The VMPIDR_EL2 characteristics are:
Provides the value of the Virtualization Multiprocessor ID. This is the value returned by Non-secure EL1 reads of MPIDR.
- Usage constraints
This register is accessible as follows:
(SCR.NS = 1)
(SCR.NS = 0)
- - - RW RW -
VMPIDR_EL2[31:0] is architecturally mapped to AArch32 register VMPIDR. See Virtualization Multiprocessor ID Register.
VMPIDR_EL2 is a 64-bit register.
VMPIDR_EL2 resets to the value of MPIDR_EL1.
Figure 4.27 shows the VMPIDR_EL2 bit assignments.
Table 4.70 shows the VMPIDR_EL2 bit assignments.
MPIDR value returned by Non-secure EL1 reads of the MPIDR_EL1. The MPIDR description defines the subdivision of this value. See Table 4.20.
To access the VMPIDR_EL2:
MRS <Xt>, VMPIDR_EL2 ; Read VMPIDR_EL2 into Xt MSR VMPIDR_EL2, <Xt> ; Write Xt to VMPIDR_EL2
Register access is encoded as follows: