You might want to look at Firmware Test Suite, it includes a Linux kernel driver to help with it's interactions with UEFI. Note that this is a Linux-centric test suite, solution won't work for other OSes.
http://kernel.ubuntu.com/git/hwe/fwts.git https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1633506 https://patchwork.kernel.org/patch/9323781/ http://www.basicinputoutput.com/2016/03/introduction-to-firmware-test-suite-fwts.html HTH, Lee Fisher On 09/05/2017 12:32 AM, Marvin H?user wrote: > Good morning, > > 1.) Do you mean whether the OS exposes the Runtime Services? Windows and > Linux expose the Variable Services (Linux even more, if I remember correctly) > and macOS (not entirely sure about the latest version) the entire table via > DeviceTree. > 2.) Yes, you need to write a DXE Runtime Driver. One way to do it is install > an UEFI Protocol and let the UEFI OS loader store its address (pay attention > to allocate the structure from Runtime memory, update the pointers when going > virtual and not use any Boot Services), another is to use the UEFI > Configuration Table. Though remember that the OS still has hardware > ownership, you might need to use Management Mode for your ideas. If you > target Windows, I'm afraid software MMIs/ACPI or a shim for the RT Variable > Services ("execute on variable write") are the only ways I know as you of > course cannot alter the bootloader or access the System Table at runtime. > > Regards, > Marvin. > >> -----Original Message----- >> From: edk2-devel [mailto:edk2-devel-boun...@lists.01.org] On Behalf Of >> ankit.sin...@dell.com >> Sent: Tuesday, September 5, 2017 7:21 AM >> To: edk2-devel@lists.01.org >> Subject: [edk2] Accessing RT services from OS >> >> Hi All, >> >> Wanted to access RT services from OS. >> 1.) Are there any already such exposed OS function or utilities ? >> 2.) Can we plugin our own service/function to RT at run-time. ? >> >> Regards, >> Ankit Singh >> >> _______________________________________________ >> edk2-devel mailing list >> edk2-devel@lists.01.org >> https://lists.01.org/mailman/listinfo/edk2-devel > _______________________________________________ > edk2-devel mailing list > edk2-devel@lists.01.org > https://lists.01.org/mailman/listinfo/edk2-devel > _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
