tree 0fd5b1963f2a7e455d94357ae49be5c8cbbf6395
parent 45e96ea6b369539a37040a8df9c59a39f073d9d6
author Marc Zyngier <marc.zyngier@arm.com> 1358724493 -0500
committer Christoffer Dall <c.dall@virtualopensystems.com> 1358965758 -0500

KVM: ARM: Power State Coordination Interface implementation

Implement the PSCI specification (ARM DEN 0022A) to control
virtual CPUs being "powered" on or off.

PSCI/KVM is detected using the KVM_CAP_ARM_PSCI capability.

A virtual CPU can now be initialized in a "powered off" state,
using the KVM_ARM_VCPU_POWER_OFF feature flag.

The guest can use either SMC or HVC to execute a PSCI function.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Christoffer Dall <c.dall@virtualopensystems.com>