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From: Gerd Hoffmann <kraxel@redhat.com>
Date: Thu, 23 Apr 2015 10:34:05 +0200
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Subject: Re: [Qemu-devel] [PATCH 5/6] [wip] tseg, part1, not (yet) tested
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To: Laszlo Ersek <lersek@redhat.com>
Cc: pbonzini@redhat.com, qemu-devel@nongnu.org, mst@redhat.com

  Hi,

> I'll ask Jordan too about the dynamic feature detection, because there's
> another big hurdle with it (selecting a LockBox library instance at
> runtime, dependent on the presence of SMM). Deciding about SMM support
> at build time would make things hugely easier (because that's how
> firmware for physical platforms is built as well).

piix/q35 falls into the same category I guess.  We are just lucky that
(a) alot of the chipset-specific initialization is not needed on qemu
and (b) we can hide the remaining differences in ovmf-specific modules.

cheers,
  Gerd