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>,
Brijesh Singh <brijesh.singh@amd.com>,
Tom Lendacky <thomas.lendacky@amd.com>,
linux-kernel@vger.kernel.org, kvm@vger.kernel.org,
x86@kernel.org, Joerg Roedel <jroedel@suse.de>
Subject: [PATCH 0/3] kvm: svm: Add initial GHCB protocol version 2 support
Date: Tue, 13 Jul 2021 11:35:43 +0200 [thread overview]
Message-ID: <20210713093546.7467-1-joro@8bytes.org> (raw)
From: Joerg Roedel <jroedel@suse.de>
Hi,
here is a small set of patches which I took from the pending SEV-SNP
patch-sets to enable basic support for GHCB protocol version 2.
When SEV-SNP is not supported, only two new MSR protocol VMGEXIT calls
need to be supported:
- MSR-based AP-reset-hold
- MSR-based HV-feature-request
These calls are implemented by here and then the protocol is lifted to
version 2.
This is submitted separately because the MSR-based AP-reset-hold call
is required to support kexec/kdump in SEV-ES guests.
Regards,
Joerg
Brijesh Singh (2):
KVM: SVM: Add support for Hypervisor Feature support MSR protocol
KVM: SVM: Increase supported GHCB protocol version
Tom Lendacky (1):
KVM: SVM: Add support to handle AP reset MSR protocol
arch/x86/include/asm/sev-common.h | 5 +++
arch/x86/include/uapi/asm/svm.h | 1 +
arch/x86/kvm/svm/sev.c | 63 +++++++++++++++++++++++++++----
arch/x86/kvm/svm/svm.h | 4 +-
4 files changed, 64 insertions(+), 9 deletions(-)
base-commit: e73f0f0ee7541171d89f2e2491130c7771ba58d3
--
2.31.1
next reply other threads:[~2021-07-13 9:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-13 9:35 Joerg Roedel [this message]
2021-07-13 9:35 ` [PATCH 1/3] KVM: SVM: Add support to handle AP reset MSR protocol Joerg Roedel
2021-07-13 9:35 ` [PATCH 2/3] KVM: SVM: Add support for Hypervisor Feature support " Joerg Roedel
2021-07-13 13:35 ` Tom Lendacky
2021-07-13 14:59 ` Joerg Roedel
2021-07-13 9:35 ` [PATCH 3/3] KVM: SVM: Increase supported GHCB protocol version Joerg Roedel
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