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| author | Jacob Pan <jacob.jun.pan@linux.intel.com> | 2019-08-26 08:53:29 -0700 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2019-09-03 15:01:27 +0200 |
| commit | 8744daf4b0699b724ee0a56b313a6c0c4ea289e3 (patch) | |
| tree | d0af966c4e74c3be1f5cf9f360d6eabf07c15d05 /include | |
| parent | 0ce4a85f4f015d13a6a6b4954f4e8e63cd83f7b1 (diff) | |
| download | linux-stable-8744daf4b0699b724ee0a56b313a6c0c4ea289e3.tar.gz linux-stable-8744daf4b0699b724ee0a56b313a6c0c4ea289e3.tar.bz2 linux-stable-8744daf4b0699b724ee0a56b313a6c0c4ea289e3.zip | |
iommu/vt-d: Remove global page flush support
Global pages support is removed from VT-d spec 3.0. Since global pages G
flag only affects first-level paging structures and because DMA request
with PASID are only supported by VT-d spec. 3.0 and onward, we can
safely remove global pages support.
For kernel shared virtual address IOTLB invalidation, PASID
granularity and page selective within PASID will be used. There is
no global granularity supported. Without this fix, IOTLB invalidation
will cause invalid descriptor error in the queued invalidation (QI)
interface.
Fixes: 1c4f88b7f1f9 ("iommu/vt-d: Shared virtual address in scalable mode")
Reported-by: Sanjay K Kumar <sanjay.k.kumar@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/intel-iommu.h | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index f2ae8a006ff8..4fc6454f7ebb 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -346,7 +346,6 @@ enum { #define QI_PC_PASID_SEL (QI_PC_TYPE | QI_PC_GRAN(1)) #define QI_EIOTLB_ADDR(addr) ((u64)(addr) & VTD_PAGE_MASK) -#define QI_EIOTLB_GL(gl) (((u64)gl) << 7) #define QI_EIOTLB_IH(ih) (((u64)ih) << 6) #define QI_EIOTLB_AM(am) (((u64)am)) #define QI_EIOTLB_PASID(pasid) (((u64)pasid) << 32) @@ -378,8 +377,6 @@ enum { #define QI_RESP_INVALID 0x1 #define QI_RESP_FAILURE 0xf -#define QI_GRAN_ALL_ALL 0 -#define QI_GRAN_NONG_ALL 1 #define QI_GRAN_NONG_PASID 2 #define QI_GRAN_PSI_PASID 3 |