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| author | Dave Jiang <dave.jiang@intel.com> | 2022-11-30 12:23:07 -0700 |
|---|---|---|
| committer | Dan Williams <dan.j.williams@intel.com> | 2022-12-01 12:42:35 -0800 |
| commit | 15a8348707ffd2a37516db9bede88cc0bb467e0b (patch) | |
| tree | 5c442b67c66518f03d389316b09c5f3090a336e8 /kernel/watch_queue.c | |
| parent | 452996fa079b1a8751a02ac04c54b1d69f512249 (diff) | |
| download | linux-15a8348707ffd2a37516db9bede88cc0bb467e0b.tar.bz2 | |
libnvdimm: Introduce CONFIG_NVDIMM_SECURITY_TEST flag
nfit_test overrode the security_show() sysfs attribute function in nvdimm
dimm_devs in order to allow testing of security unlock. With the
introduction of CXL security commands, the trick to override
security_show() becomes significantly more complicated. By introdcing a
security flag CONFIG_NVDIMM_SECURITY_TEST, libnvdimm can just toggle the
check via a compile option. In addition the original override can can be
removed from tools/testing/nvdimm/.
The flag will also be used to bypass cpu_cache_invalidate_memregion() when
set in a different commit. This allows testing on QEMU with nfit_test or
cxl_test since cpu_cache_has_invalidate_memregion() checks whether
X86_FEATURE_HYPERVISOR cpu feature flag is set on x86.
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Link: https://lore.kernel.org/r/166983618758.2734609.18031639517065867138.stgit@djiang5-desk3.ch.intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'kernel/watch_queue.c')
0 files changed, 0 insertions, 0 deletions