Simple Firmware Interface
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Simple Firmware Interface (SFI) is developed by Intel Corporation as a lightweight method for firmware to export static tables to the operating system. It is supported by Intel's hand-held Moorestown platform.
SFI tables are data structures in memory, and all SFI tables share a common table header format. The operating system finds the system table by searching 16 byte boundaries between physical address 0x000E0000 and 0x000FFFFF. SFI has CPU, APIC, Memory Map, Idle, Frequency, M-Timer, M-RTC, OEMx, Wake Vector, I²C Device, and a SPI Device table.
SFI provides access to a standard ACPI XSDT (Extended System Description Table). XSDT is used by SFI to prevent namespace collision between SPI and ACPI. It can access standard ACPI tables such as PCI Memory Configuration Table (MCFG).
SFI support was merged into Linux kernel 2.6.32-rc1;[1]
References
- ^ {{cite web v5.12-rc1 |url=http://lkml.iu.edu/hypermail/linux/kernel/2102.3/00702.html |website=lkml.iu.edu |publisher=LKML |access-date=26 February 2021}}
External links
- Brown, Len; Kamp, Kerry Vander (2010-10-19). "Simple Firmware Interface - Draft 0.8.2" (PDF).
- Brown, A. Leonard (2009). "The Simple Firmware Interface" (PDF). Ottawa Linux Symposium 2009.