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Re: [Qemu-devel] [patch 2/2] qemu: switch pci device init functions to a
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From: |
Marcelo Tosatti |
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Subject: |
Re: [Qemu-devel] [patch 2/2] qemu: switch pci device init functions to accept devfn |
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Date: |
Mon, 13 Apr 2009 11:34:46 -0300 |
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User-agent: |
Mutt/1.5.18 (2008-05-17) |
On Mon, Apr 13, 2009 at 09:47:39AM -0400, Brian Wheeler wrote:
> Does this mean that there would be a mechanism for a platform to map the
> pci memory address to a platform specific linear address? Alpha uses
>
> 0x8000000000 + (0x20000000 * bus) + address
>
> to determine where the pci memory is mapped in the cpu address space...
I think so yes. The use case in mind for us is interrupt mapping from
(device address + PCI interrupt specifier) -> platform interrupt
specifier.