diff options
| author | Yi Liu <yi.l.liu@intel.com> | 2022-09-21 10:40:54 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-09-21 10:22:54 +0200 |
| commit | 154897807050c1161cb2660e502fc0470d46b986 (patch) | |
| tree | b1e0232ac7c2c65923d91044593833db862feac8 | |
| parent | 7ebb5f8e001037efbdf18afabbbebf71bd98825e (diff) | |
| download | linux-154897807050c1161cb2660e502fc0470d46b986.tar.gz | |
iommu/vt-d: Check correct capability for sagaw determination
Check 5-level paging capability for 57 bits address width instead of
checking 1GB large page capability.
Fixes: 53fc7ad6edf2 ("iommu/vt-d: Correctly calculate sagaw value of IOMMU")
Cc: stable@vger.kernel.org
Reported-by: Raghunathan Srinivasan <raghunathan.srinivasan@intel.com>
Signed-off-by: Yi Liu <yi.l.liu@intel.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Raghunathan Srinivasan <raghunathan.srinivasan@intel.com>
Link: https://lore.kernel.org/r/20220916071212.2223869-2-yi.l.liu@intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 64d30895a4c8f..31bc50e538a34 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -399,7 +399,7 @@ static unsigned long __iommu_calculate_sagaw(struct intel_iommu *iommu) { unsigned long fl_sagaw, sl_sagaw; - fl_sagaw = BIT(2) | (cap_fl1gp_support(iommu->cap) ? BIT(3) : 0); + fl_sagaw = BIT(2) | (cap_5lp_support(iommu->cap) ? BIT(3) : 0); sl_sagaw = cap_sagaw(iommu->cap); /* Second level only. */ |