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authorAvi Kivity <avi@qumranet.com>2007-05-31 15:08:29 +0300
committerAvi Kivity <avi@qumranet.com>2007-07-16 12:05:43 +0300
commit97a0a01ea9229e4f3f0f06e0584227e9687159a5 (patch)
tree94ca92cafa05c7156757557466fa7887dd47a14f /drivers/kvm/mmu.c
parent63b1ad24d2695db3ec1cc8b10760e130e1a1f04b (diff)
KVM: MMU: Fold fix_write_pf() into set_pte_common()
This prevents some work from being performed twice, and, more importantly, reduces the number of places where we modify shadow ptes. Signed-off-by: Avi Kivity <avi@qumranet.com>
Diffstat (limited to 'drivers/kvm/mmu.c')
-rw-r--r--drivers/kvm/mmu.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/kvm/mmu.c b/drivers/kvm/mmu.c
index 2079d69f186..3cdbf687df2 100644
--- a/drivers/kvm/mmu.c
+++ b/drivers/kvm/mmu.c
@@ -731,6 +731,17 @@ static int kvm_mmu_unprotect_page(struct kvm_vcpu *vcpu, gfn_t gfn)
return r;
}
+static void mmu_unshadow(struct kvm_vcpu *vcpu, gfn_t gfn)
+{
+ struct kvm_mmu_page *page;
+
+ while ((page = kvm_mmu_lookup_page(vcpu, gfn)) != NULL) {
+ pgprintk("%s: zap %lx %x\n",
+ __FUNCTION__, gfn, page->role.word);
+ kvm_mmu_zap_page(vcpu, page);
+ }
+}
+
static void page_header_update_slot(struct kvm *kvm, void *pte, gpa_t gpa)
{
int slot = memslot_id(kvm, gfn_to_memslot(kvm, gpa >> PAGE_SHIFT));