System and method to securely map UEFI RAMDISK using DMAR table for securely launching SOS contents
US11341250B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2019 |
| Grant date | May 24, 2022 |
| Priority date | — |
| Expiry date | Jan 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2213/0026
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An information handling system may include a processor, a network interface, and a basic input/output system (BIOS) configured to execute a pre-boot environment. The information handling system may be configured to: during execution of the pre-boot environment, establish a pre-boot network connection to a remote information handling system via the network interface; receive operating system data from the remote information handling system; create a pseudo-device at a specified address of the information handling system; perform direct memory access (DMA) remapping between the pseudo-device and an address range of memory of the information handling system to create a ram disk; and based on the operating system data received from the remote information handling system, initialize an operating system on the ram disk via the specified address of the pseudo-device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.