From: "Andreas Färber" <afaerber@suse.de>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: qemu-devel@nongnu.org, patches@linaro.org
Subject: Re: [Qemu-devel] [PATCH] target-arm: Make '-cpu any' available in linux-user mode only
Date: Tue, 03 Sep 2013 17:23:26 +0200 [thread overview]
Message-ID: <5225FEEE.5090005@suse.de> (raw)
In-Reply-To: <1378213995-12945-1-git-send-email-peter.maydell@linaro.org>
Am 03.09.2013 15:13, schrieb Peter Maydell:
> Make the 'any' CPU for target-arm available only in linux-user mode.
> The ARM target provides a CPU named "any", which turns on support for
> all user-level instruction set extensions we know about. This is
> intended for linux-user emulation mode, where it is the default CPU type.
> It makes no sense to try to use this for system emulation, since we don't
> initialize it with any system-level information like feature register
> values or implementation specific cp15 registers. (Unsurprisingly, some
> boards won't boot at all, though you might get lucky in some cases where
> the guest doesn't happen to prod things that aren't there.)
>
> Prevent users from making this command line error by removing the
> CPU definition from the softmmu build.
>
> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Andreas
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prev parent reply other threads:[~2013-09-03 15:23 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-03 13:13 [Qemu-devel] [PATCH] target-arm: Make '-cpu any' available in linux-user mode only Peter Maydell
2013-09-03 15:23 ` Andreas Färber [this message]
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