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 > write-protect the page which is detailed in the comments in this patch > > Signed-off-by: Xiao Guangrong <xiaoguangrong@xxxxxxxxxxxxxxxxxx> > --- > arch/x86/kvm/mmu.c | 84 ++++++++++++++++++++++++++++++++++++++++++------------ > arch/x86/kvm/x86.c | 10 +++++++ > 2 files changed, 76 insertions(+), 18 deletions(-) Reviewed-by: Marcelo Tosatti <mtosatti@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
