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target/arm: Allow users to set the number of VFP registers

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Cortex A7 CPUs with an FPU implementing VFPv4 without NEON support
have 16 64-bit FPU registers and not 32 registers. Let users set the
number of VFP registers with a CPU property.

The primary use case of this property is for the Cortex A7 of the
Aspeed AST2600 SoC.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
This commit is contained in:
Cédric Le Goater 2023-06-07 06:39:43 +02:00
parent f65f6ad5a7
commit 42bea956f6
3 changed files with 36 additions and 0 deletions
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2
hw/arm/aspeed_ast2600.c
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@ -316,6 +316,8 @@ static void aspeed_soc_ast2600_realize(DeviceState *dev, Error **errp)
&error_abort);
object_property_set_bool(OBJECT(&s->cpu[i]), "neon", false,
&error_abort);
object_property_set_bool(OBJECT(&s->cpu[i]), "vfp-d32", false,
&error_abort);
object_property_set_link(OBJECT(&s->cpu[i]), "memory",
OBJECT(s->memory), &error_abort);