Messages in this thread | | | Subject | Re: 3.2.1 Unable to reset IRR messages on boot | From | Suresh Siddha <> | Date | Tue, 20 Mar 2012 13:41:32 -0700 |
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On Tue, 2012-03-20 at 16:25 -0400, Konrad Rzeszutek Wilk wrote: > On Tue, Mar 20, 2012 at 01:05:19PM -0700, Suresh Siddha wrote: > > Also does the dom0 see all the GSI's/io-apic's that the host sees or is > > it going to be just one io-apic? I was just wondering if the reg 01 need > > to be same as what the host sees? > > It does not use the APIC mechanism at all. It only needs the GSI value > from the IOAPIC and LAPIC so that the ACPI can work.
So the number of redirection entries in the io-apic need to be same as the original values then?
> It could also at startup copy the original values and stick them in these copies. > That does mean using the memory allocator to allocate X copies for X IOAPICS. I > don't think the memory allocator is active at that stage since we using fixmaps. > Thoughts?
You should be able to use alloc_bootmem friends.
thanks, suresh
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