From: Bernhard Kohl <bernhard.kohl@gmx.net>
To: qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: [PATCH] exec: optimize lduw_phys and stw_phys
Date: Fri, 07 May 2010 21:17:28 +0200 [thread overview]
Message-ID: <hs1p08$31b$1@dough.gmane.org> (raw)
In-Reply-To: <4BE19A1C.2040800@nsn.com>
Am 05.05.2010 18:17, schrieb Bernhard Kohl:
> Implementation of the optimized code for these two functions.
>
> This is necessary for virtio which reads and writes VirtQueue index
> fields using these functions. The assumption is that this are atomic
> operations, which is not the case, if the memcpy() function which is
> used in the non optimized code does single byte copying. This happens
> for example with an older WindRiver glibc.
>
> Signed-off-by: Bernhard Kohl <bernhard.kohl@nsn.com>
Hi,
due to a mail server malfunction I resent this message one day later.
Please ignore this one.
Bernhard
prev parent reply other threads:[~2010-05-07 19:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-05-05 16:17 [Qemu-devel] [PATCH] exec: optimize lduw_phys and stw_phys Bernhard Kohl
2010-05-07 19:17 ` Bernhard Kohl [this message]
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