diff options
| author | Jason Wang <jasowang@redhat.com> | 2022-02-10 17:28:15 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-05-16 04:38:40 -0400 |
| commit | ea97a1bde7b7940bb2100b645b6f1abc7330e248 (patch) | |
| tree | 16b7452a9467234924992679d0fccb3c636cccf8 /hw/i386/intel_iommu_internal.h | |
| parent | a48a5bcd641773dca66840908d2c6d9552e3d1c6 (diff) | |
intel-iommu: block output address in interrupt address range
According to vtd spec v3.3 3.14:
"""
Software must not program paging-structure entries to remap any
address to the interrupt address range. Untranslated requests and
translation requests that result in an address in the interrupt range
will be blocked with condition code LGN.4 or SGN.8.
"""
This patch blocks the request that result in interrupt address range.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20220210092815.45174-2-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Diffstat (limited to 'hw/i386/intel_iommu_internal.h')
| -rw-r--r-- | hw/i386/intel_iommu_internal.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/hw/i386/intel_iommu_internal.h b/hw/i386/intel_iommu_internal.h index b6a2da8e83..930ce61feb 100644 --- a/hw/i386/intel_iommu_internal.h +++ b/hw/i386/intel_iommu_internal.h @@ -289,6 +289,8 @@ typedef enum VTDFaultReason { * context-entry. */ VTD_FR_CONTEXT_ENTRY_TT, + /* Output address in the interrupt address range */ + VTD_FR_INTERRUPT_ADDR = 0xE, /* Interrupt remapping transition faults */ VTD_FR_IR_REQ_RSVD = 0x20, /* One or more IR request reserved @@ -304,6 +306,8 @@ typedef enum VTDFaultReason { VTD_FR_PASID_TABLE_INV = 0x58, /*Invalid PASID table entry */ + /* Output address in the interrupt address range for scalable mode */ + VTD_FR_SM_INTERRUPT_ADDR = 0x87, VTD_FR_MAX, /* Guard */ } VTDFaultReason; |