From: Yi Liu yi.l.liu@intel.com
commit 154897807050c1161cb2660e502fc0470d46b986 upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iommu/intel/iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -539,7 +539,7 @@ static unsigned long __iommu_calculate_s { 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. */