The DACR32_EL2 characteristics are:
Allows access to the AArch32 DACR register from AArch64 state only. Its value has no effect on execution in AArch64 state.
- Usage constraints
This register is accessible as follows:
(SCR.NS = 1)
(SCR.NS = 0)
- - - RW RW RW
DACR32_EL2 is architecturally mapped to AArch32 register DACR (NS). See Domain Access Control Register.
DACR32_EL2 is a 32-bit register.
Figure 4.47 shows the DACR32_EL2 bit assignments.
Table 4.91 shows the DACR32_EL2 bit assignments.
D<n>, bits [2n+1:2n], for n = 0 to 15
Domain n access permission, where n = 0 to 15. Permitted values are:
To access the DACR32_EL2:
MRS <Xt>, DACR32_EL2 ; Read DACR32_EL2 into Xt MSR DACR32_EL2, <Xt> ; Write Xt to DACR32_EL2