From: Benjamin Gray <bgray@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: Benjamin Gray <bgray@linux.ibm.com>
Subject: [PATCH v1 6/9] selftests/powerpc/dexcr: Attempt to enable NPHIE in hashchk selftest
Date: Wed, 17 Apr 2024 21:23:22 +1000 [thread overview]
Message-ID: <20240417112325.728010-7-bgray@linux.ibm.com> (raw)
In-Reply-To: <20240417112325.728010-1-bgray@linux.ibm.com>
Now that a process can control its DEXCR to some extent, make the
hashchk tests more reliable by explicitly setting the local and onexec
NPHIE aspect.
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
---
tools/testing/selftests/powerpc/dexcr/hashchk_test.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/powerpc/dexcr/hashchk_test.c b/tools/testing/selftests/powerpc/dexcr/hashchk_test.c
index 7d5658c9ebe4..645224bdc142 100644
--- a/tools/testing/selftests/powerpc/dexcr/hashchk_test.c
+++ b/tools/testing/selftests/powerpc/dexcr/hashchk_test.c
@@ -21,8 +21,14 @@
static int require_nphie(void)
{
SKIP_IF_MSG(!dexcr_exists(), "DEXCR not supported");
+
+ pr_set_dexcr(PR_PPC_DEXCR_NPHIE, PR_PPC_DEXCR_CTRL_SET | PR_PPC_DEXCR_CTRL_SET_ONEXEC);
+
+ if (get_dexcr(EFFECTIVE) & DEXCR_PR_NPHIE)
+ return 0;
+
SKIP_IF_MSG(!(get_dexcr(EFFECTIVE) & DEXCR_PR_NPHIE),
- "DEXCR[NPHIE] not enabled");
+ "Failed to enable DEXCR[NPHIE]");
return 0;
}
--
2.44.0
next prev parent reply other threads:[~2024-04-17 11:28 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-17 11:23 [PATCH v1 0/9] Add dynamic DEXCR support Benjamin Gray
2024-04-17 11:23 ` [PATCH v1 1/9] selftests/powerpc/dexcr: Add -no-pie to hashchk tests Benjamin Gray
2024-05-07 7:44 ` Andrew Donnellan
2024-04-17 11:23 ` [PATCH v1 2/9] powerpc/dexcr: Track the DEXCR per-process Benjamin Gray
2024-04-17 11:23 ` [PATCH v1 3/9] powerpc/dexcr: Reset DEXCR value across exec Benjamin Gray
2024-04-17 11:23 ` [PATCH v1 4/9] powerpc/dexcr: Add DEXCR prctl interface Benjamin Gray
2024-04-17 11:23 ` [PATCH v1 5/9] selftests/powerpc/dexcr: Add DEXCR prctl interface test Benjamin Gray
2024-04-17 11:23 ` Benjamin Gray [this message]
2024-04-17 11:23 ` [PATCH v1 7/9] selftests/powerpc/dexcr: Add DEXCR config details to lsdexcr Benjamin Gray
2024-04-17 11:23 ` [PATCH v1 8/9] selftests/powerpc/dexcr: Add chdexcr utility Benjamin Gray
2024-04-17 11:23 ` [PATCH v1 9/9] Documentation: Document PowerPC kernel dynamic DEXCR interface Benjamin Gray
2024-05-08 13:39 ` [PATCH v1 0/9] Add dynamic DEXCR support Michael Ellerman
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