From: Joerg Roedel <joro@8bytes.org>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Sean Christopherson <seanjc@google.com>,
Vitaly Kuznetsov <vkuznets@redhat.com>,
Wanpeng Li <wanpengli@tencent.com>,
Jim Mattson <jmattson@google.com>, Joerg Roedel <joro@8bytes.org>,
x86@kernel.org, Brijesh Singh <brijesh.singh@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
kvm@vger.kernel.org, linux-kernel@vger.kernel.org,
Joerg Roedel <jroedel@suse.de>
Subject: [PATCH v3 4/4] KVM: SVM: Increase supported GHCB protocol version
Date: Mon, 13 Sep 2021 16:13:45 +0200 [thread overview]
Message-ID: <20210913141345.27175-5-joro@8bytes.org> (raw)
In-Reply-To: <20210913141345.27175-1-joro@8bytes.org>
From: Brijesh Singh <brijesh.singh@amd.com>
Now that KVM has basic support for version 2 of the GHCB specification,
bump the maximum supported protocol version. The SNP specific functions
are still missing, but those are only required when the Hypervisor
supports running SNP guests.
Signed-off-by: Brijesh Singh <brijesh.singh@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
---
arch/x86/kvm/svm/svm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/svm/svm.h b/arch/x86/kvm/svm/svm.h
index f019da28ff06..0650f51f7de0 100644
--- a/arch/x86/kvm/svm/svm.h
+++ b/arch/x86/kvm/svm/svm.h
@@ -539,7 +539,7 @@ void svm_vcpu_unblocking(struct kvm_vcpu *vcpu);
/* sev.c */
-#define GHCB_VERSION_MAX 1ULL
+#define GHCB_VERSION_MAX 2ULL
#define GHCB_VERSION_MIN 1ULL
#define GHCB_HV_FT_SUPPORTED 0
--
2.33.0
prev parent reply other threads:[~2021-09-13 14:20 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-13 14:13 [PATCH v3 0/4] KVM: SVM: Add initial GHCB protocol version 2 support Joerg Roedel
2021-09-13 14:13 ` [PATCH v3 1/4] KVM: SVM: Get rid of set_ghcb_msr() and *ghcb_msr_bits() functions Joerg Roedel
2021-09-24 20:04 ` Sean Christopherson
2021-09-13 14:13 ` [PATCH v3 2/4] KVM: SVM: Add support to handle AP reset MSR protocol Joerg Roedel
2021-09-13 14:13 ` [PATCH v3 3/4] KVM: SVM: Add support for Hypervisor Feature support " Joerg Roedel
2021-09-24 20:11 ` Sean Christopherson
2021-09-13 14:13 ` Joerg Roedel [this message]
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