Vol. 3C 35-291
MODEL-SPECIFIC REGISTERS (MSRS)
20BH
523
IA32_MTRR_PHYSMASK5
0, 1, 2, 3,
4, 6
Shared
Variable Range Mask MTRR
See Section 11.11.2.3, “Variable Range MTRRs.”
20CH
524
IA32_MTRR_PHYSBASE6
0, 1, 2, 3,
4, 6
Shared
Variable Range Mask MTRR
See Section 11.11.2.3, “Variable Range MTRRs.”
20DH
525
IA32_MTRR_PHYSMASK6
0, 1, 2, 3,
4, 6
Shared
Variable Range Mask MTRR
See Section 11.11.2.3, “Variable Range MTRRs.”
20EH
526
IA32_MTRR_PHYSBASE7
0, 1, 2, 3,
4, 6
Shared
Variable Range Mask MTRR
See Section 11.11.2.3, “Variable Range MTRRs.”
20FH
527
IA32_MTRR_PHYSMASK7
0, 1, 2, 3,
4, 6
Shared
Variable Range Mask MTRR
See Section 11.11.2.3, “Variable Range MTRRs.”
250H
592
IA32_MTRR_FIX64K_00000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
258H
600
IA32_MTRR_FIX16K_80000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
259H
601
IA32_MTRR_FIX16K_A0000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
268H
616
IA32_MTRR_FIX4K_C0000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
269H
617
IA32_MTRR_FIX4K_C8000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs”.
26AH
618
IA32_MTRR_FIX4K_D0000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs”.
26BH
619
IA32_MTRR_FIX4K_D8000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
26CH
620
IA32_MTRR_FIX4K_E0000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
26DH
621
IA32_MTRR_FIX4K_E8000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
26EH
622
IA32_MTRR_FIX4K_F0000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
26FH
623
IA32_MTRR_FIX4K_F8000
0, 1, 2, 3,
4, 6
Shared
Fixed Range MTRR
See Section 11.11.2.2, “Fixed Range MTRRs.”
277H
631
IA32_PAT
0, 1, 2, 3,
4, 6
Unique
Page Attribute Table
See Section 11.11.2.2, “Fixed Range MTRRs.”
2FFH
767
IA32_MTRR_DEF_TYPE
0, 1, 2, 3,
4, 6
Shared
Default Memory Types (R/W)
See Table 35-2.
See Section 11.11.2.1, “IA32_MTRR_DEF_TYPE
300H
768
MSR_BPU_COUNTER0
0, 1, 2, 3,
4, 6
Shared
See Section 18.12.2, “Performance Counters.”
Table 35-41. MSRs in the Pentium® 4 and Intel® Xeon® Processors (Contd.)
Register
Address
Register Name
Fields and Flags
Model
Avail-
ability
Shared/
Unique
1
Bit Description
Hex
Dec