x86/cpu: Implement CPU vulnerabilites sysfs functions

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commit 61dc0f555b upstream.

Implement the CPU vulnerabilty show functions for meltdown, spectre_v1 and
spectre_v2.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Linus Torvalds <torvalds@linuxfoundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: David Woodhouse <dwmw@amazon.co.uk>
Link: https://lkml.kernel.org/r/20180107214913.177414879@linutronix.de
[bwh: Backported to 3.16:
 - Meltdown mitigation feature flag is KAISER
 - Adjust context]
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>

...

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Thomas Gleixner 2018-01-07 22:48:01 +01:00 • committed by Ben Hutchings

parent 56e8e5a33f

commit 15224fb82d

2 changed files with 30 additions and 0 deletions

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arch/x86/Kconfig

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29

arch/x86/kernel/cpu/bugs.c

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