Gentle ping. Any comments on these patches?
On Tue, Jan 25, 2022 at 03:16:19PM +0100, Joerg Roedel wrote:
> 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