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KVM/MMU: Simplify __kvm_sync_page() function 

Merge check of "sp->role.cr4_pae != !!is_pae(vcpu))" and "vcpu->
arch.mmu.sync_page(vcpu, sp) == 0". kvm_mmu_prepare_zap_page()
is called under both these conditions.

Signed-off-by: Lan Tianyu <Tianyu.Lan@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Tianyu Lan 2018-07-18 06:12:04 +00:00 committed by Paolo Bonzini
parent 208320ba10
commit 450917b654
1 changed files with 2 additions and 6 deletions
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8
arch/x86/kvm/mmu.c
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@ -2136,12 +2136,8 @@ static void kvm_mmu_commit_zap_page(struct kvm *kvm,
static bool __kvm_sync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
struct list_head *invalid_list)
{
if (sp->role.cr4_pae != !!is_pae(vcpu)) {
kvm_mmu_prepare_zap_page(vcpu->kvm, sp, invalid_list);
return false;
}
if (vcpu->arch.mmu.sync_page(vcpu, sp) == 0) {
if (sp->role.cr4_pae != !!is_pae(vcpu)
|| vcpu->arch.mmu.sync_page(vcpu, sp) == 0) {
kvm_mmu_prepare_zap_page(vcpu->kvm, sp, invalid_list);
return false;
}