linux-kernel - Re: Access to local APIC registers during an interrupt handler

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Message-ID: <4DF4AF76.2070307@xaipete.org>
Date:	Sun, 12 Jun 2011 14:22:14 +0200
From:	Robert Uhl <ruhl@...pete.org>
To:	Mikael Pettersson <mikpe@...uu.se>
CC:	linux-kernel@...r.kernel.org
Subject: Re: Access to local APIC registers during an interrupt handler

On 12.06.2011 13:01, Mikael Pettersson wrote:
>   >  movq (lapic_idregister), %rcx
>   >  movq (%rcx), %rcx
>
> You're doing a 64-bit load from a 32-bit lapic register.
>
> If changing the above movq (%rcx), %rcx to use movl instead makes it
> work in real HW, then you've found an accepts-invalid bug in qemu.

It works with movl, thank you very much!
I will send a bug report to the qemu team.
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