On Wed, Oct 23, 2013 at 09:29:23PM +0800, Xiao Guangrong wrote:
> kvm_vm_ioctl_get_dirty_log() write-protects the spte based on the its dirty
> bitmap, so we should ensure the writable spte can be found in rmap before the
> dirty bitmap is visible. Otherwise, we clear the dirty bitmap but fail to
>
kvm_vm_ioctl_get_dirty_log() write-protects the spte based on the its dirty
bitmap, so we should ensure the writable spte can be found in rmap before the
dirty bitmap is visible. Otherwise, we clear the dirty bitmap but fail to
write-protect the page which is detailed in the comments in this patch
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