Vol. 3C 35-235
MODEL-SPECIFIC REGISTERS (MSRS)
C92H
3218
IA32_L3_QOS_MASK_2
Package
L3 Class Of Service Mask - COS 2 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0] >=2
0:19
CBM: Bit vector of available L3 ways for COS 2 enforcement
63:20
Reserved
C93H
3219
IA32_L3_QOS_MASK_3
Package
L3 Class Of Service Mask - COS 3 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0] >=3
0:19
CBM: Bit vector of available L3 ways for COS 3 enforcement
63:20
Reserved
C94H
3220
IA32_L3_QOS_MASK_4
Package
L3 Class Of Service Mask - COS 4 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0] >=4
0:19
CBM: Bit vector of available L3 ways for COS 4 enforcement
63:20
Reserved
C95H
3221
IA32_L3_QOS_MASK_5
Package
L3 Class Of Service Mask - COS 5 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0] >=5
0:19
CBM: Bit vector of available L3 ways for COS 5 enforcement
63:20
Reserved
C96H
3222
IA32_L3_QOS_MASK_6
Package
L3 Class Of Service Mask - COS 6 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0] >=6
0:19
CBM: Bit vector of available L3 ways for COS 6 enforcement
63:20
Reserved
C97H
3223
IA32_L3_QOS_MASK_7
Package
L3 Class Of Service Mask - COS 7 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0] >=7
0:19
CBM: Bit vector of available L3 ways for COS 7 enforcement
63:20
Reserved
C98H
3224
IA32_L3_QOS_MASK_8
Package
L3 Class Of Service Mask - COS 8 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0] >=8
0:19
CBM: Bit vector of available L3 ways for COS 8 enforcement
63:20
Reserved
C99H
3225
IA32_L3_QOS_MASK_9
Package
L3 Class Of Service Mask - COS 9 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0] >=9
0:19
CBM: Bit vector of available L3 ways for COS 9 enforcement
63:20
Reserved
C9AH
3226
IA32_L3_QOS_MASK_10
Package
L3 Class Of Service Mask - COS 10 (R/W).
if CPUID.(EAX=10H, ECX=1):EDX.COS_MAX[15:0]
>=10
0:19
CBM: Bit vector of available L3 ways for COS 10 enforcement
63:20
Reserved
Table 35-34. Additional MSRs Common to Intel® Xeon® Processor D and Intel Xeon Processors E5 v4 Family Based
on the Broadwell Microarchitecture
Register
Address
Register Name
Scope
Bit Description
Hex
Dec