On Wed, Jun 22, 2011 at 10:28:04PM +0800, Xiao Guangrong wrote: > Properly check the last mapping, and do not walk to the next level if last > spte > is met > > Signed-off-by: Xiao Guangrong <[email protected]> > --- > arch/x86/kvm/mmu.c | 9 +++++---- > 1 files changed, 5 insertions(+), 4 deletions(-) > > diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c > index 9c629b5..f474e93 100644 > --- a/arch/x86/kvm/mmu.c > +++ b/arch/x86/kvm/mmu.c > @@ -1517,10 +1517,6 @@ static bool shadow_walk_okay(struct > kvm_shadow_walk_iterator *iterator) > if (iterator->level < PT_PAGE_TABLE_LEVEL) > return false; > > - if (iterator->level == PT_PAGE_TABLE_LEVEL)
Change to >= PT_PAGE_TABLE_LEVEL, checks should be in shadow_walk_okay. > - if (is_large_pte(*iterator->sptep)) > - return false; > - > iterator->index = SHADOW_PT_INDEX(iterator->addr, iterator->level); > iterator->sptep = ((u64 *)__va(iterator->shadow_addr)) + > iterator->index; > return true; -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
