[Qemu-devel] [RFC PATCH] target-arm/psci.c: wake up sleeping CPUs (MTTCG)

[Alex Bennée]

Testing with Alexander's bare metal syncronisation tests fails in MTTCG
leaving one CPU spinning forever waiting for the second CPU to wake up.
We simply need to poke the halt_cond once we have processed the PSCI
power on call.

Tested-by: Alex Bennée <address@hidden>
CC: Alexander Spyridakis <address@hidden>

---
TODO
  - exactly how does the vexpress wake up it's sleeping CPUs?
---
 target-arm/psci.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/target-arm/psci.c b/target-arm/psci.c
index d8fafab..661ff28 100644
--- a/target-arm/psci.c
+++ b/target-arm/psci.c
@@ -196,6 +196,8 @@ void arm_handle_psci_call(ARMCPU *cpu)
         }
         target_cpu_class->set_pc(target_cpu_state, entry);
 
+        qemu_cond_signal(target_cpu_state->halt_cond);
+
         ret = 0;
         break;
     case QEMU_PSCI_0_1_FN_CPU_OFF:
-- 
2.4.3