On Tue, 23 Mar 2021 12:06:28 +0000, Suzuki K Poulose wrote: > This series enables future IP trace features Embedded Trace Extension > (ETE) and Trace Buffer Extension (TRBE). This series applies on > v5.12-rc4 + some patches queued. A standalone tree is also available here [0]. > The queued patches (almost there) are included in this posting for > the sake of constructing a tree from the posting. > > ETE is the PE (CPU) trace unit for CPUs, implementing future > architecture extensions. ETE overlaps with the ETMv4 architecture, with > additions to support the newer architecture features and some restrictions > on the supported features w.r.t ETMv4. The ETE support is added by extending > the ETMv4 driver to recognise the ETE and handle the features as exposed by > the TRCIDRx registers. ETE only supports system instructions access from the > host CPU. The ETE could be integrated with a TRBE (see below), or with > the legacy CoreSight trace bus (e.g, ETRs). Thus the ETE follows same > firmware description as the ETMs and requires a node per instance. > > [...]
Applied to fixes, thanks! [02/19] kvm: arm64: Disable guest access to trace filter controls commit: eed31b2332ed02ffb368eba7654350746185e6e7 Cheers, M. -- Without deviation from the norm, progress is not possible.