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Re: [Qemu-devel] [PATCH 0/4] Define default CPU at configure time
From: |
Richard Henderson |
Subject: |
Re: [Qemu-devel] [PATCH 0/4] Define default CPU at configure time |
Date: |
Mon, 09 Sep 2013 12:23:03 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130805 Thunderbird/17.0.8 |
On 09/07/2013 02:19 AM, Peter Maydell wrote:
> On 7 September 2013 10:13, Laurent Vivier <address@hidden> 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~
- [Qemu-devel] [PATCH 0/4] Define default CPU at configure time, Laurent Vivier, 2013/09/06
- [Qemu-devel] [PATCH 1/4] linux-user: define default cpu model in configure instead of linux-user/main.c, Laurent Vivier, 2013/09/06
- [Qemu-devel] [PATCH 2/4] linux-user: specify the cpu model during configure, Laurent Vivier, 2013/09/06
- [Qemu-devel] [PATCH 4/4] linux-user,arm: display default cpu, Laurent Vivier, 2013/09/06
- [Qemu-devel] [PATCH 3/4] linux-user,m68k: display default cpu, Laurent Vivier, 2013/09/06
- Re: [Qemu-devel] [PATCH 0/4] Define default CPU at configure time, Peter Maydell, 2013/09/07