[PATCH 0/2] powerpc/xive: fix CPU hot unplug
Cédric Le Goater
clg at kaod.org
Sat Sep 23 18:26:54 AEST 2017
Hi,
Here are a couple of small fixes to support CPU hot unplug. There are
still some issues to be investigated as, in some occasions, after a
couple of plug and unplug, the cpu which was removed receives a 'lost'
interrupt. This showed to be the decrementer under QEMU.
Nevertheless, these patches are required and provide a significant
improvement to support CPU removal.
Tested under a phyp and a XIVE QEMU model for pseries.
Thanks,
C.
Cédric Le Goater (2):
powerpc/xive: fix IPI reset
powerpc/xive: fix cpu removal
arch/powerpc/sysdev/xive/common.c | 8 ++++++++
arch/powerpc/sysdev/xive/spapr.c | 4 ++++
2 files changed, 12 insertions(+)
--
2.13.5
More information about the Linuxppc-dev
mailing list