Re: [kvm-unit-tests PATCH 1/6] s390x: snippets: asm: Add a macro to write an exception PSW

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Quoting Janosch Frank (2022-07-29 10:26:28)
[...]
> diff --git a/s390x/snippets/asm/snippet-pv-diag-500.S b/s390x/snippets/asm/snippet-pv-diag-500.S
> index 8dd66bd9..f4d75388 100644
> --- a/s390x/snippets/asm/snippet-pv-diag-500.S
> +++ b/s390x/snippets/asm/snippet-pv-diag-500.S
> @@ -8,6 +8,7 @@
>   *  Janosch Frank <frankja@xxxxxxxxxxxxx>
>   */
>  #include <asm/asm-offsets.h>
> +#include "macros.S"
>  .section .text
>  
>  /* Clean and pre-load registers that are used for diag 500 */
> @@ -21,10 +22,7 @@ lghi %r3, 3
>  lghi   %r4, 4
>  
>  /* Let's jump to the next label on a PGM */
> -xgr    %r5, %r5
> -stg    %r5, GEN_LC_PGM_NEW_PSW

So previously the PSW mask was zero and hence we had 24-bit addressing, no? Now, we have bits 31 and 32 one and hence 64 bit addressing.

I guess 24-bit addressing is not appropriate here (or at least doesn't matter too much), so I guess this is intended, isn't it?




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