What is an address translation in powerISA jarogn ?

Section 5.7.3
"Storage accesses in real, hypervisor real, and virtual real
addressing modes are performed in a manner that depends on the
contents of MSR HV , VPM, VRMASD, HRMOR, RMLS, RMOR (see Chapter 2),
bit 0 of the
effective address (EA0),"

Hello
1. If MSR_IR = 0 and MSR_DR = 0, does it mean that addresses are not
translated by the MMU ?
2. If EA0 is the 63-rd bit of the effective address e address ? Does
this mean that the translation model is
   derived from the address ? a non privileged context may access
privileged memory.

thank you