Messages in this thread | | | Date | Tue, 13 Jul 2010 19:05:51 -0300 | From | Marcelo Tosatti <> | Subject | Re: [PATCH 3/4] KVM: MMU: track dirty page in speculative path properly |
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On Tue, Jul 13, 2010 at 05:45:27PM +0800, Xiao Guangrong wrote: > In speculative path, the page is not real write-access, no need mark it > dirty, so clear dirty bit in this path and later examine this bit when > we release the page > > Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> > --- > arch/x86/kvm/mmu.c | 24 +++++++++++------------- > 1 files changed, 11 insertions(+), 13 deletions(-)
Unfortunately all pages that kvm creates translations for are marked dirty due to get_user_pages(w=1), except KSM which makes them read-only later.
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