From 91f2ec6f0b0dcfc546701b236c74dd40971ac072 Mon Sep 17 00:00:00 2001 From: Eddie Dong Date: Tue, 18 Dec 2007 06:08:27 +0800 Subject: [PATCH] --- yaml --- r: 80853 b: refs/heads/master c: caa5b8a5ed27708521e0667649699fea202043b2 h: refs/heads/master i: 80851: e10118bb25f0df0271f9193ef5b2116de313b7e5 v: v3 --- [refs] | 2 +- trunk/arch/x86/kvm/mmu.c | 8 ++++++-- 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/[refs] b/[refs] index 60e5a786cede..a84ade3c0bbf 100644 --- 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 index 401eb7ce3207..9a57e1a01449 100644 --- 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