All about UEFI. Both threads are merged. Beta testers are welcome.

Discussion in 'BIOS Mods' started by doakh, Oct 21, 2009.

  1. Yen

    Yen Admin
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    May 6, 2007
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    I have merged both threads. We want to play at one place only.
     
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  2. Archy

    Archy MDL Novice

    Nov 10, 2009
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    Hmm... Does this method suit original MacBook with original EFI?
     
  3. catdog215

    catdog215 MDL Senior Member

    Oct 21, 2009
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    hi all,

    in this thread and if everything goes well with tool on EFI, will this be able to mod intel MB bios since my intel DG45ID is an EFI bios? thx
     
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  4. asabaraba

    asabaraba MDL Novice

    Oct 24, 2009
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    Thanks !, I'll test in a couple of minutes.

    Which OEM Brand did you use ?
     
  5. middleton

    middleton MDL Novice

    Nov 17, 2009
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    I added ASUS SLIC, see attachment.
     
  6. Yen

    Yen Admin
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  7. middleton

    middleton MDL Novice

    Nov 17, 2009
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    Thanks Yen, but I found a correct way to add SLIC table five days ago :). I was simply afraid that if I would make all changes at once and computer would not boot with modded BIOS, I'd not be able to understand where was a mistake.
    So I decided to separate changes into several stages. I'm sure now: the working BIOS with SLIC table will be available very soon. Wait for a little.
     
  8. catdog215

    catdog215 MDL Senior Member

    Oct 21, 2009
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    will this work for intel bios, EFI, on board DG45ID? thx
     
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  9. middleton

    middleton MDL Novice

    Nov 17, 2009
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    The answer is probably "Yes". But I haven't analyzed Intel BIOSes yet.
     
  10. asabaraba

    asabaraba MDL Novice

    Oct 24, 2009
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    Great work middleton :)
     
  11. Yen

    Yen Admin
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    I assume it works now.
    midleton, so you have realised it by patching the 16D0A23E-C09C-407D-A14A-AD058FDD0CA1_1 (same idea I had, too).

    I'm still convinced to introduce the SLIC by adding it as EFI_ACPI_TABLE_STORAGE_GUID is an alternative way..what do you think?
     
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  12. middleton

    middleton MDL Novice

    Nov 17, 2009
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    Yen
    Let me remind you my post from 11-26-2009:
    EFI-executable "ACPI" has GUID "16d0a23e-c09c-407d-4aa1-ad058fdd0ca1" - so it was the first module which I had planned to patch. But for some reasons it seemed to me that it would be much easier to make a patch in another module. Therefore in "16d0a23e-c09c-407d-4aa1-ad058fdd0ca1" module I needed to change only OEM ID and OEM Table ID.

    As for EFI_ACPI_TABLE_STORAGE_GUID. BIOS must have a code to implement this technology. But if you create ACPI tables dynamically you don't need the code which performs EFI_ACPI_TABLE_STORAGE_GUID processing. I assume ASUS thought in the same way - I haven't found this type of code in ASUS P5Q Deluxe BIOS.
    But it's quite possible that in other UEFI BIOSes we can add SLIC table by changing EFI_ACPI_TABLE_STORAGE file.
     
  13. Yen

    Yen Admin
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    May 6, 2007
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    Where is that code located? Many Insyde UEFI bioses are using EFI_ACPI_TABLE_STORAGE_GUID. Is there a way to extract the code? Is there a corresponding module?

    Btw: -4aa1- or -a14a- is the right GUID from above??? I guess the phyton scripts parsed them wrong.

    Would you please explain how you've implemented the SLIC? Every official bios I've seen before has done it in another way...
     
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  14. middleton

    middleton MDL Novice

    Nov 17, 2009
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    I don't know, I haven't analysed Insyde BIOSes. As stated in documentation: "The ACPI platform driver will load the tables from the firmware". Try to find an efi-module named "ACPI" in Insyde BIOS. The code which performs ACPI table storage file processing should be there.

    You are absolutly right. The proper GUID for EFI-executable "ACPI" is "16d0a23e-c09c-407d-a14a-ad058fdd0ca1".

    I used the official EFI_ACPI_SUPPORT_PROTOCOL.SetAcpiTable(). This method can add ACPI table. I disassembled some efi-executables to see how it works and did all the same.
     
  15. luky

    luky MDL Addicted

    Dec 21, 2008
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