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From: Sandipan Das <sandipan@linux.ibm.com>
To: shuah@kernel.org, linux-kselftest@vger.kernel.org
Cc: linux-arch@vger.kernel.org, fweimer@redhat.com,
	dave.hansen@intel.com, x86@kernel.org, linuxram@us.ibm.com,
	mhocko@kernel.org, linux-mm@kvack.org, mingo@redhat.com,
	aneesh.kumar@linux.ibm.com, bauerman@linux.ibm.com,
	msuchanek@suse.de, mpe@ellerman.id.au,
	linuxppc-dev@lists.ozlabs.org
Subject: [PATCH v16 22/23] selftests/vm/pkeys: Override access right definitions on powerpc
Date: Fri, 17 Jan 2020 18:20:01 +0530
Message-ID: <a1901895804d25cccb478b077a1a6509af93407a.1579265066.git.sandipan@linux.ibm.com> (raw)
In-Reply-To: <cover.1579265066.git.sandipan@linux.ibm.com>
In-Reply-To: <cover.1579265066.git.sandipan@linux.ibm.com>

From: Ram Pai <linuxram@us.ibm.com>

Some platforms hardcode the x86 values for PKEY_DISABLE_ACCESS
and PKEY_DISABLE_WRITE such as those in:
 /usr/include/bits/mman-shared.h.

This overrides the definitions with correct values for powerpc.

cc: Dave Hansen <dave.hansen@intel.com>
cc: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
---
 tools/testing/selftests/vm/pkey-powerpc.h | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/vm/pkey-powerpc.h b/tools/testing/selftests/vm/pkey-powerpc.h
index 7a4d73400338..1753b01882a7 100644
--- a/tools/testing/selftests/vm/pkey-powerpc.h
+++ b/tools/testing/selftests/vm/pkey-powerpc.h
@@ -16,11 +16,13 @@
 #define fpregs			fp_regs
 #define si_pkey_offset		0x20
 
-#ifndef PKEY_DISABLE_ACCESS
+#ifdef PKEY_DISABLE_ACCESS
+#undef PKEY_DISABLE_ACCESS
 # define PKEY_DISABLE_ACCESS	0x3  /* disable read and write */
 #endif
 
-#ifndef PKEY_DISABLE_WRITE
+#ifdef PKEY_DISABLE_WRITE
+#undef PKEY_DISABLE_WRITE
 # define PKEY_DISABLE_WRITE	0x2
 #endif
 
-- 
2.17.1


  parent reply index

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-01-17 12:49 [PATCH v16 00/23] selftests, powerpc, x86: Memory Protection Keys Sandipan Das
2020-01-17 12:49 ` [PATCH v16 01/23] selftests/x86/pkeys: Move selftests to arch-neutral directory Sandipan Das
2020-01-17 12:49 ` [PATCH v16 02/23] selftests/vm: Rename all references to pkru to a generic name Sandipan Das
2020-01-17 12:49 ` [PATCH v16 03/23] selftests/vm: Move generic definitions to header file Sandipan Das
2020-01-17 12:49 ` [PATCH v16 04/23] selftests/vm: Move some definitions to arch-specific header Sandipan Das
2020-01-17 12:49 ` [PATCH v16 05/23] selftests/vm: Make gcc check arguments of sigsafe_printf() Sandipan Das
2020-01-17 12:49 ` [PATCH v16 06/23] selftests/vm: Typecast references to pkey register Sandipan Das
2020-01-17 12:49 ` [PATCH v16 07/23] selftests: vm: pkeys: Add helpers for pkey bits Sandipan Das
2020-01-17 12:49 ` [PATCH v16 08/23] selftests/vm: Fix pkey_disable_clear() Sandipan Das
2020-01-17 12:49 ` [PATCH v16 09/23] selftests/vm/pkeys: Fix assertion in pkey_disable_set/clear() Sandipan Das
2020-01-17 12:49 ` [PATCH v16 10/23] selftests/vm/pkeys: Fix alloc_random_pkey() to make it really random Sandipan Das
2020-01-17 12:49 ` [PATCH v16 11/23] selftests: vm: pkeys: Use the correct huge page size Sandipan Das
2020-01-17 12:49 ` [PATCH v16 12/23] selftests/vm/pkeys: Introduce generic pkey abstractions Sandipan Das
2020-01-17 12:49 ` [PATCH v16 13/23] selftests/vm/pkeys: Introduce powerpc support Sandipan Das
2020-01-17 12:49 ` [PATCH v16 14/23] selftests/vm/pkeys: Fix number of reserved powerpc pkeys Sandipan Das
2020-01-17 12:49 ` [PATCH v16 15/23] selftests/vm/pkeys: Fix assertion in test_pkey_alloc_exhaust() Sandipan Das
2020-01-17 12:49 ` [PATCH v16 16/23] selftests/vm/pkeys: Improve checks to determine pkey support Sandipan Das
2020-01-17 12:49 ` [PATCH v16 17/23] selftests/vm/pkeys: Associate key on a mapped page and detect access violation Sandipan Das
2020-01-17 12:49 ` [PATCH v16 18/23] selftests/vm/pkeys: Associate key on a mapped page and detect write violation Sandipan Das
2020-01-17 12:49 ` [PATCH v16 19/23] selftests/vm/pkeys: Detect write violation on a mapped access-denied-key page Sandipan Das
2020-01-17 12:49 ` [PATCH v16 20/23] selftests/vm/pkeys: Introduce a sub-page allocator Sandipan Das
2020-01-17 12:50 ` [PATCH v16 21/23] selftests/vm/pkeys: Test correct behaviour of pkey-0 Sandipan Das
2020-01-17 12:50 ` Sandipan Das [this message]
2020-01-17 12:50 ` [PATCH v16 23/23] selftests: vm: pkeys: Use the correct page size on powerpc Sandipan Das
2020-01-17 18:02 ` [PATCH v16 00/23] selftests, powerpc, x86: Memory Protection Keys Dave Hansen
2020-01-18  9:24   ` Sandipan Das

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