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| author | Vasant Hegde <vasant.hegde@amd.com> | 2023-03-21 12:23:47 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-03-22 17:43:39 +0300 |
| commit | 0d571dcbe7c6d36dcfcb8e04a49cc01fe462d171 (patch) | |
| tree | d75be2be5e0d6751ccedec4dade0189e5f268f1b /drivers/iommu/amd/amd_iommu_types.h | |
| parent | e8d018dd0257f744ca50a729e3d042cf2ec9da65 (diff) | |
| download | linux-0d571dcbe7c6d36dcfcb8e04a49cc01fe462d171.tar.xz | |
iommu/amd: Allocate page table using numa locality info
Introduce 'struct protection_domain->nid' variable. It will contain
IOMMU NUMA node ID. And allocate page table pages using IOMMU numa
locality info. This optimizes page table walk by IOMMU.
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Link: https://lore.kernel.org/r/20230321092348.6127-2-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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/iommu/amd/amd_iommu_types.h b/drivers/iommu/amd/amd_iommu_types.h index 3d684190b4d5..e5cfdeaaad48 100644 --- a/drivers/iommu/amd/amd_iommu_types.h +++ b/drivers/iommu/amd/amd_iommu_types.h @@ -549,6 +549,7 @@ struct protection_domain { spinlock_t lock; /* mostly used to lock the page table*/ u16 id; /* the domain id written to the device table */ int glx; /* Number of levels for GCR3 table */ + int nid; /* Node ID */ u64 *gcr3_tbl; /* Guest CR3 table */ unsigned long flags; /* flags to find out type of domain */ unsigned dev_cnt; /* devices assigned to this domain */ |