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

David Hildenbrand
2019-08-21T13:23:40Z

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