Technical specifications
8.7 BIOS description
SIMATIC IPC427D
152 Operating Instructions, 05/2017, A5E31347215-AB
Advanced menu > "Chipset Configuration" submenu
VT-d VT-d (Intel Virtualization Technology for Directed I/O) is hard-
ware support for the shared use of I/O devices by multiple
virtual machines.
When VT-d is enabled, VMM (Virtual Machine Monitor) sys-
tems can use it to manage multiple virtual machines access-
ing the same physical I/O device.
When VT-d is disabled, it is not available for VMM.
The virtualization software has direct access to interrupts.
Pass-Through DMA The virtualization software has direct access to DMA chan-
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