From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754581Ab0IJPcn (ORCPT ); Fri, 10 Sep 2010 11:32:43 -0400 Received: from tx2ehsobe002.messaging.microsoft.com ([65.55.88.12]:34481 "EHLO TX2EHSOBE003.bigfish.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754477Ab0IJPcj (ORCPT ); Fri, 10 Sep 2010 11:32:39 -0400 X-SpamScore: 9 X-BigFish: VS9(zz78fbpzz1202hzz8275bhz32i87h2a8h63h) X-Spam-TCS-SCL: 2:0 X-FB-DOMAIN-IP-MATCH: fail X-WSS-ID: 0L8JF3Y-02-JPR-02 X-M-MSG: From: Joerg Roedel To: Avi Kivity , Marcelo Tosatti CC: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Joerg Roedel Subject: [PATCH 03/29] KVM: MMU: Make set_cr3 a function pointer in kvm_mmu Date: Fri, 10 Sep 2010 17:30:40 +0200 Message-ID: <1284132667-18620-4-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.0.4 In-Reply-To: <1284132667-18620-1-git-send-email-joerg.roedel@amd.com> References: <1284132667-18620-1-git-send-email-joerg.roedel@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-Reverse-DNS: ausb3extmailp02.amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is necessary to implement Nested Nested Paging. As a side effect this allows some cleanups in the SVM nested paging code. Signed-off-by: Joerg Roedel --- arch/x86/include/asm/kvm_host.h | 1 + arch/x86/kvm/mmu.c | 6 ++++-- 2 files changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index 53cdf39..43c8db0 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -236,6 +236,7 @@ struct kvm_pio_request { */ struct kvm_mmu { void (*new_cr3)(struct kvm_vcpu *vcpu); + void (*set_cr3)(struct kvm_vcpu *vcpu, unsigned long root); int (*page_fault)(struct kvm_vcpu *vcpu, gva_t gva, u32 err); void (*free)(struct kvm_vcpu *vcpu); gpa_t (*gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t gva, u32 access, diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 5c28e97..c8acb96 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -2714,6 +2714,7 @@ static int init_kvm_tdp_mmu(struct kvm_vcpu *vcpu) context->shadow_root_level = kvm_x86_ops->get_tdp_level(); context->root_hpa = INVALID_PAGE; context->direct_map = true; + context->set_cr3 = kvm_x86_ops->set_cr3; if (!is_paging(vcpu)) { context->gva_to_gpa = nonpaging_gva_to_gpa; @@ -2752,7 +2753,8 @@ static int init_kvm_softmmu(struct kvm_vcpu *vcpu) r = paging32_init_context(vcpu); vcpu->arch.mmu.base_role.cr4_pae = !!is_pae(vcpu); - vcpu->arch.mmu.base_role.cr0_wp = is_write_protection(vcpu); + vcpu->arch.mmu.base_role.cr0_wp = is_write_protection(vcpu); + vcpu->arch.mmu.set_cr3 = kvm_x86_ops->set_cr3; return r; } @@ -2796,7 +2798,7 @@ int kvm_mmu_load(struct kvm_vcpu *vcpu) if (r) goto out; /* set_cr3() should ensure TLB has been flushed */ - kvm_x86_ops->set_cr3(vcpu, vcpu->arch.mmu.root_hpa); + vcpu->arch.mmu.set_cr3(vcpu, vcpu->arch.mmu.root_hpa); out: return r; } -- 1.7.0.4