From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
Don Koch <dkoch@verizon.com>
Cc: Keir Fraser <keir@xen.org>, Jan Beulich <JBeulich@suse.com>,
xen-devel@lists.xen.org
Subject: Re: [for-xen-4.5 PATCH] Ignore non-zero data in unused xsave area.
Date: Tue, 18 Nov 2014 16:36:31 +0000 [thread overview]
Message-ID: <546B758F.9020207@citrix.com> (raw)
In-Reply-To: <20141118163247.GF17095@laptop.dumpdata.com>
On 18/11/14 16:32, Konrad Rzeszutek Wilk wrote:
> On Tue, Nov 18, 2014 at 10:26:31AM -0500, Don Koch wrote:
>> If we restore an xsave area from an older xen that has a larger
>> size than the xcr0 bit call for, it is possible to have non-zero
>> data in the unused area if an xsave has ever been done that used
Do you mean "has never been done".
i.e. the non-zero data is actually Xen heap junk?
~Andrew
next prev parent reply other threads:[~2014-11-18 16:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-11-18 15:26 [PATCH] Ignore non-zero data in unused xsave area Don Koch
2014-11-18 16:32 ` [for-xen-4.5 PATCH] " Konrad Rzeszutek Wilk
2014-11-18 16:36 ` Andrew Cooper [this message]
2014-11-18 16:35 ` [PATCH] " Jan Beulich
2014-11-18 16:47 ` Don Koch
2014-11-20 14:35 ` Don Koch
2014-11-20 14:45 ` Jan Beulich
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