Re: [Patch v2 12/24] perf/x86/intel: Allocate arch-PEBS buffer and initialize PEBS_BASE MSR

From: Peter Zijlstra
Date: Tue Feb 25 2025 - 06:26:07 EST


On Tue, Feb 18, 2025 at 03:28:06PM +0000, Dapeng Mi wrote:
> Arch-PEBS introduces a new MSR IA32_PEBS_BASE to store the arch-PEBS
> buffer physical address. This patch allocates arch-PEBS buffer and then
> initialize IA32_PEBS_BASE MSR with the buffer physical address.

Just to clarify, parts with ARCH PEBS will not have BTS and thus not
have DS?