Messages in this thread Patch in this message | | | Subject | [PATCH 4/4] KVM: Remove write access permissions when dirty-page-logging is enabled | From | Avi Kivity <> | Date | Sun, 25 Feb 2007 12:58:07 -0000 |
| |
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> --- 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 be7694d..e48b4d7 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); } - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |