ARM: report Spectre v2 status through sysfs

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commit 9dd78194a3 upstream.

As per other architectures, add support for reporting the Spectre
vulnerability status via sysfs CPU.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Russell King (Oracle) 2022-02-11 16:45:54 +00:00 • committed by Greg Kroah-Hartman

parent bf048d1921

commit f02cab2bed

5 changed files with 187 additions and 39 deletions

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28

arch/arm/include/asm/spectre.h

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2

arch/arm/kernel/Makefile

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54

arch/arm/kernel/spectre.c

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1

arch/arm/mm/Kconfig

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143

arch/arm/mm/proc-v7-bugs.c

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