[PATCH 2/3] arm64: efi: Ensure efi_create_mapping() does not map overlapping regions

[Matt Fleming]

On Thu, 02 Jun, at 05:56:21PM, Catalin Marinas wrote:
> 
> Ard to confirm but I think the reason is the relative offset between
> code and data regions that must be preserved. For example, on Juno I
> get:
> 
> [    0.000000] efi:   0x0009fff6e000-0x0009fffaefff [Runtime Code       |RUN|  |  |  |  |  |  |   |WB|WT|WC|UC]*
> [    0.000000] efi:   0x0009fffaf000-0x0009ffffefff [Runtime Data       |RUN|  |  |  |  |  |  |   |WB|WT|WC|UC]*
> 
> Since the code may assume relative loads from the data section, we need
> to preserve this offset (which doesn't seem 64KB aligned).

Yeah, figures. Could you mention this in the changelog or in a code
comment?