diff options
Diffstat (limited to 'virt/kvm/iommu.c')
| -rw-r--r-- | virt/kvm/iommu.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index 96048ee9e39..62a9caf0563 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -16,6 +16,8 @@ * * Copyright (C) 2006-2008 Intel Corporation * Copyright IBM Corporation, 2008 + * Copyright 2010 Red Hat, Inc. and/or its affiliates. + * * Author: Allen M. Kay <allen.m.kay@intel.com> * Author: Weidong Han <weidong.han@intel.com> * Author: Ben-Ami Yassour <benami@il.ibm.com> @@ -106,7 +108,7 @@ int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot) get_order(page_size), flags); if (r) { printk(KERN_ERR "kvm_iommu_map_address:" - "iommu failed to map pfn=%lx\n", pfn); + "iommu failed to map pfn=%llx\n", pfn); goto unmap_pages; } @@ -124,9 +126,10 @@ unmap_pages: static int kvm_iommu_map_memslots(struct kvm *kvm) { - int i, r = 0; + int i, idx, r = 0; struct kvm_memslots *slots; + idx = srcu_read_lock(&kvm->srcu); slots = kvm_memslots(kvm); for (i = 0; i < slots->nmemslots; i++) { @@ -134,6 +137,7 @@ static int kvm_iommu_map_memslots(struct kvm *kvm) if (r) break; } + srcu_read_unlock(&kvm->srcu, idx); return r; } @@ -283,15 +287,17 @@ static void kvm_iommu_put_pages(struct kvm *kvm, static int kvm_iommu_unmap_memslots(struct kvm *kvm) { - int i; + int i, idx; struct kvm_memslots *slots; + idx = srcu_read_lock(&kvm->srcu); slots = kvm_memslots(kvm); for (i = 0; i < slots->nmemslots; i++) { kvm_iommu_put_pages(kvm, slots->memslots[i].base_gfn, slots->memslots[i].npages); } + srcu_read_unlock(&kvm->srcu, idx); return 0; } |