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dc1c4165d1
linux/arch/powerpc
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Cédric Le Goater dc1c4165d1 KVM: PPC: Book3S: fix XIVE migration of pending interrupts 
When restoring a pending interrupt, we are setting the Q bit to force
a retrigger in xive_finish_unmask(). But we also need to force an EOI
in this case to reach the same initial state : P=1, Q=0.

This can be done by not setting 'old_p' for pending interrupts which
will inform xive_finish_unmask() that an EOI needs to be sent.

Fixes: 5af5099385 ("KVM: PPC: Book3S HV: Native usage of the XIVE interrupt controller")
Cc: stable@vger.kernel.org # v4.12+
Suggested-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Tested-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-12-22 15:34:02 +11:00
..
boot powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
configs powerpc/configs: Enable I2C_CHARDEV for pseries and powernv 2017-10-22 12:08:31 +02:00
crypto License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
include Revert "powerpc: Do not call ppc_md.panic in fadump panic notifier" 2017-12-05 23:21:46 +11:00
kernel powerpc/kernel: Print actual address of regs when oopsing 2017-12-19 13:09:40 +11:00
kvm KVM: PPC: Book3S: fix XIVE migration of pending interrupts 2017-12-22 15:34:02 +11:00
lib powerpc fixes for 4.15 #2 2017-11-24 19:40:12 -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 4.15 #3 2017-12-01 08:40:17 -05:00
net powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
oprofile treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
perf powerpc/perf: Fix kfree memory allocated for nest pmus 2017-12-13 20:51:22 +11:00
platforms Revert "powerpc: Do not call ppc_md.panic in fadump panic notifier" 2017-12-05 23:21:46 +11:00
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 updates for 4.15 2017-11-16 12:47:46 -08:00
tools License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
xmon powerpc/xmon: Don't print hashed pointers in xmon 2017-12-07 00:27:01 +11:00
Kconfig powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
Kconfig.debug powerpc updates for 4.15 2017-11-16 12:47:46 -08:00
Makefile Merge branch 'fixes' into next 2017-08-23 22:20:10 +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