Re: [Xen-ia64-devel] [Patch] Pass the bare LSAPIC ID to dom0

[Akio Takebe <takebe_akio@xxxxxxxxxxxxxx>]

Hi, Alex, Tristan, Yongkang and all

>On Fri, 2007-07-20 at 03:53 +0200, Tristan Gingold wrote:
>> On Thu, Jul 19, 2007 at 05:20:26PM -0600, Alex Williamson wrote:
>> > On Wed, 2007-07-18 at 16:03 +0900, Akio Takebe wrote:
>> > > Hi, all
>> > > 
>> > > This patch fix a issue which dom0 cannot boot with dom0_max_vcpus.
>> > > Currently LSAPIC IDs are create by xen,
>> > > but ACPI SRAT table is the bare table.
>> > > So on some boxes node_cpuid[].phys_id are different from 
>> > > cpu_physical_id()s,
>> > > and we cannot boot dom0.
>> > > I think xen should pass the bare LSAPIC ID to dom0.
>> Hi Akio,
>> 
>> I am not sure this patch is complete.  Some code of Xen assumes vcpu_id ==
>> id (get_lid, IPI).
>> I think you'd better to patch the SRAT (if it is possible).
>
>   That may be the way to go, it should be possible.  BTW, now that I
>look at it again, lsapic->id == 0 really looks like an implementation
>dependent check.  Thanks,
I'm sorry, and I'll debug more.
I'll check vcpu_id and SRAT code.
Tristan's idea may be good, I'll try it.

I think this issue is occurred by mismatch infomation of SRAT and LSAPIC.
Alex, could you give me ACPI SRAT infomation of the super dome?

Best Regards,

Akio Takebe


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