On Fri, Apr 24, 2020 at 08:01:32AM +0200, Heinrich Schuchardt wrote:
On 4/23/20 10:05 AM, Bin Meng wrote:
Hi Simon,
On Mon, Apr 6, 2020 at 7:22 AM Simon Glass sjg@chromium.org wrote:
This series creates a new 64-bit 'coreboot64' build which can be launched from coreboot. It uses SPL to effect the jump to 64-bit mode.
Adding 64-bit U-Boot as a coreboot payload is nice.
This was done in an attempt to get the Ubuntu FirmwareTestSuite[1]
Yet I fail to understand why adding 64-bit U-Boot as the coreboot payload could help running the Ubuntu Firmware Test Suite. Does 32-bit U-Boot as the coreboot payload not work in this case?
coreboot_defconfig has CONFIG_EFI_LOADER=y so the firmware test suite should work fine if you are running a 32 bit OS.
Of cause calling a 32bit UEFI from a 64bit OS is expected fail due to a different ABI.
I'm wonder how Linux (64-bit) kernel with EFI stub enables boots on EFI 32-bit environment?
working. Unfortunately the latest version shows a splash screen and hangs, perhaps due to some missing EFI support.