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48 Intel® Xeon® Processor E5-1600 v2/E5-2600 v2 Product Families
Datasheet Volume One of Two
2.5.2.6.12 Package Identifier Read
This feature enables the PECI host to uniquely identify the PECI client processor. The
parameter field encodings shown in Table 2-8 allow the PECI host to access the
relevant processor information as described below.
Package
Power Limits
for Multiple
Turbo Modes
27 0x0000 N/A Power Limit 2
Data
Write power limit
data 2 in multiple
turbo mode.
MSR 610h:
PACKAGE_POWER_LIMIT
CSR: PACKAGE_POWER_LIMIT
Package
Power Limits
for Multiple
Turbo Modes
26 0x0000 Power Limit 1
Data
N/A Read power limit 1
data in multiple
turbo mode.
MSR 610h:
PACKAGE_POWER_LIMIT
CSR: PACKAGE_POWER_LIMIT
Package
Power Limits
for Multiple
Turbo Modes
27 0x0000 Power Limit 2
Data
N/A Read power limit 2
data in multiple
turbo mode.
MSR 610h:
PACKAGE_POWER_LIMIT
CSR: PACKAGE_POWER_LIMIT
Package
Power Limit
Performance
Status Read
08 0x00FF -
CPU
package
Accumulated
CPU throttle
time
N/A Read the total time
for which the
processor package
was throttled due to
power limiting.
CSR:
PACKAGE_RAPL_PERF_STATUS
Efficient
Performance
Indicator Read
06 0x0000 Number of
productive
processor
cycles
N/A Read number of
productive cycles for
power budgeting
purposes.
N/A
ACPI P-T
Notify Write &
Read
33 0x0000 N/A New p-state
equivalent of
P1 used in
conjunction
with package
power limiting
Notify the processor
PCU of the new p-
state that is one
state below the
turbo frequency as
specified through the
last ACPI Notify
N/A
ACPI P-T
Notify Write &
Read
33 0x0000 New p-state
equivalent of
P1 used in
conjunction
with package
power limiting
N/A Read the processor
PCU to determine
the p-state that is
one state below the
turbo frequency as
specified through the
last ACPI Notify
N/A
Caching Agent
TOR Read
39 Cbo Index,
TOR Index,
Bank#;
Read Mode
Caching Agent
(Cbo) Table of
Requests
(TOR) data;
Core ID &
associated
valid bit
N/A Read the Cbo TOR
data for all enabled
cores in the event of
a 3-strike timeout.
Can alternatively be
used to read ‘Core
ID’ data to confirm
that IERR was
caused by a core
timeout
N/A
Thermal
Margin Read
10 0x0000 Thermal
margin to
processor
thermal profile
or load line
N/A Read margin to
processor thermal
load line
N/A
Table 2-8. RdPkgConfig() & WrPkgConfig() CPU Thermal and Power Optimization
Services Summary (Sheet 3 of 3)
Service
Index
Value
(decimal)
Parameter
Value
(word)
RdPkgConfig
()
Data
(dword)
WrPkgConfig
()
Data
(dword)
Description
Alternate
Inband
MSR or CSR
Access