| Date | Mon, 20 Jun 2011 13:28:06 -0300 | From | Marcelo Tosatti <> | Subject | Re: [PATCH 02/15] KVM: MMU: do not update slot bitmap if spte is nonpresent |
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On Tue, Jun 07, 2011 at 08:59:25PM +0800, Xiao Guangrong wrote: > Set slot bitmap only if the spte is present > > Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> > --- > arch/x86/kvm/mmu.c | 15 +++++++-------- > 1 files changed, 7 insertions(+), 8 deletions(-) > > diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c > index cda666a..125f78d 100644 > --- a/arch/x86/kvm/mmu.c > +++ b/arch/x86/kvm/mmu.c > @@ -743,9 +743,6 @@ static int rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn) > struct kvm_mmu_page *sp; > unsigned long *rmapp; > > - if (!is_rmap_spte(*spte)) > - return 0; > -
Not sure if this is safe, what if the spte is set as nonpresent but rmap not removed?
BTW i don't see what patch 1 and this have to do with the goal of the series.
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