[Xen-devel] computer with xen 4.0.0 won't boot with pci vga card

[Jens Krehbiel-Gräther <xen@xxxxxxxxxxxxxxxxxx>]

Hi!

When I install a PCI (not PCIe) graphics card on the motherboard, the 
system will not start. It starts booting the hypervisor and stops at:
...
[    0.146034] pci 0000:05:00.1: reg 18 io port: [0xd800-0xd807]
[    0.146042] pci 0000:05:00.1: reg 1c io port: [0xd480-0xd483]
[    0.146051] pci 0000:05:00.1: reg 20 io port: [0xd400-0xd40f]
[    0.146187] pci 0000:00:04.0: bridge io port: [0xd000-0xdfff]
[    0.146191] pci 0000:00:04.0: bridge 32bit mmio: [0xfe800000-0xfe8fffff]
[    0.146244] pci 0000:04:00.0: reg 10 64bit mmio: [0xfe7ff800-0xfe7fffff]
[    0.146252] pci 0000:04:00.0: reg 18 io port: [0xc800-0xc8ff]
[    0.146309] pci 0000:04:00.0: supports D2
[    0.146311] pci 0000:04:00.0: PME# supported from D2 D3hot D3cold
[    0.146431] pci 0000:04:00.0: PME# disabled
[    0.146610] pci 0000:00:05.0: bridge io port: [0xc000-0xcfff]
[    0.146614] pci 0000:00:05.0: bridge 32bit mmio: [0xfe700000-0xfe7fffff]
[    0.146668] pci 0000:03:00.0: reg 10 64bit mmio: [0xfe6fc000-0xfe6fffff]
[    0.146676] pci 0000:03:00.0: reg 18 io port: [0xb800-0xb8ff]
[    0.146702] pci 0000:03:00.0: reg 30 32bit mmio: [0xfe6c0000-0xfe6dffff]
[    0.146735] pci 0000:03:00.0: supports D1 D2
[    0.146737] pci 0000:03:00.0: PME# supported from D0 D1 D2 D3hot D3cold
[    0.146859] pci 0000:03:00.0: PME# disabled
[    0.147023] pci 0000:00:06.0: bridge io port: [0xb000-0xbfff]
[    0.147026] pci 0000:00:06.0: bridge 32bit mmio: [0xfe600000-0xfe6fffff]
[    0.147082] pci 0000:02:00.0: reg 10 64bit mmio: [0xfe5fe000-0xfe5fffff]
[    0.147145] pci 0000:02:00.0: PME# supported from D0 D3hot D3cold
[    0.147266] pci 0000:02:00.0: PME# disabled
[    0.147451] pci 0000:00:07.0: bridge 32bit mmio: [0xfe500000-0xfe5fffff]
[    0.147510] pci 0000:01:06.0: reg 10 io port: [0xa800-0xa8ff]
[    0.147519] pci 0000:01:06.0: reg 14 32bit mmio: [0xfe4ffc00-0xfe4ffcff]
[    0.147578] pci 0000:01:06.0: supports D1 D2
[    0.147630] pci 0000:00:14.4: transparent bridge


and reboots at this point. With a pci-express vga card it boots fine.
pci device 14.4 is this:

00:14.4 PCI bridge: ATI Technologies Inc SBx00 PCI to PCI Bridge (rev 
40) (prog-if 01 [Subtractive decode])
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- 
ParErr- Stepping- SERR+ FastB2B- DisINTx-
        Status: Cap- 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium 
>TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 64
        Bus: primary=00, secondary=01, subordinate=01, sec-latency=64
        I/O behind bridge: 0000a000-0000afff
        Memory behind bridge: fe400000-fe4fffff
        Secondary status: 66MHz- FastB2B+ ParErr- DEVSEL=medium 
>TAbort- <TAbort- <MAbort+ <SERR- <PERR-
        BridgeCtl: Parity+ SERR+ NoISA+ VGA- MAbort- >Reset- FastB2B-
                PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn-


Perhaps its a bug?

Jens

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