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linux-yocto/tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64
James Clark 9440ebdc33 perf test arm64: Add attr tests for new VG register 
Ensure that the availability of the VG register behaves as expected
depending on the kernel version and SVE support.

Signed-off-by: James Clark <james.clark@arm.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20221213114739.2312862-5-james.clark@arm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-12-14 11:24:32 -03:00

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Test that asking for VG always fails on old kernels because it was

added in 6.1. This applies to systems that either support or don't

support SVE.

[config] command = record args = --no-bpf-event --user-regs=vg kill >/dev/null 2>&1 ret = 129 test_ret = true arch = aarch64 kernel_until = 6.1