From: Mohamed Mediouni <mohamed@unpredictable.fr>

Unconditionally enable some more enlightenments for whpx.  In
particular, linux uses AccessVpRegs without checking availability and
panics if it's not there, so it's important to expose it.

We also had a duplicate line where we set AccessHypercallRegs = 1
twice; remove the duplicate.

Microsoft’s VMM exposes SyncContext on arm64 and FastHypercallOutput
regardless of architecture unconditionally, so add those two to match
that configuration.

Signed-off-by: Mohamed Mediouni <mohamed@unpredictable.fr>
Message-id: 20260314221529.47841-4-mohamed@unpredictable.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 target/arm/whpx/whpx-all.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/target/arm/whpx/whpx-all.c b/target/arm/whpx/whpx-all.c
index 3df60a950d..9e5bc03a21 100644
--- a/target/arm/whpx/whpx-all.c
+++ b/target/arm/whpx/whpx-all.c
@@ -832,6 +832,7 @@ int whpx_accel_init(AccelState *as, MachineState *ms)
     UINT32 whpx_cap_size;
     WHV_PARTITION_PROPERTY prop;
     WHV_CAPABILITY_FEATURES features;
+    WHV_SYNTHETIC_PROCESSOR_FEATURES_BANKS synthetic_features;
     MachineClass *mc = MACHINE_GET_CLASS(ms);
     int pa_range = 0;
 
@@ -942,7 +943,6 @@ int whpx_accel_init(AccelState *as, MachineState *ms)
     }
 
     /* Enable synthetic processor features */
-    WHV_SYNTHETIC_PROCESSOR_FEATURES_BANKS synthetic_features;
     memset(&synthetic_features, 0, sizeof(WHV_SYNTHETIC_PROCESSOR_FEATURES_BANKS));
     synthetic_features.BanksCount = 1;
 
@@ -953,13 +953,15 @@ int whpx_accel_init(AccelState *as, MachineState *ms)
     synthetic_features.Bank0.AccessPartitionReferenceTsc = 1;
     synthetic_features.Bank0.AccessHypercallRegs = 1;
     synthetic_features.Bank0.AccessVpIndex = 1;
-    synthetic_features.Bank0.AccessHypercallRegs = 1;
     synthetic_features.Bank0.TbFlushHypercalls = 1;
     synthetic_features.Bank0.AccessSynicRegs = 1;
     synthetic_features.Bank0.AccessSyntheticTimerRegs = 1;
     synthetic_features.Bank0.AccessIntrCtrlRegs = 1;
     synthetic_features.Bank0.SyntheticClusterIpi = 1;
     synthetic_features.Bank0.DirectSyntheticTimers = 1;
+    synthetic_features.Bank0.FastHypercallOutput = 1;
+    synthetic_features.Bank0.AccessVpRegs = 1;
+    synthetic_features.Bank0.SyncContext = 1;
 
     /*
      * On ARM64, have enlightenments off by default
-- 
2.43.0