arm64: KVM: PSCI implementation

[karo-tx-linux.git] / arch / arm64 / include / uapi / asm / kvm.h

diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
index ebac919dc0cad16bf9c69790f55c524c23142b81..fb60f90370577d316a9c7070e011add38d5aafe1 100644 (file)
--- a/arch/arm64/include/uapi/asm/kvm.h
+++ b/arch/arm64/include/uapi/asm/kvm.h
@@ -69,6 +69,8 @@ struct kvm_regs {
 #define KVM_VGIC_V2_DIST_SIZE          0x1000
 #define KVM_VGIC_V2_CPU_SIZE           0x2000
 
+#define KVM_ARM_VCPU_POWER_OFF         0 /* CPU is started in OFF state */
+
 struct kvm_vcpu_init {
        __u32 target;
        __u32 features[7];
@@ -141,6 +143,20 @@ struct kvm_arch_memory_slot {
 /* Highest supported SPI, from VGIC_NR_IRQS */
 #define KVM_ARM_IRQ_GIC_MAX            127
 
+/* PSCI interface */
+#define KVM_PSCI_FN_BASE               0x95c1ba5e
+#define KVM_PSCI_FN(n)                 (KVM_PSCI_FN_BASE + (n))
+
+#define KVM_PSCI_FN_CPU_SUSPEND                KVM_PSCI_FN(0)
+#define KVM_PSCI_FN_CPU_OFF            KVM_PSCI_FN(1)
+#define KVM_PSCI_FN_CPU_ON             KVM_PSCI_FN(2)
+#define KVM_PSCI_FN_MIGRATE            KVM_PSCI_FN(3)
+
+#define KVM_PSCI_RET_SUCCESS           0
+#define KVM_PSCI_RET_NI                        ((unsigned long)-1)
+#define KVM_PSCI_RET_INVAL             ((unsigned long)-2)
+#define KVM_PSCI_RET_DENIED            ((unsigned long)-3)
+
 #endif
 
 #endif /* __ARM_KVM_H__ */