Virtual legacy wires (VLW) are transactions over the
Intel QuickPath Interconnect and
Intel Ultra Path Interconnect
The Intel Ultra Path Interconnect (UPI) is a point-to-point processor interconnect developed by Intel which replaced the Intel QuickPath Interconnect (QPI) in Xeon Skylake-SP platforms starting in 2017.
Interconnect
UPI is a low-latency coheren ...
interconnect fabrics that replace a particular set of physical legacy pins on Intel microprocessors. The legacy wires replaced include the INTR, A20M, and SMI legacy signals.
See also
*
A20 line
*
INTR
*
System Management Mode
References
X86 architecture
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