Add EFI_NOT_READY return if the CPU can not be enabled if the
processor is already on.
This can occur in normal use if the CPU is still being turned off from
a previous call when this is called again.
Signed-off-by: Jeff Brasen <jbra...@nvidia.com>
---
ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.c
b/ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.c
index f822a9877c..e7f4223513 100644
--- a/ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.c
+++ b/ArmPkg/Drivers/ArmPsciMpServicesDxe/ArmPsciMpServicesDxe.c
@@ -103,7 +103,9 @@ DispatchCpu (
ArmCallSmc (&Args);
- if (Args.Arg0 != ARM_SMC_PSCI_RET_SUCCESS) {
+ if (Args.Arg0 == ARM_SMC_PSCI_RET_ALREADY_ON) {
+ Status = EFI_NOT_READY;
+ } else if (Args.Arg0 != ARM_SMC_PSCI_RET_SUCCESS) {
DEBUG ((DEBUG_ERROR, "PSCI_CPU_ON call failed: %d\n", Args.Arg0));
Status = EFI_DEVICE_ERROR;
}
--
2.25.1
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