diff options
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/kvm_main.c | 29 |
1 files changed, 8 insertions, 21 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 7adaa206341..a30447c5eb4 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -616,7 +616,6 @@ static int kvm_vm_release(struct inode *inode, struct file *filp) return 0; } -#ifndef CONFIG_S390 /* * Allocation size is twice as large as the actual dirty bitmap size. * This makes it possible to do double buffering: see x86's @@ -624,6 +623,7 @@ static int kvm_vm_release(struct inode *inode, struct file *filp) */ static int kvm_create_dirty_bitmap(struct kvm_memory_slot *memslot) { +#ifndef CONFIG_S390 unsigned long dirty_bytes = 2 * kvm_dirty_bitmap_bytes(memslot); if (dirty_bytes > PAGE_SIZE) @@ -636,9 +636,9 @@ static int kvm_create_dirty_bitmap(struct kvm_memory_slot *memslot) memslot->dirty_bitmap_head = memslot->dirty_bitmap; memslot->nr_dirty_pages = 0; +#endif /* !CONFIG_S390 */ return 0; } -#endif /* !CONFIG_S390 */ static int cmp_memslot(const void *slot1, const void *slot2) { @@ -695,9 +695,6 @@ static int create_lpage_info(struct kvm_memory_slot *slot, unsigned long npages) int lpages; int level = i + 2; - if (slot->lpage_info[i]) - continue; - lpages = gfn_to_index(slot->base_gfn + npages - 1, slot->base_gfn, level) + 1; @@ -815,23 +812,18 @@ int __kvm_set_memory_region(struct kvm *kvm, r = -ENOMEM; /* Allocate if a slot is being created */ + if (npages && !old.npages) { + new.user_alloc = user_alloc; + new.userspace_addr = mem->userspace_addr; #ifndef CONFIG_S390 - if (npages && !new.rmap) { new.rmap = vzalloc(npages * sizeof(*new.rmap)); - if (!new.rmap) goto out_free; - new.user_alloc = user_alloc; - new.userspace_addr = mem->userspace_addr; + if (create_lpage_info(&new, npages)) + goto out_free; +#endif /* not defined CONFIG_S390 */ } - if (!npages) - goto skip_lpage; - - if (create_lpage_info(&new, npages)) - goto out_free; - -skip_lpage: /* Allocate page dirty bitmap if needed */ if ((new.flags & KVM_MEM_LOG_DIRTY_PAGES) && !new.dirty_bitmap) { @@ -839,11 +831,6 @@ skip_lpage: goto out_free; /* destroy any largepage mappings for dirty tracking */ } -#else /* not defined CONFIG_S390 */ - new.user_alloc = user_alloc; - if (user_alloc) - new.userspace_addr = mem->userspace_addr; -#endif /* not defined CONFIG_S390 */ if (!npages) { struct kvm_memory_slot *slot; |