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Re: [Qemu-devel] [PATCH qom-next 04/59] pc: Add CPU as /machine/cpu[n]


From: Andreas Färber
Subject: Re: [Qemu-devel] [PATCH qom-next 04/59] pc: Add CPU as /machine/cpu[n]
Date: Fri, 08 Jun 2012 12:45:26 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:12.0) Gecko/20120421 Thunderbird/12.0

Am 08.06.2012 12:36, schrieb Andreas Färber:
> Am 08.06.2012 12:21, schrieb Jan Kiszka:
>> On 2012-06-08 11:11, Andreas Färber wrote:
>>> >From what I understand about the x86 modeling, the only case this
>>> matters is if you hot-unplug CPU 0, right? Question is, what happens
>>> with the APIC then? I would guess the remaining n-1 CPUs still want to
>>> access the APIC
>>
>> APICs are per-CPU, each has its own.
> 
> Uh, seems I'm seriously confusing APIC with something else then...

Guess I misread this as apic_init() in Igor's patch:

+    if (env->cpu_index == 0) {
+        apic_designate_bsp(env->apic_state);
+    }

Shame on me. :/

/-F

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