On 2018-08-24 13:50, David Hildenbrand wrote:
> User the provided helper functions now.
>
> Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
> ---
> lib/s390x/asm/interrupt.h | 12 ++----------
> 1 file changed, 2 insertions(+), 10 deletions(-)
>
> diff --git a/lib/s390x/asm/interrupt.h b/lib/s390x/asm/interrupt.h
> index b3abd63..013709f 100644
> --- a/lib/s390x/asm/interrupt.h
> +++ b/lib/s390x/asm/interrupt.h
> @@ -23,21 +23,13 @@ void check_pgm_int_code(uint16_t code);
> /* Activate low-address protection */
> static inline void low_prot_enable(void)
> {
> - uint64_t cr0;
> -
> - asm volatile (" stctg %%c0,%%c0,%0 " : : "Q"(cr0) : "memory");
> - cr0 |= 1ULL << (63-35);
> - asm volatile (" lctlg %%c0,%%c0,%0 " : : "Q"(cr0));
> + ctl_set_bit(0, 63 - 35);
> }
>
> /* Disable low-address protection */
> static inline void low_prot_disable(void)
> {
> - uint64_t cr0;
> -
> - asm volatile (" stctg %%c0,%%c0,%0 " : : "Q"(cr0) : "memory");
> - cr0 &= ~(1ULL << (63-35));
> - asm volatile (" lctlg %%c0,%%c0,%0 " : : "Q"(cr0));
> + ctl_clear_bit(0, 63 - 35);
> }
>
> #endif
Reviewed-by: Thomas Huth <thuth@xxxxxxxxxx>
