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[Xen-devel] IDE from domU



I've run into a problem trying to access IDE devices on the
motherboard from a domU guest.  I compiled a custom domU with the
proper drivers and masked and assigned the pci device.  I also needed
to include the ISA south bridge for the driver to load properly.

The device on ide0 does get detected and DMA enabled:

VP_IDE: IDE controller at PCI slot 0000:00:0f.1
PCI: Obtained IRQ 20 for device 0000:00:0f.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt8237 (rev 00) IDE UDMA133 controller on pci0000:00:0f.1
    ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:pio
    ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:pio, hdd:pio

But the device is not found during probing:

Probing IDE interface ide0...
Probing IDE interface ide1...
Probing IDE interface ide0...
Probing IDE interface ide1...
Probing IDE interface ide2...
Probing IDE interface ide3...
Probing IDE interface ide4...
Probing IDE interface ide5...

From lspci:
0000:00:0f.1 IDE interface: VIA Technologies,
Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06)
0000:00:11.0 ISA bridge: VIA Technologies, Inc. VT8237 ISA bridge
[K8T800 South]

-- 
Jason Cook                    GnuPG Fingerprint: D531 F4F4 BDBF 41D1 514D
http://blog.simpleideas.org                      F930 FD03 262E 5120 BEDD

Jeez.  No beer ... no opera dogs ...
        -- Homer Simpson

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