ARM Cortex-A15 MPCore Processor Technical Reference Manual

System Control31 0VPIDRTable 4-50 shows the VPIDR bit assignments.Bits Name FunctionFigure 4-21 VPIDR bit assignmentsTable 4-50 VPIDR bit assignments[31:0] VPIDR MIDR value returned by Non-secure PL1 reads of the MIDR. Forinformation on the subdivision of this value, see Main ID Registeron page 4-27.To access the VPIDR, read or write the CP15 register with:MRC p15, 4, , c0, c0, 0; Read Virtualization Processor ID RegisterMCR p15, 4, , c0, c0, 0; Write Virtualization Processor ID Register4.3.26 Virtualization Multiprocessor ID RegisterThe VMPIDR characteristics are:PurposeHolds the value of the Virtualization Multiprocessor ID. A Non-secureread of the MPIDR from PL1 returns the value of this register.Usage constraints The VMPIDR is:• A read/write register.• Only accessible from Hyp mode or from Monitor mode whenSCR.NS is 1.ConfigurationsAvailable in all configurations.Attributes See the register summary in Table 4-2 on page 4-4.Figure 4-22 shows the VMPIDR bit assignments.31 0VMPIDRTable 4-51 shows the VMPIDR bit assignments.Bits Name FunctionFigure 4-22 VMPIDR bit assignmentsTable 4-51 VMPIDR bit assignments[31:0] VMPIDR MPIDR value returned by Non-secure PL1 reads of the MPIDR. Forinformation on the subdivision of this value, see MultiprocessorAffinity Register on page 4-29.To access the VMPIDR, read or write the CP15 register with:MRC p15, 4, , c0, c0, 5; Read Virtualization Multiprocessor ID RegisterARM DDI 0438I Copyright © 2011-2013 ARM. All rights reserved. 4-53ID062913Non-Confidential