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From: Gerd Hoffmann <kraxel@redhat.com>
To: Laszlo Ersek <lersek@redhat.com>,
	qemu devel list <qemu-devel@nongnu.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>,
	Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] [RFC] q35/mch: implement extended TSEG sizes
Date: Wed, 07 Jun 2017 07:52:50 +0200	[thread overview]
Message-ID: <1496814770.5126.1.camel@redhat.com> (raw)
In-Reply-To: <20170530212614.18343-1-lersek@redhat.com>

  Hi,

Patch looks sane overall.

> Invent a new, QEMU-specific register in the config space of the DRAM
> Controller, at offset 0x50, in order to allow guest firmware to query
> the
> TSEG (SMRAM) size.

Hmm, 0x50 appears to be the only unused config space register in the
specs.  I suspect in reality it isn't unused but undocumented.  I don't
have a better idea though, and in practice it probably isn't much of a
problem.

cheers,
  Gerd

  parent reply	other threads:[~2017-06-07  5:53 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-30 21:26 [Qemu-devel] [RFC] q35/mch: implement extended TSEG sizes Laszlo Ersek
2017-06-06 16:58 ` Laszlo Ersek
2017-06-07  5:52 ` Gerd Hoffmann [this message]
2017-06-07  9:01   ` Laszlo Ersek

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