From: Avi Kivity <avi@redhat.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] vga-pci and MMIO BAR
Date: Wed, 25 Jul 2012 16:59:03 +0300 [thread overview]
Message-ID: <500FFBA7.80700@redhat.com> (raw)
In-Reply-To: <1343223712.3715.50.camel@pasglop>
On 07/25/2012 04:41 PM, Benjamin Herrenschmidt wrote:
> On Wed, 2012-07-25 at 15:48 +0300, Avi Kivity wrote:
>> >> If not, we can add a second BAR, but it should disappear when running an
>> >> older machine type.
>> >
>> > Well, the IO ports in legacy space are still there. We can also make the
>> > "register BAR" exist in both mode or we can add a second BAR and have
>> > x86 "prefer" IO... whatever rocks your boat as long as it's a BAR, it's
>> > the legacy hole that's annoying for me :-)
>>
>> A guest created with -M old must look exactly the same as it did in an
>> older version of qemu, no extra BARs.
>
> Why ? Who cares ? Especially with vga -std which nobody uses in practice
> on x86...
We'll find out who cares when we break it.
We have a system in place to prevent intentional breakage, let's use it.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2012-07-25 13:59 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-25 3:57 [Qemu-devel] vga-pci and MMIO BAR Benjamin Herrenschmidt
2012-07-25 10:27 ` Avi Kivity
2012-07-25 10:53 ` Benjamin Herrenschmidt
2012-07-25 12:48 ` Avi Kivity
2012-07-25 13:41 ` Benjamin Herrenschmidt
2012-07-25 13:59 ` Avi Kivity [this message]
2012-07-25 22:01 ` Benjamin Herrenschmidt
2012-07-26 0:22 ` Benjamin Herrenschmidt
2012-07-26 1:08 ` Anthony Liguori
2012-07-26 1:18 ` Benjamin Herrenschmidt
2012-08-06 12:03 ` Gerd Hoffmann
2012-08-06 21:07 ` Benjamin Herrenschmidt
2012-08-10 15:27 ` Alon Levy
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