From: Robert Uhl <ruhl@xaipete.org>
To: Mikael Pettersson <mikpe@it.uu.se>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Access to local APIC registers during an interrupt handler
Date: Sun, 12 Jun 2011 14:22:14 +0200 [thread overview]
Message-ID: <4DF4AF76.2070307@xaipete.org> (raw)
In-Reply-To: <19956.40070.962218.422362@pilspetsen.it.uu.se>
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.
prev parent reply other threads:[~2011-06-12 12:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-11 15:29 Access to local APIC registers during an interrupt handler Robert Uhl
2011-06-12 11:01 ` Mikael Pettersson
2011-06-12 12:22 ` Robert Uhl [this message]
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