kernel-ark/arch/tile
Chris Metcalf 128f3cb939 tile: nohz: warn if nohz_full uses hypervisor shared cores
The "hypervisor shared" cores are ones that the Tilera hypervisor
uses to receive interrupts to manage hypervisor-owned devices.
It's a bad idea to try to use those cores with nohz_full, since
they will get interrupted unpredictably -- and invisibly to Linux
tracing tools, since the interrupts are delivered at a higher
privilege level to the Tilera hypervisor.

Generate a clear warning at boot up that this doesn't end well
for the nohz_full cores in question.

Signed-off-by: Chris Metcalf <cmetcalf@ezchip.com>
2015-04-17 14:01:41 -04:00
..
configs netpoll: delete defconfig references to obsolete NETPOLL_TRAP 2014-11-29 21:13:48 -08:00
gxio arch: tile: gxio: Export symbols for module using in 'mpipe.c' 2014-11-11 15:41:45 -05:00
include tile: nohz: warn if nohz_full uses hypervisor shared cores 2015-04-17 14:01:41 -04:00
kernel tile: nohz: warn if nohz_full uses hypervisor shared cores 2015-04-17 14:01:41 -04:00
kvm rcu: Make SRCU optional by using CONFIG_SRCU 2015-01-06 11:04:29 -08:00
lib tile: include: asm: use 'long long' instead of 'u64' for atomic64_t and its related functions 2013-09-27 16:08:56 -04:00
mm tile: map data region shadow of kernel as R/W 2015-04-17 14:01:35 -04:00
Kbuild
Kconfig tile: support CONTEXT_TRACKING and thus NOHZ_FULL 2015-04-17 14:01:10 -04:00
Kconfig.debug tile: remove DEBUG_EXTRA_FLAGS kernel config option 2013-09-03 14:52:17 -04:00
Makefile tile: remove DEBUG_EXTRA_FLAGS kernel config option 2013-09-03 14:52:17 -04:00