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Date: Thu, 14 Oct 2021 10:43:27 +0200
From: "Gerd Hoffmann" <kraxel@redhat.com>
To: Brijesh Singh <brijesh.singh@amd.com>
Cc: devel@edk2.groups.io, James Bottomley <jejb@linux.ibm.com>,
	Min Xu <min.m.xu@intel.com>, Jiewen Yao <jiewen.yao@intel.com>,
	Tom Lendacky <thomas.lendacky@amd.com>,
	Jordan Justen <jordan.l.justen@intel.com>,
	Ard Biesheuvel <ardb+tianocore@kernel.org>,
	Erdem Aktas <erdemaktas@google.com>,
	Michael Roth <Michael.Roth@amd.com>
Subject: Re: [PATCH v9 24/32] OvmfPkg/PlatformPei: set the Hypervisor Features PCD
Message-ID: <20211014084327.aqnxmhwzup2ucxtf@sirius.home.kraxel.org>
References: <20211013165713.727815-1-brijesh.singh@amd.com>
 <20211013165713.727815-25-brijesh.singh@amd.com>
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On Wed, Oct 13, 2021 at 11:57:05AM -0500, Brijesh Singh wrote:
> BZ: https://bugzilla.tianocore.org/show_bug.cgi?id=3275
> 
> Version 2 of the GHCB specification added the support to query the
> hypervisor feature bitmap. The feature bitmap provide information
> such as whether to use the AP create VmgExit or use the AP jump table
> approach to create the APs. The MpInitLib will use the
> PcdGhcbHypervisorFeatures to determine which method to use for creating
> the AP.
> 
> Query the hypervisor feature and set the PCD accordingly.

Acked-by: Gerd Hoffmann <kraxel@redhat.com>