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@xxxxxxx> --- .../attr/test-record-user-regs-no-sve-aarch64 | 9 +++++++++ .../attr/test-record-user-regs-old-sve-aarch64 | 10 ++++++++++ .../tests/attr/test-record-user-regs-sve-aarch64 | 14 ++++++++++++++ 3 files changed, 33 insertions(+) create mode 100644 tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64 create mode 100644 tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64 create mode 100644 tools/perf/tests/attr/test-record-user-regs-sve-aarch64 diff --git a/tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64 b/tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64 new file mode 100644 index 000000000000..fbb065842880 --- /dev/null +++ b/tools/perf/tests/attr/test-record-user-regs-no-sve-aarch64 @@ -0,0 +1,9 @@ +# Test that asking for VG fails if the system doesn't support SVE. This +# applies both before and after the feature was added in 6.1 +[config] +command = record +args = --no-bpf-event --user-regs=vg kill >/dev/null 2>&1 +ret = 129 +test_ret = true +arch = aarch64 +auxv = auxv["AT_HWCAP"] & 0x200000 == 0 diff --git a/tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64 b/tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64 new file mode 100644 index 000000000000..15ebfc3418e3 --- /dev/null +++ b/tools/perf/tests/attr/test-record-user-regs-old-sve-aarch64 @@ -0,0 +1,10 @@ +# 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 diff --git a/tools/perf/tests/attr/test-record-user-regs-sve-aarch64 b/tools/perf/tests/attr/test-record-user-regs-sve-aarch64 new file mode 100644 index 000000000000..c598c803221d --- /dev/null +++ b/tools/perf/tests/attr/test-record-user-regs-sve-aarch64 @@ -0,0 +1,14 @@ +# Test that asking for VG works if the system has SVE and after the +# feature was added in 6.1 +[config] +command = record +args = --no-bpf-event --user-regs=vg kill >/dev/null 2>&1 +ret = 1 +test_ret = true +arch = aarch64 +auxv = auxv["AT_HWCAP"] & 0x200000 == 0x200000 +kernel_since = 6.1 + +[event:base-record] +sample_type=4359 +sample_regs_user=70368744177664 -- 2.28.0
