[coreboot] Problems changing payload on Intel Leaf Hill
unlich at gmail.com
Wed Oct 11 14:59:48 CEST 2017
Thanks for all the replies so far! Many things to consider and try out, I
am busy investigating and will get back once I have more details!
On Wed, Oct 11, 2017 at 3:35 AM, Melissa Yi <huayi at celestica.com> wrote:
> Hi Tahnia,
> Have you tried 32-bit UEFI payload? I met this problem in Denverton
> platfrom too with 64-bitUEFI payload.
> Melissa Yi
> BIOS Lead Engineer
> Celestica(Shanghai) R&D Center, China
> Solid Partners, Flexible Solutions
> 2017-10-10 16:29 GMT+08:00 Tahnia Lichtenstein <unlich at gmail.com>:
>> I am trying to build coreboot for the Intel Apollo Lake-I reference board
>> (Oxbow Hill, similar to Leaf Hill).
>> Intel has provided an implementation for this reference board based on an
>> outdated coreboot version.
>> Along with the coreboot implementation, they provided a compatible
>> pre-compiled UEFI payload (with no source, but run-time boot menu looks
>> like Tianocore's) and a compatible pre-compiled U-Boot payload (with links
>> to U-Boot source on Github along with patch so as to reproduce the
>> pre-compiled binary). The pre-compiled binaries have associated .config
>> files for coreboot integration. When building coreboot with either of the
>> precompiled binaries, and stitching the coreboot output binaries together
>> with Intel-provided blobs (using Intel provided FIT application) to produce
>> the final firmware image, the firmware works as expected.
>> Then I built this version of coreboot with a self-compiled payload, such
>> as Tianocore UDK2017 CorebootPayloadPkg or SeaBIOS, using the .confg files
>> provided by Intel for UEFI payloads or legacy payloads respectively (just
>> modified for specific payload type and path, and disabling verified and
>> measured boot). I stitched the coreboot output with the Intel-provided
>> blobs using the exact same method as before. Then, in run-time, coreboot
>> transitions to the payload and nothing happens from then on (i.e. no
>> further serial debug messages, no change to display monitor).
>> I also built U-Boot from github, applying Intel's patch to match Intel's
>> precompiled binary, and this self-compiled binary works in run-time (well,
>> sort of, there are a couple of problems but point is the payload runs). A
>> notable build difference is that this build uses the .config file provided
>> by Intel as is, and that the payload that was built is the binary
>> equivalent of the Intel pre-compiled binary.
>> Am I not specifying the correct configuration options for Tianocore and
>> SeaBIOS? I.e. is there more to it than just selecting the payload type and
>> specifying the payload path? Do I need to configure or update memory
>> addresses or ranges to match payload sizes, or some such? Do I need to make
>> specific changes to the payloads' source code to support the platform? Any
>> advice on how/where to start debugging?
>> (Serial debug logs and .config files attached.)
>> Best regards,
>> coreboot mailing list: coreboot at coreboot.org
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