diff mbox series

[kvmtool,20/21] aarch64: psci: Implement SYSTEM_{OFF,RESET}

Message ID 20230526221849.317435-1-oliver.upton@linux.dev (mailing list archive)
State New, archived
Headers show
Series arm64: Handle PSCI calls in userspace | expand

Commit Message

Oliver Upton May 26, 2023, 10:18 p.m. UTC 
Add support for the PSCI SYSTEM_{OFF,RESET} calls. Match the behavior of
the SYSTEM_EVENT based implementation and just terminate the VM.

Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
 arm/aarch64/psci.c | 6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

diff --git a/arm/aarch64/psci.c b/arm/aarch64/psci.c
index c33e63bdc3ef..daeb6f11f2d0 100644
--- a/arm/aarch64/psci.c
+++ b/arm/aarch64/psci.c
@@ -33,6 +33,8 @@  static void psci_features(struct kvm_cpu *vcpu, struct arm_smccc_res *res)
 	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 ARM_SMCCC_VERSION_FUNC_ID:
 		res->a0 = PSCI_RET_SUCCESS;
 		break;
@@ -194,6 +196,10 @@  void handle_psci(struct kvm_cpu *vcpu, struct arm_smccc_res *res)
 		/* Trusted OS not present */
 		res->a0 = PSCI_0_2_TOS_MP;
 		break;
+	case PSCI_0_2_FN_SYSTEM_OFF:
+	case PSCI_0_2_FN_SYSTEM_RESET:
+		kvm__reboot(vcpu->kvm);
+		break;
 	default:
 		res->a0 = PSCI_RET_NOT_SUPPORTED;
 	}