Re: [U-Boot] [PATCH v3] efi_loader: Reserve unaccessible memory

2018-12-02 Thread Baruch Siach
Hi Alexander, Alexander Graf writes: > On some systems, not all RAM may be usable within U-Boot. Maybe the > memory maps are incomplete, maybe it's used as workaround for broken > DMA. But whatever the reason may be, a platform can say that it does > not wish to have its RAM accessed above a cert

Re: [U-Boot] [PATCH v3] efi_loader: Reserve unaccessible memory

2018-11-30 Thread Heinrich Schuchardt
On 11/30/18 9:24 PM, Alexander Graf wrote: > On some systems, not all RAM may be usable within U-Boot. Maybe the > memory maps are incomplete, maybe it's used as workaround for broken > DMA. But whatever the reason may be, a platform can say that it does > not wish to have its RAM accessed above a

[U-Boot] [PATCH v3] efi_loader: Reserve unaccessible memory

2018-11-30 Thread Alexander Graf
On some systems, not all RAM may be usable within U-Boot. Maybe the memory maps are incomplete, maybe it's used as workaround for broken DMA. But whatever the reason may be, a platform can say that it does not wish to have its RAM accessed above a certain address by defining board_get_usable_ram_to