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spf=pass (imf11.hostedemail.com: domain of Ashish.Kalra@amd.com designates 40.107.102.51 as permitted sender) smtp.mailfrom=Ashish.Kalra@amd.com; arc=pass ("microsoft.com:s=arcselector9901:i=1"); dmarc=pass (policy=quarantine) header.from=amd.com X-Rspamd-Queue-Id: AB24140016 X-Rspamd-Server: rspam02 X-Rspam-User: X-HE-Tag: 1655766851-918706 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 --- 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 089af21a4efe..d5584551f3dd 100644 --- a/arch/x86/kvm/svm/sev.c +++ b/arch/x86/kvm/svm/sev.c @@ -3980,10 +3980,9 @@ 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->sev_es.vmsa); + svm->vmcb->control.vmsa_pa = svm->sev_es.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 7742bc986afc..f7155abe7567 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1296,9 +1296,16 @@ static int svm_vcpu_create(struct kvm_vcpu *vcpu) svm->vmcb01.pa = __sme_set(page_to_pfn(vmcb01_page) << PAGE_SHIFT); svm_switch_vmcb(svm, &svm->vmcb01); - if (vmsa_page) + if (vmsa_page) { svm->sev_es.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->sev_es.vmsa_pa = __pa(svm->sev_es.vmsa); + } + svm->guest_state_loaded = false; return 0; diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h index 3be24da1a743..46790bab07a8 100644 --- a/arch/x86/kvm/svm/svm.h +++ b/arch/x86/kvm/svm/svm.h @@ -197,6 +197,7 @@ struct svm_nested_state { struct vcpu_sev_es_state { /* SEV-ES support */ struct sev_es_save_area *vmsa; + hpa_t vmsa_pa; bool ghcb_in_use; bool received_first_sipi; unsigned int ap_reset_hold_type;