[coreboot] Re: Placing coreboot in system memory

[Julian Stecklina]

Hi Nico,

On Wed, 2021-11-10 at 10:54 +0100, Nico Huber wrote:
> > AIUI, this "hacky way" should be taken, so cbfs_load_and_decompress()
> > would never be called. First, I'd check if the path is tried, i.e.
> > check the .config file if these are set to `y`:
> > CONFIG_NO_XIP_EARLY_STAGES
>
> Sorry, this one is inverted in the condition, it should be set to no /
> unset, of course.
>
> Nico
> > CONFIG_BOOT_DEVICE_MEMORY_MAPPED

Both of thise are disabled for qemu platforms (which we use). The Qemu platforms
explicitly select BOOT_DEVICE_NOT_SPI_FLASH which in turn disables
CONFIG_BOOT_DEVICE_MEMORY_MAPPED.
> > If they are, it's still possible that something fails and it falls back
> > to cbfs_load_and_decompress(). In that case, further debugging might be
> > needed.

Julian