selftests/bpf: Skip the second half of get_branch_snapshot in vm

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VMs running on upstream 5.12+ kernel support LBR. However,
bpf_get_branch_snapshot couldn't stop the LBR before too many entries
are flushed. Skip the hit/waste test for VMs before we find a proper fix
for LBR in VM.

Fixes: 025bd7c753 ("selftests/bpf: Add test for bpf_get_branch_snapshot")
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20211007050231.728496-1-songliubraving@fb.com

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Song Liu 2021-10-06 22:02:31 -07:00 • committed by Andrii Nakryiko

parent 0eb4ef88c5

commit aa67fdb464

1 changed files with 34 additions and 0 deletions

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tools/testing/selftests/bpf/prog_tests/get_branch_snapshot.c

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