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Re: [Qemu-devel] Qemu - where will it go?
From: |
Paul Brook |
Subject: |
Re: [Qemu-devel] Qemu - where will it go? |
Date: |
Mon, 16 Jan 2006 15:48:04 +0000 |
User-agent: |
KMail/1.9.1 |
> Jürgen has stated his desired functionality already. What other "main
> uses" are there? (Asked in the hope of further sparking the discussion ;)
I use the usermode emulation fairly extensively for cross development/testing.
User emulation has three main advantages for our purposes:
- It's significantly faster than full system emulation, especially when the
target system would be using an NFSroot.
- It doesn't rely on a target kernel. These frequently have bugs, especially
on the less popular architectures..
- It's much easier to integrate into test harnesses. With binfmt_misc it's
mostly transparent. For full system emulation you have to mess about with
telnet/rsh.
The main downside is that threaded applications don't currently work properly,
but that's fixable.
Paul