lkml.org 
[lkml]   [2011]   [Oct]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] KVM: MMU: initialize sptes early
Date
Otherwise, the following kvm_sync_pages() will see invalid sptes in a new
shadow page.

Signed-off-by: Zhao Jin <cronozhj@gmail.com>
---
arch/x86/kvm/mmu.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 8e8da79..d7e1694 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -1692,6 +1692,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
return sp;
sp->gfn = gfn;
sp->role = role;
+ init_shadow_page_table(sp);
hlist_add_head(&sp->hash_link,
&vcpu->kvm->arch.mmu_page_hash[kvm_page_table_hashfn(gfn)]);
if (!direct) {
@@ -1702,7 +1703,6 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,

account_shadowed(vcpu->kvm, gfn);
}
- init_shadow_page_table(sp);
trace_kvm_mmu_get_page(sp, true);
return sp;
}
--
1.7.5.4


\
 
 \ /
  Last update: 2011-10-24 09:25    [W:0.065 / U:0.436 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site