diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-02-06 17:56:09 +0000 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2018-03-23 11:37:14 +0800 |
| commit | ac6362178fdef06cabcc39d8203b227eb9692b8d (patch) | |
| tree | 20b36487973870b4c5153b3e83adbc97d1779993 | |
| parent | a3b6374df4bc18cee6753cf8f3c1c1cf8a0888f5 (diff) | |
arm/arm64: KVM: Add PSCI_VERSION helper
commit d0a144f12a7c upstream.
As we're about to trigger a PSCI version explosion, it doesn't
hurt to introduce a PSCI_VERSION helper that is going to be
used everywhere.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Tested-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Alex Shi <alex.shi@linaro.org>
| -rw-r--r-- | arch/arm/kvm/psci.c | 2 | ||||
| -rw-r--r-- | include/kvm/arm_psci.h | 6 | ||||
| -rw-r--r-- | include/uapi/linux/psci.h | 3 |
3 files changed, 8 insertions, 3 deletions
diff --git a/arch/arm/kvm/psci.c b/arch/arm/kvm/psci.c index 237ff1e392f8..85fc21b43f6f 100644 --- a/arch/arm/kvm/psci.c +++ b/arch/arm/kvm/psci.c @@ -219,7 +219,7 @@ static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu) * Bits[31:16] = Major Version = 0 * Bits[15:0] = Minor Version = 2 */ - val = 2; + val = KVM_ARM_PSCI_0_2; break; case PSCI_0_2_FN_CPU_SUSPEND: case PSCI_0_2_FN64_CPU_SUSPEND: diff --git a/include/kvm/arm_psci.h b/include/kvm/arm_psci.h index 2042bb909474..5659343580a3 100644 --- a/include/kvm/arm_psci.h +++ b/include/kvm/arm_psci.h @@ -18,8 +18,10 @@ #ifndef __KVM_ARM_PSCI_H__ #define __KVM_ARM_PSCI_H__ -#define KVM_ARM_PSCI_0_1 1 -#define KVM_ARM_PSCI_0_2 2 +#include <uapi/linux/psci.h> + +#define KVM_ARM_PSCI_0_1 PSCI_VERSION(0, 1) +#define KVM_ARM_PSCI_0_2 PSCI_VERSION(0, 2) int kvm_psci_version(struct kvm_vcpu *vcpu); int kvm_psci_call(struct kvm_vcpu *vcpu); diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h index 3d7a0fc021a7..39930ca998cd 100644 --- a/include/uapi/linux/psci.h +++ b/include/uapi/linux/psci.h @@ -87,6 +87,9 @@ (((ver) & PSCI_VERSION_MAJOR_MASK) >> PSCI_VERSION_MAJOR_SHIFT) #define PSCI_VERSION_MINOR(ver) \ ((ver) & PSCI_VERSION_MINOR_MASK) +#define PSCI_VERSION(maj, min) \ + ((((maj) << PSCI_VERSION_MAJOR_SHIFT) & PSCI_VERSION_MAJOR_MASK) | \ + ((min) & PSCI_VERSION_MINOR_MASK)) /* PSCI features decoding (>=1.0) */ #define PSCI_1_0_FEATURES_CPU_SUSPEND_PF_SHIFT 1 |