Ashwin Chaugule c814ca029e ARM: Check if a CPU has gone offline ... PSCIv0.2 adds a new function called AFFINITY_INFO, which can be used to query if a specified CPU has actually gone offline. Calling this function via cpu_kill ensures that a CPU has quiesced after a call to cpu_die. This helps prevent the CPU from doing arbitrary bad things when data or instructions are clobbered (as happens with kexec) in the window between a CPU announcing that it is dead and said CPU leaving the kernel. Signed-off-by: Ashwin Chaugule <ashwin.chaugule@linaro.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com>		2014-05-15 10:16:30 -04:00
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asm	ARM: Check if a CPU has gone offline	2014-05-15 10:16:30 -04:00
uapi/asm	ARM/ARM64: KVM: Add base for PSCI v0.2 emulation	2014-04-30 04:18:57 -07:00