Re : [Xen-devel] Re: Patches for VGA-Passthrough XEN 4.2 unstable

[David TECHER <davidtecher@xxxxxxxx>]

For the tests I've done, I've tried the last driver .i.e 280.26.

 It failed.

So I use the old 275.33 and it works like a charm :) on

- XP Pro 32 bits SP3

- XP Pro 64 bits SP2

I can launch Crysis 2 and play the game :)

Have a look at http://www.youtube.com/watch?v=3SaYO0ERW44

Well I am a little limited with my graphic card (MSI GT 440 1GB for resolution and XP) but it is just enough for me

on a resolution like 1440x900 ou 1600x??? to play the game.

Do not forget to adapt dsd to the requires ranges of your graphic card.

This is what I did for my card

-----------------------------------------------------------------------------------

root@mercury:~# lspci |grep VGA
01:00.0 VGA compatible controller: nVidia Corporation Device 0de0 (rev a1)
root@mercury:~# dmesg | grep 01:00.0 |grep mem
[    3.124546] pci 0000:01:00.0: reg 10: [mem 0xfa000000-0xfaffffff]
[    3.124565] pci 0000:01:00.0: reg 14: [mem 0xc0000000-0xcfffffff 64bit pref]
[    3.124584] pci 0000:01:00.0: reg 1c: [mem 0xd0000000-0xd1ffffff 64bit pref]
[    3.124609] pci 0000:01:00.0: reg 30: [mem 0xfb000000-0xfb07ffff pref]
[    3.199436] vgaarb: device added: PCI:0000:01:00.0,decodes=io+mem,owns=io+mem,locks=none
[    3.199730] pci 0000:01:00.0: BAR 0: reserving [mem 0xfa000000-0xfaffffff flags 0x40200] (d=0, p=0)
[    3.199732] pci 0000:01:00.0: BAR 1: reserving [mem 0xc0000000-0xcfffffff flags 0x14220c] (d=0, p=0)
[    3.199735] pci 0000:01:00.0: BAR 3: reserving [mem 0xd0000000-0xd1ffffff flags 0x14220c] (d=0, p=0)
root@mercury:~# cat gfx_patch/dsdt.asl.patch
--- tools/firmware/hvmloader/acpi/dsdt.asl      2011-08-13 18:43:39.000000000 +0200
+++ tools/firmware/hvmloader/acpi/dsdt.asl      2011-08-13 18:58:25.000000000 +0200
@@ -173,15 +173,43 @@ DefinitionBlock ("DSDT.aml", "DSDT", 2,
                         0x00000000,
                         0x00020000)

+                    /* reserve MMIO BARs of gfx for 1:1 mapping */
                     DWordMemory(
                         ResourceProducer, PosDecode, MinFixed, MaxFixed,
                         Cacheable, ReadWrite,
                         0x00000000,
-                        0xF0000000,
-                        0xF4FFFFFF,
+                        0xFA000000,
+                        0xFAFFFFFF,
                         0x00000000,
-                        0x05000000,
-                        ,, _Y01)
+                        0x01000000)
+
+                    DWordMemory(
+                        ResourceProducer, PosDecode, MinFixed, MaxFixed,
+                        NonCacheable, ReadWrite,
+                        0x00000000,
+                        0xC0000000,
+                        0xCFFFFFFF,
+                        0x00000000,
+                        0x10000000)
+
+                    DWordMemory(
+                        ResourceProducer, PosDecode, MinFixed, MaxFixed,
+                        Cacheable, ReadWrite,
+                        0x00000000,
+                        0xD0000000,
+                        0xD1FFFFFF,
+                        0x00000000,
+                        0x02000000)
+
+                    DWordMemory(
+                        ResourceProducer, PosDecode, MinFixed, MaxFixed,
+                        Cacheable, ReadWrite,
+                        0x00000000,
+                        0xFB000000,
+                        0xFB07FFFF,
+                        0x00000000,
+                        0x00080000,
+                       ,, _Y01)
                 })

                 CreateDWordField(PRT0, \_SB.PCI0._CRS._Y01._MIN, MMIN)

---

De : komkon555 <komkon555@xxxxxxxxxx>
À : xen-devel@xxxxxxxxxxxxxxxxxxx
Envoyé le : Mardi 6 Septembre 2011 12h57
Objet : [Xen-devel] Re: Patches for VGA-Passthrough XEN 4.2 unstable

            Hallo. I tested the new patches. The patched version of
xen-unstable let start/shutdown Windows XP normally. But the current nvidia
driver is not yet functional:  question-sign in device-manager windows.
This problem is very sadly, because it makes no sense to use gfx-passthrough
for nvidia cards.
            Anyway thank you a lot for patches. I see some progress against
the old one.

P.S. Hardware as above.


--
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