4.2.12. AArch64 virtualization registers

Table 4.13 shows the virtualization registers in AArch64 state. Bits[63:32] are reset to 0x00000000 for all 64-bit registers in Table 4.13.

Table 4.13. AArch64 virtualization registers

NameTypeResetWidthDescription
VPIDR_EL2RW-[a]32Virtualization Processor ID Register, EL2
VMPIDR_EL2RW-[b]64Virtualization Multiprocessor ID Register, EL2
SCTLR_EL2RW0x30C5083832

Secure Control Register, EL3 [c]

ACTLR_EL2RW0x0000000032Auxiliary Control Register, EL2
HCR_EL2RW0x0000000064Hypervisor Configuration Register, EL2
MDCR_EL2RW0x00000006[d]32

Monitor Debug Configuration Register, EL2 [c]

CPTR_EL2RW0x000033FF32

Architectural Feature Trap Register, EL2

HSTR_EL2RW0x0000000032Hypervisor System Trap Register
HACR_EL2RW0x0000000032

Hyp Auxiliary Configuration Register

TTBR0_EL2RWUNK64

Translation Table Base Address Register 0, EL3 [c]

TCR_EL2RWUNK32Translation Control Register, EL2
VTTBR_EL2RWUNK64

Virtualization Translation Table Base Address Register, EL2 [c]

VTCR_EL2RWUNK32Virtualization Translation Control Register, EL2
DACR32_EL2RW0x0000000032

Domain Access Control Register, EL2 [c]

AFSR0_EL2RWres032Auxiliary Fault Status Register 0, EL2 and Hyp Auxiliary Data Fault Status Register
AFSR1_EL2RWres032Auxiliary Fault Status Register 1, EL2 and Hyp Auxiliary Instruction Fault Status Register
ESR_EL2RW0x0000000032

Exception Syndrome Register, EL2 [c]

FAR_EL2RWUNK64

Fault Address Register, EL2 [c]

HPFAR_EL2RW0x0000000064

Hyp IPA Fault Address Register, EL2 [c]

MAIR_EL2RWUNK64

Memory Attribute Indirection Register, EL2 [c]

AMAIR_EL2RWres064Auxiliary Memory Attribute Indirection Register, EL2
VBAR_EL2RWUNK64

Vector Base Address Register, EL2 [c]

[a] The reset value is the value of the Main ID Register.

[b] The reset value is the value of the Multiprocessor Affinity Register.

[c] See the ARM® Architecture Reference Manual ARMv8 for more information.

[d] The reset value for bit[7] is UNK.


Copyright © 2013, 2014 ARM. All rights reserved.ARM DDI 0488D
Non-ConfidentialID012914