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Subject[PATCH v6 0/7] KVM: SVM: Add initial GHCB protocol version 2 support
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From: Joerg Roedel <jroedel@suse.de>

Hi,

here is a small set of patches which I originally took from the
pending SEV-SNP patch-sets to enable basic support for GHCB protocol
version 2. Meanwhile a couple of other patches from Sean
Christopherson have been added.

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/kvm/20211020124416.24523-1-joro@8bytes.org/

Regards,

Joerg

Changes v5->v6:

- Rebased to v5.17-rc1
- Added changes requested by Sean Christopherson

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 (2):
KVM: SVM: Add helper to generate GHCB MSR verson info, and drop macro
KVM: SVM: Set "released" on INIT-SIPI iff SEV-ES vCPU was in AP reset
hold

Tom Lendacky (1):
KVM: SVM: Add support to handle AP reset MSR protocol

arch/x86/include/asm/kvm_host.h | 2 +-
arch/x86/include/asm/sev-common.h | 18 ++--
arch/x86/include/uapi/asm/svm.h | 1 +
arch/x86/kvm/svm/sev.c | 169 ++++++++++++++++++++----------
arch/x86/kvm/svm/svm.c | 13 ++-
arch/x86/kvm/svm/svm.h | 10 +-
arch/x86/kvm/x86.c | 12 +--
7 files changed, 137 insertions(+), 88 deletions(-)


base-commit: e783362eb54cd99b2cac8b3a9aeac942e6f6ac07
--
2.34.1

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