Re: [Patch v6 10/22] perf/x86: Enable XMM Register Sampling for Non-PEBS Events

From: Chang S. Bae

Date: Tue Feb 24 2026 - 14:13:59 EST


On 2/23/2026 11:11 PM, Mi, Dapeng wrote:

intent of this whole function is to sample the required SIMD and APX eGPRs
registers by leveraging xsaves instruction in a NMI handler context. All
the SIMD and eGPRs registers are collectively called "extended registers"
here. Not sure if the "extended registers" is a good word, please suggest
if there is a better one.

They are sometimes referred as 'xregs' in short. Also this is a local function. Following the do_something() style, perhaps just update_xregs_state() or update_perf_xregs()