Datasheet

Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family 163
Datasheet Volume Two: Functional Description, February 2014
Processor Uncore Configuration Registers
13.6.1.3 GIDNIDMAP
Node ID Mapping Register.
Mapping between group id and nodeid
6:4 RW_LB 0x0
Redirection Mode Select for Logical Interrupts (RdrModSel):
Selects the redirection mode used for MSI interrupts with lowest-priority
delivery mode. The following schemes are used:
000 : Fixed Priority - select the first enabled APIC in the cluster.
001: Redirect last - last vector selected (applicable only in extended mode)
010 : Hash Vector - select the first enabled APIC in round robin manner
starting form the hash of the vector number.
default: Fixed Priority
3:2 RV - Reserved.
1:1 RW_LB 0x0
Force to X2 APIC Mode (ForceX2APIC):
Write:
1: Forces the system to move into X2APIC Mode.
0: No affect
0:0 RW_LB 0x1
Extended APIC Enable (xApicEn):
Set this bit if you would like extended XAPIC configuration to be used. This
bit can be written directly, and can also be updated using XTPR messages
Type: CFG PortID: N/A
Bus: 1 Device: 11 Function: 0
Offset: 0x48
Bit Attr Default Description
Type: CFG PortID: N/A
Bus: 1 Device: 11 Function: 0
Offset: 0x54
Bit Attr Default Description
31:24 RV - Reserved.
23:21 RW_LB 0x0
Node Id 7 (NodeId7):
NodeId for group id 7
20:18 RW_LB 0x0
Node Id 6 (NodeId6):
Node Id for group 6
17:15 RW_LB 0x0
Node Id 5 (NodeId5):
Node Id for group 5
14:12 RW_LB 0x0
Node Id 4 (NodeId4):
Node Id for group id 4
11:9 RW_LB 0x0
Node Id 3 (NodeId3):
Node Id for group 3
8:6 RW_LB 0x0
Node Id 2 (NodeID2):
Node Id for group Id 2