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Diffstat (limited to 'virt/kvm/arm/psci.c')
-rw-r--r--virt/kvm/arm/psci.c45
1 files changed, 44 insertions, 1 deletions
diff --git a/virt/kvm/arm/psci.c b/virt/kvm/arm/psci.c
index c41553d35110..3e7c63e15f04 100644
--- a/virt/kvm/arm/psci.c
+++ b/virt/kvm/arm/psci.c
@@ -234,7 +234,7 @@ static void kvm_psci_system_reset(struct kvm_vcpu *vcpu)
int kvm_psci_version(struct kvm_vcpu *vcpu)
{
if (test_bit(KVM_ARM_VCPU_PSCI_0_2, vcpu->arch.features))
- return KVM_ARM_PSCI_0_2;
+ return KVM_ARM_PSCI_LATEST;
return KVM_ARM_PSCI_0_1;
}
@@ -313,6 +313,47 @@ static int kvm_psci_0_2_call(struct kvm_vcpu *vcpu)
return ret;
}
+static int kvm_psci_1_0_call(struct kvm_vcpu *vcpu)
+{
+ u32 psci_fn = smccc_get_function(vcpu);
+ u32 feature;
+ unsigned long val;
+ int ret = 1;
+
+ switch(psci_fn) {
+ case PSCI_0_2_FN_PSCI_VERSION:
+ val = KVM_ARM_PSCI_1_0;
+ break;
+ case PSCI_1_0_FN_PSCI_FEATURES:
+ feature = smccc_get_arg1(vcpu);
+ switch(feature) {
+ case PSCI_0_2_FN_PSCI_VERSION:
+ case PSCI_0_2_FN_CPU_SUSPEND:
+ case PSCI_0_2_FN64_CPU_SUSPEND:
+ case PSCI_0_2_FN_CPU_OFF:
+ case PSCI_0_2_FN_CPU_ON:
+ case PSCI_0_2_FN64_CPU_ON:
+ case PSCI_0_2_FN_AFFINITY_INFO:
+ case PSCI_0_2_FN64_AFFINITY_INFO:
+ case PSCI_0_2_FN_MIGRATE_INFO_TYPE:
+ case PSCI_0_2_FN_SYSTEM_OFF:
+ case PSCI_0_2_FN_SYSTEM_RESET:
+ case PSCI_1_0_FN_PSCI_FEATURES:
+ val = 0;
+ break;
+ default:
+ val = PSCI_RET_NOT_SUPPORTED;
+ break;
+ }
+ break;
+ default:
+ return kvm_psci_0_2_call(vcpu);
+ }
+
+ smccc_set_retval(vcpu, val, 0, 0, 0);
+ return ret;
+}
+
static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
{
struct kvm *kvm = vcpu->kvm;
@@ -355,6 +396,8 @@ static int kvm_psci_0_1_call(struct kvm_vcpu *vcpu)
int kvm_psci_call(struct kvm_vcpu *vcpu)
{
switch (kvm_psci_version(vcpu)) {
+ case KVM_ARM_PSCI_1_0:
+ return kvm_psci_1_0_call(vcpu);
case KVM_ARM_PSCI_0_2:
return kvm_psci_0_2_call(vcpu);
case KVM_ARM_PSCI_0_1: