[PATCH v2 0/6] perf kvm: A small update in the default arch event

From: Namhyung Kim

Date: Tue Jun 23 2026 - 15:15:22 EST


Hello,

Ian said there's an issue in the perf kvm record command line option parsing.
This is my attempt to address the issue, simplify the code and fix memory leaks.

v2 changes)
* handle kvm top subcommand (Sashiko)
* handle other arch/condition for the default events (Sashiko)
* add <stdlib.h> for musl compatibility (Sashiko)
* fix some memory leaks

Thanks,
Namhyung


Namhyung Kim (6):
perf kvm: Factor out kvm_need_default_arch_event()
perf kvm: Check kvm_need_default_arch_event() early
perf kvm: Kill STRDUP_FAIL_EXIT()
perf kvm: Do not copy filename string
perf kvm: Fix a memory leak in the usage string
perf test: Simplify perf kvm record/report tests

tools/perf/builtin-kvm.c | 105 ++++++++----------
tools/perf/tests/shell/kvm.sh | 8 +-
.../util/kvm-stat-arch/kvm-stat-powerpc.c | 31 +-----
tools/perf/util/kvm-stat-arch/kvm-stat-x86.c | 37 +-----
tools/perf/util/kvm-stat.c | 41 +++++++
tools/perf/util/kvm-stat.h | 18 ++-
6 files changed, 109 insertions(+), 131 deletions(-)

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2.55.0.rc0.799.gd6f94ed593-goog