Re: [RFC PATCH] perf/amd/ibs: Report physical address for IBS fetch samples

From: Ravi Bangoria

Date: Tue Aug 18 2026 - 01:00:37 EST


On 17-Aug-26 1:03 PM, Huang Shijie wrote:
> The IBS Fetch sampling does not report the physical address of the
> fetched instruction even when PERF_SAMPLE_PHYS_ADDR is requested,
> while IBS Op sampling does.
>
> This patch reports physical address for IBS fetch samples which can be
> used for profiling the running program.

PERF_SAMPLE_PHYS_ADDR is meant to capture the _data_ physical address, which
IBS Fetch doesn't provide. So, repurposing semantics of PERF_SAMPLE_PHYS_ADDR
for IBS Fetch seems reasonable.

Reviewed-by: Ravi Bangoria <ravi.bangoria@xxxxxxx>

Thanks,
Ravi