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[34.125.139.61]) by smtp.gmail.com with ESMTPSA id i37-20020a631325000000b005dc36761ad1sm10833508pgl.33.2024.03.06.16.38.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 Mar 2024 16:38:56 -0800 (PST) Date: Wed, 6 Mar 2024 16:38:53 -0800 From: David Matlack To: isaku.yamahata@intel.com Cc: kvm@vger.kernel.org, isaku.yamahata@gmail.com, linux-kernel@vger.kernel.org, Sean Christopherson , Paolo Bonzini , Michael Roth , Federico Parola Subject: Re: [RFC PATCH 5/8] KVM: x86/mmu: Introduce kvm_mmu_map_page() for prepopulating guest memory Message-ID: References: <7b7dd4d56249028aa0b84d439ffdf1b79e67322a.1709288671.git.isaku.yamahata@intel.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7b7dd4d56249028aa0b84d439ffdf1b79e67322a.1709288671.git.isaku.yamahata@intel.com> On 2024-03-01 09:28 AM, isaku.yamahata@intel.com wrote: > diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c > index e4cc7f764980..7d5e80d17977 100644 > --- a/arch/x86/kvm/mmu/mmu.c > +++ b/arch/x86/kvm/mmu/mmu.c > @@ -4659,6 +4659,36 @@ int kvm_tdp_page_fault(struct kvm_vcpu *vcpu, struct kvm_page_fault *fault) > return direct_page_fault(vcpu, fault); > } > > +int kvm_mmu_map_page(struct kvm_vcpu *vcpu, gpa_t gpa, u32 error_code, > + u8 max_level, u8 *goal_level) > +{ > + struct kvm_page_fault fault = KVM_PAGE_FAULT_INIT(vcpu, gpa, error_code, > + false, max_level); > + int r; > + > + r = __kvm_mmu_do_page_fault(vcpu, &fault); If TDP is disabled __kvm_mmu_do_page_fault() will interpret @gpa as a GVA no? And if the vCPU is in guest-mode __kvm_mmu_do_page_fault() will interpret gpa as a nGPA right?