From: Richard Henderson <rth@twiddle.net>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: Riku Voipio <riku.voipio@iki.fi>,
Laurent Vivier <Laurent@vivier.eu>,
QEMU Developers <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] [PATCH 0/4] Define default CPU at configure time
Date: Mon, 09 Sep 2013 12:23:03 -0700 [thread overview]
Message-ID: <522E2017.2060708@twiddle.net> (raw)
In-Reply-To: <CAFEAcA9zQLUJzCfQSJMvoeia4=2S2J2wGadnq4spVponeZE18A@mail.gmail.com>
On 09/07/2013 02:19 AM, Peter Maydell wrote:
> On 7 September 2013 10:13, Laurent Vivier <Laurent@vivier.eu> wrote:
>> Le 07/09/2013 10:43, Peter Maydell a écrit :
>> In fact, I don't understand why a given CPU id has been chosen to be the
>> default value. I think there is a default value not because this is the
>> best/most used value but because we need a default.
>
> The default for ARM is "any", which is specifically for linux-user
> and means "enable all possible user-visible instruction set options".
> That means it should be able to run any guest binary OK.
> Some other target CPU types do this, but not all; I think that
> ideally we should convert them to do similarly.
For mips this is impossible. There are multiple isa extensions that are
mutually exclusive. But for everyone else that ought to work.
r~
next prev parent reply other threads:[~2013-09-09 19:23 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-06 20:47 [Qemu-devel] [PATCH 0/4] Define default CPU at configure time Laurent Vivier
2013-09-06 20:47 ` [Qemu-devel] [PATCH 1/4] linux-user: define default cpu model in configure instead of linux-user/main.c Laurent Vivier
2013-09-06 20:47 ` [Qemu-devel] [PATCH 2/4] linux-user: specify the cpu model during configure Laurent Vivier
2013-09-06 20:47 ` [Qemu-devel] [PATCH 3/4] linux-user,m68k: display default cpu Laurent Vivier
2013-09-06 20:47 ` [Qemu-devel] [PATCH 4/4] linux-user,arm: " Laurent Vivier
2013-09-07 8:43 ` [Qemu-devel] [PATCH 0/4] Define default CPU at configure time Peter Maydell
2013-09-07 9:13 ` Laurent Vivier
2013-09-07 9:19 ` Peter Maydell
2013-09-09 19:23 ` Richard Henderson [this message]
2013-09-10 7:13 ` Laurent Vivier
2013-09-10 8:40 ` Peter Maydell
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