On Thu, Feb 20, 2025 at 04:30:43PM +0000, Jonathan Cameron wrote: > > > > > Example CEDT Entries (truncated) > > Subtable Type : 00 [CXL Host Bridge Structure] > > Reserved : 00 > > Length : 0020 > > Associated host bridge : 00000005 > > > > Subtable Type : 01 [CXL Fixed Memory Window Structure] > > Reserved : 00 > > Length : 002C > > Reserved : 00000000 > > Window base address : 000000C050000000 > > Window size : 0000003CA0000000 > > > > If this memory is NOT marked "Special Purpose" by BIOS (next section), > > Specific purpose. You don't want to know how long that term took to > agree on... > Oh man how'd i muck that up. Thanks for the correction. I suppose I can/should re-issue all of these with corrections accordingly. Maybe even convert this into a documentation somewhere :sweat: > > you should find a matching entry EFI Memory Map and /proc/iomem > > > > BIOS-e820: [mem 0x000000c050000000-0x000000fcefffffff] usable > > Trivial but that's not the EFI memory map, that's the e820. > On some architectures this really will be coming from the EFI memory map. > You're right, though on my system they're equivalent, just plucked the wrong thing out of dmesg. Will correct. ~Gregory
