On 16 February 2016 at 21:25, Baicar, Tyler <tbaicar@xxxxxxxxxxxxxx> wrote: > On 2/15/2016 4:32 AM, Ard Biesheuvel wrote: >> >> ESRT support is built by default for all architectures that define >> CONFIG_EFI. However, this support was not wired up yet for ARM/arm64, >> since efi_esrt_init() was never called. So add the missing call. >> >> Since efi_esrt_init() uses efi_mem_desc_lookup(), which in turn relies >> on efi.memmap having been assigned and populated completetely, add the >> missing assignments of efi.memmap and efi.memmap->nr_map. >> >> Signed-off-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> >> --- >> drivers/firmware/efi/arm-init.c | 3 +++ >> 1 file changed, 3 insertions(+) >> >> diff --git a/drivers/firmware/efi/arm-init.c >> b/drivers/firmware/efi/arm-init.c >> index 9e15d571b53c..5c5e799bdb50 100644 >> --- a/drivers/firmware/efi/arm-init.c >> +++ b/drivers/firmware/efi/arm-init.c >> @@ -197,10 +197,13 @@ void __init efi_init(void) >> memmap.map_end = memmap.map + params.mmap_size; >> memmap.desc_size = params.desc_size; >> memmap.desc_version = params.desc_ver; >> + memmap.nr_map = params.mmap_size / params.desc_size; >> + efi.memmap = &memmap; >> if (uefi_init() < 0) >> return; >> + efi_esrt_init(); > > This call to efi_esrt_init() is failing because efi.flags does not have > EFI_MEMMAP set. This flag gets set at the end of reserve_regions(). I tested > moving the set_bit() call from reserve_regions() to just before > efi_esrt_init() and also tested moving efi_esrt_init() to just after > reserve_regions(). Both of these options worked. Thanks for spotting that. I moved the call around for some reason (I don't remember why, exactly), but it indeed belongs after the call to reserve_regions() I will send out a v2 >> >> reserve_regions(); >> early_memunmap(memmap.map, params.mmap_size); >> memblock_mark_nomap(params.mmap & PAGE_MASK, > > Thanks, > Tyler > > -- > Qualcomm Innovation Center, Inc. > Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, > a Linux Foundation Collaborative Project > -- 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
