diff options
| -rw-r--r-- | virt/kvm/iommu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index 4a340cb..72a130b 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -76,7 +76,9 @@ int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot) gfn = slot->base_gfn; end_gfn = gfn + slot->npages; - flags = IOMMU_READ | IOMMU_WRITE; + flags = IOMMU_READ; + if (!(slot->flags & KVM_MEM_READONLY)) + flags |= IOMMU_WRITE; if (kvm->arch.iommu_flags & KVM_IOMMU_CACHE_COHERENCY) flags |= IOMMU_CACHE; |