diff options
| author | Uri Lublin <uril@qumranet.com> | 2007-02-22 17:37:32 +0200 |
|---|---|---|
| committer | Avi Kivity <avi@qumranet.com> | 2007-02-25 12:44:49 +0200 |
| commit | 7703ff91ee2ed171f2175d030e7f063c4efab2f5 (patch) | |
| tree | d9318c944388342e7a158495b770b73b9a11ab3f | |
| parent | b77fd1f62576463434fc434cbdcd808847e169a1 (diff) | |
KVM: Remove write access permissions when dirty-page-logging is enabledkvm-15
Enabling dirty page logging is done using KVM_SET_MEMORY_REGION ioctl.
If the memory region already exists, we need to remove write accesses,
so writes will be caught, and dirty pages will be logged.
Signed-off-by: Uri Lublin <uril@qumranet.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
| -rw-r--r-- | drivers/kvm/kvm_main.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/kvm/kvm_main.c b/drivers/kvm/kvm_main.c index be7694db285d..e48b4d7a350e 100644 --- a/drivers/kvm/kvm_main.c +++ b/drivers/kvm/kvm_main.c @@ -748,6 +748,8 @@ raced: vcpu = vcpu_load_slot(kvm, i); if (!vcpu) continue; + if (new.flags & KVM_MEM_LOG_DIRTY_PAGES) + do_remove_write_access(vcpu, mem->slot); kvm_mmu_reset_context(vcpu); vcpu_put(vcpu); } |