Filter
Top Products
ZPR
Zone Protection Register
10-54 PPC405 Core User’s Manual
ZPR
SPR 0x3B0
See “Zone Protection” on page 7-14.
Figure 10-37. Zone Protection Register (ZPR)
0:1 Z0 TLB page access control for all pages in this zone.
In the problem state (MSR[PR] = 1):
00 No access
01 Access controlled by applicable
TLB_entry[EX, WR]
10 Access controlled by applicable
TLB_entry[EX, WR]
11 Accessed as if execute and write
permissions (TLB_entry[EX, WR]) are
granted
In the supervisor state (MSR[PR] = 0):
00 Access controlled by applicable
TLB_entry[EX, WR]
01 Access controlled by applicable
TLB_entry[EX, WR]
10 Accessed as if execute and write
permissions (TLB_entry[EX, WR]) are
granted
11 Accessed as if execute and write
permissions (TLB_entry[EX, WR]) are
granted
2:3 Z1 See the description of Z0.
4:5 Z2 See the description of Z0.
6:7 Z3 See the description of Z0.
8:9 Z4 See the description of Z0.
10:11 Z5 See the description of Z0.
12:13 Z6 See the description of Z0.
14:15 Z7 See the description of Z0.
16:17 Z8 See the description of Z0.
18:19 Z9 See the description of Z0.
20:21 Z10 See the description of Z0.
22:23 Z11 See the description of Z0.
24:25 Z12 See the description of Z0.
26:27 Z13 See the description of Z0.
28:29 Z14 See the description of Z0.
30:31 Z15 See the description of Z0.
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
Z0
Z1
Z2
Z3
Z6Z4
Z5
Z8 Z10 Z12 Z14
Z7 Z9 Z11 Z13 Z15