From: Michael Roth <michael.roth@amd.com>
To: <kvm@vger.kernel.org>
Cc: <linux-coco@lists.linux.dev>, <linux-mm@kvack.org>,
<linux-crypto@vger.kernel.org>, <x86@kernel.org>,
<linux-kernel@vger.kernel.org>, <tglx@linutronix.de>,
<mingo@redhat.com>, <jroedel@suse.de>, <thomas.lendacky@amd.com>,
<hpa@zytor.com>, <ardb@kernel.org>, <pbonzini@redhat.com>,
<seanjc@google.com>, <vkuznets@redhat.com>, <jmattson@google.com>,
<luto@kernel.org>, <dave.hansen@linux.intel.com>,
<slp@redhat.com>, <pgonda@google.com>, <peterz@infradead.org>,
<srinivas.pandruvada@linux.intel.com>, <rientjes@google.com>,
<dovmurik@linux.ibm.com>, <tobin@ibm.com>, <bp@alien8.de>,
<vbabka@suse.cz>, <kirill@shutemov.name>, <ak@linux.intel.com>,
<tony.luck@intel.com>,
<sathyanarayanan.kuppuswamy@linux.intel.com>,
<alpergun@google.com>, <jarkko@kernel.org>,
<ashish.kalra@amd.com>, <nikunj.dadhania@amd.com>,
<pankaj.gupta@amd.com>, <liam.merwick@oracle.com>,
<zhi.a.wang@intel.com>
Subject: [PATCH v11 27/35] KVM: SEV: Add support for GHCB-based termination requests
Date: Sat, 30 Dec 2023 11:23:43 -0600 [thread overview]
Message-ID: <20231230172351.574091-28-michael.roth@amd.com> (raw)
In-Reply-To: <20231230172351.574091-1-michael.roth@amd.com>
GHCB version 2 adds support for a GHCB-based termination request that
a guest can issue when it reaches an error state and wishes to inform
the hypervisor that it should be terminated. Implement support for that
similarly to GHCB MSR-based termination requests that are already
available to SEV-ES guests via earlier versions of the GHCB protocol.
See 'Termination Request' in the 'Invoking VMGEXIT' section of the GHCB
specification for more details.
Signed-off-by: Michael Roth <michael.roth@amd.com>
---
arch/x86/kvm/svm/sev.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 3bb89c4df5d6..b2ac696c436a 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -3100,6 +3100,7 @@ static int sev_es_validate_vmgexit(struct vcpu_svm *svm)
case SVM_VMGEXIT_UNSUPPORTED_EVENT:
case SVM_VMGEXIT_HV_FEATURES:
case SVM_VMGEXIT_PSC:
+ case SVM_VMGEXIT_TERM_REQUEST:
break;
default:
reason = GHCB_ERR_INVALID_EVENT;
@@ -3782,6 +3783,14 @@ int sev_handle_vmgexit(struct kvm_vcpu *vcpu)
ret = 1;
break;
+ case SVM_VMGEXIT_TERM_REQUEST:
+ pr_info("SEV-ES guest requested termination: reason %#llx info %#llx\n",
+ control->exit_info_1, control->exit_info_2);
+ vcpu->run->exit_reason = KVM_EXIT_SYSTEM_EVENT;
+ vcpu->run->system_event.type = KVM_SYSTEM_EVENT_SEV_TERM;
+ vcpu->run->system_event.ndata = 1;
+ vcpu->run->system_event.data[0] = control->ghcb_gpa;
+ break;
case SVM_VMGEXIT_UNSUPPORTED_EVENT:
vcpu_unimpl(vcpu,
"vmgexit: unsupported event - exit_info_1=%#llx, exit_info_2=%#llx\n",
--
2.25.1
next prev parent reply other threads:[~2023-12-30 17:31 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-30 17:23 [PATCH v11 00/35] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support Michael Roth
2023-12-30 17:23 ` [PATCH v11 01/35] KVM: Add hugepage support for dedicated guest memory Michael Roth
2023-12-30 17:23 ` [PATCH v11 02/35] mm: Introduce AS_INACCESSIBLE for encrypted/confidential memory Michael Roth
2023-12-30 17:23 ` [PATCH v11 03/35] KVM: Use AS_INACCESSIBLE when creating guest_memfd inode Michael Roth
2023-12-30 17:23 ` [PATCH v11 04/35] KVM: x86: Add gmem hook for initializing memory Michael Roth
2023-12-30 17:23 ` [PATCH v11 05/35] KVM: x86: Add gmem hook for invalidating memory Michael Roth
2023-12-30 17:23 ` [PATCH v11 06/35] KVM: x86/mmu: Pass around full 64-bit error code for KVM page faults Michael Roth
2024-02-06 20:51 ` Sean Christopherson
2024-02-12 10:00 ` Paolo Bonzini
2024-02-12 16:42 ` Michael Roth
2023-12-30 17:23 ` [PATCH v11 07/35] KVM: x86: Add KVM_X86_SNP_VM vm_type Michael Roth
2023-12-30 17:23 ` [PATCH v11 08/35] KVM: x86: Define RMP page fault error bits for #NPF Michael Roth
2023-12-30 17:23 ` [PATCH v11 09/35] KVM: x86: Determine shared/private faults based on vm_type Michael Roth
2024-02-12 10:31 ` Paolo Bonzini
2024-02-12 16:27 ` Sean Christopherson
2024-02-12 16:47 ` Michael Roth
2023-12-30 17:23 ` [PATCH v11 10/35] KVM: SEV: Do not intercept accesses to MSR_IA32_XSS for SEV-ES guests Michael Roth
2023-12-30 17:23 ` [PATCH v11 11/35] KVM: SEV: Select KVM_GENERIC_PRIVATE_MEM when CONFIG_KVM_AMD_SEV=y Michael Roth
2023-12-30 17:23 ` [PATCH v11 12/35] KVM: SEV: Add support to handle AP reset MSR protocol Michael Roth
2023-12-30 17:23 ` [PATCH v11 13/35] KVM: SEV: Add GHCB handling for Hypervisor Feature Support requests Michael Roth
2023-12-30 17:23 ` [PATCH v11 14/35] KVM: SEV: Add initial SEV-SNP support Michael Roth
2023-12-30 17:23 ` [PATCH v11 15/35] KVM: SEV: Add KVM_SNP_INIT command Michael Roth
2024-02-06 23:51 ` Paolo Bonzini
2024-03-20 17:28 ` Paolo Bonzini
2023-12-30 17:23 ` [PATCH v11 16/35] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_START command Michael Roth
2023-12-30 17:23 ` [PATCH v11 17/35] KVM: Add HVA range operator Michael Roth
2023-12-30 17:23 ` [PATCH v11 18/35] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_UPDATE command Michael Roth
2024-01-10 15:45 ` Sean Christopherson
2024-01-16 4:14 ` Michael Roth
2024-02-02 22:54 ` Sean Christopherson
2024-02-06 23:43 ` Paolo Bonzini
2024-02-07 2:43 ` Sean Christopherson
2024-02-07 8:03 ` Paolo Bonzini
2024-02-09 1:52 ` Michael Roth
2024-02-09 14:34 ` Sean Christopherson
2024-03-18 21:02 ` Peter Gonda
2023-12-30 17:23 ` [PATCH v11 19/35] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_FINISH command Michael Roth
2023-12-30 17:23 ` [PATCH v11 20/35] KVM: SEV: Add support to handle GHCB GPA register VMGEXIT Michael Roth
2023-12-30 17:23 ` [PATCH v11 21/35] KVM: SEV: Add support to handle MSR based Page State Change VMGEXIT Michael Roth
2023-12-30 17:23 ` [PATCH v11 22/35] KVM: SEV: Add support to handle " Michael Roth
2023-12-30 17:23 ` [PATCH v11 23/35] KVM: x86: Export the kvm_zap_gfn_range() for the SNP use Michael Roth
2023-12-30 17:23 ` [PATCH v11 24/35] KVM: SEV: Add support to handle RMP nested page faults Michael Roth
2023-12-30 17:23 ` [PATCH v11 25/35] KVM: SEV: Use a VMSA physical address variable for populating VMCB Michael Roth
2023-12-30 17:23 ` [PATCH v11 26/35] KVM: SEV: Support SEV-SNP AP Creation NAE event Michael Roth
2024-01-05 22:08 ` Jacob Xu
2024-01-08 15:53 ` Sean Christopherson
2023-12-30 17:23 ` Michael Roth [this message]
2023-12-30 17:23 ` [PATCH v11 28/35] KVM: SEV: Implement gmem hook for initializing private pages Michael Roth
2024-03-11 5:50 ` Binbin Wu
2023-12-30 17:23 ` [PATCH v11 29/35] KVM: SEV: Implement gmem hook for invalidating " Michael Roth
2023-12-30 17:23 ` [PATCH v11 30/35] KVM: x86: Add gmem hook for determining max NPT mapping level Michael Roth
2024-02-12 10:50 ` Paolo Bonzini
2024-02-12 17:03 ` Michael Roth
2023-12-30 17:23 ` [PATCH v11 31/35] KVM: SEV: Avoid WBINVD for HVA-based MMU notifications for SNP Michael Roth
2023-12-30 17:23 ` [PATCH v11 32/35] KVM: SVM: Add module parameter to enable the SEV-SNP Michael Roth
2023-12-30 17:23 ` [PATCH v11 33/35] KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event Michael Roth
2023-12-30 17:23 ` [PATCH v11 34/35] crypto: ccp: Add the SNP_SET_CONFIG_{START,END} commands Michael Roth
2023-12-30 17:23 ` [PATCH v11 35/35] KVM: SEV: Provide support for SNP_EXTENDED_GUEST_REQUEST NAE event Michael Roth
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