arm: kvm: implement CPU PM notifier
Upon CPU shutdown and consequent warm-reboot, the hypervisor CPU state must be re-initialized. This patch implements a CPU PM notifier that upon warm-boot calls a KVM hook to reinitialize properly the hypervisor state so that the CPU can be safely resumed. Acked-by: NMarc Zyngier <marc.zyngier@arm.com> Acked-by: NChristoffer Dall <christoffer.dall@linaro.org> Signed-off-by: NLorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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