From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
Ard Biesheuvel
<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Andy Lutomirski <luto-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>,
Sai Praneeth Prakhya
<sai.praneeth.prakhya-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
Peter Zijlstra <peterz-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
joeyli <jlee-IBi9RG/b67k@public.gmane.org>,
Borislav Petkov <bp-Gina5bIWoIWzQB+pC5nmwQ@public.gmane.org>,
"Michael S. Tsirkin"
<mst-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"Neri,
Ricardo" <ricardo.neri-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>,
"Ravi V. Shankar"
<ravi.v.shankar-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
Subject: Re: [PATCH 3/3] x86/efi: Use efi_switch_mm() rather than manually twiddling with cr3
Date: Wed, 16 Aug 2017 13:57:15 +0100 [thread overview]
Message-ID: <20170816125715.GB3384@codeblueprint.co.uk> (raw)
In-Reply-To: <20170816110321.GC17270@leverpostej>
On Wed, 16 Aug, at 12:03:22PM, Mark Rutland wrote:
>
> I'd expect we'd abort at a higher level, not taking any sample. i.e.
> we'd have the core overflow handler check in_funny_mm(), and if so, skip
> the sample, as with the skid case.
FYI, this is my preferred solution for x86 too.
WARNING: multiple messages have this Message-ID (diff)
From: Matt Fleming <matt@codeblueprint.co.uk>
To: Mark Rutland <mark.rutland@arm.com>
Cc: Will Deacon <will.deacon@arm.com>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Andy Lutomirski <luto@kernel.org>,
Sai Praneeth Prakhya <sai.praneeth.prakhya@intel.com>,
Peter Zijlstra <peterz@infradead.org>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
joeyli <jlee@suse.com>, Borislav Petkov <bp@alien8.de>,
"Michael S. Tsirkin" <mst@redhat.com>,
"Neri, Ricardo" <ricardo.neri@intel.com>,
"Ravi V. Shankar" <ravi.v.shankar@intel.com>
Subject: Re: [PATCH 3/3] x86/efi: Use efi_switch_mm() rather than manually twiddling with cr3
Date: Wed, 16 Aug 2017 13:57:15 +0100 [thread overview]
Message-ID: <20170816125715.GB3384@codeblueprint.co.uk> (raw)
In-Reply-To: <20170816110321.GC17270@leverpostej>
On Wed, 16 Aug, at 12:03:22PM, Mark Rutland wrote:
>
> I'd expect we'd abort at a higher level, not taking any sample. i.e.
> we'd have the core overflow handler check in_funny_mm(), and if so, skip
> the sample, as with the skid case.
FYI, this is my preferred solution for x86 too.
next prev parent reply other threads:[~2017-08-16 12:57 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-15 19:18 [PATCH 0/3] Use mm_struct and switch_mm() instead of manually Sai Praneeth Prakhya
2017-08-15 19:18 ` [PATCH 1/3] efi: Use efi_mm in x86 as well as ARM Sai Praneeth Prakhya
[not found] ` <1502824706-30762-1-git-send-email-sai.praneeth.prakhya-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-08-15 19:18 ` [PATCH 2/3] x86/efi: Replace efi_pgd with efi_mm.pgd Sai Praneeth Prakhya
2017-08-15 19:18 ` Sai Praneeth Prakhya
2017-08-15 19:18 ` [PATCH 3/3] x86/efi: Use efi_switch_mm() rather than manually twiddling with cr3 Sai Praneeth Prakhya
2017-08-15 21:46 ` Andy Lutomirski
[not found] ` <CALCETrUnT0YL_F3mXyJzi=NE5jvFUUQbwjdK5224zDKkTts-UQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-16 0:23 ` Sai Praneeth Prakhya
2017-08-16 0:23 ` Sai Praneeth Prakhya
[not found] ` <1502843039.9150.19.camel-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-08-16 0:47 ` Andy Lutomirski
2017-08-16 0:47 ` Andy Lutomirski
2017-08-16 9:31 ` Ard Biesheuvel
[not found] ` <CAKv+Gu8AySQSXtRWfHA4y5DbH-DQ7jpqkp=tS+snSTar_sKBJw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-16 9:53 ` Mark Rutland
2017-08-16 9:53 ` Mark Rutland
2017-08-16 10:07 ` Will Deacon
2017-08-16 10:07 ` Will Deacon
2017-08-16 11:03 ` Mark Rutland
2017-08-16 12:57 ` Matt Fleming [this message]
2017-08-16 12:57 ` Matt Fleming
[not found] ` <20170816125715.GB3384-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2017-08-16 16:14 ` Andy Lutomirski
2017-08-16 16:14 ` Andy Lutomirski
2017-08-15 22:35 ` Mark Rutland
2017-08-17 10:35 ` Will Deacon
[not found] ` <20170817103514.GC27872-5wv7dgnIgG8@public.gmane.org>
2017-08-17 15:52 ` Andy Lutomirski
2017-08-17 15:52 ` Andy Lutomirski
[not found] ` <CALCETrVhLmntPArQiuOcQeNf9Y2kDxa+mUY=v1P8rVOkeCZn4Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-08-21 10:33 ` Peter Zijlstra
2017-08-21 10:33 ` Peter Zijlstra
[not found] ` <20170821103359.jt2xf2cx5wxjldau-Nxj+rRp3nVydTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2017-08-21 13:56 ` Andy Lutomirski
2017-08-21 13:56 ` Andy Lutomirski
2017-08-21 14:08 ` Peter Zijlstra
[not found] ` <20170821140813.idloyrk4lowann3j-Nxj+rRp3nVydTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2017-08-21 15:23 ` Andy Lutomirski
2017-08-21 15:23 ` Andy Lutomirski
[not found] ` <6E0248C9-19AB-474E-A901-2A0422337DD0-kltTT9wpgjJwATOyAt5JVQ@public.gmane.org>
2017-08-21 15:59 ` Peter Zijlstra
2017-08-21 15:59 ` Peter Zijlstra
[not found] ` <20170821155913.7bmmy7zaihpd6s7h-Nxj+rRp3nVydTX5a5knrm8zTDFooKrT+cvkQGrU6aU0@public.gmane.org>
2017-08-21 16:08 ` Ard Biesheuvel
2017-08-21 16:08 ` Ard Biesheuvel
2017-08-23 22:52 ` Sai Praneeth Prakhya
2017-08-23 22:52 ` Sai Praneeth Prakhya
[not found] ` <1503528742.30475.17.camel-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
2017-08-25 15:13 ` Andy Lutomirski
2017-08-25 15:13 ` Andy Lutomirski
2017-08-21 17:24 ` Peter Zijlstra
2017-08-25 2:36 ` Sai Praneeth Prakhya
2017-08-25 15:13 ` Andy Lutomirski
-- strict thread matches above, loose matches on Subject: below --
2017-12-17 0:06 [PATCH 3/3] x86/efi: Use efi_switch_mm() rather than manually twiddling with %cr3 Sai Praneeth Prakhya
2017-12-17 0:06 ` Sai Praneeth Prakhya
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