Currently, the CPU features exposed to the AST2600 QEMU machines are :

  half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt
  vfpd32 lpae evtstrm

But, the features of the Cortex A7 CPU on the Aspeed AST2600 A3 SoC
are :

  half thumb fastmult vfp edsp vfpv3 vfpv3d16 tls vfpv4 idiva idivt
  lpae evtstrm

Drop NEON support in the Aspeed AST2600 SoC.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 hw/arm/aspeed_ast2600.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/arm/aspeed_ast2600.c b/hw/arm/aspeed_ast2600.c
index dcdc9bc54456..af987fd418ec 100644
--- a/hw/arm/aspeed_ast2600.c
+++ b/hw/arm/aspeed_ast2600.c
@@ -330,6 +330,8 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
 
         object_property_set_int(OBJECT(&s->cpu[i]), "cntfrq", 1125000000,
                                 &error_abort);
+        object_property_set_bool(OBJECT(&s->cpu[i]), "neon", false,
+                                &error_abort);
         object_property_set_link(OBJECT(&s->cpu[i]), "memory",
                                  OBJECT(s->memory), &error_abort);
 
-- 
2.37.3

On Wed, 28 Sept 2022 at 16:47, Cédric Le Goater <clg@kaod.org> wrote:
>
> Currently, the CPU features exposed to the AST2600 QEMU machines are :
>
>   half thumb fastmult vfp edsp neon vfpv3 tls vfpv4 idiva idivt
>   vfpd32 lpae evtstrm
>
> But, the features of the Cortex A7 CPU on the Aspeed AST2600 A3 SoC
> are :
>
>   half thumb fastmult vfp edsp vfpv3 vfpv3d16 tls vfpv4 idiva idivt
>   lpae evtstrm
>
> Drop NEON support in the Aspeed AST2600 SoC.
>
> Signed-off-by: Cédric Le Goater <clg@kaod.org>

Reviewed-by: Joel Stanley <joel@jms.id.au>