Teo,
It looks like the patches that Wiedong has supplied already copy
the VGA bios from the card and re-execute it within the DomU, therefore there
should be no need to load it from a file.
I think you will have trouble for 2 reasons:
1) Bios re-execution, these Nvidia cards do not like having the
BIOS re-executed (from memcpy or file)
2) the Base Address Registers (BARs) will require 1:1 mappings
to the real addresses, which these patches dont cater for
If you want to make it work, you will need a card that works
without the 1:1 mapping and is more friendly to virtualisation.
ie:
http://www.nvidia.com/object/sli_multi_os.html
(as Andrew Lyon describes)
Dual Quadro FX 5800, 4800, and 3800 professional graphics
boards
Tm
From:
xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
[mailto:xen-devel-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of Mr. Teo En
Ming (Zhang Enming)
Sent: 28 August 2009 16:55
To: weidong.han@xxxxxxxxx
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx; 'Lin, Ben Y'; 'Kay, Allen M'; 'Jean
Guyader'; Keir.Fraser@xxxxxxxxxxxxx; bengheng@xxxxxxxxxxxxxx
Subject: Re: [Xen-devel] [PATCH 2/2] graphics passthrough with VT-d
Dear Weidong,
A big big thanks for the vga passthrough patches for xen 3.5-unstable!!! These
are eagerly anticipated patches. As I did not study computer science and
computer architecture, I won't be able to write those patches you guys at Intel
wrote.
I applied the following patches xen-gfx-passthrough.patch and qemu-gfx-passthrough.patch to xen
3.5-unstable without issues.
Then I tried to apply the 3rd patch you provided at http://lists.xensource.com/archives/html/xen-devel/2009-08/msg01047.html
I saved the following code
<CODE>
diff -r 494be76c1ad9 tools/firmware/hvmloader/Makefile
--- a/tools/firmware/hvmloader/Makefile Thu Aug 27 16:54:33 2009 +0800
+++ b/tools/firmware/hvmloader/Makefile Thu Aug 27 17:22:01 2009 +0800
@@ -50,6 +50,7 @@ roms.h: ../rombios/BIOS-bochs-latest ../
roms.h: ../rombios/BIOS-bochs-latest ../vgabios/VGABIOS-lgpl-latest.bin \
../vgabios/VGABIOS-lgpl-latest.cirrus.bin ../etherboot/eb-roms.h
sh ./mkhex rombios ../rombios/BIOS-bochs-latest > roms.h
+ sh ./mkhex vgabios_pt ../vgabios/vgabios-pt.bin >> roms.h
sh ./mkhex vgabios_stdvga ../vgabios/VGABIOS-lgpl-latest.bin >> roms.h
sh ./mkhex vgabios_cirrusvga \
../vgabios/VGABIOS-lgpl-latest.cirrus.bin >> roms.h
diff -r 494be76c1ad9 tools/firmware/hvmloader/hvmloader.c
--- a/tools/firmware/hvmloader/hvmloader.c Thu Aug 27 16:54:33 2009 +0800
+++ b/tools/firmware/hvmloader/hvmloader.c Thu Aug 27 17:23:00 2009 +0800
@@ -688,9 +688,9 @@ int main(void)
vgabios_sz = round_option_rom(sizeof(vgabios_stdvga));
break;
case VGA_pt:
- printf("Loading Gfx Video BIOS from 0xC0000 ...\n");- vgabios_sz =
- round_option_rom((*(uint8_t *)(VGABIOS_PHYSICAL_ADDRESS+2)) * 512);
+ printf("Loading Gfx Video BIOS from file ...\n");+ memcpy((void *)VGABIOS_PHYSICAL_ADDRESS, vgabios_pt,
sizeof(vgabios_pt));
+ vgabios_sz = round_option_rom(sizeof(vgabios_pt));
break;
default:
printf("No emulated VGA adaptor ...\n");</CODE>
as intel-gfx-passthru-patch-3.patch and then I tried to apply the patch to xen 3.5-unstable. I got errors. I think it's because the 3rd patch you provided is incomplete.
Here's my patching process:
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# find . -name vgabios
./tools/firmware/vgabios
./.hg/store/data/tools/firmware/vgabios
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# cp ~enming/vgabios-pt.bin tools/firmware/vgabios/
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# ls tools/firmware/vgabios/
biossums.c clext.c Makefile TODO vbe.h vgabios.h vgatables.h
BUGS COPYING Notes vbe.c vbetables-gen.c vgabios-pt.bin
ChangeLog dataseghack README vbe_display_api.txt vgabios.c vgafonts.h
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# pwd
/usr/src/xen-unstable.hg-vgapt
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# wget http://lists.xensource.com/archives/html/xen-devel/2009-08/bincPiiAf0QWg.bin
--2009-08-28 23:18:21-- http://lists.xensource.com/archives/html/xen-devel/2009-08/bincPiiAf0QWg.bin
Resolving lists.xensource.com... 70.42.241.110
Connecting to lists.xensource.com|70.42.241.110|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 12565 (12K) [application/octet-stream]
Saving to: `bincPiiAf0QWg.bin'
100%[======================================================================>] 12,565 30.7K/s in 0.4s
2009-08-28 23:18:22 (30.7 KB/s) - `bincPiiAf0QWg.bin' saved [12565/12565]
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# mv bincPiiAf0QWg.bin xen-gfx-passthrough.patch
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# vi xen-gfx-passthrough.patch
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# patch < xen-gfx-passthrough.patch
can't find file to patch at input line 4
Perhaps you should have used the -p or --strip option?
The text leading up to this was:
--------------------------
|diff -r 5d7e7a250267 tools/firmware/hvmloader/config.h
|--- a/tools/firmware/hvmloader/config.h Wed Aug 26 18:28:44 2009 +0800
|+++ b/tools/firmware/hvmloader/config.h Thu Aug 27 16:54:24 2009 +0800
--------------------------
File to patch: ^C
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# ex xen-gfx-passthrough.patch
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# patch -p1 < xen-gfx-passthrough.patch
patching file tools/firmware/hvmloader/config.h
patching file tools/firmware/hvmloader/hvmloader.c
patching file tools/libxc/ia64/xc_ia64_hvm_build.c
patching file tools/libxc/xc_hvm_build.c
patching file tools/libxc/xc_linux.c
patching file tools/libxc/xenctrl.h
patching file tools/libxc/xenguest.h
patching file tools/python/xen/lowlevel/xc/xc.c
patching file tools/python/xen/xend/XendConfig.py
Hunk #1 succeeded at 174 (offset -1 lines).
patching file tools/python/xen/xend/image.py
Hunk #1 succeeded at 780 (offset -6 lines).
Hunk #3 succeeded at 895 (offset -6 lines).
patching file tools/python/xen/xm/create.py
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# wget http://lists.xensource.com/archives/html/xen-devel/2009-08/binglLqkeq4Rj.bin
--2009-08-28 23:21:35-- http://lists.xensource.com/archives/html/xen-devel/2009-08/binglLqkeq4Rj.bin
Resolving lists.xensource.com... 70.42.241.110
Connecting to lists.xensource.com|70.42.241.110|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 9841 (9.6K) [application/octet-stream]
Saving to: `binglLqkeq4Rj.bin'
100%[======================================================================>] 9,841 24.3K/s in 0.4s
2009-08-28 23:21:36 (24.3 KB/s) - `binglLqkeq4Rj.bin' saved [9841/9841]
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# mv binglLqkeq4Rj.bin qemu-gfx-passthrough.patch
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# vi qemu-gfx-passthrough.patch
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# find . -name hw
./tools/ioemu-remote/hw
./.hg/store/data/tools/ioemu/hw
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# mv qemu-gfx-passthrough.patch tools/ioemu-remote/
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# cd tools/ioemu-remote/
[root@fedora11-x86-64-host ioemu-remote]# patch -p1 < qemu-
qemu-aio.h qemu-img.c qemu-sockets.c
qemu-binfmt-conf.sh qemu-img.texi qemu-tech.texi
qemu-char.c qemu-lock.h qemu-timer.h
qemu-char.h qemu-log.h qemu-tool.c
qemu-common.h qemu-malloc.c qemu-xen.h
qemu-doc.texi qemu-nbd.c
qemu-gfx-passthrough.patch qemu-nbd.texi
[root@fedora11-x86-64-host ioemu-remote]# patch -p1 < qemu-gfx-passthrough.patch
patching file hw/pass-through.c
patching file hw/pass-through.h
patching file hw/pc.c
patching file vl.c
[root@fedora11-x86-64-host ioemu-remote]# cd ..
[root@fedora11-x86-64-host tools]# cd ..
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# vi intel-gfx-passthru-patch-3.patch
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# patch -p1 < intel-gfx-passthru-patch-3.patch
patching file tools/firmware/hvmloader/Makefile
Hunk #1 FAILED at 50.
1 out of 1 hunk FAILED -- saving rejects to file tools/firmware/hvmloader/Makefile.rej
patching file tools/firmware/hvmloader/hvmloader.c
patch: **** malformed patch at line 24: sizeof(vgabios_pt));
[root@fedora11-x86-64-host xen-unstable.hg-vgapt]# vi intel-gfx-passthru-patch-3.patch
For everybody's convenience, I have attached intel-gfx-passthru-patch-3.patch and the firmware for my nVidia GeForce 8400 GS PCI Express x16 graphics card in this email.
Please help me complete intel-gfx-passthru-patch-3.patch as I really need it.
Thank you very much!!!
--
Mr. Teo En Ming (Zhang Enming) Dip(Mechatronics Engineering) BEng(Hons)(Mechanical Engineering)
Technical Support Engineer
Information Technology Department
Asiasoft Online Pte Ltd
Tampines Central 1 #04-01 Tampines Plaza
Singapore 529541
Republic of Singapore
Mobile: +65-9648-9798
MSN: teoenming@xxxxxxxxxxx
Alma Maters: Singapore Polytechnic, National University of Singapore
This patch supports basic gfx passthrough on QEMU:
- disable emulated VGA adpater if there is passthroughed gfx
- register/unregister legacy VGA I/O ports and MMIOs for passthroughed gfx
Signed-off-by: Ben Lin <ben.y.lin@xxxxxxxxx>
Signed-off-by: Weidong Han <weidong.han@xxxxxxxxx>
No virus found in this incoming message.
Checked by AVG - www.avg.com
Version: 8.5.409 / Virus Database: 270.13.69/2328 - Release Date: 08/27/09
18:02:00
No virus found in this outgoing message.
Checked by AVG - www.avg.com
Version: 8.5.409 / Virus Database: 270.13.71/2330 - Release Date: 08/27/09
18:02:00
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