From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org, ananaza@iki.fi
Subject: Re: [Qemu-devel] Re: [PATCH] fix gdbstub support for multiple threads in usermode, v2
Date: Tue, 16 Jun 2009 20:25:53 +0100 [thread overview]
Message-ID: <200906162025.54533.paul@codesourcery.com> (raw)
In-Reply-To: <878wjsyoxk.fsf@brigitte.kvy.fi>
On Tuesday 16 June 2009, Antti P Miettinen wrote:
> Paul Brook <paul@codesourcery.com> writes:
> > Using threads for CPU emulation is just plain wrong.
> >
> Could you elaborate a bit? I've sort of assumed that to get reasonable
> performance out of emulating a parallel target on a parallel host,
You have taken this comment out of context.
Exposing multiple CPUs as threads to GDB is incorrect. Each CPU has its own
MMU (i.e. address space), so they should be exposed as processes, not threads.
Paul
next prev parent reply other threads:[~2009-06-16 19:26 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-02 19:53 [Qemu-devel] [PATCH] fix gdbstub support for multiple threads in usermode, v2 Nathan Froyd
2009-06-02 20:08 ` Paul Brook
2009-06-02 20:46 ` Daniel Jacobowitz
2009-06-02 20:54 ` Nathan Froyd
2009-06-02 21:14 ` Paul Brook
2009-06-02 21:48 ` Nathan Froyd
2009-06-02 21:56 ` Paul Brook
2009-06-16 19:11 ` [Qemu-devel] " Antti P Miettinen
2009-06-16 19:25 ` Paul Brook [this message]
2009-06-16 20:02 ` Antti P Miettinen
2009-06-17 16:39 ` Jan Kiszka
2009-06-02 22:44 ` Jan Kiszka
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