Commit b2e45b46 authored Oct 05, 2018 by Greg Kroah-Hartman

iommu

Joerg writes:
  "IOMMU Fix for Linux v4.19-rc6

   One important fix:
	- Fix a memory leak with AMD IOMMU when SME is active and a VM
	  has assigned devices. In that case the complete guest memory
	  will be leaked without this fix."

* tag 'iommu-fixes-v4.19-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/amd: Clear memory encryption mask from physical address

parents 08b297bb b3e9b515

drivers/iommu/amd_iommu.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -3069,7 +3069,7 @@ static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom,
	return 0;		return 0;

	offset_mask = pte_pgsize - 1;		offset_mask = pte_pgsize - 1;
	__pte = *pte & PM_ADDR_MASK;		__pte = __sme_clr(*pte & PM_ADDR_MASK);

	return (__pte & ~offset_mask) \| (iova & offset_mask);		return (__pte & ~offset_mask) \| (iova & offset_mask);
	}		}