Re: [RFC PATCH v2 10/10] target/arm/hvf: Allow EL2/EL3 emulation on Silicon M1 / M2

[Richard Henderson]

On 8/13/25 03:32, Philippe Mathieu-Daudé wrote:

Signed-off-by: Philippe Mathieu-Daudé <phi...@linaro.org>
---
Another API PoC.
---
  target/arm/hvf/hvf.c | 6 +++++-
  1 file changed, 5 insertions(+), 1 deletion(-)

I imagine this waits until accel/split is present?  If so,

Reviewed-by: Richard Henderson <richard.hender...@linaro.org>


r~

diff --git a/target/arm/hvf/hvf.c b/target/arm/hvf/hvf.c
index 84c0c0275d6..df63584f456 100644
--- a/target/arm/hvf/hvf.c
+++ b/target/arm/hvf/hvf.c
@@ -17,6 +17,7 @@
  #include "system/hvf.h"
  #include "system/hvf_int.h"
  #include "system/hw_accel.h"
+#include "system/tcg.h"
  #include "hvf_arm.h"
  #include "cpregs.h"
  #include "cpu-sysregs.h"
@@ -585,11 +586,14 @@ bool host_cpu_feature_supported(enum arm_features feature)
      case ARM_FEATURE_GENERIC_TIMER:
          return true;
      case ARM_FEATURE_EL2:
+        if (tcg_enabled()) {
+            return true;
+        }
          ret = hv_vm_config_get_el2_supported(&supported);
          assert_hvf_ok(ret);
          return supported;
      case ARM_FEATURE_EL3:
-        return false;
+        return tcg_enabled();
      default:
          g_assert_not_reached();
      }