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From: "Gerd Hoffmann" <kraxel@redhat.com>
To: Anthony PERARD <anthony.perard@cloud.com>
Cc: Alejandro Vallejo <alejandro.vallejo@cloud.com>,
	devel@edk2.groups.io,  Ard Biesheuvel <ardb+tianocore@kernel.org>,
	Jiewen Yao <jiewen.yao@intel.com>
Subject: Re: [edk2-devel] [PATCH] OvmfPkg: Set PcdCpuMaxLogicalProcessorNumber in OvmfXen
Date: Thu, 25 Apr 2024 15:58:36 +0200	[thread overview]
Message-ID: <wfb7agedpzvqtibz7xxhgyizjk5wxpykpofah72z6b2iquoyyr@mroqha2inwa3> (raw)
In-Reply-To: <23141198-8725-4755-8f1f-2b35d6f3f4d7@perard>

  Hi,
 
> It's a bit more complicated than setting it at build time, but we can
> always ask Xen how many vcpu we have and set the PCD accordingly. This
> is something that can happen in OvmfPkg/XenPlatformPei module.

Exactly.

> But to be honest, I don't know if it's worth it, because I don't know the
> downside of having a higher value for PcdCpuMaxLogicalProcessorNumber.

Well, the downside is that you have to keep ovmf and xen in sync
manually.  Your call.  If you prefer to do it that way I have no
objections, just wanted point out the alternative approach.

take care,
  Gerd



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  reply	other threads:[~2024-04-25 13:58 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-24 13:36 [edk2-devel] [PATCH] OvmfPkg: Set PcdCpuMaxLogicalProcessorNumber in OvmfXen Alejandro Vallejo via groups.io
2024-04-25  7:31 ` Gerd Hoffmann
2024-04-25 10:42   ` Alejandro Vallejo via groups.io
2024-04-25 10:59     ` Anthony PERARD via groups.io
2024-04-25 13:58       ` Gerd Hoffmann [this message]
2024-06-28 14:25         ` Alejandro Vallejo via groups.io

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