Datasheet

Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family 381
Datasheet Volume Two: Functional Description, February 2014
Integrated I/O (IIO) Configuration Registers
14.6.47 VTUNCERRSEV
Intel
®
VT-d Uncorrectable Error Severity.
Type: CFG PortID: N/A
Bus: 0 Device: 5Function:0
Offset: 0x1b0
Bit Attr Default Description
31:31 RWS 0x0
vtderr_sev:
When set, this bit escalates reporting of Intel
®
VT-d spec defined errors, as
FATAL errors. When clear, those errors are escalated as Nonfatal errors.
Setting this bit to a 1 can allow a guest VM to trigger an unrecoverable FATAL
error at the platform. It is HIGHLY recommended that BIOS keep this bit set
to 0, as such behavior is generally undesirable.
30:9 RV -
Reserved1:
Reserved.
8:8 RWS 0x1
protmemviol_sev:
Protected memory region space violated severity.
7:7 RWS 0x1
miscerrsev:
6:6 RWS 0x0
unsucc_ci_rdcp_sev:
Unsuccessful status received in the coherent interface read completion
severity.
5:5 RWS 0x1
perr_tlb1_sev:
TLB1 Parity Error severity.
4:4 RWS 0x1
perr_tlb0_sev:
TLB1 Parity Error severity.
3:3 RWS 0x1
perr_l3_lookup_sev:
Data Parity error while doing a L3 lookup severity
2:2 RWS 0x1
perr_l2_lookup_sev:
Data Parity error while doing a L2 lookup severity
1:1 RWS 0x1
perr_l1_lookup_sev:
Data Parity error while doing a L1 lookup severity
0:0 RWS 0x1
perr_context_cache_sev:
Data Parity error while doing a context cache lookup severity.