git.baikalelectronics.ru Git - kernel.git/commit

author	Sandipan Das <sandipan@linux.ibm.com>
	Thu, 4 Jun 2020 12:56:08 +0000 (18:26 +0530)
committer	Michael Ellerman <mpe@ellerman.id.au>
	Tue, 30 Jun 2020 04:37:47 +0000 (14:37 +1000)
commit	a0424743dbede6b66695c71f6f1a7ef5b3047f7f
tree	19669711fd35c984590e4e6cb434cdbf11474ff8	tree \| snapshot
parent	c4323b677a080e7deb362336b512b65299387cf7	commit \| diff

selftests/powerpc: Fix pkey access right updates

The Power ISA mandates that all writes to the Authority
Mask Register (AMR) must always be preceded as well as
succeeded by a context synchronizing instruction.

This makes sure that the tests follow this requirement
when attempting to update a pkey's access rights.

Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200604125610.649668-2-sandipan@linux.ibm.com

tools/testing/selftests/powerpc/include/reg.h		diff \| blob \| history
tools/testing/selftests/powerpc/ptrace/core-pkey.c		diff \| blob \| history
tools/testing/selftests/powerpc/ptrace/ptrace-pkey.c		diff \| blob \| history