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intel-iommu: add supports for queued invalidation interface

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Add supports for queued invalidation interface, an expended invalidation
interface with extended capabilities.

Signed-off-by: Le Tan <tamlokveer@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Le Tan 2014-08-16 13:55:42 +08:00 • committed by Michael S. Tsirkin
parent ac40aa1540
commit ed7b8fbcfb
2 changed files with 393 additions and 7 deletions
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27
hw/i386/intel_iommu_internal.h
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@ -255,12 +255,27 @@ typedef enum VTDFaultReason {
VTD_FR_MAX, /* Guard */
} VTDFaultReason;
/* Masks for Queued Invalidation Descriptor */
#define VTD_INV_DESC_TYPE 0xf
#define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */
#define VTD_INV_DESC_IOTLB 0x2
#define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */
#define VTD_INV_DESC_NONE 0 /* Not an Invalidate Descriptor */
/* Queued Invalidation Descriptor */
struct VTDInvDesc {
uint64_t lo;
uint64_t hi;
};
typedef struct VTDInvDesc VTDInvDesc;
/* Masks for struct VTDInvDesc */
#define VTD_INV_DESC_TYPE 0xf
#define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */
#define VTD_INV_DESC_IOTLB 0x2
#define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */
#define VTD_INV_DESC_NONE 0 /* Not an Invalidate Descriptor */
/* Masks for Invalidation Wait Descriptor*/
#define VTD_INV_DESC_WAIT_SW (1ULL << 5)
#define VTD_INV_DESC_WAIT_IF (1ULL << 4)
#define VTD_INV_DESC_WAIT_FN (1ULL << 6)
#define VTD_INV_DESC_WAIT_DATA_SHIFT 32
#define VTD_INV_DESC_WAIT_RSVD_LO 0Xffffff80ULL
#define VTD_INV_DESC_WAIT_RSVD_HI 3ULL
/* Pagesize of VTD paging structures, including root and context tables */
#define VTD_PAGE_SHIFT 12