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Groups > linux.kernel > #1518749
| From | Borislav Petkov <bp@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions |
| Date | 2016-11-10 10:00 +0100 |
| Message-ID | <sBTnb-3hK-3@gated-at.bofh.it> (permalink) |
| References | (1 earlier) <sB7Vg-5Hp-3@gated-at.bofh.it> <sBgFc-2G7-57@gated-at.bofh.it> <sBsGl-2qR-13@gated-at.bofh.it> <sBzya-6Ka-47@gated-at.bofh.it> <sBOdQ-8mp-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Nov 09, 2016 at 07:24:43PM -0800, Ricardo Neri wrote:
> I intended this feature to be configurable at build time in case someone
> wants to build a kernel without it; similar to other features such as
> SMAP. Is this not needed? Should Linux be built with this feature always
> enabled?
>
> This feature could always be disabled via a kernel parameter, though;
> even if Linux is built with it.
It probably is a good idea to have it build-time configurable for the
embedded folks. But you can do a before and after build and look at
the vmlinux size and see how much it has grown. If it is only a couple
of KBs I guess we can drop the config option even but I know there are
people who still care about KBs too...
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
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[PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Ricardo Neri <ricardo.neri-calderon@linux.intel.com> - 2016-11-08 07:20 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Andy Lutomirski <luto@amacapital.net> - 2016-11-08 16:40 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Ricardo Neri <ricardo.neri-calderon@linux.intel.com> - 2016-11-09 05:30 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Andy Lutomirski <luto@amacapital.net> - 2016-11-09 12:50 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Ricardo Neri <ricardo.neri-calderon@linux.intel.com> - 2016-11-10 04:30 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Borislav Petkov <bp@suse.de> - 2016-11-10 10:00 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Ricardo Neri <ricardo.neri-calderon@linux.intel.com> - 2016-11-11 05:10 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Borislav Petkov <bp@suse.de> - 2016-11-11 11:30 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Dave Hansen <dave.hansen@linux.intel.com> - 2016-11-11 19:10 +0100
Re: [PATCH 1/4] x86/cpufeature: Add User-Mode Instruction Prevention definitions Dave Hansen <dave.hansen@linux.intel.com> - 2016-11-10 18:10 +0100
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