tree 91c74527ad3a1041a33af93b2420fa95630685cd
parent 92eda4ad4371225d6ccf9cded74315547e9a3153
author Marc Zyngier <marc.zyngier@arm.com> 1447701208 +0000
committer Thomas Gleixner <tglx@linutronix.de> 1447766759 +0100

irqchip/gic: Add save/restore of the active state

When using EOImode==1, we may mark interrupts as being forwarded
to a virtual machine. In that case, the interrupt is left active
while being passed to the VM.

If we suspend the system before the VM has deactivated the interrupt,
the active state will be lost (which may be very annoying, as this
may result in spurious interrupts and a confused guest).

To avoid this, save and restore the active state together with the
rest of the GIC registers.

Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Russell King <linux@arm.linux.org.uk>
Link: http://lkml.kernel.org/r/1447701208-18150-5-git-send-email-marc.zyngier@arm.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>