All the mail mirrored from lore.kernel.org
 help / color / mirror / Atom feed
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>
Subject: [PATCH v14 13/22] KVM: SEV: Add support for GHCB-based termination requests
Date: Sun, 21 Apr 2024 13:01:13 -0500	[thread overview]
Message-ID: <20240421180122.1650812-14-michael.roth@amd.com> (raw)
In-Reply-To: <20240421180122.1650812-1-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 67e245a0d2bb..1d18e3497b4e 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -3281,6 +3281,7 @@ 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;
@@ -3976,6 +3977,14 @@ 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


  parent reply	other threads:[~2024-04-21 18:05 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-21 18:01 [PATCH v14 00/22] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support Michael Roth
2024-04-21 18:01 ` [PATCH v14 01/22] KVM: SEV: Select KVM_GENERIC_PRIVATE_MEM when CONFIG_KVM_AMD_SEV=y Michael Roth
2024-04-21 18:01 ` [PATCH v14 02/22] KVM: SEV: Add support to handle AP reset MSR protocol Michael Roth
2024-04-21 18:01 ` [PATCH v14 03/22] KVM: SEV: Add GHCB handling for Hypervisor Feature Support requests Michael Roth
2024-04-24 20:21   ` Sean Christopherson
2024-04-25 20:52     ` Michael Roth
2024-04-25 21:55       ` Sean Christopherson
2024-04-21 18:01 ` [PATCH v14 04/22] KVM: SEV: Add initial SEV-SNP support Michael Roth
2024-04-21 18:01 ` [PATCH v14 05/22] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_START command Michael Roth
2024-04-24 23:26   ` Sean Christopherson
2024-04-21 18:01 ` [PATCH v14 06/22] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_UPDATE command Michael Roth
2024-04-24 23:58   ` Sean Christopherson
2024-04-21 18:01 ` [PATCH v14 07/22] KVM: SEV: Add KVM_SEV_SNP_LAUNCH_FINISH command Michael Roth
2024-04-21 18:01 ` [PATCH v14 08/22] KVM: SEV: Add support to handle GHCB GPA register VMGEXIT Michael Roth
2024-04-21 18:01 ` [PATCH v14 09/22] KVM: SEV: Add support to handle MSR based Page State Change VMGEXIT Michael Roth
2024-04-24 20:59   ` Sean Christopherson
2024-04-25 22:00     ` Michael Roth
2024-04-25 22:13       ` Sean Christopherson
2024-04-26 17:16         ` Michael Roth
2024-04-26 20:14           ` Sean Christopherson
2024-04-26 22:24             ` Michael Roth
2024-04-26 22:48               ` Michael Roth
2024-04-21 18:01 ` [PATCH v14 10/22] KVM: SEV: Add support to handle " Michael Roth
2024-04-21 18:01 ` [PATCH v14 11/22] KVM: SEV: Add support to handle RMP nested page faults Michael Roth
2024-04-21 18:01 ` [PATCH v14 12/22] KVM: SEV: Support SEV-SNP AP Creation NAE event Michael Roth
2024-04-21 18:01 ` Michael Roth [this message]
2024-04-21 18:01 ` [PATCH v14 14/22] KVM: SEV: Implement gmem hook for initializing private pages Michael Roth
2024-04-21 18:01 ` [PATCH v14 15/22] KVM: SEV: Implement gmem hook for invalidating " Michael Roth
2024-04-21 18:01 ` [PATCH v14 16/22] KVM: x86: Implement gmem hook for determining max NPT mapping level Michael Roth
2024-04-25  0:45   ` Sean Christopherson
2024-04-21 18:01 ` [PATCH v14 17/22] KVM: SEV: Avoid WBINVD for HVA-based MMU notifications for SNP Michael Roth
2024-04-25  0:17   ` Sean Christopherson
2024-04-21 18:01 ` [PATCH v14 18/22] KVM: SVM: Add module parameter to enable SEV-SNP Michael Roth
2024-04-21 18:01 ` [PATCH v14 19/22] KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event Michael Roth
2024-04-21 18:01 ` [PATCH v14 20/22] crypto: ccp: Add the SNP_VLEK_LOAD command Michael Roth
2024-04-21 18:01 ` [PATCH v14 21/22] crypto: ccp: Add the SNP_{PAUSE,RESUME}_ATTESTATION commands Michael Roth
2024-04-25  0:15   ` Sean Christopherson
2024-04-26 17:35     ` Michael Roth
2024-04-26 19:57       ` Sean Christopherson
2024-04-26 21:46         ` Michael Roth
2024-04-27  0:10           ` Sean Christopherson
2024-04-27  1:32             ` Michael Roth
2024-04-29 14:27               ` Sean Christopherson
2024-04-21 18:01 ` [PATCH v14 22/22] KVM: SEV: Provide support for SNP_EXTENDED_GUEST_REQUEST NAE event Michael Roth
2024-04-25  0:10   ` Sean Christopherson
2024-04-26 17:57     ` Michael Roth
2024-04-23 16:21 ` [PATCH v14 23/22] [SQUASH] KVM: SEV: Add support to handle GHCB GPA register VMGEXIT Michael Roth
2024-04-23 16:21   ` [PATCH v14 24/22] [SQUASH] KVM: SEV: Add support to handle MSR based Page State Change VMGEXIT Michael Roth
2024-04-23 16:21   ` [PATCH v14 25/22] [SQUASH] KVM: SEV: Add support to handle " Michael Roth
2024-04-23 16:21   ` [PATCH v14 26/22] [SQUASH] KVM: SEV: Add support for GHCB-based termination requests Michael Roth
2024-04-23 16:21   ` [PATCH v14 27/22] [SQUASH] KVM: SEV: Provide support for SNP_GUEST_REQUEST NAE event Michael Roth
2024-04-23 16:21   ` [PATCH v14 28/22] [SQUASH] KVM: SEV: Provide support for SNP_EXTENDED_GUEST_REQUEST " Michael Roth
2024-04-23 21:36     ` Jarkko Sakkinen
2024-04-23 16:21   ` [PATCH v14 29/22] [SQUASH] KVM: SEV: Support SEV-SNP AP Creation " Michael Roth
2024-04-23 16:31 ` [PATCH v14 00/22] Add AMD Secure Nested Paging (SEV-SNP) Hypervisor Support Michael Roth
2024-04-24 16:51   ` Paolo Bonzini

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20240421180122.1650812-14-michael.roth@amd.com \
    --to=michael.roth@amd.com \
    --cc=ak@linux.intel.com \
    --cc=alpergun@google.com \
    --cc=ardb@kernel.org \
    --cc=ashish.kalra@amd.com \
    --cc=bp@alien8.de \
    --cc=dave.hansen@linux.intel.com \
    --cc=dovmurik@linux.ibm.com \
    --cc=hpa@zytor.com \
    --cc=jarkko@kernel.org \
    --cc=jmattson@google.com \
    --cc=jroedel@suse.de \
    --cc=kirill@shutemov.name \
    --cc=kvm@vger.kernel.org \
    --cc=liam.merwick@oracle.com \
    --cc=linux-coco@lists.linux.dev \
    --cc=linux-crypto@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=luto@kernel.org \
    --cc=mingo@redhat.com \
    --cc=nikunj.dadhania@amd.com \
    --cc=pankaj.gupta@amd.com \
    --cc=pbonzini@redhat.com \
    --cc=peterz@infradead.org \
    --cc=pgonda@google.com \
    --cc=rientjes@google.com \
    --cc=sathyanarayanan.kuppuswamy@linux.intel.com \
    --cc=seanjc@google.com \
    --cc=slp@redhat.com \
    --cc=srinivas.pandruvada@linux.intel.com \
    --cc=tglx@linutronix.de \
    --cc=thomas.lendacky@amd.com \
    --cc=tobin@ibm.com \
    --cc=tony.luck@intel.com \
    --cc=vbabka@suse.cz \
    --cc=vkuznets@redhat.com \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.