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KVM: MMU: make for_each_shadow_entry aware of largepages

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This way there is no need to add explicit checks in every
for_each_shadow_entry user.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This commit is contained in:
Marcelo Tosatti 2009-06-11 12:07:41 -03:00 committed by Avi Kivity
parent e799794e02
commit 4d88954d62
1 changed files with 5 additions and 0 deletions
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5
arch/x86/kvm/mmu.c
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@ -1302,6 +1302,11 @@ static bool shadow_walk_okay(struct kvm_shadow_walk_iterator *iterator)
{ {
if (iterator->level < PT_PAGE_TABLE_LEVEL) if (iterator->level < PT_PAGE_TABLE_LEVEL)
return false; return false;
if (iterator->level == PT_PAGE_TABLE_LEVEL)
if (is_large_pte(*iterator->sptep))
return false;
iterator->index = SHADOW_PT_INDEX(iterator->addr, iterator->level); iterator->index = SHADOW_PT_INDEX(iterator->addr, iterator->level);
iterator->sptep = ((u64 *)__va(iterator->shadow_addr)) + iterator->index; iterator->sptep = ((u64 *)__va(iterator->shadow_addr)) + iterator->index;
return true; return true;