Frederic Barrat 17328f218f powerpc/xive: Discard ESB load value when interrupt is invalid ... A load on an ESB page returning all 1's means that the underlying device has invalidated the access to the PQ state of the interrupt through mmio. It may happen, for example when querying a PHB interrupt while the PHB is in an error state. In that case, we should consider the interrupt to be invalid when checking its state in the irq_get_irqchip_state() handler. Fixes: da15c03b04 ("powerpc/xive: Implement get_irqchip_state method for XIVE to fix shutdown race") Cc: stable@vger.kernel.org # v5.4+ Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com> [clg: wrote a commit log, introduced XIVE_ESB_INVALID ] Signed-off-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200113130118.27969-1-clg@kaod.org		2020-01-22 20:31:41 +11:00
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common.c	powerpc/xive: Discard ESB load value when interrupt is invalid	2020-01-22 20:31:41 +11:00
Kconfig	powerpc: remove redundant 'default n' from Kconfig-s	2018-10-13 22:21:25 +11:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00
native.c	powerpc updates for 5.4	2019-09-20 11:48:06 -07:00
spapr.c	powerpc/xive: Skip ioremap() of ESB pages for LSI interrupts	2019-12-05 00:11:45 +11:00
xive-internal.h	powerpc/xive: Fix dump of XIVE interrupt under pseries	2019-08-19 13:20:24 +10:00