From 766e481adb2091e45a016159cc97d72898606036 Mon Sep 17 00:00:00 2001 From: Sean Rhodes Date: Mon, 12 Jul 2021 19:35:51 +0100 Subject: payloads/external/tianocore: Add build argument for 4G Decode 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 Change-Id: Ia3b1d15196c0ec611431af29031682fea626d19d Reviewed-on: https://review.coreboot.org/c/coreboot/+/56223 Tested-by: build bot (Jenkins) Reviewed-by: Matt DeVillier --- payloads/external/tianocore/Kconfig | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'payloads/external/tianocore/Kconfig') diff --git a/payloads/external/tianocore/Kconfig b/payloads/external/tianocore/Kconfig index cb3ff5dca5..5349f25c09 100644 --- a/payloads/external/tianocore/Kconfig +++ b/payloads/external/tianocore/Kconfig @@ -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 -- cgit v1.2.3