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 v6 7/7] KVM: SVM: Increase supported GHCB protocol version
Date: Tue, 25 Jan 2022 15:16:26 +0100 [thread overview]
Message-ID: <20220125141626.16008-8-joro@8bytes.org> (raw)
In-Reply-To: <20220125141626.16008-1-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/sev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kvm/svm/sev.c b/arch/x86/kvm/svm/sev.c
index 403f24498020..acf224fd29a2 100644
--- a/arch/x86/kvm/svm/sev.c
+++ b/arch/x86/kvm/svm/sev.c
@@ -2638,7 +2638,7 @@ static u64 ghcb_msr_cpuid_resp(u64 reg, u64 value)
}
/* The min/max GHCB version supported by KVM. */
-#define GHCB_VERSION_MAX 1ULL
+#define GHCB_VERSION_MAX 2ULL
#define GHCB_VERSION_MIN 1ULL
static u64 ghcb_msr_version_info(void)
--
2.34.1
next prev parent reply other threads:[~2022-01-25 14:22 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-25 14:16 [PATCH v6 0/7] KVM: SVM: Add initial GHCB protocol version 2 support Joerg Roedel
2022-01-25 14:16 ` [PATCH v6 1/7] KVM: SVM: Get rid of set_ghcb_msr() and *ghcb_msr_bits() functions Joerg Roedel
2022-01-25 14:16 ` [PATCH v6 2/7] KVM: SVM: Add helper to generate GHCB MSR verson info, and drop macro Joerg Roedel
2022-01-25 14:16 ` [PATCH v6 3/7] KVM: SVM: Move kvm_emulate_ap_reset_hold() to AMD specific code Joerg Roedel
2022-01-25 14:16 ` [PATCH v6 4/7] KVM: SVM: Set "released" on INIT-SIPI iff SEV-ES vCPU was in AP reset hold Joerg Roedel
2022-01-25 14:16 ` [PATCH v6 5/7] KVM: SVM: Add support to handle AP reset MSR protocol Joerg Roedel
2022-01-25 14:16 ` [PATCH v6 6/7] KVM: SVM: Add support for Hypervisor Feature support " Joerg Roedel
2022-01-25 14:16 ` Joerg Roedel [this message]
2022-02-25 10:40 ` [PATCH v6 0/7] KVM: SVM: Add initial GHCB protocol version 2 support Joerg Roedel
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