On 21/06/2024 18:15, Michael Roth wrote: > From: Brijesh Singh <brijesh.singh@xxxxxxx> > > Version 2 of GHCB specification added support for the SNP Guest Request > Message NAE event. The event allows for an SEV-SNP guest to make > requests to the SEV-SNP firmware through hypervisor using the > SNP_GUEST_REQUEST API defined in the SEV-SNP firmware specification. > > This is used by guests primarily to request attestation reports from > firmware. There are other request types are available as well, but the > specifics of what guest requests are being made are opaque to the > hypervisor, which only serves as a proxy for the guest requests and > firmware responses. > > Implement handling for these events. > > Signed-off-by: Brijesh Singh <brijesh.singh@xxxxxxx> > Co-developed-by: Alexey Kardashevskiy <aik@xxxxxxx> > Signed-off-by: Alexey Kardashevskiy <aik@xxxxxxx> > Co-developed-by: Ashish Kalra <ashish.kalra@xxxxxxx> > Signed-off-by: Ashish Kalra <ashish.kalra@xxxxxxx> > Reviewed-by: Tom Lendacky <thomas.lendacky@xxxxxxx> > [mdr: ensure FW command failures are indicated to guest, drop extended > request handling to be re-written as separate patch, massage commit] > Signed-off-by: Michael Roth <michael.roth@xxxxxxx> > Message-ID: <20240501085210.2213060-19-michael.roth@xxxxxxx> > Signed-off-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> Reviewed-by: Liam Merwick <liam.merwick@xxxxxxxxxx> > --- > arch/x86/kvm/svm/sev.c | 73 ++++++++++++++++++++++++++++++++++ > include/uapi/linux/sev-guest.h | 9 +++++ > 2 files changed, 82 insertions(+) >
