From: Andrew Cooper <andrew.cooper3@citrix.com>
To: Jan Beulich <JBeulich@suse.com>,
xen-devel <xen-devel@lists.xenproject.org>
Cc: Wei Liu <wei.liu2@citrix.com>
Subject: Re: [PATCH] x86/compat: correct SMEP/SMAP NOPs patching
Date: Thu, 26 May 2016 11:41:34 +0100 [thread overview]
Message-ID: <5746D2DE.1040705@citrix.com> (raw)
In-Reply-To: <5745DA4102000078000EEBF5@prv-mh.provo.novell.com>
On 25/05/16 16:00, Jan Beulich wrote:
> Correct the number of single byte NOPs we want to be replaced in case
> neither SMEP nor SMAP are available.
>
> Also simplify the expression adding these NOPs - at that location .
> equals .Lcr4_orig, and removing that part of the expression fixes a
> bogus ".space or fill with negative value, ignored" warning by very old
> gas (which actually is what made me look at those constructs again).
>
> Signed-off-by: Jan Beulich <jbeulich@suse.com>
Reviewed-by: Andrew Cooper <andrew.cooper3@citrix.com>
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next prev parent reply other threads:[~2016-05-26 10:41 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-25 15:00 [PATCH] x86/compat: correct SMEP/SMAP NOPs patching Jan Beulich
2016-05-25 16:03 ` Wei Liu
2016-05-26 10:41 ` Andrew Cooper [this message]
2016-05-27 8:01 ` Jan Beulich
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