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From: Gerd Hoffmann <kraxel@redhat.com>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Daniel P. Berrangé" <berrange@redhat.com>,
	qemu-devel <qemu-devel@nongnu.org>,
	"Sergio Lopez" <slp@redhat.com>,
	"Eduardo Habkost" <eduardo@habkost.net>,
	"Marcel Apfelbaum" <marcel.apfelbaum@gmail.com>,
	"Richard Henderson" <richard.henderson@linaro.org>,
	kvm <kvm@vger.kernel.org>,
	"Marcelo Tosatti" <mtosatti@redhat.com>
Subject: Re: [PATCH v4] x86: add etc/phys-bits fw_cfg file
Date: Mon, 10 Oct 2022 09:30:20 +0200	[thread overview]
Message-ID: <20221010073020.d3bfkm6xi55a7dqd@sirius.home.kraxel.org> (raw)
In-Reply-To: <20221007094427-mutt-send-email-mst@kernel.org>

  Hi,

> > > > Given newer processors have more than 40 and for older ones we know
> > > > the possible values for the two relevant x86 vendors we could do
> > > > something along the lines of:
> > > >
> > > >    phys-bits >= 41                   -> valid
> > > >    phys-bits == 40    + AuthenticAMD -> valid
> > > >    phys-bits == 36,39 + GenuineIntel -> valid
> > > >    everything else                   -> invalid

> I dropped the patch for now.

You can drop it forever.

For the mail archives and anyone interested:  The approach outlined
above appears to work well, patches just landed in edk2 master branch.
Next edk2 stable tag (2022-11) will have it.

take care,
  Gerd



      reply	other threads:[~2022-10-10 12:22 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-22 10:14 [PATCH v4] x86: add etc/phys-bits fw_cfg file Gerd Hoffmann
2022-09-22 11:24 ` Daniel P. Berrangé
2022-09-22 11:56   ` Michael S. Tsirkin
2022-09-22 12:20   ` Gerd Hoffmann
2022-09-22 12:38     ` Paolo Bonzini
2022-09-22 14:16       ` Gerd Hoffmann
2022-09-22 17:13         ` Jim Mattson
2022-09-22 19:49           ` Paolo Bonzini
2022-09-22 20:33       ` Gerd Hoffmann
2022-09-23  6:00         ` Paolo Bonzini
2022-09-23  6:23           ` Gerd Hoffmann
2022-10-07 13:44             ` Michael S. Tsirkin
2022-10-10  7:30               ` Gerd Hoffmann [this message]

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