Help Needed with Xen VGA Passthrough with Xen 4.2-unstable Changeset 25070 in Ubuntu 11.10 amd64 Dom0

["Teo En Ming (Zhang Enming)" <singapore.mr.teo.en.ming@gmail.com>]

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Dear Xen developers, David Techer and Others,

I am yet unable to passthrough my VGA adapter NVIDIA Geforce 8400 GS to 
Windows XP Home Edition SP3 HVM domU. When Windows XP HVM is started 
with XL, the monitor is _BLANK_. I am able to vnc into into the VNC 
server for Win XP HVM domU 192.168.1.2:5901, where the IP address is 
that of my dom0 eth0 interface. But doing a CTRL-ALT-1 and CTRL-ALT-2 on 
the QEMU console only show the words serial and parallel console.

Please refer to the attached PDF file Xen VGA Passthrough - Version 
1.0.pdf which I have written. All the patching, building, installation, 
configuration files, and error logs in /var/log/xen are provided in the 
PDF file which I have written. I hope the PDF file can get through to 
xen-devel mailing list. It is only 88 kB.

Please do not say I have not submitted any meaningful and required 
information required for troubleshooting. Please read my attached PDF 
document. It is only 9 pages.

I want to ask whether the case of the following HEXADECIMAL values matter.

/* reserve MMIO BARs of gfx for 1:1 mapping */
DWordMemory(
ResourceProducer, PosDecode, MinFixed, MaxFixed,
Cacheable, ReadWrite,
0x00000000,
0xD2000000,
0xD2FFFFFF,
0x00000000,
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)


Does it matter if all the hex values are in lower case?

Next,

*qemu-dm-WindowsXPHomeEditionSP3.log
*

domid: 1

Strip off blktap sub-type prefix to 
/var/lib/libvirt/images/Windows-XP-Home-Edition.img (drv 'aio')

Using file /var/lib/libvirt/images/Windows-XP-Home-Edition.img in 
read-write mode

Watching /local/domain/0/device-model/1/logdirty/cmd

Watching /local/domain/0/device-model/1/command

Watching /local/domain/1/cpu

qemu_map_cache_init nr_buckets = 10000 size 4194304

shared page at pfn feffd

buffered io page at pfn feffb

Guest uuid = a417a52a-68e4-48a1-89cc-3216184b8ed3

Register xen platform.

Done register platform.

platform_fixed_ioport: changed ro/rw state of ROM memory area. now is rw 
state.

xs_read(/local/domain/0/device-model/1/xen_extended_power_mgmt): read error

Log-dirty: no command yet.

I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0

I/O request not ready: 0, ptr: 0, port: 0, data: 0, count: 0, size: 0

vcpu-set: watch node error.

xs_read(/local/domain/1/log-throttling): read error

qemu: ignoring not-understood drive `/local/domain/1/log-throttling'

medium change watch on `/local/domain/1/log-throttling' - unknown 
device, ignored

dm-command: hot insert pass-through pci dev

register_real_device: Assigning real physical device 01:00.0 ...

pt_iomul_init: Error: pt_iomul_init can't open file /dev/xen/pci_iomul: 
No such file or directory: 0x1:0x0.0x0

pt_register_regions: IO region registered (size=0x01000000 
base_addr=0xd2000000)

pt_register_regions: IO region registered (size=0x10000000 
base_addr=0xc000000c)

pt_register_regions: IO region registered (size=0x02000000 
base_addr=0xd000000c)

pt_register_regions: IO region registered (size=0x00000080 
base_addr=0x0000d001)

pt_register_regions: Expansion ROM registered (size=0x00080000 
base_addr=0xd3000002)

setup_vga_pt: vga bios checksum is adjusted!

pt_msi_setup: msi mapped with pirq 37

pci_intx: intx=1

register_real_device: Real physical device 01:00.0 registered successfuly!

IRQ type = MSI-INTx

pt_bar_reg_read: first read BARs of gfx

pt_iomem_map: e_phys=d2000000 maddr=d2000000 type=0 len=16777216 index=0 
first_map=1

pt_bar_reg_read: first read BARs of gfx

pt_iomem_map: e_phys=c0000000 maddr=c0000000 type=8 len=268435456 
index=1 first_map=1



Please let me know whether I have missed out on any critical steps.



Thank you very much for your kind assistance.

Yours sincerely,

Teo En Ming (Zhang Enming)



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