Re: [kvm-unit-tests PATCH v2 1/4] s390x: Support PSW restart boot

[David Hildenbrand <david@redhat.com>]

On 21.08.19 12:47, Janosch Frank wrote:
> Add a boot PSW to PSW restart new, so we can also boot via a PSW
> restart.
> 
> Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
> Reviewed-by: Thomas Huth <thuth@redhat.com>
> ---
>  s390x/flat.lds | 14 +++++++++-----
>  1 file changed, 9 insertions(+), 5 deletions(-)
> 
> diff --git a/s390x/flat.lds b/s390x/flat.lds
> index 403d967..86dffac 100644
> --- a/s390x/flat.lds
> +++ b/s390x/flat.lds
> @@ -1,14 +1,18 @@
>  SECTIONS
>  {
> -	/*
> -	 * Initial short psw for disk boot, with 31 bit addressing for
> -	 * non z/Arch environment compatibility and the instruction
> -	 * address 0x10000 (cstart64.S .init).
> -	 */
>  	.lowcore : {
> +		/*
> +		 * Initial short psw for disk boot, with 31 bit addressing for
> +		 * non z/Arch environment compatibility and the instruction
> +		 * address 0x10000 (cstart64.S .init).
> +		 */
>  		. = 0;
>  		 LONG(0x00080000)
>  		 LONG(0x80010000)
> +		 /* Restart new PSW for booting via PSW restart. */
> +		 . = 0x1a0;
> +		 QUAD(0x0000000180000000)
> +		 QUAD(0x0000000000010000)
>  	}
>  	. = 0x10000;
>  	.text : {
> 

Reviewed-by: David Hildenbrand <david@redhat.com>

-- 

Thanks,

David / dhildenb