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arm/arm64: KVM: Implement PSCI 1.0 support

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PSCI 1.0 can be trivially implemented by providing the FEATURES
call on top of PSCI 0.2 and returning 1.0 as the PSCI version.

We happily ignore everything else, as they are either optional or
are clarifications that do not require any additional change.

PSCI 1.0 is now the default until we decide to add a userspace
selection API.

Reviewed-by: Christoffer Dall <[email protected]>
Tested-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>
This commit is contained in:
Marc Zyngier 2018-02-06 17:56:11 +00:00 • committed by Catalin Marinas
commit 58e0b2239a
2 changed files with 47 additions and 1 deletions
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3
include/kvm/arm_psci.h
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@ -22,6 +22,9 @@
#define KVM_ARM_PSCI_0_1 PSCI_VERSION(0, 1)
#define KVM_ARM_PSCI_0_2 PSCI_VERSION(0, 2)
#define KVM_ARM_PSCI_1_0 PSCI_VERSION(1, 0)
#define KVM_ARM_PSCI_LATEST KVM_ARM_PSCI_1_0
int kvm_psci_version(struct kvm_vcpu *vcpu);
int kvm_psci_call(struct kvm_vcpu *vcpu);