diff options
Diffstat (limited to 'arch/x86/kvm/x86.c')
-rw-r--r-- | arch/x86/kvm/x86.c | 55 |
1 files changed, 32 insertions, 23 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index abc039d78428..ebf2109318e0 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6303,14 +6303,18 @@ void kvm_arch_free_memslot(struct kvm_memory_slot *free, { int i; - for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) { - if (!dont || free->arch.rmap_pde[i] != dont->arch.rmap_pde[i]) { - kvm_kvfree(free->arch.rmap_pde[i]); - free->arch.rmap_pde[i] = NULL; + for (i = 0; i < KVM_NR_PAGE_SIZES; ++i) { + if (!dont || free->arch.rmap[i] != dont->arch.rmap[i]) { + kvm_kvfree(free->arch.rmap[i]); + free->arch.rmap[i] = NULL; } - if (!dont || free->arch.lpage_info[i] != dont->arch.lpage_info[i]) { - kvm_kvfree(free->arch.lpage_info[i]); - free->arch.lpage_info[i] = NULL; + if (i == 0) + continue; + + if (!dont || free->arch.lpage_info[i - 1] != + dont->arch.lpage_info[i - 1]) { + kvm_kvfree(free->arch.lpage_info[i - 1]); + free->arch.lpage_info[i - 1] = NULL; } } } @@ -6319,28 +6323,30 @@ int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages) { int i; - for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) { + for (i = 0; i < KVM_NR_PAGE_SIZES; ++i) { unsigned long ugfn; int lpages; - int level = i + 2; + int level = i + 1; lpages = gfn_to_index(slot->base_gfn + npages - 1, slot->base_gfn, level) + 1; - slot->arch.rmap_pde[i] = - kvm_kvzalloc(lpages * sizeof(*slot->arch.rmap_pde[i])); - if (!slot->arch.rmap_pde[i]) + slot->arch.rmap[i] = + kvm_kvzalloc(lpages * sizeof(*slot->arch.rmap[i])); + if (!slot->arch.rmap[i]) goto out_free; + if (i == 0) + continue; - slot->arch.lpage_info[i] = - kvm_kvzalloc(lpages * sizeof(*slot->arch.lpage_info[i])); - if (!slot->arch.lpage_info[i]) + slot->arch.lpage_info[i - 1] = kvm_kvzalloc(lpages * + sizeof(*slot->arch.lpage_info[i - 1])); + if (!slot->arch.lpage_info[i - 1]) goto out_free; if (slot->base_gfn & (KVM_PAGES_PER_HPAGE(level) - 1)) - slot->arch.lpage_info[i][0].write_count = 1; + slot->arch.lpage_info[i - 1][0].write_count = 1; if ((slot->base_gfn + npages) & (KVM_PAGES_PER_HPAGE(level) - 1)) - slot->arch.lpage_info[i][lpages - 1].write_count = 1; + slot->arch.lpage_info[i - 1][lpages - 1].write_count = 1; ugfn = slot->userspace_addr >> PAGE_SHIFT; /* * If the gfn and userspace address are not aligned wrt each @@ -6352,18 +6358,21 @@ int kvm_arch_create_memslot(struct kvm_memory_slot *slot, unsigned long npages) unsigned long j; for (j = 0; j < lpages; ++j) - slot->arch.lpage_info[i][j].write_count = 1; + slot->arch.lpage_info[i - 1][j].write_count = 1; } } return 0; out_free: - for (i = 0; i < KVM_NR_PAGE_SIZES - 1; ++i) { - kvm_kvfree(slot->arch.rmap_pde[i]); - kvm_kvfree(slot->arch.lpage_info[i]); - slot->arch.rmap_pde[i] = NULL; - slot->arch.lpage_info[i] = NULL; + for (i = 0; i < KVM_NR_PAGE_SIZES; ++i) { + kvm_kvfree(slot->arch.rmap[i]); + slot->arch.rmap[i] = NULL; + if (i == 0) + continue; + + kvm_kvfree(slot->arch.lpage_info[i - 1]); + slot->arch.lpage_info[i - 1] = NULL; } return -ENOMEM; } |