Re: [Xen-ia64-devel] [Q] about PCI front/IA64

[Tristan Gingold <Tristan.Gingold@xxxxxxxx>]

Le Lundi 16 Octobre 2006 11:57, Atsushi SAKAI a Ãcrit :
> Hi, Tristan
>
> Thank you for your comments.
>
> I am wondering the code of arch/i386/pci/pcifront.c and irq-xen.c for x86.
> (IA64 does not have it)
>
> The pirq_find_routing_table@arch/i386/pci/irq-xen.c is  pci_sal_read/write
> for IA64. (DomU/VTI cannot access PCI configuration)
HI,

I am not 100% sure, but I think the routing table is extracted from ACPI 
tables.
DomU doesn't really need this because it uses event channel.

domVTI should use pci_sal_read/write which is emulated by qemu.

Tristan.

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