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authorJiri Kosina <jkosina@suse.cz>2018-09-25 14:39:28 +0200
committerThomas Gleixner <tglx@linutronix.de>2018-09-26 14:26:52 +0200
commitbb4b3b7762735cdaba5a40fd94c9303d9ffa147a (patch)
tree3e5caa2f2fe2ae672ef56f0c1ef066072161cc09 /lib/Kconfig.ubsan
parent53c613fe6349994f023245519265999eed75957f (diff)
x86/speculation: Propagate information about RSB filling mitigation to sysfs
If spectrev2 mitigation has been enabled, RSB is filled on context switch in order to protect from various classes of spectrev2 attacks. If this mitigation is enabled, say so in sysfs for spectrev2. Signed-off-by: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: "WoodhouseDavid" <dwmw@amazon.co.uk> Cc: Andi Kleen <ak@linux.intel.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: "SchauflerCasey" <casey.schaufler@intel.com> Link: https://lkml.kernel.org/r/nycvar.YFH.7.76.1809251438580.15880@cbobk.fhfr.pm
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