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Groups > linux.kernel > #1528412
| From | Borislav Petkov <bp@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available |
| Date | 2016-11-23 14:40 +0100 |
| Message-ID | <sGFWi-5vy-35@gated-at.bofh.it> (permalink) |
| References | <sEUPL-1xM-11@gated-at.bofh.it> <sEVsu-1L1-31@gated-at.bofh.it> <sGEdQ-4jn-15@gated-at.bofh.it> <sGFWi-5vy-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wed, Nov 23, 2016 at 11:29:51AM -0200, Henrique de Moraes Holschuh wrote:
> 1. Assuming we can do it, always lock it when it is found to be unlocked
> at kernel boot.
Because...?
> 2. Not attempt to change its state from disabled to enabled *unless*
> given a command line parameter authorizing it. A kconfig-based
> solution for default+command line override would also work well IMHO,
> if it makes more sense.
You can't reenable it:
"LockOut (R/WO)
Set 1 to prevent further writes to MSR_PPIN_CTL. Writing 1 to
MSR_PPINCTL[bit 0] is permitted only if MSR_PPIN_CTL[bit 1] is
clear, Default is 0."
--
Regards/Gruss,
Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg)
--
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[PATCH 2/2] mcelog: Print the PPIN in machine check records when it is available "Luck, Tony" <tony.luck@intel.com> - 2016-11-18 01:40 +0100
[PATCH 1/2] x86/mce: Include the PPIN in machine check records when it is available "Luck, Tony" <tony.luck@intel.com> - 2016-11-18 01:40 +0100
Re: [PATCH 1/2] x86/mce: Include the PPIN in machine check records when it is available Borislav Petkov <bp@suse.de> - 2016-11-18 14:10 +0100
Re: [PATCH 1/2] x86/mce: Include the PPIN in machine check records when it is available "Luck, Tony" <tony.luck@intel.com> - 2016-11-18 17:50 +0100
Re: [PATCH 1/2] x86/mce: Include the PPIN in machine check records when it is available Andi Kleen <andi@firstfloor.org> - 2016-11-18 18:10 +0100
Re: [PATCH 1/2] x86/mce: Include the PPIN in machine check records when it is available Borislav Petkov <bp@suse.de> - 2016-11-18 18:50 +0100
[PATCH v2] x86/mce: Include the PPIN in machine check records when it is available "Luck, Tony" <tony.luck@intel.com> - 2016-11-18 18:50 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Borislav Petkov <bp@suse.de> - 2016-11-23 12:50 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-11-23 14:40 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Borislav Petkov <bp@suse.de> - 2016-11-23 14:40 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Borislav Petkov <bp@suse.de> - 2016-11-23 16:00 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Tony Luck <tony.luck@gmail.com> - 2016-11-23 17:50 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Borislav Petkov <bp@suse.de> - 2016-11-23 18:00 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-11-23 18:30 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Tony Luck <tony.luck@gmail.com> - 2016-11-23 22:00 +0100
Re: [PATCH v2] x86/mce: Include the PPIN in machine check records when it is available Henrique de Moraes Holschuh <hmh@hmh.eng.br> - 2016-11-24 12:30 +0100
[tip:ras/core] x86/mce: Include the PPIN in MCE records when available tip-bot for Tony Luck <tipbot@zytor.com> - 2016-11-23 17:00 +0100
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