqos/libqos-spapr.h" -#include "libqtest.h" + +static ServerThread thread; =20 #define TMPSHMSIZE (1 << 20) static char *tmpshm; @@ -45,13 +45,6 @@ typedef struct _IVState { QPCIDevice *dev; } IVState; =20 -enum Reg { - INTRMASK =3D 0, - INTRSTATUS =3D 4, - IVPOSITION =3D 8, - DOORBELL =3D 12, -}; - static const char* reg2str(enum Reg reg) { switch (reg) { case INTRMASK: @@ -241,54 +234,6 @@ static void test_ivshmem_pair(void) g_free(data); } =20 -typedef struct ServerThread { - GThread *thread; - IvshmemServer *server; - int pipe[2]; /* to handle quit */ -} ServerThread; - -static void *server_thread(void *data) -{ - ServerThread *t =3D data; - IvshmemServer *server =3D t->server; - - while (true) { - fd_set fds; - int maxfd, ret; - - FD_ZERO(&fds); - FD_SET(t->pipe[0], &fds); - maxfd =3D t->pipe[0] + 1; - - ivshmem_server_get_fds(server, &fds, &maxfd); - - ret =3D select(maxfd, &fds, NULL, NULL, NULL); - - if (ret < 0) { - if (errno =3D=3D EINTR) { - continue; - } - - g_critical("select error: %s\n", strerror(errno)); - break; - } - if (ret =3D=3D 0) { - continue; - } - - if (FD_ISSET(t->pipe[0], &fds)) { - break; - } - - if (ivshmem_server_handle_fds(server, &fds, maxfd) < 0) { - g_critical("ivshmem_server_handle_fds() failed\n"); - break; - } - } - - return NULL; -} - static void setup_vm_with_server(IVState *s, int nvectors) { char *cmd; @@ -304,27 +249,12 @@ static void setup_vm_with_server(IVState *s, int nvec= tors) =20 static void test_ivshmem_server(void) { - g_autoptr(GError) err =3D NULL; IVState state1, state2, *s1, *s2; - ServerThread thread; - IvshmemServer server; int ret, vm1, vm2; int nvectors =3D 2; guint64 end_time =3D g_get_monotonic_time() + 5 * G_TIME_SPAN_SECOND; =20 - ret =3D ivshmem_server_init(&server, tmpserver, tmpshm, true, - TMPSHMSIZE, nvectors, - g_test_verbose()); - g_assert_cmpint(ret, =3D=3D, 0); - - ret =3D ivshmem_server_start(&server); - g_assert_cmpint(ret, =3D=3D, 0); - - thread.server =3D &server; - g_unix_open_pipe(thread.pipe, FD_CLOEXEC, &err); - g_assert_no_error(err); - thread.thread =3D g_thread_new("ivshmem-server", server_thread, &threa= d); - g_assert(thread.thread !=3D NULL); + test_ivshmem_server_start(&thread, tmpserver, tmpshm, nvectors); =20 setup_vm_with_server(&state1, nvectors); s1 =3D &state1; @@ -367,15 +297,7 @@ static void test_ivshmem_server(void) cleanup_vm(s2); cleanup_vm(s1); =20 - if (qemu_write_full(thread.pipe[1], "q", 1) !=3D 1) { - g_error("qemu_write_full: %s", g_strerror(errno)); - } - - g_thread_join(thread.thread); - - ivshmem_server_close(&server); - close(thread.pipe[1]); - close(thread.pipe[0]); + test_ivshmem_server_stop(&thread); } =20 static void test_ivshmem_hotplug_q35(void) @@ -454,31 +376,10 @@ static void cleanup(void) =20 static void abrt_handler(void *data) { + test_ivshmem_server_stop(&thread); cleanup(); } =20 -static gchar *mktempshm(int size, int *fd) -{ - while (true) { - gchar *name; - - name =3D g_strdup_printf("/qtest-%u-%u", getpid(), g_test_rand_int= ()); - *fd =3D shm_open(name, O_CREAT|O_RDWR|O_EXCL, - S_IRWXU|S_IRWXG|S_IRWXO); - if (*fd > 0) { - g_assert(ftruncate(*fd, size) =3D=3D 0); - return name; - } - - g_free(name); - - if (errno !=3D EEXIST) { - perror("shm_open"); - return NULL; - } - } -} - int main(int argc, char **argv) { int ret, fd; diff --git a/tests/qtest/ivshmem-utils.c b/tests/qtest/ivshmem-utils.c new file mode 100644 index 0000000000..5fd8bb76ee --- /dev/null +++ b/tests/qtest/ivshmem-utils.c @@ -0,0 +1,155 @@ +/* + * Common utilities for testing ivshmem devices + * + * SPDX-FileCopyrightText: 2012 SUSE LINUX Products GmbH + * SPDX-FileCopyrightText: 2021 Red Hat, Inc. + * SPDX-FileCopyrightText: 2023 Linaro Ltd. + * SPDX-License-Identifier: GPL-2.0-or-later + * + */ + +#include "ivshmem-utils.h" + +gchar *mktempshm(int size, int *fd) +{ + while (true) { + /* Relative path to the shm filesystem, e.g. '/dev/shm'. */ + gchar *shm_rel_path; + + shm_rel_path =3D g_strdup_printf("/ivshmem_qtest-%u-%u", getpid(), + g_test_rand_int()); + *fd =3D shm_open(shm_rel_path, O_CREAT|O_RDWR|O_EXCL, + S_IRWXU|S_IRWXG|S_IRWXO); + if (*fd > 0) { + g_assert(ftruncate(*fd, size) =3D=3D 0); + return shm_rel_path; + } + + g_free(shm_rel_path); + + if (errno !=3D EEXIST) { + perror("shm_open"); + return NULL; + } + } +} + +gchar *mktempsocket(void) +{ + gchar *server_socket_path; + + server_socket_path =3D g_strdup_printf("/tmp/ivshmem_socket_qtest-%u-%= u", + getpid(), g_test_rand_int()); + return server_socket_path; +} + +static void *server_thread(void *data) +{ + ServerThread *t =3D data; + IvshmemServer *server =3D &t->server; + + while (true) { + fd_set fds; + int maxfd, ret; + + FD_ZERO(&fds); + FD_SET(t->pipe[0], &fds); + maxfd =3D t->pipe[0] + 1; + + ivshmem_server_get_fds(server, &fds, &maxfd); + + ret =3D select(maxfd, &fds, NULL, NULL, NULL); + + if (ret < 0) { + if (errno =3D=3D EINTR) { + continue; + } + + g_critical("select error: %s\n", strerror(errno)); + break; + } + if (ret =3D=3D 0) { + continue; + } + + if (FD_ISSET(t->pipe[0], &fds)) { + break; + } + + if (ivshmem_server_handle_fds(server, &fds, maxfd) < 0) { + g_critical("ivshmem_server_handle_fds() failed\n"); + break; + } + } + + return NULL; +} + +void test_ivshmem_server_start(ServerThread *thread, + const char *server_socket_path, + const char *shm_rel_path, unsigned num_vect= ors) +{ + g_autoptr(GError) err =3D NULL; + int ret; + struct stat shm_st; + char *shm_path; + + g_assert(thread !=3D NULL); + g_assert(server_socket_path !=3D NULL); + g_assert_cmpint(num_vectors, >, 0); + g_assert(shm_rel_path !=3D NULL); + + /* + * Find out shm size. shm_open() deals with relative paths but stat() = needs + * the full path to the shm file. + */ + shm_path =3D g_strdup_printf("/dev/shm%s", shm_rel_path); + ret =3D stat(shm_path, &shm_st); + g_assert_cmpint(ret, =3D=3D, 0); + g_assert_cmpint(shm_st.st_size, >, 0); + + ret =3D ivshmem_server_init(&thread->server, server_socket_path, shm_r= el_path, + true, shm_st.st_size, num_vectors, g_test_verbose()); + g_assert_cmpint(ret, =3D=3D, 0); + ret =3D ivshmem_server_start(&thread->server); + g_assert_cmpint(ret, =3D=3D, 0); + thread->status =3D SERVER; + + g_unix_open_pipe(thread->pipe, FD_CLOEXEC, &err); + g_assert_no_error(err); + thread->status |=3D PIPE; + + thread->thread =3D g_thread_new("ivshmem-server", server_thread, threa= d); + g_assert(thread->thread !=3D NULL); + thread->status |=3D THREAD; +} + +void test_ivshmem_server_stop(ServerThread *thread) +{ + /* + * This function can be called any time on a test error/abort (e.g., i= t can + * be called from the abort handler), including from the + * test_ivshmem_server_start(). Therefore, the start steps (server sta= rted, + * pipe created, and thread created) are tracked when the server start= s and + * then checked below accordingly for proper termination. + */ + + if (thread->status & THREAD) { + /* Ask to exit from thread. */ + if (qemu_write_full(thread->pipe[1], "q", 1) !=3D 1) { + g_error("qemu_write_full: %s", g_strerror(errno)); + } + + /* Wait thread to exit. */ + g_thread_join(thread->thread); + } + + if (thread->status & PIPE) { + close(thread->pipe[1]); + close(thread->pipe[0]); + } + + if (thread->status & SERVER) { + ivshmem_server_close(&thread->server); + } +} diff --git a/tests/qtest/ivshmem-utils.h b/tests/qtest/ivshmem-utils.h new file mode 100644 index 0000000000..c43661caac --- /dev/null +++ b/tests/qtest/ivshmem-utils.h @@ -0,0 +1,56 @@ +/* + * Common utilities for testing ivshmem devices + * + * SPDX-FileCopyrightText: 2012 SUSE LINUX Products GmbH + * SPDX-FileCopyrightText: 2021 Red Hat, Inc. + * SPDX-FileCopyrightText: 2023 Linaro Ltd. + * SPDX-License-Identifier: GPL-2.0-or-later + * + */ + +#ifndef QTEST_IVSHMEM_UTILS_H +#define QTEST_IVSHMEM_UTILS_H + +#include "qemu/osdep.h" +#include +#include "contrib/ivshmem-server/ivshmem-server.h" +#include "libqtest.h" + +enum Reg { + INTRMASK =3D 0, + INTRSTATUS =3D 4, + IVPOSITION =3D 8, + DOORBELL =3D 12, +}; + +enum ServerStartStatus { + SERVER =3D 1, /* Ivshmem server started */ + THREAD =3D 2, /* Thread for monitoring fds created */ + PIPE =3D 4, /* Pipe created */ +}; + +typedef struct ServerThread { + GThread *thread; + IvshmemServer server; + /* + * Pipe is used to communicate with the thread, asking it to terminate= on + * receiving 'q'. + */ + int pipe[2]; + /* + * Server statuses are used to keep track of thread/server/pipe start = since + * test_ivshmem_server_stop can be called at any time on a test error, + * even from test_ivshmem_server_start itself, therefore, they are use= d for + * proper service termination. + */ + enum ServerStartStatus status; +} ServerThread; + +gchar *mktempshm(int size, int *fd); +gchar *mktempsocket(void); +void test_ivshmem_server_start(ServerThread *thread, + const char *server_socket_path, + const char *shm_rel_path, unsigned num_vect= ors); +void test_ivshmem_server_stop(ServerThread *thread); + +#endif /* QTEST_IVSHMEM_UTILS_H */ diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index b071d400b3..b6c4ca937c 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -55,9 +55,9 @@ qtests_i386 =3D \ (config_all_devices.has_key('CONFIG_PVPANIC_ISA') ? ['pvpanic-test'] : [= ]) + \ (config_all_devices.has_key('CONFIG_PVPANIC_PCI') ? ['pvpanic-pci-test']= : []) + \ (config_all_devices.has_key('CONFIG_HDA') ? ['intel-hda-test'] : []) + = \ - (config_all_devices.has_key('CONFIG_I82801B11') ? ['i82801b11-test'] : [= ]) + \ + (config_all_devices.has_key('CONFIG_I82801B11') ? ['i82801b11-test'] : [= ]) + \ (config_all_devices.has_key('CONFIG_IOH3420') ? ['ioh3420-test'] : []) += \ - (config_all_devices.has_key('CONFIG_LPC_ICH9') ? ['lpc-ich9-test'] : [])= + \ + (config_all_devices.has_key('CONFIG_LPC_ICH9') ? ['lpc-ich9-test'] : [])= + \ (config_all_devices.has_key('CONFIG_USB_UHCI') ? ['usb-hcd-uhci-test'] := []) + \ (config_all_devices.has_key('CONFIG_USB_UHCI') and = \ config_all_devices.has_key('CONFIG_USB_EHCI') ? ['usb-hcd-ehci-test'] := []) + \ @@ -305,7 +305,7 @@ qtests =3D { 'cdrom-test': files('boot-sector.c'), 'dbus-vmstate-test': files('migration-helpers.c') + dbus_vmstate1, 'erst-test': files('erst-test.c'), - 'ivshmem-test': [rt, '../../contrib/ivshmem-server/ivshmem-server.c'], + 'ivshmem-test': ['ivshmem-utils.c', '../../contrib/ivshmem-server/ivshme= m-server.c'], 'migration-test': migration_files, 'pxe-test': files('boot-sector.c'), 'qos-test': [chardev, io, qos_test_ss.apply(config_host, strict: false).= sources()], --=20 2.34.1