diff options
| author | Vasant Hegde <vasant.hegde@amd.com> | 2023-03-10 12:00:00 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-03-28 16:31:31 +0300 |
| commit | f594496403fa383259aa7dfad92f383a2ee07e1b (patch) | |
| tree | 2a533c413696fe7b68691b6517f172d2a528e224 /drivers/iommu/amd/amd_iommu_types.h | |
| parent | 4d4a0dbab2b998692f54fa6f7a9d2eb675110743 (diff) | |
| download | linux-f594496403fa383259aa7dfad92f383a2ee07e1b.tar.xz | |
iommu/amd: Add 5 level guest page table support
Newer AMD IOMMU supports 5 level guest page table (v2 page table). If both
processor and IOMMU supports 5 level page table then enable it. Otherwise
fall back to 4 level page table.
Co-developed-by: Wei Huang <wei.huang2@amd.com>
Signed-off-by: Wei Huang <wei.huang2@amd.com>
Reviewed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20230310090000.1117786-1-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/amd_iommu_types.h')
| -rw-r--r-- | drivers/iommu/amd/amd_iommu_types.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h index e5cfdeaaad48..3cda781b6c7f 100644 --- a/drivers/iommu/amd/amd_iommu_types.h +++ b/drivers/iommu/amd/amd_iommu_types.h @@ -93,6 +93,8 @@ #define FEATURE_GA (1ULL<<7) #define FEATURE_HE (1ULL<<8) #define FEATURE_PC (1ULL<<9) +#define FEATURE_GATS_SHIFT (12) +#define FEATURE_GATS_MASK (3ULL) #define FEATURE_GAM_VAPIC (1ULL<<21) #define FEATURE_GIOSUP (1ULL<<48) #define FEATURE_EPHSUP (1ULL<<50) @@ -305,6 +307,9 @@ #define PAGE_MODE_6_LEVEL 0x06 #define PAGE_MODE_7_LEVEL 0x07 +#define GUEST_PGTABLE_4_LEVEL 0x00 +#define GUEST_PGTABLE_5_LEVEL 0x01 + #define PM_LEVEL_SHIFT(x) (12 + ((x) * 9)) #define PM_LEVEL_SIZE(x) (((x) < 6) ? \ ((1ULL << PM_LEVEL_SHIFT((x))) - 1): \ @@ -398,6 +403,8 @@ #define DTE_GCR3_SHIFT_B 16 #define DTE_GCR3_SHIFT_C 43 +#define DTE_GPT_LEVEL_SHIFT 54 + #define GCR3_VALID 0x01ULL #define IOMMU_PAGE_MASK (((1ULL << 52) - 1) & ~0xfffULL) |