[PATCH] powerpc/prom_init: Undo relocation before entering secure mode

[Thiago Jung Bauermann]

Thiago Jung Bauermann <bauerman at linux.ibm.com> writes:

> The ultravisor will do an integrity check of the kernel image but we
> relocated it so the check will fail. Restore the original image by
> relocating it back to the kernel virtual base address.
>
> This works because during build vmlinux is linked with an expected virtual
> runtime address of KERNELBASE.
>
> Fixes: 6a9c930bd775 ("powerpc/prom_init: Add the ESM call to prom_init")
> Signed-off-by: Thiago Jung Bauermann <bauerman at linux.ibm.com>

I meant to put a Suggested-by: Paul Mackerras <paulus at samba.org>

Sorry. Will add it if there's a v2.

-- 
Thiago Jung Bauermann
IBM Linux Technology Center