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-rw-r--r--virt/kvm/iommu.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index c7d9ce122529..0df7d4b34dfe 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -103,6 +103,10 @@ int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot)
while ((gfn << PAGE_SHIFT) & (page_size - 1))
page_size >>= 1;
+ /* Make sure hva is aligned to the page size we want to map */
+ while (__gfn_to_hva_memslot(slot, gfn) & (page_size - 1))
+ page_size >>= 1;
+
/*
* Pin all pages we are about to map in memory. This is
* important because we unmap and unpin in 4kb steps later.