linux.git/tools/testing/selftests/powerpc/security/entry_flush.c, branch v5.12 Linux kernel source tree selftests/powerpc: refactor entry and rfi_flush tests 2020-11-19T12:47:23+00:00 Daniel Axtens dja@axtens.net 2020-11-17T05:59:15+00:00 0d239f3b03efc78fb5b290aff6c747fecd3b98cb For simplicity in backporting, the original entry_flush test contained a lot of duplicated code from the rfi_flush test. De-duplicate that code. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
For simplicity in backporting, the original entry_flush test contained
a lot of duplicated code from the rfi_flush test. De-duplicate that code.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
selftests/powerpc: entry flush test 2020-11-19T12:47:20+00:00 Daniel Axtens dja@axtens.net 2020-11-17T05:59:14+00:00 89a83a0c69c81a25ce91002b90ca27ed86132a0a Add a test modelled on the RFI flush test which counts the number of L1D misses doing a simple syscall with the entry flush on and off. For simplicity of backporting, this test duplicates a lot of code from rfi_flush. We clean that up in the next patch. Signed-off-by: Daniel Axtens <dja@axtens.net> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> 
Add a test modelled on the RFI flush test which counts the number
of L1D misses doing a simple syscall with the entry flush on and off.

For simplicity of backporting, this test duplicates a lot of code from
rfi_flush. We clean that up in the next patch.

Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>