From: Joerg Roedel <jroedel@xxxxxxx> 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. Regards, Joerg Changes v2->v3: - Rebased to v5.15-rc1 - Reworked GHCB_MSR access interfaces as suggested 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 (1): KVM: SVM: Get rid of set_ghcb_msr() and *ghcb_msr_bits() functions 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 | 9 +++ arch/x86/include/uapi/asm/svm.h | 1 + arch/x86/kvm/svm/sev.c | 115 +++++++++++++++++++----------- arch/x86/kvm/svm/svm.h | 3 +- arch/x86/kvm/x86.c | 5 +- 6 files changed, 98 insertions(+), 45 deletions(-) base-commit: 6880fa6c56601bb8ed59df6c30fd390cc5f6dd8f -- 2.33.0
