On 2017-03-18 at 18:00, Sam Kuper wrote:
The page https://www.coreboot.org/index.php?title=Board:lenovo/x201&oldid=24709#F... says:
The flash memory in the X201 is divided into roughly 4 parts:
- Descriptor (12K)
- ME firmware (5M-12K)
- Rewriteable flash (3M-96K)
- Locked bootblock (96K)
I guess that "K" refers to kibibytes and that "M" refers to mebibytes.
Correct.
I also guess that the values in parentheses refer to the sizes of the corresponding occupants of the flash memory, with the "-" symbol representing "minus". This was not my first guess, but is the one that seems to make the most sense.
I'm not familiar with Ibex Peak's standard flash layout, but this sounds correct. The 12-KiB "Descriptor" should contain both the Intel Flash Descriptor and the Gigabit Ethernet Region. And the region sizes by that math add up to 8 MiB, which sounds right.