Re: [PATCH 4/6] s390: add system call to run tasks with modified branch prediction

[Florian Weimer <fweimer@xxxxxxxxxx>]

On 01/17/2018 10:48 AM, Martin Schwidefsky wrote:
>          rc = syscall(__NR_s390_modify_bp);
>          if (rc) {
>                  perror("s390_modify_bp");
>                  exit(EXIT_FAILURE);
>          }

Isn't this traditionally done through personality or prctl?

This looks like something other architectures may want as well.

Thanks,
Florian
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