Intel BB5520UR Product Specification - Page 74

Functional Architecture Intel® Server Boards S5520HC, S5500HCV, and S5520HCT TPS 3.15 Intel® Virtualization Technology Intel® Virtualization Technology is designed to support multiple software environments sharing the same hardware resources. Each software environment may consist of an operating system and applications. You can enable or disable the Intel® Virtualization Technology in the BIOS Setup. The default behavior is disabled. Note: After changing the Intel® Virtualization Technology option (disable or enable) in the BIOS setup, users must perform an AC power cycle before the change takes effect. 3.15.1 Intel® Virtualization Technology for Directed IO (VT-d) The Intel® Server Boards S5520HC, S5500HCV and S5520HCT support DMA remapping from inbound PCI Express* memory Guest Physical Address (GPA) to Host Physical Address (HPA). PCI devices are directly assigned to a virtual machine leading to a robust and efficient virtualization. You can enable or disable the Intel® Virtualization Technology for Directed I/O in the BIOS Setup. The default behavior is disabled. Note: After changing the Intel® Virtualization Technology for Directed I/O options (disable or enable) in the BIOS setup, users must perform an AC power cycle before the changes can take effect. 60 Revision 1.8 Intel order number E39529-013