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[4/8] arm: Synchronize CPU on PSCI on

Message ID 20201126215017.41156-5-agraf@csgraf.de
State New
Headers show
Series hvf: Implement Apple Silicon Support | expand

Commit Message

Alexander Graf Nov. 26, 2020, 9:50 p.m. UTC
We are going to reuse the TCG PSCI code for HVF. This however means that we
need to ensure that CPU register state is synchronized properly between the
two worlds.

So let's make sure that at least on the PSCI on call, the secondary core gets
to sync its registers after reset, so that changes also propagate.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
 target/arm/arm-powerctl.c | 3 +++
 1 file changed, 3 insertions(+)
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diff --git a/target/arm/arm-powerctl.c b/target/arm/arm-powerctl.c
index b75f813b40..256f7cfdcd 100644
--- a/target/arm/arm-powerctl.c
+++ b/target/arm/arm-powerctl.c
@@ -15,6 +15,7 @@ 
 #include "arm-powerctl.h"
 #include "qemu/log.h"
 #include "qemu/main-loop.h"
+#include "sysemu/hw_accel.h"
@@ -66,6 +67,8 @@  static void arm_set_cpu_on_async_work(CPUState *target_cpu_state,
     target_cpu_state->halted = 0;
+    cpu_synchronize_state(target_cpu_state);
     if (info->target_aa64) {
         if ((info->target_el < 3) && arm_feature(&target_cpu->env,
                                                  ARM_FEATURE_EL3)) {