Commits
Srivatsa S. Bhat committed 70989449dac
x86, microcode: Don't request microcode from userspace unnecessarily Requesting the microcode from userspace *every time* when onlining CPUs (during a CPU hotplug operation) is unnecessary. Thus, ensure that once the kernel gets the microcode after booting, it is not freed nor invalidated when a CPU goes offline, so that it can be reused when that CPU comes back online, without requesting userspace for it again. As a result, the CPU hotplug operations become faster as well. Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Acked-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Andreas Herrmann <andreas.herrmann3@amd.com> Link: http://lkml.kernel.org/r/4E91F908.5010006@linux.vnet.ibm.com Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>