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Tsirkin" Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-cxl@vger.kernel.org, qemu-devel@nongnu.org Subject: [PATCH v2 1/4] hw/cxl: fix build error in cxl_type3_stubs.c Date: Fri, 22 Dec 2023 18:00:48 +0900 Message-Id: <20231222090051.3265307-2-42.hyeyoo@gmail.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20231222090051.3265307-1-42.hyeyoo@gmail.com> References: <20231222090051.3265307-1-42.hyeyoo@gmail.com> 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=2607:f8b0:4864:20::42b; envelope-from=42.hyeyoo@gmail.com; helo=mail-pf1-x42b.google.com X-Spam_score_int: 0 X-Spam_score: -0.1 X-Spam_bar: / X-Spam_report: (-0.1 / 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, FREEMAIL_FROM=0.001, HK_RANDOM_ENVFROM=0.999, HK_RANDOM_FROM=0.999, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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 @gmail.com) X-ZM-MESSAGEID: 1703235734844100002 Content-Type: text/plain; charset="utf-8" Fix build errors in cxl_type3_stubs.c due to a the incorrect definition of the qmp_cxl_{add,release}_dynamic_capacity functions. Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> --- hw/mem/cxl_type3_stubs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/hw/mem/cxl_type3_stubs.c b/hw/mem/cxl_type3_stubs.c index 1b54ec028c..d913b11b4d 100644 --- a/hw/mem/cxl_type3_stubs.c +++ b/hw/mem/cxl_type3_stubs.c @@ -68,14 +68,14 @@ void qmp_cxl_inject_correctable_error(const char *path,= CxlCorErrorType type, error_setg(errp, "CXL Type 3 support is not compiled in"); } =20 -void qmp_cxl_add_dynamic_capacity(const char *path, +void qmp_cxl_add_dynamic_capacity(const char *path, uint8_t region_id, CXLDCExtentRecordList *records, Error **errp) { error_setg(errp, "CXL Type 3 support is not compiled in"); } =20 -void qmp_cxl_release_dynamic_capacity(const char *path, +void qmp_cxl_release_dynamic_capacity(const char *path, uint8_t region_id, CXLDCExtentRecordList *records, Error **errp) { --=20 2.39.3 From nobody Fri May 17 08:25:12 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; 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Tsirkin" Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-cxl@vger.kernel.org, qemu-devel@nongnu.org Subject: [PATCH v2 2/4] hw/cxl/device: read from register values in mdev_reg_read() Date: Fri, 22 Dec 2023 18:00:49 +0900 Message-Id: <20231222090051.3265307-3-42.hyeyoo@gmail.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20231222090051.3265307-1-42.hyeyoo@gmail.com> References: <20231222090051.3265307-1-42.hyeyoo@gmail.com> 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=2607:f8b0:4864:20::434; envelope-from=42.hyeyoo@gmail.com; helo=mail-pf1-x434.google.com X-Spam_score_int: 0 X-Spam_score: -0.1 X-Spam_bar: / X-Spam_report: (-0.1 / 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, FREEMAIL_FROM=0.001, HK_RANDOM_ENVFROM=0.999, HK_RANDOM_FROM=0.999, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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 @gmail.com) X-ZM-MESSAGEID: 1703235715123100003 Content-Type: text/plain; charset="utf-8" In the current mdev_reg_read() implementation, it consistently returns that the Media Status is Ready (01b). This was fine until commit 25a52959f99d ("hw/cxl: Add support for device sanitation") because the media was presumed to be ready. However, as per the CXL 3.0 spec "8.2.9.8.5.1 Sanitize (Opcode 4400h)", during sanitation, the Media State should be set to Disabled (11b). The mentioned commit correctly sets it to Disabled, but mdev_reg_read() still returns Media Status as Ready. To address this, update mdev_reg_read() to read register values instead of returning dummy values. Fixes: commit 25a52959f99d ("hw/cxl: Add support for device sanitation") Reviewed-by: Davidlohr Bueso Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> --- hw/cxl/cxl-device-utils.c | 17 +++++++++++------ include/hw/cxl/cxl_device.h | 4 +++- 2 files changed, 14 insertions(+), 7 deletions(-) diff --git a/hw/cxl/cxl-device-utils.c b/hw/cxl/cxl-device-utils.c index 29de298117..ba3f80e6e7 100644 --- a/hw/cxl/cxl-device-utils.c +++ b/hw/cxl/cxl-device-utils.c @@ -229,12 +229,9 @@ static void mailbox_reg_write(void *opaque, hwaddr off= set, uint64_t value, =20 static uint64_t mdev_reg_read(void *opaque, hwaddr offset, unsigned size) { - uint64_t retval =3D 0; - - retval =3D FIELD_DP64(retval, CXL_MEM_DEV_STS, MEDIA_STATUS, 1); - retval =3D FIELD_DP64(retval, CXL_MEM_DEV_STS, MBOX_READY, 1); + CXLDeviceState *cxl_dstate =3D opaque; =20 - return retval; + return cxl_dstate->mbox_reg_state64[R_CXL_MEM_DEV_STS]; } =20 static void ro_reg_write(void *opaque, hwaddr offset, uint64_t value, @@ -371,7 +368,15 @@ static void mailbox_reg_init_common(CXLDeviceState *cx= l_dstate) cxl_dstate->mbox_msi_n =3D msi_n; } =20 -static void memdev_reg_init_common(CXLDeviceState *cxl_dstate) { } +static void memdev_reg_init_common(CXLDeviceState *cxl_dstate) +{ + uint64_t memdev_status_reg; + + memdev_status_reg =3D FIELD_DP64(0, CXL_MEM_DEV_STS, MEDIA_STATUS, 1); + memdev_status_reg =3D FIELD_DP64(memdev_status_reg, CXL_MEM_DEV_STS, + MBOX_READY, 1); + cxl_dstate->mbox_reg_state64[R_CXL_MEM_DEV_STS] =3D memdev_status_reg; +} =20 void cxl_device_register_init_t3(CXLType3Dev *ct3d) { diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h index b2cb280e16..b318d94b36 100644 --- a/include/hw/cxl/cxl_device.h +++ b/include/hw/cxl/cxl_device.h @@ -408,7 +408,9 @@ static inline void __toggle_media(CXLDeviceState *cxl_d= state, int val) { uint64_t dev_status_reg; =20 - dev_status_reg =3D FIELD_DP64(0, CXL_MEM_DEV_STS, MEDIA_STATUS, val); + dev_status_reg =3D cxl_dstate->mbox_reg_state64[R_CXL_MEM_DEV_STS]; + dev_status_reg =3D FIELD_DP64(dev_status_reg, CXL_MEM_DEV_STS, MEDIA_S= TATUS, + val); cxl_dstate->mbox_reg_state64[R_CXL_MEM_DEV_STS] =3D dev_status_reg; } #define cxl_dev_disable_media(cxlds) \ --=20 2.39.3 From nobody Fri May 17 08:25:12 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=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1703235721; cv=none; d=zohomail.com; s=zohoarc; b=BUxdIImvwjlqPLYn1lFBv6/XWu3aaTnspWemkROwzAW004MYn5FpubF08RxIlx259VoovwmVt9qWrZaC8FNu7J9ybnaGndicXFrnz1pg2wiUpiqasAhTzcmiuSQsJ3QZ4To9PM1Xn/dBJ0K+1ho58nvOLBIAIuuvjlb5yUNLbMA= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1703235721; h=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=Pze2Cv/T1AorC9TH3ggyhouTOliDmqm2cL056dpXiT8=; 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Fri, 22 Dec 2023 01:01:08 -0800 (PST) From: Hyeonggon Yoo <42.hyeyoo@gmail.com> To: Jonathan Cameron , Davidlohr Bueso , Fan Ni , "Michael S . Tsirkin" Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-cxl@vger.kernel.org, qemu-devel@nongnu.org Subject: [PATCH v2 3/4] hw/cxl/mbox: replace sanitize_running() with cxl_dev_media_disabled() Date: Fri, 22 Dec 2023 18:00:50 +0900 Message-Id: <20231222090051.3265307-4-42.hyeyoo@gmail.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20231222090051.3265307-1-42.hyeyoo@gmail.com> References: <20231222090051.3265307-1-42.hyeyoo@gmail.com> 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=2607:f8b0:4864:20::529; envelope-from=42.hyeyoo@gmail.com; helo=mail-pg1-x529.google.com X-Spam_score_int: 0 X-Spam_score: -0.1 X-Spam_bar: / X-Spam_report: (-0.1 / 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, FREEMAIL_FROM=0.001, HK_RANDOM_ENVFROM=0.999, HK_RANDOM_FROM=0.999, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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 @gmail.com) X-ZM-MESSAGEID: 1703235722830100007 Content-Type: text/plain; charset="utf-8" The spec states that reads/writes should have no effect and a part of commands should be ignored when the media is disabled, not when the sanitize command is running. Introduce cxl_dev_media_disabled() to check if the media is disabled and replace sanitize_running() with it. Make sure that the media has been correctly disabled during sanitation by adding an assert to __toggle_media(). Now, enabling when already enabled or vice versa results in an assert() failure. Suggested-by: Davidlohr Bueso Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> --- hw/cxl/cxl-mailbox-utils.c | 6 ++++-- hw/mem/cxl_type3.c | 4 ++-- include/hw/cxl/cxl_device.h | 11 ++++++----- 3 files changed, 12 insertions(+), 9 deletions(-) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index 11ec8b648b..efeb5f8174 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -2248,6 +2248,8 @@ int cxl_process_cci_message(CXLCCI *cci, uint8_t set,= uint8_t cmd, int ret; const struct cxl_cmd *cxl_cmd; opcode_handler h; + CXLDeviceState *cxl_dstate =3D &CXL_TYPE3(cci->intf)->cxl_dstate; + =20 *len_out =3D 0; cxl_cmd =3D &cci->cxl_cmd_set[set][cmd]; @@ -2268,8 +2270,8 @@ int cxl_process_cci_message(CXLCCI *cci, uint8_t set,= uint8_t cmd, return CXL_MBOX_BUSY; } =20 - /* forbid any selected commands while overwriting */ - if (sanitize_running(cci)) { + /* forbid any selected commands while the media is disabled */ + if (cxl_dev_media_disabled(cxl_dstate)) { if (h =3D=3D cmd_events_get_records || h =3D=3D cmd_ccls_get_partition_info || h =3D=3D cmd_ccls_set_lsa || diff --git a/hw/mem/cxl_type3.c b/hw/mem/cxl_type3.c index 85fc08f118..ecb525a608 100644 --- a/hw/mem/cxl_type3.c +++ b/hw/mem/cxl_type3.c @@ -1286,7 +1286,7 @@ MemTxResult cxl_type3_read(PCIDevice *d, hwaddr host_= addr, uint64_t *data, return MEMTX_ERROR; } =20 - if (sanitize_running(&ct3d->cci)) { + if (cxl_dev_media_disabled(&ct3d->cxl_dstate)) { qemu_guest_getrandom_nofail(data, size); return MEMTX_OK; } @@ -1314,7 +1314,7 @@ MemTxResult cxl_type3_write(PCIDevice *d, hwaddr host= _addr, uint64_t data, return MEMTX_ERROR; } =20 - if (sanitize_running(&ct3d->cci)) { + if (cxl_dev_media_disabled(&ct3d->cxl_dstate)) { return MEMTX_OK; } =20 diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h index b318d94b36..5618061ebe 100644 --- a/include/hw/cxl/cxl_device.h +++ b/include/hw/cxl/cxl_device.h @@ -411,6 +411,7 @@ static inline void __toggle_media(CXLDeviceState *cxl_d= state, int val) dev_status_reg =3D cxl_dstate->mbox_reg_state64[R_CXL_MEM_DEV_STS]; dev_status_reg =3D FIELD_DP64(dev_status_reg, CXL_MEM_DEV_STS, MEDIA_S= TATUS, val); + assert(dev_status_reg !=3D cxl_dstate->mbox_reg_state64[R_CXL_MEM_DEV_= STS]); cxl_dstate->mbox_reg_state64[R_CXL_MEM_DEV_STS] =3D dev_status_reg; } #define cxl_dev_disable_media(cxlds) \ @@ -418,14 +419,14 @@ static inline void __toggle_media(CXLDeviceState *cxl= _dstate, int val) #define cxl_dev_enable_media(cxlds) \ do { __toggle_media((cxlds), 0x1); } while (0) =20 -static inline bool scan_media_running(CXLCCI *cci) +static inline bool cxl_dev_media_disabled(CXLDeviceState *cxl_dstate) { - return !!cci->bg.runtime && cci->bg.opcode =3D=3D 0x4304; + uint64_t dev_status_reg =3D cxl_dstate->mbox_reg_state64[R_CXL_MEM_DEV= _STS]; + return FIELD_EX64(dev_status_reg, CXL_MEM_DEV_STS, MEDIA_STATUS) =3D= =3D 0x3; } - -static inline bool sanitize_running(CXLCCI *cci) +static inline bool scan_media_running(CXLCCI *cci) { - return !!cci->bg.runtime && cci->bg.opcode =3D=3D 0x4400; + return !!cci->bg.runtime && cci->bg.opcode =3D=3D 0x4304; } =20 typedef struct CXLError { --=20 2.39.3 From nobody Fri May 17 08:25:12 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=gmail.com ARC-Seal: i=1; a=rsa-sha256; t=1703235718; 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Tsirkin" Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>, linux-cxl@vger.kernel.org, qemu-devel@nongnu.org Subject: [PATCH v2 4/4] hw/cxl/events: discard all event records during sanitation Date: Fri, 22 Dec 2023 18:00:51 +0900 Message-Id: <20231222090051.3265307-5-42.hyeyoo@gmail.com> X-Mailer: git-send-email 2.39.3 In-Reply-To: <20231222090051.3265307-1-42.hyeyoo@gmail.com> References: <20231222090051.3265307-1-42.hyeyoo@gmail.com> 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=2607:f8b0:4864:20::42c; envelope-from=42.hyeyoo@gmail.com; helo=mail-pf1-x42c.google.com X-Spam_score_int: 0 X-Spam_score: -0.1 X-Spam_bar: / X-Spam_report: (-0.1 / 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, FREEMAIL_FROM=0.001, HK_RANDOM_ENVFROM=0.999, HK_RANDOM_FROM=0.999, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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 @gmail.com) X-ZM-MESSAGEID: 1703235720865100003 Content-Type: text/plain; charset="utf-8" Per spec 8.2.9.9.5.1 Sanitize (Opcode 4400h), sanitize command should delete all event logs. Introduce cxl_discard_all_event_logs() and call this in __do_sanitization(). Signed-off-by: Hyeonggon Yoo <42.hyeyoo@gmail.com> Reviewed-by: Davidlohr Bueso --- hw/cxl/cxl-events.c | 13 +++++++++++++ hw/cxl/cxl-mailbox-utils.c | 1 + include/hw/cxl/cxl_device.h | 1 + 3 files changed, 15 insertions(+) diff --git a/hw/cxl/cxl-events.c b/hw/cxl/cxl-events.c index bee6dfaf14..837b18ab47 100644 --- a/hw/cxl/cxl-events.c +++ b/hw/cxl/cxl-events.c @@ -141,6 +141,19 @@ bool cxl_event_insert(CXLDeviceState *cxlds, CXLEventL= ogType log_type, return cxl_event_count(log) =3D=3D 1; } =20 +void cxl_discard_all_event_records(CXLDeviceState *cxlds) +{ + CXLEventLogType log_type; + CXLEventLog *log; + + for (log_type =3D 0; log_type < CXL_EVENT_TYPE_MAX; log_type++) { + log =3D &cxlds->event_logs[log_type]; + while (!cxl_event_empty(log)) { + cxl_event_delete_head(cxlds, log_type, log); + } + } +} + CXLRetCode cxl_event_get_records(CXLDeviceState *cxlds, CXLGetEventPayload= *pl, uint8_t log_type, int max_recs, size_t *len) diff --git a/hw/cxl/cxl-mailbox-utils.c b/hw/cxl/cxl-mailbox-utils.c index efeb5f8174..2ade351d82 100644 --- a/hw/cxl/cxl-mailbox-utils.c +++ b/hw/cxl/cxl-mailbox-utils.c @@ -1150,6 +1150,7 @@ static void __do_sanitization(CXLType3Dev *ct3d) memset(lsa, 0, memory_region_size(mr)); } } + cxl_discard_all_event_records(&ct3d->cxl_dstate); } =20 /* diff --git a/include/hw/cxl/cxl_device.h b/include/hw/cxl/cxl_device.h index 5618061ebe..8f05dd9beb 100644 --- a/include/hw/cxl/cxl_device.h +++ b/include/hw/cxl/cxl_device.h @@ -604,6 +604,7 @@ CXLRetCode cxl_event_get_records(CXLDeviceState *cxlds,= CXLGetEventPayload *pl, size_t *len); CXLRetCode cxl_event_clear_records(CXLDeviceState *cxlds, CXLClearEventPayload *pl); +void cxl_discard_all_event_records(CXLDeviceState *cxlds); =20 void cxl_event_irq_assert(CXLType3Dev *ct3d); =20 --=20 2.39.3