Hi Nathan,

On 3/9/26 8:21 PM, Nathan Chen wrote:
> From: Nathan Chen <[email protected]>
>
> Introduce a new enum type property allowing to set an Output Address
> Size. Values are auto, 44, and 48, where a value of N specifies an
> N-bit OAS.
>
> Signed-off-by: Nathan Chen <[email protected]>
> ---
>  hw/core/qdev-properties-system.c         | 13 +++++++++++++
>  include/hw/core/qdev-properties-system.h |  3 +++
>  qapi/misc-arm.json                       | 16 ++++++++++++++++
>  3 files changed, 32 insertions(+)
>
> diff --git a/hw/core/qdev-properties-system.c 
> b/hw/core/qdev-properties-system.c
> index 4aca1d4326..a805ee2e1f 100644
> --- a/hw/core/qdev-properties-system.c
> +++ b/hw/core/qdev-properties-system.c
> @@ -737,6 +737,19 @@ const PropertyInfo qdev_prop_ssidsize_mode = {
>      .set_default_value = qdev_propinfo_set_default_value_enum,
>  };
>  
> +/* --- OasMode --- */
> +
> +QEMU_BUILD_BUG_ON(sizeof(OasMode) != sizeof(int));
> +
> +const PropertyInfo qdev_prop_oas_mode = {
> +    .type = "OasMode",
> +    .description = "oas mode: auto, 32, 36, 40, 42, 44, 48, 52, 56",
> +    .enum_table = &OasMode_lookup,
> +    .get = qdev_propinfo_get_enum,
> +    .set = qdev_propinfo_set_enum,
> +    .set_default_value = qdev_propinfo_set_default_value_enum,
> +};
> +
>  /* --- Reserved Region --- */
>  
>  /*
> diff --git a/include/hw/core/qdev-properties-system.h 
> b/include/hw/core/qdev-properties-system.h
> index 4708885164..2cbea16d61 100644
> --- a/include/hw/core/qdev-properties-system.h
> +++ b/include/hw/core/qdev-properties-system.h
> @@ -15,6 +15,7 @@ extern const PropertyInfo qdev_prop_mig_mode;
>  extern const PropertyInfo qdev_prop_granule_mode;
>  extern const PropertyInfo qdev_prop_zero_page_detection;
>  extern const PropertyInfo qdev_prop_ssidsize_mode;
> +extern const PropertyInfo qdev_prop_oas_mode;
>  extern const PropertyInfo qdev_prop_losttickpolicy;
>  extern const PropertyInfo qdev_prop_blockdev_on_error;
>  extern const PropertyInfo qdev_prop_bios_chs_trans;
> @@ -64,6 +65,8 @@ extern const PropertyInfo qdev_prop_virtio_gpu_output_list;
>                         ZeroPageDetection)
>  #define DEFINE_PROP_SSIDSIZE_MODE(_n, _s, _f, _d) \
>      DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_ssidsize_mode, SsidSizeMode)
> +#define DEFINE_PROP_OAS_MODE(_n, _s, _f, _d) \
> +    DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_oas_mode, OasMode)
>  #define DEFINE_PROP_LOSTTICKPOLICY(_n, _s, _f, _d) \
>      DEFINE_PROP_SIGNED(_n, _s, _f, _d, qdev_prop_losttickpolicy, \
>                          LostTickPolicy)
> diff --git a/qapi/misc-arm.json b/qapi/misc-arm.json
> index b372a3661b..76b6965502 100644
> --- a/qapi/misc-arm.json
> +++ b/qapi/misc-arm.json
> @@ -60,3 +60,19 @@
>  { 'enum': 'SsidSizeMode',
>    'data': [ 'auto', '0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
>              '10', '11', '12', '13', '14', '15', '16', '17', '18', '19', '20' 
> ] }
> +
> +##
> +# @OasMode:
> +#
> +# SMMUv3 Output Address Size configuration mode.
> +#
> +# @auto: derive from host IOMMU capabilities
> +#
> +# @44: 44-bit output address size
> +#
> +# @48: 48-bit output address size
> +#
> +# Since: 11.0
> +##
> +{ 'enum': 'OasMode',
> +  'data': [ 'auto', '44', '48' ] }
you also miss other enum values

Thanks

Eric


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