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 v5 0/6] KVM: SVM: Add initial GHCB protocol version 2 support
Date: Wed, 20 Oct 2021 14:44:10 +0200 [thread overview]
Message-ID: <20211020124416.24523-1-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
are required:
- 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/lkml/20210929155330.5597-1-joro@8bytes.org/
Regards,
Joerg
Changes v4->v5:
- Removed stable SoB from patch 1
- Moved kvm_emulate_ap_reset_hold() and all related code in
later patches to SVM specific code, as suggested by Sean.
Brijesh Singh (2):
KVM: SVM: Add support for Hypervisor Feature support MSR protocol
KVM: SVM: Increase supported GHCB protocol version
Joerg Roedel (2):
KVM: SVM: Get rid of set_ghcb_msr() and *ghcb_msr_bits() functions
KVM: SVM: Move kvm_emulate_ap_reset_hold() to AMD specific code
Sean Christopherson (1):
KVM: SVM: Add helper to generate GHCB MSR verson info, and drop macro
Tom Lendacky (1):
KVM: SVM: Add support to handle AP reset MSR protocol
arch/x86/include/asm/kvm_host.h | 3 +-
arch/x86/include/asm/sev-common.h | 14 +--
arch/x86/include/uapi/asm/svm.h | 1 +
arch/x86/kvm/svm/sev.c | 141 +++++++++++++++++++++---------
arch/x86/kvm/svm/svm.h | 13 +--
arch/x86/kvm/x86.c | 11 +--
6 files changed, 120 insertions(+), 63 deletions(-)
base-commit: 73f122c4f06f650ddf7f7410d8510db1a92a16a0
--
2.33.1
next reply other threads:[~2021-10-20 12:44 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-20 12:44 Joerg Roedel [this message]
2021-10-20 12:44 ` [PATCH v5 1/6] KVM: SVM: Get rid of set_ghcb_msr() and *ghcb_msr_bits() functions Joerg Roedel
2021-10-20 12:44 ` [PATCH v5 2/6] KVM: SVM: Add helper to generate GHCB MSR verson info, and drop macro Joerg Roedel
2021-10-20 12:44 ` [PATCH v5 3/6] KVM: SVM: Move kvm_emulate_ap_reset_hold() to AMD specific code Joerg Roedel
2021-10-20 14:29 ` Sean Christopherson
2021-10-20 12:44 ` [PATCH v5 4/6] KVM: SVM: Add support to handle AP reset MSR protocol Joerg Roedel
2021-10-20 17:40 ` Sean Christopherson
2021-10-20 18:13 ` Tom Lendacky
2021-10-20 18:38 ` Sean Christopherson
2021-10-20 18:36 ` Tom Lendacky
2021-10-20 12:44 ` [PATCH v5 5/6] KVM: SVM: Add support for Hypervisor Feature support " Joerg Roedel
2021-10-20 12:44 ` [PATCH v5 6/6] KVM: SVM: Increase supported GHCB protocol version Joerg Roedel
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