From: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
Fold check_ept_pointer_match() into hv_remote_flush_tlb_with_range() in
preparation for combining the kvm_for_each_vcpu loops of the ==CHECK and
!=MATCH statements.
No functional change intended.
Reviewed-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
Signed-off-by: Sean Christopherson <sean.j.christopherson@xxxxxxxxx>
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kvm/vmx/vmx.c | 44 +++++++++++++++++++-----------------------
1 file changed, 20 insertions(+), 24 deletions(-)
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index cf79fc6c01bb..a1c7ba0918e7 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -472,28 +472,6 @@ static const u32 vmx_uret_msrs_list[] = {
static bool __read_mostly enlightened_vmcs = true;
module_param(enlightened_vmcs, bool, 0444);
-/* check_ept_pointer() should be under protection of ept_pointer_lock. */
-static void check_ept_pointer_match(struct kvm *kvm)
-{
- struct kvm_vcpu *vcpu;
- u64 tmp_eptp = INVALID_PAGE;
- int i;
-
- kvm_for_each_vcpu(i, vcpu, kvm) {
- if (!VALID_PAGE(tmp_eptp)) {
- tmp_eptp = to_vmx(vcpu)->ept_pointer;
- } else if (tmp_eptp != to_vmx(vcpu)->ept_pointer) {
- to_kvm_vmx(kvm)->hv_tlb_eptp = INVALID_PAGE;
- to_kvm_vmx(kvm)->ept_pointers_match
- = EPT_POINTERS_MISMATCH;
- return;
- }
- }
-
- to_kvm_vmx(kvm)->hv_tlb_eptp = tmp_eptp;
- to_kvm_vmx(kvm)->ept_pointers_match = EPT_POINTERS_MATCH;
-}
-
static int kvm_fill_hv_flush_list_func(struct hv_guest_mapping_flush_list *flush,
void *data)
{
@@ -523,11 +501,29 @@ static int hv_remote_flush_tlb_with_range(struct kvm *kvm,
struct kvm_vmx *kvm_vmx = to_kvm_vmx(kvm);
struct kvm_vcpu *vcpu;
int ret = 0, i;
+ u64 tmp_eptp;
spin_lock(&kvm_vmx->ept_pointer_lock);
- if (kvm_vmx->ept_pointers_match == EPT_POINTERS_CHECK)
- check_ept_pointer_match(kvm);
+ if (kvm_vmx->ept_pointers_match == EPT_POINTERS_CHECK) {
+ kvm_vmx->ept_pointers_match = EPT_POINTERS_MATCH;
+ kvm_vmx->hv_tlb_eptp = INVALID_PAGE;
+
+ kvm_for_each_vcpu(i, vcpu, kvm) {
+ tmp_eptp = to_vmx(vcpu)->ept_pointer;
+ if (!VALID_PAGE(tmp_eptp))
+ continue;
+
+ if (!VALID_PAGE(kvm_vmx->hv_tlb_eptp)) {
+ kvm_vmx->hv_tlb_eptp = tmp_eptp;
+ } else if (kvm_vmx->hv_tlb_eptp != tmp_eptp) {
+ kvm_vmx->hv_tlb_eptp = INVALID_PAGE;
+ kvm_vmx->ept_pointers_match
+ = EPT_POINTERS_MISMATCH;
+ break;
+ }
+ }
+ }
if (kvm_vmx->ept_pointers_match != EPT_POINTERS_MATCH) {
kvm_for_each_vcpu(i, vcpu, kvm) {
--
2.30.1.766.gb4fecdf3b7-goog
