---

yaml --- r: 80853 b: refs/heads/master c: caa5b8a h: refs/heads/master i: 80851: e10118b v: v3
git-mirror · Jan 30, 2008 · 91f2ec6 · 91f2ec6
1 parent 70f134e
commit 91f2ec6
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Showing 2 changed files with 7 additions and 3 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: ec10f4750db5e810cafef114a592428f8242b640
+refs/heads/master: caa5b8a5ed27708521e0667649699fea202043b2
diff --git a/trunk/arch/x86/kvm/mmu.c b/trunk/arch/x86/kvm/mmu.c
@@ -513,6 +513,7 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn)
 {
 	unsigned long *rmapp;
 	u64 *spte;
+	int write_protected = 0;
 
 	gfn = unalias_gfn(kvm, gfn);
 	rmapp = gfn_to_rmap(kvm, gfn);
@@ -522,11 +523,14 @@ static void rmap_write_protect(struct kvm *kvm, u64 gfn)
 		BUG_ON(!spte);
 		BUG_ON(!(*spte & PT_PRESENT_MASK));
 		rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
-		if (is_writeble_pte(*spte))
+		if (is_writeble_pte(*spte)) {
 			set_shadow_pte(spte, *spte & ~PT_WRITABLE_MASK);
-		kvm_flush_remote_tlbs(kvm);
+			write_protected = 1;
+		}
 		spte = rmap_next(kvm, rmapp, spte);
 	}
+	if (write_protected)
+		kvm_flush_remote_tlbs(kvm);
 }
 
 #ifdef MMU_DEBUG