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(parent: c169216) | patch
ARM: report Spectre v2 status through sysfs
authorRussell King (Oracle) <rmk+kernel@armlinux.org.uk>
Fri, 11 Feb 2022 16:45:54 +0000 (16:45 +0000)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 11 Mar 2022 09:13:30 +0000 (10:13 +0100)
commit2d44960d3edf9994998ff798ef618e666c4f0143
treef5df48738acd8d445db483b7d6a5776bfdddb84dtree
parentc169216a63ad1547b79e4688e6983ac54a5631fccommit | diff
ARM: report Spectre v2 status through sysfs

commit 9dd78194a3722fa6712192cdd4f7032d45112a9a 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>
[ preserve res variable and add SMCCC_ARCH_WORKAROUND_RET_UNAFFECTED - gregkh ]
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/arm/include/asm/spectre.h [new file with mode: 0644] blob
arch/arm/kernel/Makefile diff | blob | blame | history
arch/arm/kernel/spectre.c [new file with mode: 0644] blob
arch/arm/mm/Kconfig diff | blob | blame | history
arch/arm/mm/proc-v7-bugs.c diff | blob | blame | history
Mirror https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git