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dkim=pass header.d=amd.com header.s=selector1 header.b=i1jec8cs; spf=pass (imf12.hostedemail.com: domain of brijesh.singh@amd.com designates 40.107.212.51 as permitted sender) smtp.mailfrom=brijesh.singh@amd.com; dmarc=pass (policy=quarantine) header.from=amd.com X-Rspamd-Server: rspam05 X-Stat-Signature: 4tcbw84ccujp4foepd6egf9a9z9w6gei X-Rspamd-Queue-Id: 21C4210000A8 X-Rspam-User: nil X-HE-Tag: 1625692279-174133 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: From: Tom Lendacky In preparation to support SEV-SNP AP Creation, use a variable that holds the VMSA physical address rather than converting the virtual address. This will allow SEV-SNP AP Creation to set the new physical address that will be used should the vCPU reset path be taken. Signed-off-by: Tom Lendacky Signed-off-by: Brijesh Singh --- arch/x86/kvm/svm/sev.c | 5 ++--- arch/x86/kvm/svm/svm.c | 9 ++++++++- arch/x86/kvm/svm/svm.h | 1 + 3 files changed, 11 insertions(+), 4 deletions(-) diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c index 4cb4c1d7e444..d8ad6dd58c87 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -3553,10 +3553,9 @@ void sev_es_init_vmcb(struct vcpu_svm *svm) /* * An SEV-ES guest requires a VMSA area that is a separate from the - * VMCB page. Do not include the encryption mask on the VMSA physical - * address since hardware will access it using the guest key. + * VMCB page. */ - svm->vmcb->control.vmsa_pa = __pa(svm->vmsa); + svm->vmcb->control.vmsa_pa = svm->vmsa_pa; /* Can't intercept CR register access, HV can't modify CR registers */ svm_clr_intercept(svm, INTERCEPT_CR0_READ); diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 32e35d396508..74bc635c9608 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1379,9 +1379,16 @@ static int svm_create_vcpu(struct kvm_vcpu *vcpu) svm->vmcb01.ptr = page_address(vmcb01_page); svm->vmcb01.pa = __sme_set(page_to_pfn(vmcb01_page) << PAGE_SHIFT); - if (vmsa_page) + if (vmsa_page) { svm->vmsa = page_address(vmsa_page); + /* + * Do not include the encryption mask on the VMSA physical + * address since hardware will access it using the guest key. + */ + svm->vmsa_pa = __pa(svm->vmsa); + } + svm->guest_state_loaded = false; svm_switch_vmcb(svm, &svm->vmcb01); diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 9fcfc0a51737..285d9b97b4d2 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -177,6 +177,7 @@ struct vcpu_svm { /* SEV-ES support */ struct sev_es_save_area *vmsa; + hpa_t vmsa_pa; struct ghcb *ghcb; struct kvm_host_map ghcb_map; bool received_first_sipi; -- 2.17.1