* Icenowy Zheng <icenowy@xxxxxxxx> wrote: > > > 10.08.2016, 20:52, "Ingo Molnar" <mingo@xxxxxxxxxx>: > > * Icenowy Zheng <icenowy@xxxxxxxx> wrote: > > > >> Some broken firmwares have a wrongly filled version field in BGRT table. > >> (See http://wiki.osdev.org/Broken_UEFI_implementations ) > >> > >> As we know, these firmwares can also provide correct BGRT image, although > >> the table is wrong. > >> > >> After removing the check of the version field, the kernel can now extract > >> the image correctly, and the information is also correct. > >> > >> Tested on a Thinkpad E531 (68854UC). > > > > What's the practical effects of the bug - what problems does a missing > > /sys/firmware/acpi/bgrt/ cause? > > Currently nothing uses this featues. However, one of my friend is trying to > develop a splash screen which uses ACPI BGRT, like the splash screen > of Windows 8 and above. > Without the directory, there won't be any way to retrieve the vendor splash > logo. Ok - please add this information to the changelog. Acked-by: Ingo Molnar <mingo@xxxxxxxxxx> Thanks, Ingo -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
