IBM A2 User Manual page 276

User's Manual
A2 Processor
Table 6-15. MAS Register Update Summary
MAS Field Updated
Data or Instruction TLB
MAS6
SAS
EPLC
MAS7
RPNU
MAS8
TGS VF TLPID
1. If MSR = 0 (32-bit mode) at the time of the exception, EPN
CM
2. If EHCSR = 0; otherwise, the interrupt is directed to the guest state.
DMIUH
3. These fields are not implemented and are shown for reference only.
4. The respective LRAT fields are returned when MAS0
5. MAS3 is loaded with TLB
RPNL[52]
6. MAS3 is loaded with '0' when TLB
SR
7. MAS5 and MAS8 are not updated on a data or instruction TLB error interrupt. The hypervisor must ensure that they already con-
tain values appropriate to the partition.
8. EPLC values are used for data TLB error interrupts for external process ID loads (category E.PD).
9. EPSC values are used for data TLB error interrupts for external process ID stores (category E.PD).
Memory Management
Page 276 of 864
(Sheet 2 of 2)
2
Error Interrupt
MSR or MSR or
DS IS
8 9
or EPSC
EAS EAS
0
7
— TLB
ATSEL
when TLB = 1; otherwise, it receives '0'.
SR IND
= 1; otherwise, it receives TLB
IND
Value Loaded on Event
tlbsx hit tlbsx miss
—
TLB
RPN[22:31]
TGS VF TLPID
are set to 0.
0:31
= 1.
.
SR
tlbre
— —
0 TLB
RPN[22:31]
— TLB
TGS VF TLPID
October 23, 2012
4
Version 1.3