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author | Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com> | 2025-01-27 16:31:55 +0100 |
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committer | Ingo Molnar <mingo@kernel.org> | 2025-02-22 13:17:07 +0100 |
commit | ec8f5b4659b4044db55e1f7d947703dd4948626c (patch) | |
tree | d7e94201e2dfda796639784b9be02ed1a81c066c /tools/perf/scripts/python/export-to-postgresql.py | |
parent | 7ffb791423c7c518269a9aad35039ef824a40adb (diff) |
selftests/lam: Move cpu_has_la57() to use cpuinfo flag
In current form cpu_has_la57() reports platform's support for LA57
through reading the output of cpuid. A much more useful information is
whether 5-level paging is actually enabled on the running system.
Check whether 5-level paging is enabled by trying to map a page in the
high linear address space.
Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Link: https://lore.kernel.org/r/8b1ca51b13e6d94b5a42b6930d81b692cbb0bcbb.1737990375.git.maciej.wieczor-retman@intel.com
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions