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Subject: Re: [PATCH v9 13/46] OvmfPkg/VmgExitLib: Add support for IOIO_PROT NAE events
To: Tom Lendacky <thomas.lendacky@amd.com>, devel@edk2.groups.io
Cc: Brijesh Singh <brijesh.singh@amd.com>,
 Ard Biesheuvel <ard.biesheuvel@arm.com>, Eric Dong <eric.dong@intel.com>,
 Jordan Justen <jordan.l.justen@intel.com>, Liming Gao
 <liming.gao@intel.com>, Michael D Kinney <michael.d.kinney@intel.com>,
 Ray Ni <ray.ni@intel.com>
References: <cover.1591363657.git.thomas.lendacky@amd.com>
 <7b771ecff3a75639add17bf8a7753519bff05143.1591363657.git.thomas.lendacky@amd.com>
From: "Laszlo Ersek" <lersek@redhat.com>
Message-ID: <12ef794b-a60f-1437-56c6-67d3bc706e55@redhat.com>
Date: Wed, 10 Jun 2020 14:34:16 +0200
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On 06/05/20 15:27, Tom Lendacky wrote:
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=2198
> 
> Under SEV-ES, a IOIO_PROT intercept generates a #VC exception. VMGEXIT
> must be used to allow the hypervisor to handle this intercept.
> 
> Add support to construct the required GHCB values to support a IOIO_PROT
> NAE event.  Parse the instruction that generated the #VC exception,
> setting the required register values in the GHCB and creating the proper
> SW_EXITINFO1 value in the GHCB.
> 
> Cc: Jordan Justen <jordan.l.justen@intel.com>
> Cc: Laszlo Ersek <lersek@redhat.com>
> Cc: Ard Biesheuvel <ard.biesheuvel@arm.com>
> Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
> ---
>  OvmfPkg/Include/IndustryStandard/InstructionParsing.h |  83 +++
>  OvmfPkg/Library/VmgExitLib/VmgExitVcHandler.c         | 560 +++++++++++++++++++-
>  2 files changed, 629 insertions(+), 14 deletions(-)

Looks good, thanks for the updates.

Acked-by: Laszlo Ersek <lersek@redhat.com>