From: Gerd Hoffmann <kraxel@redhat.com>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>,
Avi Kivity <avi@redhat.com>,
Anthony Liguori <anthony@codemonkey.ws>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] Cirrus bugs vs endian: how two bugs cancel each other out
Date: Mon, 06 Aug 2012 16:02:07 +0200 [thread overview]
Message-ID: <501FCE5F.4090909@redhat.com> (raw)
In-Reply-To: <1343704583.8227.10.camel@pasglop>
Hi,
> The latter sounds like a better long term approach, however it lacks
> backward compat with qemu-vga, but I doubt it's a big deal especially if
> we provide a working VBE ROM for x86.
A vbe rom isn't a big deal. You probably want support the 0x01CE and
0x01CF ports (on x86) so the vgabios running in real mode can easily
reach the bochs interface registers without a protected mode round trip
for mmio access.
I *think* for seavgabios this needs just a rebuild with an approximate
configuration (see roms/Makefile and roms/config.vga.*). The code
already checks whenever bar 0 is actually memory not mmio because this
is needed for the vmware vga too.
HTH,
Gerd
next prev parent reply other threads:[~2012-08-06 14:02 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-07-30 6:24 [Qemu-devel] Cirrus bugs vs endian: how two bugs cancel each other out Benjamin Herrenschmidt
2012-07-30 10:08 ` Avi Kivity
2012-07-30 11:20 ` Benjamin Herrenschmidt
2012-07-30 11:25 ` Avi Kivity
2012-07-30 11:54 ` Benjamin Herrenschmidt
2012-07-30 11:58 ` Avi Kivity
2012-07-30 12:08 ` Benjamin Herrenschmidt
2012-07-30 12:15 ` Avi Kivity
2012-07-30 12:23 ` Benjamin Herrenschmidt
2012-07-30 16:24 ` Alon Levy
2012-07-30 20:19 ` Anthony Liguori
2012-07-30 22:24 ` Benjamin Herrenschmidt
2012-07-31 8:10 ` Alon Levy
2012-08-01 14:35 ` Avi Kivity
2012-08-06 12:57 ` Gerd Hoffmann
2012-07-30 13:18 ` Anthony Liguori
2012-07-30 13:30 ` Avi Kivity
2012-07-30 13:45 ` Anthony Liguori
2012-07-30 13:55 ` Avi Kivity
2012-07-30 14:29 ` Anthony Liguori
2012-07-30 14:36 ` Avi Kivity
2012-07-30 16:01 ` Anthony Liguori
2012-07-30 23:47 ` Rusty Russell
2012-07-31 3:16 ` Benjamin Herrenschmidt
2012-08-06 14:02 ` Gerd Hoffmann [this message]
2012-08-06 21:13 ` Benjamin Herrenschmidt
2012-08-01 23:29 ` Andreas Färber
2012-08-06 13:47 ` Gerd Hoffmann
2012-08-06 14:35 ` Anthony Liguori
2012-07-31 8:20 ` Alon Levy
2012-07-30 22:15 ` Benjamin Herrenschmidt
2012-07-31 0:17 ` Anthony Liguori
2012-07-31 3:26 ` Benjamin Herrenschmidt
2012-08-06 13:20 ` Gerd Hoffmann
2012-08-06 21:16 ` Benjamin Herrenschmidt
2012-08-07 5:30 ` Gerd Hoffmann
2012-08-07 6:07 ` Benjamin Herrenschmidt
2012-07-30 16:19 ` Alon Levy
2012-08-01 15:42 ` Andreas Färber
2012-08-01 19:22 ` Anthony Liguori
2012-08-03 6:45 ` Alon Levy
2012-08-03 13:41 ` Anthony Liguori
2012-08-07 7:00 ` Alon Levy
2012-08-07 8:01 ` Gerd Hoffmann
2012-08-07 13:05 ` Erlon Cruz
2012-08-07 14:07 ` Gerd Hoffmann
2012-08-07 19:43 ` Erlon Cruz
2012-08-08 6:18 ` Gerd Hoffmann
2012-08-08 14:14 ` Erlon Cruz
2012-08-09 6:17 ` Gerd Hoffmann
2012-07-30 15:18 ` Blue Swirl
2012-07-30 15:30 ` Peter Maydell
2012-07-30 15:44 ` Blue Swirl
2012-07-31 8:44 ` ronnie sahlberg
2012-07-31 10:30 ` Benjamin Herrenschmidt
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