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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2021-08-18 21:48:44 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2021-08-19 10:41:08 +0200 |
| commit | 4d99efb229e63928c6b03a756a2e38cd4777fbe8 (patch) | |
| tree | a129681736931770f0bcc126118bc1046b2697ed /drivers/iommu | |
| parent | 452e69b58c2889e5546edb92d9e66285410f7463 (diff) | |
| download | linux-4d99efb229e63928c6b03a756a2e38cd4777fbe8.tar.gz | |
iommu/vt-d: Update the virtual command related registers
The VT-d spec Revision 3.3 updated the virtual command registers, virtual
command opcode B register, virtual command response register and virtual
command capability register (Section 10.4.43, 10.4.44, 10.4.45, 10.4.46).
This updates the virtual command interface implementation in the Intel
IOMMU driver accordingly.
Fixes: 24f27d32ab6b7 ("iommu/vt-d: Enlightened PASID allocation")
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Ashok Raj <ashok.raj@intel.com>
Cc: Sanjay Kumar <sanjay.k.kumar@intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20210713042649.3547403-1-baolu.lu@linux.intel.com
Link: https://lore.kernel.org/r/20210818134852.1847070-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel/pasid.h | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/iommu/intel/pasid.h b/drivers/iommu/intel/pasid.h index 5ff61c3d401f..8c2efb85fb3b 100644 --- a/drivers/iommu/intel/pasid.h +++ b/drivers/iommu/intel/pasid.h @@ -28,12 +28,12 @@ #define VCMD_CMD_ALLOC 0x1 #define VCMD_CMD_FREE 0x2 #define VCMD_VRSP_IP 0x1 -#define VCMD_VRSP_SC(e) (((e) >> 1) & 0x3) +#define VCMD_VRSP_SC(e) (((e) & 0xff) >> 1) #define VCMD_VRSP_SC_SUCCESS 0 -#define VCMD_VRSP_SC_NO_PASID_AVAIL 2 -#define VCMD_VRSP_SC_INVALID_PASID 2 -#define VCMD_VRSP_RESULT_PASID(e) (((e) >> 8) & 0xfffff) -#define VCMD_CMD_OPERAND(e) ((e) << 8) +#define VCMD_VRSP_SC_NO_PASID_AVAIL 16 +#define VCMD_VRSP_SC_INVALID_PASID 16 +#define VCMD_VRSP_RESULT_PASID(e) (((e) >> 16) & 0xfffff) +#define VCMD_CMD_OPERAND(e) ((e) << 16) /* * Domain ID reserved for pasid entries programmed for first-level * only and pass-through transfer modes. |