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

[Atsushi SAKAI <sakaia@xxxxxxxxxxxxxx>]

Hi, Tristan

Thank you again for various information.

Accidentally, I need to check Fedora Xen Compile Options.
My understanding of PCI back/front is improved.

Thanks
Atsushi SAKAI


>Le Lundi 16 Octobre 2006 11:57, Atsushi SAKAI a ecrit :
>> 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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