From: Andrew Cooper <andrew.cooper3@citrix.com>
To: "Wu, Feng" <feng.wu@intel.com>
Cc: "Jan Beulich (JBeulich@suse.com)" <JBeulich@suse.com>,
"Wang, Yong Y" <yong.y.wang@intel.com>,
"Nakajima, Jun" <jun.nakajima@intel.com>,
"xen-devel@lists.xen.org" <xen-devel@lists.xen.org>
Subject: Re: SMAP/SMEP issues with 32-bit pv guests
Date: Mon, 1 Aug 2016 11:16:03 +0100 [thread overview]
Message-ID: <fc0a8cf7-dc73-783d-b638-cc411ec27aee@citrix.com> (raw)
In-Reply-To: <E959C4978C3B6342920538CF579893F019731A3E@SHSMSX103.ccr.corp.intel.com>
On 28/06/16 02:58, Wu, Feng wrote:
> Hi Andy,
>
> As you know, SMAP/SMEP may affect the 32-bit pv guests, after discussed internally, our current idea is that we can just disable this two feature for Xen hypervisor itself, hence only enable it for HVM guests. Do you think this is acceptable from your perspective?
So you are suggesting that Xen detects SMEP/SMAP, doesn't turn it on for
itself, but does allow HVM guests to use it?
I suppose that is a slight improvement over the current situation.
~Andrew
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next prev parent reply other threads:[~2016-08-01 10:16 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-06-28 1:58 SMAP/SMEP issues with 32-bit pv guests Wu, Feng
2016-06-28 7:41 ` Jan Beulich
2016-08-01 0:48 ` Wu, Feng
2016-08-01 8:16 ` Jan Beulich
2016-08-01 8:25 ` Wu, Feng
2016-08-01 10:16 ` Andrew Cooper [this message]
2016-08-01 12:24 ` Wang, Yong Y
2016-08-01 12:30 ` Andrew Cooper
2016-08-01 12:48 ` Wu, Feng
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