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payloads/external/tianocore: Add build argument for 4G Decode

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Add Kconfig option TIANOCORE_ABOVE_4G_DECODE to pass build option to
edk2 to enable or disable "Above 4G Decode". Disabling allows certain Linux
distributions to boot such as Qubes, Zorin and Proxmox.

Requires commit `2f6d4cbcc7fa49462e607baed7626524ccd59ad3` that is
present in the `uefipayload_202107` branch of MrChromebox's edk2 
repository.

Signed-off-by: Sean Rhodes <sean@starlabs.systems>
Change-Id: Ia3b1d15196c0ec611431af29031682fea626d19d
Reviewed-on: https://review.coreboot.org/c/coreboot/+/56223
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
This commit is contained in:
Sean Rhodes
2021-07-12 19:35:51 +01:00
committed by Nico Huber
parent 8b7600058f
commit 766e481adb
3 changed files with 19 additions and 1 deletions
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11
payloads/external/tianocore/Kconfig vendored
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@@ -82,6 +82,17 @@ config TIANOCORE_BOOTSPLASH_FILE
If an absolute path is not given, the path will assumed to be
relative to the coreboot root directory.
config TIANOCORE_ABOVE_4G_MEMORY
bool "Enable above 4G memory"
default n
help
Select this option to enable Above 4G Decode. This will allow the
payload to use all of the memory, rather than an maximum of 4G.
Disabling this option, which will reserve memory above 4G, is
useful for bootloaders that are not fully 64-bit aware such as
Qubes R4.0.4 bootloader.
endif
config TIANOCORE_BOOT_TIMEOUT