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RE: [Qemu-devel] Re: [PATCH 2/4] move CPUID_APIC flag to where it belong


From: Stanislav
Subject: RE: [Qemu-devel] Re: [PATCH 2/4] move CPUID_APIC flag to where it belongs
Date: Wed, 6 May 2009 20:29:23 +0300

If OS boot fine its more luck. The flag indicates presence of local apic,
not "if it is supported".
For example when lapic is globally disabled (i.e. not present) CPUID flag is
cleared off as well.
But CPU is still supports lapic, after reset it will be back.

Stanislav


> Without doing my homework:
> What impact will it have on an emulated CPUs without [L]APIC? I'm
> thinking of -M isapc e.g.


>I tried, and it still boots fine.
>The flag just indicates it supports an apic, not that it has one.







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