From: Shaohua Li <shaohua.li@intel.com>
Date: Wed, 20 Jun 2007 09:13:26 +0000 (+0800)
Subject: KVM: MMU: Fix Wrong tlb flush order
X-Git-Tag: v2.6.23-rc1~520^2~13
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=88a97f0b2fe1cd08d06390dc2669b709ea96e11a;p=profile%2Fivi%2Fkernel-x86-ivi.git

KVM: MMU: Fix Wrong tlb flush order

Need to flush the tlb after updating a pte, not before.

Signed-off-by: Shaohua Li <shaohua.li@intel.com>
Signed-off-by: Avi Kivity <avi@qumranet.com>
---

diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index ad50cfd..49ffbd3 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -441,8 +441,8 @@ static void rmap_write_protect(struct kvm_vcpu *vcpu, u64 gfn)
 		BUG_ON(!(*spte & PT_WRITABLE_MASK));
 		rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
 		rmap_remove(vcpu, spte);
-		kvm_flush_remote_tlbs(vcpu->kvm);
 		set_shadow_pte(spte, *spte & ~PT_WRITABLE_MASK);
+		kvm_flush_remote_tlbs(vcpu->kvm);
 	}
 }