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 v4 0/5] KVM: SVM: Add initial GHCB protocol version 2 support
Date: Wed, 29 Sep 2021 17:53:25 +0200 [thread overview]
Message-ID: <20210929155330.5597-1-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 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.
The previous version can be found here:
https://lore.kernel.org/kvm/20210913141345.27175-1-joro@8bytes.org/
Regards,
Joerg
Changes v3->v4:
- Rebased to kvm/queue
- Addressed Sean's review comments on v3
Brijesh Singh (2):
KVM: SVM: Add support for Hypervisor Feature support MSR protocol
KVM: SVM: Increase supported GHCB protocol version
Joerg Roedel (1):
KVM: SVM: Get rid of set_ghcb_msr() and *ghcb_msr_bits() functions
Sean Christopherson (1):
KVM: SVM: Add helper to generate GHCB MSR version info, and drop macro
Tom Lendacky (1):
KVM: SVM: Add support to handle AP reset MSR protocol
arch/x86/include/asm/kvm_host.h | 10 ++-
arch/x86/include/asm/sev-common.h | 14 ++--
arch/x86/include/uapi/asm/svm.h | 1 +
arch/x86/kvm/svm/sev.c | 131 ++++++++++++++++++++----------
arch/x86/kvm/svm/svm.h | 5 --
arch/x86/kvm/x86.c | 5 +-
6 files changed, 112 insertions(+), 54 deletions(-)
base-commit: 8960bc57dfb78f5de088af800576d9096282dca2
--
2.33.0
next reply other threads:[~2021-09-29 15:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-29 15:53 Joerg Roedel [this message]
2021-09-29 15:53 ` [PATCH v4 1/5] KVM: SVM: Get rid of set_ghcb_msr() and *ghcb_msr_bits() functions Joerg Roedel
2021-10-13 22:07 ` Sean Christopherson
2021-09-29 15:53 ` [PATCH v4 2/5] KVM: SVM: Add helper to generate GHCB MSR version info, and drop macro Joerg Roedel
2021-09-29 15:53 ` [PATCH v4 3/5] KVM: SVM: Add support to handle AP reset MSR protocol Joerg Roedel
2021-10-13 22:04 ` Sean Christopherson
2021-10-20 12:32 ` Joerg Roedel
2021-09-29 15:53 ` [PATCH v4 4/5] KVM: SVM: Add support for Hypervisor Feature support " Joerg Roedel
2021-09-29 15:53 ` [PATCH v4 5/5] KVM: SVM: Increase supported GHCB protocol version Joerg Roedel
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