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From: Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>
To: Jan Beulich <JBeulich@suse.com>,
	xen-devel <xen-devel@lists.xenproject.org>
Cc: Andrew Cooper <andrew.cooper3@citrix.com>,
	Keir Fraser <keir@xen.org>,
	suravee.suthikulpanit@amd.com
Subject: Re: [PATCH] x86emul: support clzero
Date: Mon, 11 Jan 2016 09:55:18 -0600	[thread overview]
Message-ID: <5693D066.6070607@amd.com> (raw)
In-Reply-To: <56016E8102000078000A45B7@prv-mh.provo.novell.com>

On 9/22/2015 8:06 AM, Jan Beulich wrote:
> ... in anticipation of this possibly going to get used by guests for
> basic thinks like memset() or clearing or pages.
>
> Since the emulation doesn't use clzero itself, checking the guest's
> CPUID for the feature to be exposed is (intentionally) being avoided
> here. All that's required is sensible guest side data for the clflush
> line size.
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
>
>

Reviewed-by: Aravind Gopalakrishnan <aravind.gopalakrishnan@amd.com>

Thanks,
-Aravind.

  parent reply	other threads:[~2016-01-11 15:55 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-22 13:06 [PATCH] x86emul: support clzero Jan Beulich
2015-09-23 17:37 ` Andrew Cooper
2015-09-24  8:02   ` Jan Beulich
2015-09-24 11:59     ` Andrew Cooper
2015-09-24 12:13       ` Jan Beulich
2015-10-08 10:26     ` Jan Beulich
2016-01-11 15:55 ` Aravind Gopalakrishnan [this message]
2016-01-13 15:10   ` Andrew Cooper

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