* [PATCH] KVM: MMU: fix hugepage mapping corrupt caused by regression
@ 2010-07-23 5:16 Xiao Guangrong
2010-07-25 8:48 ` Avi Kivity
0 siblings, 1 reply; 2+ messages in thread
From: Xiao Guangrong @ 2010-07-23 5:16 UTC (permalink / raw)
To: Avi Kivity; +Cc: Marcelo Tosatti, LKML, KVM list
This is the regression, the bug which is fixed by commit e09e90a5
is active now
Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
arch/x86/kvm/paging_tmpl.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index a09e04c..d9a2742 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -374,13 +374,13 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
shadow_walk_next(&it)) {
gfn_t direct_gfn;
+ validate_direct_spte(vcpu, it.sptep, direct_access);
+
drop_large_spte(vcpu, it.sptep);
if (is_shadow_present_pte(*it.sptep))
continue;
- validate_direct_spte(vcpu, it.sptep, direct_access);
-
direct_gfn = gw->gfn & ~(KVM_PAGES_PER_HPAGE(it.level) - 1);
sp = kvm_mmu_get_page(vcpu, direct_gfn, addr, it.level-1,
--
1.6.1.2
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2010-07-23 5:16 [PATCH] KVM: MMU: fix hugepage mapping corrupt caused by regression Xiao Guangrong
2010-07-25 8:48 ` Avi Kivity
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