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Wed, 21 Jun 2023 18:55:51 -0500 From: Suravee Suthikulpanit To: , , CC: , , , , , , , , , , , , , , , "Suravee Suthikulpanit" Subject: [RFC PATCH 10/21] iommu/amd: Introduce vIOMMU-specific events and event info Date: Wed, 21 Jun 2023 18:54:57 -0500 Message-ID: <20230621235508.113949-11-suravee.suthikulpanit@amd.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230621235508.113949-1-suravee.suthikulpanit@amd.com> References: <20230621235508.113949-1-suravee.suthikulpanit@amd.com> MIME-Version: 1.0 X-Originating-IP: [10.180.168.240] X-ClientProxiedBy: SATLEXMB03.amd.com (10.181.40.144) To SATLEXMB04.amd.com (10.181.40.145) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: CY4PEPF0000E9D4:EE_|CY8PR12MB7337:EE_ X-MS-Office365-Filtering-Correlation-Id: 1a412335-fbd6-45bd-5fd5-08db72b30cd5 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230028)(4636009)(39860400002)(396003)(136003)(376002)(346002)(451199021)(40470700004)(36840700001)(46966006)(54906003)(7696005)(478600001)(110136005)(70206006)(70586007)(16526019)(26005)(186003)(1076003)(2906002)(82310400005)(8676002)(4326008)(41300700001)(5660300002)(44832011)(8936002)(7416002)(316002)(356005)(81166007)(82740400003)(86362001)(36756003)(40460700003)(47076005)(336012)(83380400001)(2616005)(36860700001)(40480700001)(426003)(36900700001);DIR:OUT;SFP:1101; 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Signed-off-by: Suravee Suthikulpanit --- drivers/iommu/amd/amd_iommu_types.h | 3 ++ drivers/iommu/amd/iommu.c | 58 ++++++++++++++++++++++------- 2 files changed, 48 insertions(+), 13 deletions(-) diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h index 8830f511bee4..d832e0c36a21 100644 --- a/drivers/iommu/amd/amd_iommu_types.h +++ b/drivers/iommu/amd/amd_iommu_types.h @@ -145,6 +145,9 @@ #define EVENT_TYPE_IOTLB_INV_TO 0x7 #define EVENT_TYPE_INV_DEV_REQ 0x8 #define EVENT_TYPE_INV_PPR_REQ 0x9 +#define EVENT_TYPE_GUEST_EVENT_FAULT 0xb +#define EVENT_TYPE_VIOMMU_HW_ERR 0xc + #define EVENT_TYPE_RMP_FAULT 0xd #define EVENT_TYPE_RMP_HW_ERR 0xe #define EVENT_DEVID_MASK 0xffff diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index 4a42af85664e..efced59ba8a5 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -541,7 +541,7 @@ static void amd_iommu_report_rmp_fault(struct amd_iommu *iommu, volatile u32 *ev static void amd_iommu_report_page_fault(struct amd_iommu *iommu, u16 devid, u16 domain_id, - u64 address, int flags) + u64 address, int flags, u8 vflags) { struct iommu_dev_data *dev_data = NULL; struct pci_dev *pdev; @@ -576,13 +576,13 @@ static void amd_iommu_report_page_fault(struct amd_iommu *iommu, } if (__ratelimit(&dev_data->rs)) { - pci_err(pdev, "Event logged [IO_PAGE_FAULT domain=0x%04x address=0x%llx flags=0x%04x]\n", - domain_id, address, flags); + pci_err(pdev, "Event logged [IO_PAGE_FAULT domain=0x%04x address=0x%llx flags=0x%04x vflags=%#x]\n", + domain_id, address, flags, vflags); } } else { - pr_err_ratelimited("Event logged [IO_PAGE_FAULT device=%04x:%02x:%02x.%x domain=0x%04x address=0x%llx flags=0x%04x]\n", + pr_err_ratelimited("Event logged [IO_PAGE_FAULT device=%04x:%02x:%02x.%x domain=0x%04x address=0x%llx flags=0x%04x vflags=%#x]\n", iommu->pci_seg->id, PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid), - domain_id, address, flags); + domain_id, address, flags, vflags); } out: @@ -618,28 +618,41 @@ static void iommu_print_event(struct amd_iommu *iommu, void *__evt) } if (type == EVENT_TYPE_IO_FAULT) { - amd_iommu_report_page_fault(iommu, devid, pasid, address, flags); + u8 vflags = (event[0] >> 27) & 0x1F; + + amd_iommu_report_page_fault(iommu, devid, pasid, address, flags, vflags); return; } switch (type) { case EVENT_TYPE_ILL_DEV: - dev_err(dev, "Event logged [ILLEGAL_DEV_TABLE_ENTRY device=%04x:%02x:%02x.%x pasid=0x%05x address=0x%llx flags=0x%04x]\n", + { + u8 vflags = (event[0] >> 27) & 0x1F; + + dev_err(dev, "Event logged [ILLEGAL_DEV_TABLE_ENTRY deice=%04x:%02x:%02x.%x pasid=0x%05x address=0x%llx flags=0x%04x vflags=%#x]\n", iommu->pci_seg->id, PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid), - pasid, address, flags); + pasid, address, flags, vflags); dump_dte_entry(iommu, devid); break; + } case EVENT_TYPE_DEV_TAB_ERR: - dev_err(dev, "Event logged [DEV_TAB_HARDWARE_ERROR device=%04x:%02x:%02x.%x " - "address=0x%llx flags=0x%04x]\n", + { + u8 vflags = (event[0] >> 27) & 0x1F; + + dev_err(dev, "Event logged [DEV_TAB_HARDWARE_ERROR device=%04x:%02x:%02x.%x address=%#llx flags=%#04x vlfags=%#x]\n", iommu->pci_seg->id, PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid), - address, flags); + address, flags, vflags); break; + } case EVENT_TYPE_PAGE_TAB_ERR: - dev_err(dev, "Event logged [PAGE_TAB_HARDWARE_ERROR device=%04x:%02x:%02x.%x pasid=0x%04x address=0x%llx flags=0x%04x]\n", + { + u8 vflags = (event[0] >> 27) & 0x1F; + + dev_err(dev, "Event logged [PAGE_TAB_HARDWARE_ERROR device=%04x:%02x:%02x.%x pasid=0x%04x address=0x%llx flags=0x%04x vflags=%#x]\n", iommu->pci_seg->id, PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid), - pasid, address, flags); + pasid, address, flags, vflags); break; + } case EVENT_TYPE_ILL_CMD: dev_err(dev, "Event logged [ILLEGAL_COMMAND_ERROR address=0x%llx]\n", address); dump_command(address); @@ -671,6 +684,25 @@ static void iommu_print_event(struct amd_iommu *iommu, void *__evt) iommu->pci_seg->id, PCI_BUS_NUM(devid), PCI_SLOT(devid), PCI_FUNC(devid), pasid, address, flags, tag); break; + case EVENT_TYPE_GUEST_EVENT_FAULT: + { + u8 gid = event[1] & 0xFFFF; + u8 vflags = (event[0] >> 27) & 0x1F; + + dev_err(dev, "Event logged [GUEST_EVENT_FAULT gid=#%x flags=0x%04x vflags=%#x]\n", + gid, flags, vflags); + break; + } + case EVENT_TYPE_VIOMMU_HW_ERR: + { + u16 gid = event[0] & 0xFFFF; + u8 src = (event[0] >> 16) & 0x3; + u8 vflags = (event[0] >> 27) & 0x1F; + + dev_err(dev, "Event logged [VIOMMU_HW_ERR gid=%#x address=%#llx src=%#x flags=%#x vflags=%#x]\n", + gid, address, src, flags, vflags); + break; + } default: dev_err(dev, "Event logged [UNKNOWN event[0]=0x%08x event[1]=0x%08x event[2]=0x%08x event[3]=0x%08x\n", event[0], event[1], event[2], event[3]);