From 0681de1b83697bcbc06b843d0c8302da45855205 Mon Sep 17 00:00:00 2001 From: Maxim Levitsky Date: Thu, 27 Aug 2020 20:11:41 +0300 Subject: [PATCH] KVM: SVM: use __GFP_ZERO instead of clear_page Another small refactoring. Suggested-by: Jim Mattson Signed-off-by: Maxim Levitsky Message-Id: <20200827171145.374620-5-mlevitsk@redhat.com> Signed-off-by: Paolo Bonzini --- arch/x86/kvm/svm/svm.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 535839cdcb567..22886b1d9af77 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1190,11 +1190,11 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu) svm = to_svm(vcpu); err = -ENOMEM; - vmcb_page = alloc_page(GFP_KERNEL_ACCOUNT); + vmcb_page = alloc_page(GFP_KERNEL_ACCOUNT | __GFP_ZERO); if (!vmcb_page) goto out; - hsave_page = alloc_page(GFP_KERNEL_ACCOUNT); + hsave_page = alloc_page(GFP_KERNEL_ACCOUNT | __GFP_ZERO); if (!hsave_page) goto free_page1; @@ -1209,7 +1209,6 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu) svm->avic_is_running = true; svm->nested.hsave = page_address(hsave_page); - clear_page(svm->nested.hsave); svm->msrpm = svm_vcpu_init_msrpm(); if (!svm->msrpm) @@ -1220,7 +1219,6 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu) goto free_page3; svm->vmcb = page_address(vmcb_page); - clear_page(svm->vmcb); svm->vmcb_pa = __sme_set(page_to_pfn(vmcb_page) << PAGE_SHIFT); svm->asid_generation = 0; init_vmcb(svm); -- 2.30.2