[PULL,13/25] hw/arm/sbsa-ref: Use two-stage SMMU

Commit Message

Peter Maydell Sept. 5, 2024, 1 p.m. UTC

Now that our SMMU model supports enabling both stages of translation
at once, we can enable this in the sbsa-ref board.  Existing guest
code that only programs stage 1 and doesn't care about stage 2 should
continue to run with the same behaviour, but guests that do want to
do nested SMMU configurations can now do so.

Signed-off-by: Peter Maydell <[e-mail]>
Reviewed-by: Eric Auger <[e-mail]>
Reviewed-by: Daniel P. Berrangé <[e-mail]>
Reviewed-by: Marcin Juszkiewicz <[e-mail]>
Message-id: [e-mail]
---
 hw/arm/sbsa-ref.c | 1 +
 1 file changed, 1 insertion(+)

Patch

diff --git a/hw/arm/sbsa-ref.c b/hw/arm/sbsa-ref.c
index ae37a923015..396abe9c1bd 100644
--- a/hw/arm/sbsa-ref.c
+++ b/hw/arm/sbsa-ref.c
@@ -621,6 +621,7 @@  static void create_smmu(const SBSAMachineState *sms, PCIBus *bus)
 
     dev = qdev_new(TYPE_ARM_SMMUV3);
 
+    object_property_set_str(OBJECT(dev), "stage", "nested", &error_abort);
     object_property_set_link(OBJECT(dev), "primary-bus", OBJECT(bus),
                              &error_abort);
     sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);