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x86: Add a reference to README.efi
UEFI is commonly used on x86. Add a reference to U-Boot's support for this in the x86 README. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
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@ -1039,10 +1039,21 @@ command from the OS.
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For other platform boards, ACPI support status can be checked by examining their
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board defconfig files to see if CONFIG_GENERATE_ACPI_TABLE is set to y.
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EFI Support
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-----------
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U-Boot supports booting as a 32-bit or 64-bit EFI payload, e.g. with UEFI.
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This is enabled with CONFIG_EFI_STUB. U-Boot can also run as an EFI
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application, with CONFIG_EFI_APP. The CONFIG_EFI_LOADER option, where U-Booot
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provides an EFI environment to the kernel (i.e. replaces UEFI completely but
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provides the same EFI run-time services) is not currently supported on x86.
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See README.efi for details of EFI support in U-Boot.
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TODO List
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---------
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- Audio
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- Chrome OS verified boot
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- Support for CONFIG_EFI_LOADER
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References
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----------
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