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

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

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)