diff options
Diffstat (limited to 'virt/kvm')
| -rw-r--r-- | virt/kvm/kvm_main.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index ec2e3c6ac7e..a60b6b053b6 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -626,9 +626,9 @@ int __kvm_set_memory_region(struct kvm *kvm, if (new.lpage_info[i]) continue; - lpages = 1 + (base_gfn + npages - 1) / - KVM_PAGES_PER_HPAGE(level); - lpages -= base_gfn / KVM_PAGES_PER_HPAGE(level); + lpages = 1 + ((base_gfn + npages - 1) + >> KVM_HPAGE_GFN_SHIFT(level)); + lpages -= base_gfn >> KVM_HPAGE_GFN_SHIFT(level); new.lpage_info[i] = vmalloc(lpages * sizeof(*new.lpage_info[i])); @@ -638,9 +638,9 @@ int __kvm_set_memory_region(struct kvm *kvm, memset(new.lpage_info[i], 0, lpages * sizeof(*new.lpage_info[i])); - if (base_gfn % KVM_PAGES_PER_HPAGE(level)) + if (base_gfn & (KVM_PAGES_PER_HPAGE(level) - 1)) new.lpage_info[i][0].write_count = 1; - if ((base_gfn+npages) % KVM_PAGES_PER_HPAGE(level)) + if ((base_gfn+npages) & (KVM_PAGES_PER_HPAGE(level) - 1)) new.lpage_info[i][lpages - 1].write_count = 1; ugfn = new.userspace_addr >> PAGE_SHIFT; /* |