James Morse 985bf39913 KVM: arm/arm64: Handle CPU_PM_ENTER_FAILED ... commit 58d6b15e9d upstream. cpu_pm_enter() calls the pm notifier chain with CPU_PM_ENTER, then if there is a failure: CPU_PM_ENTER_FAILED. When KVM receives CPU_PM_ENTER it calls cpu_hyp_reset() which will return us to the hyp-stub. If we subsequently get a CPU_PM_ENTER_FAILED, KVM does nothing, leaving the CPU running with the hyp-stub, at odds with kvm_arm_hardware_enabled. Add CPU_PM_ENTER_FAILED as a fallthrough for CPU_PM_EXIT, this reloads KVM based on kvm_arm_hardware_enabled. This is safe even if CPU_PM_ENTER never gets as far as KVM, as cpu_hyp_reinit() calls cpu_hyp_reset() to make sure the hyp-stub is loaded before reloading KVM. Fixes: 67f6919766 ("arm64: kvm: allows kvm cpu hotplug") CC: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: James Morse <james.morse@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2018-02-16 20:23:03 +01:00
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kvm	KVM: arm/arm64: Handle CPU_PM_ENTER_FAILED	2018-02-16 20:23:03 +01:00
lib	KVM: eventfd: fix NULL deref irqbypass consumer	2017-01-12 14:42:34 +01:00
Makefile	virt: Add virt directory to the top Makefile	2015-10-01 15:06:44 +02:00