From: Simon Guo <wei.guo.simon@gmail.com>
To: Michael Ellerman <mpe@ellerman.id.au>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Kees Cook <keescook@chromium.org>,
Rashmica Gupta <rashmicy@gmail.com>,
Simon Guo <simonguo@linux.vnet.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
Laurent Dufour <ldufour@linux.vnet.ibm.com>
Subject: Re: [RESEND][PATCH v2] powerpc: Export thread_struct.used_vr/used_vsr to user space
Date: Tue, 12 Apr 2016 10:58:59 +0800 [thread overview]
Message-ID: <20160412025859.GB7322@simonLocalRHEL7.x64> (raw)
In-Reply-To: <20160406070012.GA11647@simonLocalRHEL7.x64>
Hi Michael,
On Wed, Apr 06, 2016 at 03:00:12PM +0800, Simon Guo wrote:
> These 2 fields track whether user process has used Altivec/VSX
> registers or not. They are used by kernel to setup signal frame
> on user stack correctly regarding vector part.
>
> CRIU(Checkpoint and Restore In User space) builds signal frame
> for restored process. It will need this export information to
> setup signal frame correctly. And CRIU will need to restore these
> 2 fields for the restored process.
>
> Signed-off-by: Simon Guo <wei.guo.simon@gmail.com>
> Reviewed-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
> ---
Is there any chance that this patch can be merged upstream soon?
The corresponding work of CRIU has to follow after that.
Thanks,
Simon
next prev parent reply other threads:[~2016-04-12 2:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-06 7:00 [RESEND][PATCH v2] powerpc: Export thread_struct.used_vr/used_vsr to user space Simon Guo
2016-04-12 2:58 ` Simon Guo [this message]
2016-07-05 5:40 ` [RESEND, " Michael Ellerman
2016-07-04 21:08 ` Simon Guo
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