diff options
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/iommu.c | 18 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 36 |
2 files changed, 35 insertions, 19 deletions
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c index 15147583abd1..bc697a66a883 100644 --- a/virt/kvm/iommu.c +++ b/virt/kvm/iommu.c @@ -76,10 +76,13 @@ unmap_pages: static int kvm_iommu_map_memslots(struct kvm *kvm) { int i, r = 0; + struct kvm_memslots *slots; - for (i = 0; i < kvm->nmemslots; i++) { - r = kvm_iommu_map_pages(kvm, kvm->memslots[i].base_gfn, - kvm->memslots[i].npages); + slots = kvm->memslots; + + for (i = 0; i < slots->nmemslots; i++) { + r = kvm_iommu_map_pages(kvm, slots->memslots[i].base_gfn, + slots->memslots[i].npages); if (r) break; } @@ -210,10 +213,13 @@ static void kvm_iommu_put_pages(struct kvm *kvm, static int kvm_iommu_unmap_memslots(struct kvm *kvm) { int i; + struct kvm_memslots *slots; + + slots = kvm->memslots; - for (i = 0; i < kvm->nmemslots; i++) { - kvm_iommu_put_pages(kvm, kvm->memslots[i].base_gfn, - kvm->memslots[i].npages); + for (i = 0; i < slots->nmemslots; i++) { + kvm_iommu_put_pages(kvm, slots->memslots[i].base_gfn, + slots->memslots[i].npages); } return 0; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index bc23b8e0609b..86dd8f3d29c9 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -375,12 +375,16 @@ static struct kvm *kvm_create_vm(void) INIT_HLIST_HEAD(&kvm->irq_ack_notifier_list); #endif + r = -ENOMEM; + kvm->memslots = kzalloc(sizeof(struct kvm_memslots), GFP_KERNEL); + if (!kvm->memslots) + goto out_err; + #ifdef KVM_COALESCED_MMIO_PAGE_OFFSET page = alloc_page(GFP_KERNEL | __GFP_ZERO); - if (!page) { - r = -ENOMEM; + if (!page) goto out_err; - } + kvm->coalesced_mmio_ring = (struct kvm_coalesced_mmio_ring *)page_address(page); #endif @@ -416,6 +420,7 @@ out: out_err: hardware_disable_all(); out_err_nodisable: + kfree(kvm->memslots); kfree(kvm); return ERR_PTR(r); } @@ -450,9 +455,12 @@ static void kvm_free_physmem_slot(struct kvm_memory_slot *free, void kvm_free_physmem(struct kvm *kvm) { int i; + struct kvm_memslots *slots = kvm->memslots; + + for (i = 0; i < slots->nmemslots; ++i) + kvm_free_physmem_slot(&slots->memslots[i], NULL); - for (i = 0; i < kvm->nmemslots; ++i) - kvm_free_physmem_slot(&kvm->memslots[i], NULL); + kfree(kvm->memslots); } static void kvm_destroy_vm(struct kvm *kvm) @@ -533,7 +541,7 @@ int __kvm_set_memory_region(struct kvm *kvm, if (mem->guest_phys_addr + mem->memory_size < mem->guest_phys_addr) goto out; - memslot = &kvm->memslots[mem->slot]; + memslot = &kvm->memslots->memslots[mem->slot]; base_gfn = mem->guest_phys_addr >> PAGE_SHIFT; npages = mem->memory_size >> PAGE_SHIFT; @@ -554,7 +562,7 @@ int __kvm_set_memory_region(struct kvm *kvm, /* Check for overlaps */ r = -EEXIST; for (i = 0; i < KVM_MEMORY_SLOTS; ++i) { - struct kvm_memory_slot *s = &kvm->memslots[i]; + struct kvm_memory_slot *s = &kvm->memslots->memslots[i]; if (s == memslot || !s->npages) continue; @@ -656,8 +664,8 @@ skip_lpage: kvm_arch_flush_shadow(kvm); spin_lock(&kvm->mmu_lock); - if (mem->slot >= kvm->nmemslots) - kvm->nmemslots = mem->slot + 1; + if (mem->slot >= kvm->memslots->nmemslots) + kvm->memslots->nmemslots = mem->slot + 1; *memslot = new; spin_unlock(&kvm->mmu_lock); @@ -727,7 +735,7 @@ int kvm_get_dirty_log(struct kvm *kvm, if (log->slot >= KVM_MEMORY_SLOTS) goto out; - memslot = &kvm->memslots[log->slot]; + memslot = &kvm->memslots->memslots[log->slot]; r = -ENOENT; if (!memslot->dirty_bitmap) goto out; @@ -781,9 +789,10 @@ EXPORT_SYMBOL_GPL(kvm_is_error_hva); struct kvm_memory_slot *gfn_to_memslot_unaliased(struct kvm *kvm, gfn_t gfn) { int i; + struct kvm_memslots *slots = kvm->memslots; - for (i = 0; i < kvm->nmemslots; ++i) { - struct kvm_memory_slot *memslot = &kvm->memslots[i]; + for (i = 0; i < slots->nmemslots; ++i) { + struct kvm_memory_slot *memslot = &slots->memslots[i]; if (gfn >= memslot->base_gfn && gfn < memslot->base_gfn + memslot->npages) @@ -802,10 +811,11 @@ struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn) int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn) { int i; + struct kvm_memslots *slots = kvm->memslots; gfn = unalias_gfn(kvm, gfn); for (i = 0; i < KVM_MEMORY_SLOTS; ++i) { - struct kvm_memory_slot *memslot = &kvm->memslots[i]; + struct kvm_memory_slot *memslot = &slots->memslots[i]; if (gfn >= memslot->base_gfn && gfn < memslot->base_gfn + memslot->npages) |