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Re: [Xen-devel] Genapic in 32-bit Dom0 (Was : More Problems booting32-bi

To: "Puthiyaparambil, Aravindh" <aravindh.puthiyaparambil@xxxxxxxxxx>
Subject: Re: [Xen-devel] Genapic in 32-bit Dom0 (Was : More Problems booting32-bit Domain 0 on ES7000 x86_64)
From: Chris Wright <chrisw@xxxxxxxx>
Date: Fri, 5 Aug 2005 12:29:00 -0700
Cc: "Magolan, John F" <John.Magolan@xxxxxxxxxx>, Chris Wright <chrisw@xxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx>, "Vessey, Bruce A" <Bruce.Vessey@xxxxxxxxxx>
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* Puthiyaparambil, Aravindh (aravindh.puthiyaparambil@xxxxxxxxxx) wrote:
> Ooops that could cause problems for us on the ES7000 x86_64 as we run in
> clustered apic mode. With a uniprocessor Dom0 I see that it picks up
> clustered apic. From a cursory look at the genapic code in Dom0 I don't
> see a difference between UP and SMP clustered_apic_check(). Am I looking
> at the wrong place?

Yes, that patch hasn't been merged yet.

Here's the snippet that's likely to cause a problem as it stands now:

+       /* hardcode to xen apic functions */
+       genapic = &apic_xen;
+       printk(KERN_INFO "Setting APIC routing to %s\n", genapic->name);


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