OpenCloudOS-Kernel/arch/powerpc/include
Paul Mackerras 755563bc79 powerpc/powernv: Fixes for hypervisor doorbell handling
Since we can now use hypervisor doorbells for host IPIs, this makes
sure we clear the host IPI flag when taking a doorbell interrupt, and
clears any pending doorbell IPI in pnv_smp_cpu_kill_self() (as we
already do for IPIs sent via the XICS interrupt controller).  Otherwise
if there did happen to be a leftover pending doorbell interrupt for
an offline CPU thread for any reason, it would prevent that thread from
going into a power-saving mode; it would instead keep waking up because
of the interrupt.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-03-20 14:51:53 +11:00
..
asm powerpc/powernv: Fixes for hypervisor doorbell handling 2015-03-20 14:51:53 +11:00
uapi/asm powerpc: Wire up sys_execveat() syscall 2014-12-29 15:44:53 +11:00