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authorThomas Gleixner <tglx@linutronix.de>2018-05-03 23:09:15 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-05-22 19:54:04 +0300
commit20d036a2e223a5c4327bcf432ef995f59f51d1d1 (patch)
tree4d79c308f3c9af554bdcef4a8afe4e004b8476a7 /Documentation/cma
parentc024722ffecd484fcb35ad61e822c214b6913196 (diff)
downloadlinux-20d036a2e223a5c4327bcf432ef995f59f51d1d1.tar.xz
prctl: Add force disable speculation
commit 356e4bfff2c5489e016fdb925adbf12a1e3950ee upstream For certain use cases it is desired to enforce mitigations so they cannot be undone afterwards. That's important for loader stubs which want to prevent a child from disabling the mitigation again. Will also be used for seccomp(). The extra state preserving of the prctl state for SSB is a preparatory step for EBPF dymanic speculation control. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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