On 06/21/2018 04:44 AM, Simon Glass wrote:
Hi Alex,
On 18 June 2018 at 09:53, Alexander Graf <[email protected]> wrote:
On 06/18/2018 05:22 PM, Alexander Graf wrote:
This patch set augments Simon's patch set for efi_loader support
in sandbox[1], but cuts off the memory allocation scheme at a different
point.
According to the UEFI spec, efi_allocate_pages() takes a uint64_t *
argument. Via this argument, we get a physical address as input, but
emit a pointer as output.
With this patch set in place, I can successfully run the selftest suite
as well as an aarch64 grub.efi binary. X86_64 grub.efi doesn't work
because that one requires inl instructions to work.
I've assembled a quick grub.efi that does work in sandbox as it no longer
accesses I/O ports directly. Patch for it is below.
http://csgraf.de/tmp2/grub.efi
When building your own, make sure to exclude coreboot (cb*) modules - they
seem to do something dirty and segfault for me. The other modules seem to
work fine for me so far.
OK thanks for that. The binary says this for me:
efi_load_pe: Invalid DOS signature
I'm running on x86_64.
Are you using my patch set or yours? In mine this should be fixed.
I tried the patch below but it still crashes, presumably because of
the coreboot modules. How do I actually exclude them? I cannot see
anything in ./configure --help
When you call grub-mkimage you explicitly pass a list of modules to
include. In that list, just omit any module that starts with cb :)
Alex
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