Hi,
I'm trying to write an IDE driver with busmaster DMA support.
My problem is that I can't get the right controller registers addresses.
In the IDE BusMaster DMA specification :
"The control registers for the controller are allocated via the
devices Base Address register at offset 0x20 in PCI configuration
space."
If I read the word at offset 0x20 in the PCI configuration space, I get
0xc001. But if I boot qemu with a linux live-cd, it tells me that BM-DMA
is at 0xc000
Do I have to init the PCI IDE controller or something ?
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