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Re: [Qemu-devel] [PATCH 05/30] exec: do not use qemu/tls.h

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 05/30] exec: do not use qemu/tls.h
Date: Mon, 01 Jul 2013 22:52:29 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130514 Thunderbird/17.0.6

Il 01/07/2013 18:26, Peter Maydell ha scritto:
> > I think we should strive for one of these two:
> >
> > (1) all targets are TLS;
> >
> > (2) all targets are non-TLS if this is possible.
> >
> > Either maximizes the homogeneity across platforms.
> Since the two largest cases are both "cpu_single_env must be TLS"
> (ie (a) system emulation built with KVM support and (b) linux-user),
> the set of targets which can be non-TLS is really really small,
> and I think (1) makes much more sense.

Not many linux-user targets support threads (including not i386).

> (I'm assuming you don't want to try to support cpu_single_env
> being both per-thread and not-per-thread in a single binary
> depending on whether the user passes -enable-kvm or not.)

No, of course not.

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