Re: [PATCH v2 07/10] s390x: smp: Use full PSW to bringup new cpu

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On 23.04.20 11:10, Janosch Frank wrote:
> Up to now we ignored the psw mask and only used the psw address when
> bringing up a new cpu. For DAT we need to also load the mask, so let's
> do that.
> 
> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> Reviewed-by: Cornelia Huck <cohuck@xxxxxxxxxx>
> ---
>  lib/s390x/smp.c  | 2 ++
>  s390x/cstart64.S | 3 ++-
>  2 files changed, 4 insertions(+), 1 deletion(-)
> 
> diff --git a/lib/s390x/smp.c b/lib/s390x/smp.c
> index 3f86243..6ef0335 100644
> --- a/lib/s390x/smp.c
> +++ b/lib/s390x/smp.c
> @@ -202,6 +202,8 @@ int smp_cpu_setup(uint16_t addr, struct psw psw)
>  	cpu->stack = (uint64_t *)alloc_pages(2);
>  
>  	/* Start without DAT and any other mask bits. */
> +	cpu->lowcore->sw_int_psw.mask = psw.mask;
> +	cpu->lowcore->sw_int_psw.addr = psw.addr;
>  	cpu->lowcore->sw_int_grs[14] = psw.addr;

Do we still have to set sw_int_grs[14] ?

-- 
Thanks,

David / dhildenb




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