From: Avi Kivity <avi@redhat.com>
To: Alexander Graf <agraf@suse.de>
Cc: "Anthony Liguori" <aliguori@us.ibm.com>,
"Jan Kiszka" <jan.kiszka@siemens.com>,
qemu-devel <qemu-devel@nongnu.org>,
"Blue Swirl" <blauwirbel@gmail.com>,
"Andreas Färber" <andreas.faerber@web.de>,
"Gerd Hoffmann" <kraxel@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v3 5/6] vga: Use linear mapping + dirty logging in chain 4 memory access mode
Date: Wed, 14 Sep 2011 11:35:47 +0300 [thread overview]
Message-ID: <4E706763.8020706@redhat.com> (raw)
In-Reply-To: <58B7465A-925F-4732-A557-AB57BEFCD64B@suse.de>
On 09/14/2011 11:27 AM, Alexander Graf wrote:
> On 14.09.2011, at 10:24, Jan Kiszka wrote:
>
> > On 2011-09-14 10:22, Avi Kivity wrote:
> >> On 09/14/2011 11:20 AM, Jan Kiszka wrote:
> >>>>
> >>>> Anyway PCI supports the vga region at 0xa0000-0xc0000. Where is it
> >>>> supposed to be mapped?
> >>>
> >>> ...but not all PCI bridges make use of this feature / forward legacy
> >>> requests.
> >>>
> >>
> >> Then this should be fixed in the bridge?
> >
> > Yes, it's a PPC bug.
>
> So how does the bridge not forward it then?
>
I expect that currently vga adds the region to pci_address_space(). We
need to create a pci_address_space_vga() function that returns a region
for vga to use. Then add or remove the region to pci_address_space(),
within the bridge code, depending on whether the bridge forwards vga
accesses or not.
(assuming I understood the problem correctly - not sure)
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2011-09-14 8:35 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-08-22 17:12 [Qemu-devel] [PATCH v3 0/6] vga: dirty log cleanup, more linear mapping Jan Kiszka
2011-08-22 17:12 ` [Qemu-devel] [PATCH v3 1/6] vmware-vga: Register reset service Jan Kiszka
2011-08-22 17:12 ` [Qemu-devel] [PATCH v3 2/6] vmware-vga: Disable verbose mode Jan Kiszka
2011-08-22 17:12 ` [Qemu-devel] [PATCH v3 3/6] vmware-vga: Remove dead DIRECT_VRAM mode Jan Kiszka
2011-08-22 17:12 ` [Qemu-devel] [PATCH v3 4/6] vmware-vga: Eliminate vga_dirty_log_restart Jan Kiszka
2011-08-22 17:12 ` [Qemu-devel] [PATCH v3 5/6] vga: Use linear mapping + dirty logging in chain 4 memory access mode Jan Kiszka
2011-08-25 7:19 ` Avi Kivity
2011-08-25 9:07 ` Jan Kiszka
2011-08-25 9:16 ` Avi Kivity
2011-08-25 9:21 ` Jan Kiszka
2011-08-25 10:45 ` Avi Kivity
2011-08-25 10:51 ` Jan Kiszka
2011-08-25 11:19 ` Avi Kivity
2011-08-25 11:28 ` Jan Kiszka
2011-09-12 15:20 ` Alexander Graf
2011-09-12 15:33 ` Jan Kiszka
2011-09-12 15:45 ` Andreas Färber
2011-09-12 15:49 ` Jan Kiszka
2011-09-12 15:57 ` Jan Kiszka
2011-09-13 7:39 ` Alexander Graf
2011-09-13 8:14 ` Jan Kiszka
2011-09-13 8:17 ` Alexander Graf
2011-09-13 8:19 ` Andreas Färber
2011-09-13 8:40 ` Alexander Graf
2011-09-13 9:00 ` Jan Kiszka
2011-09-13 9:42 ` Alexander Graf
2011-09-13 11:34 ` Jan Kiszka
2011-09-13 19:39 ` Blue Swirl
2011-09-14 7:11 ` Avi Kivity
2011-09-14 7:42 ` Alexander Graf
2011-09-14 8:02 ` Jan Kiszka
2011-09-14 8:17 ` Avi Kivity
2011-09-14 8:20 ` Jan Kiszka
2011-09-14 8:22 ` Avi Kivity
2011-09-14 8:24 ` Jan Kiszka
2011-09-14 8:27 ` Alexander Graf
2011-09-14 8:33 ` Jan Kiszka
2011-09-14 8:35 ` Avi Kivity [this message]
2011-09-14 20:06 ` Blue Swirl
2011-09-14 20:14 ` Alexander Graf
2011-09-14 20:16 ` Avi Kivity
2011-09-14 20:35 ` Alexander Graf
2011-09-14 20:42 ` Richard Henderson
2011-09-14 21:27 ` Andreas Färber
2011-09-14 21:41 ` Alexander Graf
2011-09-15 1:24 ` Benjamin Herrenschmidt
2011-09-15 7:32 ` Avi Kivity
2011-09-15 7:35 ` Alexander Graf
2011-09-15 10:01 ` Benjamin Herrenschmidt
2011-09-15 11:31 ` Avi Kivity
2011-09-17 21:40 ` Blue Swirl
2011-09-18 11:28 ` Avi Kivity
2011-09-19 9:15 ` Alexander Graf
2011-09-19 9:22 ` Avi Kivity
2011-09-19 9:36 ` Alexander Graf
2011-09-19 9:48 ` Avi Kivity
2011-09-14 20:15 ` Avi Kivity
2011-09-14 20:25 ` Blue Swirl
2011-09-15 7:30 ` Avi Kivity
2011-09-13 9:43 ` Andreas Färber
2011-09-12 20:21 ` Blue Swirl
2011-09-13 6:54 ` Alexander Graf
2011-09-13 7:51 ` Avi Kivity
2011-09-13 7:54 ` Alexander Graf
2011-09-13 8:10 ` Avi Kivity
2011-08-22 17:12 ` [Qemu-devel] [PATCH v3 6/6] vga: Drop some unused fields Jan Kiszka
2011-08-22 20:18 ` [Qemu-devel] [PATCH v3 0/6] vga: dirty log cleanup, more linear mapping Anthony Liguori
2011-08-22 20:36 ` Jan Kiszka
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