On Tue, Dec 31, 2019 at 05:05:47PM +0100, Borislav Petkov wrote: > looks like mfleming meant the opposite: some apple laptops don't like > the 1:1 runtime mapping. But there might be more and I believe mjg59 had > some use case at the time but I could be remembering it wrong. I've lost most of the context for this over the years, I'm afraid. The case I remember was that the EFI reboot code on some hardware would attempt to access physical addresses and we wanted some form of 1:1 mapping to handle that, but I really don't remember what the larger details were. -- Matthew Garrett | mjg59@xxxxxxxxxxxxx
