MPAMF_IMPL_IDR MPAM Implementation-Specific Partitioning Feature Identification Register The power domain of MPAMF_IMPL_IDR is IMPLEMENTATION DEFINED when (FEAT_MPAMv0p1 is implemented or FEAT_MPAMv1p0 is implemented) and MPAMF_IDR.HAS_IMPL_IDR == '1' MPAM MPAMF_BASE_s 0x0028 MPAMF_IMPL_IDR_s When FEAT_MPAMv1p0 is implemented or FEAT_MPAMv0p1 is implemented RO MPAM MPAMF_BASE_ns 0x0028 MPAMF_IMPL_IDR_ns When FEAT_MPAMv1p0 is implemented or FEAT_MPAMv0p1 is implemented RO MPAM MPAMF_BASE_rt 0x0028 MPAMF_IMPL_IDR_rt When FEAT_RME is implemented and (FEAT_MPAMv1p0 is implemented or FEAT_MPAMv0p1 is implemented) RO MPAM MPAMF_BASE_rl 0x0028 MPAMF_IMPL_IDR_rl When FEAT_RME is implemented and (FEAT_MPAMv1p0 is implemented or FEAT_MPAMv0p1 is implemented) RO Indicates the implementation-defined partitioning and monitoring features and parameters of the MSC. MPAM If MPAMF_IDR.HAS_RIS is 1, this register gives the implementation-specific features and parameters of the resource instance selected by MPAMCFG_PART_SEL.RIS for any features that are specific to the resource. If FEAT_MPAMv1p0 or FEAT_MPAMv0p1 is implemented, then the following statements apply: MPAMF_IMPL_IDR_s indicates IMPLEMENTATION DEFINED partitioning and monitoring features accessed from the Secure MPAM feature page. MPAMF_IMPL_IDR_ns indicates those accessed from the Non-secure MPAM feature page. If FEAT_RME is implemented, then the following statements also apply: MPAMF_IMPL_IDR_rt indicates IMPLEMENTATION DEFINED partitioning and monitoring features accessed from the Root MPAM feature page. MPAMF_IMPL_IDR_rl indicates those accessed from the Realm MPAM feature page. The power and reset domain of each MSC component is specific to that component. MPAMF_IMPL_IDR is a 32-bit register. IMPLFEAT 31 0 31:0 All 32 bits of this register are available to be used as the implementer sees fit to indicate the presence of IMPLEMENTATION DEFINED MPAM features in this MSC and to give additional implementation-specific read-only information about the parameters of implementation-specific MPAM features to software. If RIS is implemented, this register indicates the implementation-specific features and parameters of the resource instance selected by MPAMCFG_PART_SEL.RIS. This field has an IMPLEMENTATION DEFINED value. RO When FEAT_MPAMv0p1 is implemented or FEAT_MPAMv1p1 is implemented IMPLEMENTATION DEFINED 31 0 31:0 All 32 bits of this register are available to be used as the implementer sees fit to indicate the presence of IMPLEMENTATION DEFINED MPAM features in this MSC and to give additional implementation-specific read-only information about the parameters of implementation-specific MPAM features to software. Otherwise If both FEAT_MPAM and FEAT_RME are implemented, the following statements apply: In a system that supports Secure, Non-secure, Root, and Realm memory maps, there must be MPAM feature pages in all four address maps. MPAMF_IMPL_IDR must be readable from the Non-secure, Secure, Root, and Realm MPAM feature pages. MPAMF_IMPL_IDR is permitted to have the same contents when read from the Secure, Non-secure, Root, and Realm MPAM feature pages unless the register contents are different for the different versions: MPAMF_IMPL_IDR_s is permitted to have either the same or different contents to MPAMF_IMPL_IDR_ns, MPAMF_IMPL_IDR_rt, or MPAMF_IMPL_IDR_rl. MPAMF_IMPL_IDR_ns is permitted to have either the same or different contents to MPAMF_IMPL_IDR_rt or MPAMF_IMPL_IDR_rl. MPAMF_IMPL_IDR_rt is permitted to have either the same or different contents to MPAMF_IMPL_IDR_rl. There must be separate registers in the Secure (MPAMF_IMPL_IDR_s), Non-secure (MPAMF_IMPL_IDR_ns), Root (MPAMF_IMPL_IDR_rt), and Realm (MPAMF_IMPL_IDR_rl) MPAM feature pages. If any one of these features is implemented: FEAT_MPAMv0p1 FEAT_MPAMv1p1 then, the following statements apply: When MPAMF_IDR.HAS_RIS is 1, MPAMF_IMPL_IDR shows the configuration of implementation-specific features for the resource instance selected by MPAMCFG_PART_SEL.RIS. Fields that mention RIS in their field descriptions have values that track the implemented properties of the resource instance. Fields that do not mention RIS are constant across all resource instances. 2026-03-26 20:27:25 2026-03_rel