diff options
Diffstat (limited to 'drivers/iommu/dmar.c')
| -rw-r--r-- | drivers/iommu/dmar.c | 77 |
1 files changed, 73 insertions, 4 deletions
diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c index 5d0754ed5fa0..eecd6a421667 100644 --- a/drivers/iommu/dmar.c +++ b/drivers/iommu/dmar.c @@ -1519,6 +1519,64 @@ static const char *dma_remap_fault_reasons[] = "PCE for translation request specifies blocking", }; +static const char * const dma_remap_sm_fault_reasons[] = { + "SM: Invalid Root Table Address", + "SM: TTM 0 for request with PASID", + "SM: TTM 0 for page group request", + "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", /* 0x33-0x37 */ + "SM: Error attempting to access Root Entry", + "SM: Present bit in Root Entry is clear", + "SM: Non-zero reserved field set in Root Entry", + "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", /* 0x3B-0x3F */ + "SM: Error attempting to access Context Entry", + "SM: Present bit in Context Entry is clear", + "SM: Non-zero reserved field set in the Context Entry", + "SM: Invalid Context Entry", + "SM: DTE field in Context Entry is clear", + "SM: PASID Enable field in Context Entry is clear", + "SM: PASID is larger than the max in Context Entry", + "SM: PRE field in Context-Entry is clear", + "SM: RID_PASID field error in Context-Entry", + "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", /* 0x49-0x4F */ + "SM: Error attempting to access the PASID Directory Entry", + "SM: Present bit in Directory Entry is clear", + "SM: Non-zero reserved field set in PASID Directory Entry", + "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", /* 0x53-0x57 */ + "SM: Error attempting to access PASID Table Entry", + "SM: Present bit in PASID Table Entry is clear", + "SM: Non-zero reserved field set in PASID Table Entry", + "SM: Invalid Scalable-Mode PASID Table Entry", + "SM: ERE field is clear in PASID Table Entry", + "SM: SRE field is clear in PASID Table Entry", + "Unknown", "Unknown",/* 0x5E-0x5F */ + "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", /* 0x60-0x67 */ + "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", /* 0x68-0x6F */ + "SM: Error attempting to access first-level paging entry", + "SM: Present bit in first-level paging entry is clear", + "SM: Non-zero reserved field set in first-level paging entry", + "SM: Error attempting to access FL-PML4 entry", + "SM: First-level entry address beyond MGAW in Nested translation", + "SM: Read permission error in FL-PML4 entry in Nested translation", + "SM: Read permission error in first-level paging entry in Nested translation", + "SM: Write permission error in first-level paging entry in Nested translation", + "SM: Error attempting to access second-level paging entry", + "SM: Read/Write permission error in second-level paging entry", + "SM: Non-zero reserved field set in second-level paging entry", + "SM: Invalid second-level page table pointer", + "SM: A/D bit update needed in second-level entry when set up in no snoop", + "Unknown", "Unknown", "Unknown", /* 0x7D-0x7F */ + "SM: Address in first-level translation is not canonical", + "SM: U/S set 0 for first-level translation with user privilege", + "SM: No execute permission for request with PASID and ER=1", + "SM: Address beyond the DMA hardware max", + "SM: Second-level entry address beyond the max", + "SM: No write permission for Write/AtomicOp request", + "SM: No read permission for Read/AtomicOp request", + "SM: Invalid address-interrupt address", + "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", "Unknown", /* 0x88-0x8F */ + "SM: A/D bit update needed in first-level entry when set up in no snoop", +}; + static const char *irq_remap_fault_reasons[] = { "Detected reserved fields in the decoded interrupt-remapped request", @@ -1536,6 +1594,10 @@ static const char *dmar_get_fault_reason(u8 fault_reason, int *fault_type) ARRAY_SIZE(irq_remap_fault_reasons))) { *fault_type = INTR_REMAP; return irq_remap_fault_reasons[fault_reason - 0x20]; + } else if (fault_reason >= 0x30 && (fault_reason - 0x30 < + ARRAY_SIZE(dma_remap_sm_fault_reasons))) { + *fault_type = DMA_REMAP; + return dma_remap_sm_fault_reasons[fault_reason - 0x30]; } else if (fault_reason < ARRAY_SIZE(dma_remap_fault_reasons)) { *fault_type = DMA_REMAP; return dma_remap_fault_reasons[fault_reason]; @@ -1611,7 +1673,8 @@ void dmar_msi_read(int irq, struct msi_msg *msg) } static int dmar_fault_do_one(struct intel_iommu *iommu, int type, - u8 fault_reason, u16 source_id, unsigned long long addr) + u8 fault_reason, int pasid, u16 source_id, + unsigned long long addr) { const char *reason; int fault_type; @@ -1624,10 +1687,11 @@ static int dmar_fault_do_one(struct intel_iommu *iommu, int type, PCI_FUNC(source_id & 0xFF), addr >> 48, fault_reason, reason); else - pr_err("[%s] Request device [%02x:%02x.%d] fault addr %llx [fault reason %02d] %s\n", + pr_err("[%s] Request device [%02x:%02x.%d] PASID %x fault addr %llx [fault reason %02d] %s\n", type ? "DMA Read" : "DMA Write", source_id >> 8, PCI_SLOT(source_id & 0xFF), - PCI_FUNC(source_id & 0xFF), addr, fault_reason, reason); + PCI_FUNC(source_id & 0xFF), pasid, addr, + fault_reason, reason); return 0; } @@ -1659,8 +1723,9 @@ irqreturn_t dmar_fault(int irq, void *dev_id) u8 fault_reason; u16 source_id; u64 guest_addr; - int type; + int type, pasid; u32 data; + bool pasid_present; /* highest 32 bits */ data = readl(iommu->reg + reg + @@ -1672,10 +1737,12 @@ irqreturn_t dmar_fault(int irq, void *dev_id) fault_reason = dma_frcd_fault_reason(data); type = dma_frcd_type(data); + pasid = dma_frcd_pasid_value(data); data = readl(iommu->reg + reg + fault_index * PRIMARY_FAULT_REG_LEN + 8); source_id = dma_frcd_source_id(data); + pasid_present = dma_frcd_pasid_present(data); guest_addr = dmar_readq(iommu->reg + reg + fault_index * PRIMARY_FAULT_REG_LEN); guest_addr = dma_frcd_page_addr(guest_addr); @@ -1688,7 +1755,9 @@ irqreturn_t dmar_fault(int irq, void *dev_id) raw_spin_unlock_irqrestore(&iommu->register_lock, flag); if (!ratelimited) + /* Using pasid -1 if pasid is not present */ dmar_fault_do_one(iommu, type, fault_reason, + pasid_present ? pasid : -1, source_id, guest_addr); fault_index++; |