diff options
| author | Marc Zyngier <marc.zyngier@arm.com> | 2018-02-06 17:56:09 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2018-02-06 22:53:56 +0000 |
| commit | d0a144f12a7ca8368933eae6583c096c363ec506 (patch) | |
| tree | 9cfb945f9b554eba767ec62bd61d901beb596f0f | |
| parent | 1a2fb94e6a771ff94f4afa22497a4695187b820c (diff) | |
arm/arm64: KVM: Add PSCI_VERSION helper
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>
| -rw-r--r-- | include/kvm/arm_psci.h | 6 | ||||
| -rw-r--r-- | include/uapi/linux/psci.h | 3 | ||||
| -rw-r--r-- | virt/kvm/arm/psci.c | 4 |
3 files changed, 8 insertions, 5 deletions
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 760e52a9640f..b3bcabe380da 100644 --- a/include/uapi/linux/psci.h +++ b/include/uapi/linux/psci.h @@ -88,6 +88,9 @@ (((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 diff --git a/virt/kvm/arm/psci.c b/virt/kvm/arm/psci.c index b322e46fd142..999f94d6bb98 100644 --- a/virt/kvm/arm/psci.c +++ b/virt/kvm/arm/psci.c @@ -25,8 +25,6 @@ #include <kvm/arm_psci.h> -#include <uapi/linux/psci.h> - /* * This is an implementation of the Power State Coordination Interface * as described in ARM document number ARM DEN 0022A. @@ -222,7 +220,7 @@ 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: |