From: "Blue Swirl" <blauwirbel@gmail.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH 3/6] use halted attribute for i386 too.
Date: Tue, 27 May 2008 19:10:51 +0300 [thread overview]
Message-ID: <f43fc5580805270910m29249ecfn7234aaf01d6987a4@mail.gmail.com> (raw)
In-Reply-To: <483C2A20.3010309@bellard.org>
On 5/27/08, Fabrice Bellard <fabrice@bellard.org> wrote:
> Glauber Costa wrote:
>
> > Unlike other architectures, i386 lacked a "halted" attribute, going
> > with a flag into hflags. By using the halted attribute, we can make
> > the code look like more other architectures, and simplify the code in
> > some instances. In this commit, we make the code for info_cpus simpler
> > in monitor.c
> >
>
> Good for the I386 halted attribute, as it was a mistake to put in in the
> hflags. For the memory, hflags should contain only parts of the CPU state
> known at translation time and should be equal to tb->flags. Most CPUs
> (including x86 !) do not follow this sane rule.
>
> For cpu_info_ip, it would be simpler to return an uint64_t containing the
> PC. I don't think the sparc case with npc really matters.
It's not very likely that the NPC would be different for some value of
PC when halted, but it's still nice.
next prev parent reply other threads:[~2008-05-27 16:10 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-27 15:18 [Qemu-devel] [PATCH 0/6] simplify cpu-exec new spin Glauber Costa
2008-05-27 15:18 ` [Qemu-devel] [PATCH 1/6] simplify cpu_exec Glauber Costa
2008-05-27 15:18 ` [Qemu-devel] [PATCH 2/6] Push common interrupt variables to cpu-defs.h Glauber Costa
2008-05-27 15:18 ` [Qemu-devel] [PATCH 3/6] use halted attribute for i386 too Glauber Costa
2008-05-27 15:18 ` [Qemu-devel] [PATCH 4/6] simply cpu_exec further Glauber Costa
2008-05-27 15:18 ` [Qemu-devel] [PATCH 5/6] isolate mmu code in arch-specific function Glauber Costa
2008-05-27 15:18 ` [Qemu-devel] [PATCH 6/6] cpu-exec-dump Glauber Costa
2008-05-27 15:38 ` Paul Brook
2008-05-27 15:30 ` [Qemu-devel] [PATCH 5/6] isolate mmu code in arch-specific function Fabrice Bellard
2008-05-27 15:42 ` Glauber Costa
2008-05-27 15:36 ` Paul Brook
2008-05-27 16:18 ` [Qemu-devel] [PATCH 4/6] simply cpu_exec further Blue Swirl
2008-05-27 16:27 ` Glauber Costa
2008-05-27 15:34 ` [Qemu-devel] [PATCH 3/6] use halted attribute for i386 too Fabrice Bellard
2008-05-27 16:10 ` Blue Swirl [this message]
2008-05-27 21:49 ` Glauber Costa
2008-05-27 16:25 ` Glauber Costa
2008-05-27 21:21 ` Fabrice Bellard
2008-05-27 15:39 ` [Qemu-devel] [PATCH 2/6] Push common interrupt variables to cpu-defs.h Fabrice Bellard
2008-05-27 15:33 ` [Qemu-devel] [PATCH 1/6] simplify cpu_exec Paul Brook
2008-05-27 16:05 ` Blue Swirl
2008-05-27 15:37 ` Fabrice Bellard
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