Re: [PATCH v4 12/24] x86/resctrl: Make resctrl_arch_rmid_read() retry when it is interrupted

From: Peter Newman
Date: Thu Jun 08 2023 - 04:54:17 EST


Hi James,

On Thu, May 25, 2023 at 8:03 PM James Morse <james.morse@xxxxxxx> wrote:
>
> resctrl_arch_rmid_read() could be called by resctrl in process context,
> and then called by the PMU driver from irq context on the same CPU.

Will there be x86 PMU changes to do this or is this only ARM? I just
want to make sure the x86 resctrl_arch_rmid_read() changes are
actually needed.

Thanks!
-Peter