Re: [Xen-users] Help with VGA passthrough

[Gordan Bobic <gordan@xxxxxxxxxx>]

On 2014-06-26 16:20, Brian Menges wrote:
> [root@xs ~]# lsmod | grep pciback
> [root@xs ~]# echo $?
> 1
> [root@xs ~]# modprobe pciback
> FATAL: Module pciback not found.
Try:
modprobe xen-pciback

> Xenserver 6.2 appears to be a CentOS 5.x (maybe 5.6) box.
Ah - my bad. It must be Xenserver 7 that is based on EL6.

> I installed the proprietary drivers in an Ubuntu 12.04 LTS VM, and it
> won't get past the splash screen (xencenter display) now after gpu
> assignment (console or gui). The Ubuntu drivers appear to do nothing;
> however:
>
> $ dmesg | grep -E '(fglrx|ATI|radeon|pci)'
> [    0.188377] PCI: Using host bridge windows from ACPI; if necessary,
> use "pci=nocrs" and report a bug
> [    0.251997] pci_bus 0000:00: root bus resource [bus 00-ff]
> [    0.252000] pci_bus 0000:00: root bus resource [io  0x0000-0x0cf7]
> [    0.252000] pci_bus 0000:00: root bus resource [io  0x0d00-0xffff]
> [    0.252000] pci_bus 0000:00: root bus resource [mem 
> 0x000a0000-0x000bffff]
> [    0.252000] pci_bus 0000:00: root bus resource [mem 
> 0xe0000000-0xfbffffff]
> [    0.252062] pci 0000:00:00.0: [8086:1237] type 00 class 0x060000
> [    0.253138] pci 0000:00:01.0: [8086:7000] type 00 class 0x060100
> [    0.254100] pci 0000:00:01.1: [8086:7010] type 00 class 0x010180
> [    0.254730] pci 0000:00:01.1: reg 0x20: [io  0xc320-0xc32f]
> [    0.255652] pci 0000:00:01.2: [8086:7020] type 00 class 0x0c0300
> [    0.256222] pci 0000:00:01.2: reg 0x20: [io  0xc300-0xc31f]
> [    0.257100] pci 0000:00:01.3: [8086:7113] type 00 class 0x068000
> [    0.257833] pci 0000:00:01.3: quirk: [io  0x1f40-0x1f7f] claimed by
> PIIX4 ACPI
> [    0.258529] pci 0000:00:02.0: [1013:00b8] type 00 class 0x030000
> [    0.258684] pci 0000:00:02.0: reg 0x10: [mem 0xf0000000-0xf1ffffff 
> pref]
> [    0.258799] pci 0000:00:02.0: reg 0x14: [mem 0xf3044000-0xf3044fff]
> [    0.259758] pci 0000:00:03.0: [5853:0001] type 00 class 0x010000
> [    0.259970] pci 0000:00:03.0: reg 0x10: [io  0xc000-0xc0ff]
> [    0.260101] pci 0000:00:03.0: reg 0x14: [mem 0xf2000000-0xf2ffffff 
> pref]
> [    0.261722] pci 0000:00:05.0: [1002:6779] type 00 class 0x030000
> [    0.268018] pci 0000:00:05.0: reg 0x10: [mem 0xe0000000-0xefffffff
> 64bit pref]
> [    0.276017] pci 0000:00:05.0: reg 0x18: [mem 0xf3000000-0xf301ffff 
> 64bit]
> [    0.284008] pci 0000:00:05.0: reg 0x20: [io  0xc200-0xc2ff]
> [    0.300024] pci 0000:00:05.0: reg 0x30: [mem 0xf3020000-0xf303ffff 
> pref]
> [    0.301115] pci 0000:00:05.0: supports D1 D2
> [    0.301887] pci 0000:00:06.0: [1002:aa98] type 00 class 0x040300
> [    0.302169] pci 0000:00:06.0: reg 0x10: [mem 0xf3040000-0xf3043fff 
> 64bit]
> [    0.303969] pci 0000:00:06.0: supports D1 D2
> [    0.332081] PCI: pci_cache_line_size set to 64 bytes
> [    1.309926] pci_bus 0000:00: resource 4 [io  0x0000-0x0cf7]
> [    1.309930] pci_bus 0000:00: resource 5 [io  0x0d00-0xffff]
> [    1.309933] pci_bus 0000:00: resource 6 [mem 0x000a0000-0x000bffff]
> [    1.309935] pci_bus 0000:00: resource 7 [mem 0xe0000000-0xfbffffff]
> [    1.310908] pci 0000:00:00.0: Limiting direct PCI/PCI transfers
> [    1.310954] pci 0000:00:01.0: PIIX3: Enabling Passive Release
> [    1.311000] pci 0000:00:01.0: Activating ISA DMA hang workarounds
> [    1.312047] pci 0000:00:02.0: Boot video device
> [    1.312215] pci 0000:00:05.0: Boot video device
> [    1.534735] pci_hotplug: PCI Hot Plug PCI Core version: 0.5
> [    1.534744] pciehp: PCI Express Hot Plug Controller Driver version: 
> 0.4
> [    1.576902] ehci-pci: EHCI PCI platform driver
> [    1.576942] ohci-pci: OHCI PCI platform driver
> [    1.692123] xenbus_probe_frontend: Device with no driver: 
> device/pci/0
> [    6.180380] fglrx: module license 'Proprietary. (C) 2002 - ATI
> Technologies, Starnberg, GERMANY' taints kernel.
> [    6.185911] fglrx: module verification failed: signature and/or
> required key missing - tainting kernel
> [    6.193979] <6>[fglrx] Maximum main memory to use for locked dma
> buffers: 7247 MBytes.
> [    6.194094] <6>[fglrx]   vendor: 1002 device: 6779 count: 1
> [    6.194835] <6>[fglrx] ioport: bar 4, base 0xc200, size: 0x100
> [    6.195932] <6>[fglrx] Kernel PAT support is enabled
> [    6.195960] <6>[fglrx] module loaded - fglrx 14.10.2 [May  5 2014]
> with 1 minors
> [    6.753214] input: QEMU 0.10.2 QEMU USB Tablet as
> /devices/pci0000:00/0000:00:01.2/usb1/1-2/1-2:1.0/input/input3
> [    6.764783] input: HD-Audio Generic HDMI/DP,pcm=3 as
> /devices/pci0000:00/0000:00:06.0/sound/card0/input4
> [   11.494543] <6>[fglrx] Firegl kernel thread PID: 1260
> [   11.494773] <6>[fglrx] Firegl kernel thread PID: 1261
> [   11.495004] <6>[fglrx] Firegl kernel thread PID: 1262
> [   11.495154] <6>[fglrx] IRQ 78 Enabled
> [   11.541569] <6>[fglrx] Reserved FB block: Shared offset:0, 
> size:1000000
> [   11.541571] <6>[fglrx] Reserved FB block: Unshared offset:f838000, 
> size:4000
> [   11.541572] <6>[fglrx] Reserved FB block: Unshared offset:f83c000,
> size:4c4000
> [   11.541573] <6>[fglrx] Reserved FB block: Unshared offset:7fff4000, 
> size:c000
> So my last boot I got in via SSH, however the displays aren't working.
> I first tried the HDMI (HDMI - HDMI) display then the DVI (DVI ->
> DisplayPort) display and my monitor isn't showing anything. Wodnering
> what I'm missing to get this display up and running.
So it looks like fglrx loads successfully and finds
the hardware. So far so good. Can you check what your
Xorg log says?

Gordan

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