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b32e56e5a8
linux/arch/powerpc
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Benjamin Herrenschmidt b32e56e5a8 powerpc/xive: Fix trying to "push" an already active pool VP 
When setting up a CPU, we "push" (activate) a pool VP for it.

However it's an error to do so if it already has an active
pool VP.

This happens when doing soft CPU hotplug on powernv since we
don't tear down the CPU on unplug. The HW flags the error which
gets captured by the diagnostics.

Fix this by making sure to "pull" out any already active pool
first.

Fixes: 243e25112d ("powerpc/xive: Native exploitation of the XIVE interrupt controller")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-04-19 00:49:45 +10:00
..
boot powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
configs scsi: remove the fdomain and fdomain_cs drivers 2018-03-19 22:54:47 -04:00
crypto crypto: hash - annotate algorithms taking optional key 2018-01-12 23:03:35 +11:00
include powerpc fixes for 4.17 #2 2018-04-15 11:57:12 -07:00
kernel powerpc/64s: Default l1d_size to 64K in RFI fallback flush 2018-04-17 19:29:04 +10:00
kvm powerpc fixes for 4.17 #2 2018-04-15 11:57:12 -07:00
lib powerpc/lib: Fix off-by-one in alternate feature patching 2018-04-17 00:37:48 +10:00
math-emu License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
mm powerpc fixes for 4.17 #2 2018-04-15 11:57:12 -07:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2018-03-05 11:29:24 -08:00
oprofile powerpc: Use sizeof(*foo) rather than sizeof(struct foo) 2018-03-20 16:47:53 +11:00
perf powerpc updates for 4.17 2018-04-07 12:08:19 -07:00
platforms powerpc fixes for 4.17 #2 2018-04-15 11:57:12 -07:00
purgatory License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
sysdev powerpc/xive: Fix trying to "push" an already active pool VP 2018-04-19 00:49:45 +10:00
tools License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xmon Merge branch 'topic/paca' into next 2018-03-31 09:09:36 +11:00
Kconfig kexec_file: make use of purgatory optional 2018-04-13 17:10:27 -07:00
Kconfig.debug powerpc: Add new kconfig CONFIG_PPC_IRQ_SOFT_MASK_DEBUG 2018-01-19 22:37:03 +11:00
Makefile powerpc/64s: Add POWER9 CPU type selection 2018-04-01 22:15:32 +10:00
Makefile.postlink License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00