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From: Dave Hansen <dave@sr71.net>
To: linux-kernel@vger.kernel.org
Cc: x86@kernel.org, linux-api@vger.kernel.org,
	linux-arch@vger.kernel.org, linux-mm@kvack.org,
	torvalds@linux-foundation.org, akpm@linux-foundation.org,
	Dave Hansen <dave@sr71.net>,
	dave.hansen@linux.intel.com, arnd@arndb.de,
	mgorman@techsingularity.net, hughd@google.com,
	viro@zeniv.linux.org.uk
Subject: [PATCH 7/9] generic syscalls: wire up memory protection keys syscalls
Date: Thu, 07 Jul 2016 05:47:30 -0700	[thread overview]
Message-ID: <20160707124730.22CBDCE5@viggo.jf.intel.com> (raw)
In-Reply-To: <20160707124719.3F04C882@viggo.jf.intel.com>


From: Dave Hansen <dave.hansen@linux.intel.com>

These new syscalls are implemented as generic code, so enable
them for architectures like arm64 which use the generic syscall
table.

According to Arnd:

	Even if the support is x86 specific for the forseeable
	future, it may be good to reserve the number just in
	case.  The other architecture specific syscall lists are
	usually left to the individual arch maintainers, most a
	lot of the newer architectures share this table.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: linux-api@vger.kernel.org
Cc: linux-arch@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: x86@kernel.org
Cc: torvalds@linux-foundation.org
Cc: akpm@linux-foundation.org
Cc: mgorman@techsingularity.net
Cc: hughd@google.com
Cc: viro@zeniv.linux.org.uk
---

 b/include/linux/syscalls.h          |    8 ++++++++
 b/include/uapi/asm-generic/unistd.h |   12 +++++++++++-
 2 files changed, 19 insertions(+), 1 deletion(-)

diff -puN include/linux/syscalls.h~pkeys-119-syscalls-generic include/linux/syscalls.h
--- a/include/linux/syscalls.h~pkeys-119-syscalls-generic	2016-07-07 05:47:02.757891034 -0700
+++ b/include/linux/syscalls.h	2016-07-07 05:47:02.766891442 -0700
@@ -898,4 +898,12 @@ asmlinkage long sys_copy_file_range(int
 
 asmlinkage long sys_mlock2(unsigned long start, size_t len, int flags);
 
+asmlinkage long sys_pkey_mprotect(unsigned long start, size_t len,
+				  unsigned long prot, int pkey);
+asmlinkage long sys_pkey_alloc(unsigned long flags, unsigned long init_val);
+asmlinkage long sys_pkey_free(int pkey);
+asmlinkage long sys_pkey_get(int pkey, unsigned long flags);
+asmlinkage long sys_pkey_set(int pkey, unsigned long access_rights,
+			     unsigned long flags);
+
 #endif
diff -puN include/uapi/asm-generic/unistd.h~pkeys-119-syscalls-generic include/uapi/asm-generic/unistd.h
--- a/include/uapi/asm-generic/unistd.h~pkeys-119-syscalls-generic	2016-07-07 05:47:02.761891215 -0700
+++ b/include/uapi/asm-generic/unistd.h	2016-07-07 05:47:02.768891533 -0700
@@ -724,9 +724,19 @@ __SYSCALL(__NR_copy_file_range, sys_copy
 __SC_COMP(__NR_preadv2, sys_preadv2, compat_sys_preadv2)
 #define __NR_pwritev2 287
 __SC_COMP(__NR_pwritev2, sys_pwritev2, compat_sys_pwritev2)
+#define __NR_pkey_mprotect 288
+__SYSCALL(__NR_pkey_mprotect, sys_pkey_mprotect)
+#define __NR_pkey_alloc 289
+__SYSCALL(__NR_pkey_alloc,    sys_pkey_alloc)
+#define __NR_pkey_free 290
+__SYSCALL(__NR_pkey_free,     sys_pkey_free)
+#define __NR_pkey_get 291
+__SYSCALL(__NR_pkey_get,      sys_pkey_get)
+#define __NR_pkey_set 292
+__SYSCALL(__NR_pkey_set,      sys_pkey_set)
 
 #undef __NR_syscalls
-#define __NR_syscalls 288
+#define __NR_syscalls 293
 
 /*
  * All syscalls below here should go away really,
_

  parent reply	other threads:[~2016-07-07 12:48 UTC|newest]

Thread overview: 48+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-07 12:47 [PATCH 0/9] [REVIEW-REQUEST] [v4] System Calls for Memory Protection Keys Dave Hansen
2016-07-07 12:47 ` [PATCH 1/9] x86, pkeys: add fault handling for PF_PK page fault bit Dave Hansen
2016-07-07 14:40   ` Mel Gorman
2016-07-07 15:42     ` Dave Hansen
2016-07-07 12:47 ` [PATCH 2/9] mm: implement new pkey_mprotect() system call Dave Hansen
2016-07-07 14:40   ` Mel Gorman
2016-07-07 16:51     ` Dave Hansen
2016-07-08 10:15       ` Mel Gorman
2016-07-07 12:47 ` [PATCH 3/9] x86, pkeys: make mprotect_key() mask off additional vm_flags Dave Hansen
2016-07-07 12:47 ` [PATCH 4/9] x86: wire up mprotect_key() system call Dave Hansen
2016-07-07 12:47 ` [PATCH 5/9] x86, pkeys: allocation/free syscalls Dave Hansen
2016-07-07 14:40   ` Mel Gorman
2016-07-07 15:38     ` Dave Hansen
2016-07-07 12:47 ` [PATCH 6/9] x86, pkeys: add pkey set/get syscalls Dave Hansen
2016-07-07 14:45   ` Mel Gorman
2016-07-07 17:33     ` Dave Hansen
2016-07-08  7:18       ` Ingo Molnar
2016-07-08 16:32         ` Dave Hansen
2016-07-09  8:37           ` Ingo Molnar
2016-07-11  4:25             ` Andy Lutomirski
2016-07-11  7:35               ` Ingo Molnar
2016-07-11 14:28                 ` Dave Hansen
2016-07-12  7:13                   ` Ingo Molnar
2016-07-12 15:39                     ` Dave Hansen
2016-07-11 14:50                 ` Andy Lutomirski
2016-07-11 14:34               ` Dave Hansen
2016-07-11 14:45                 ` Andy Lutomirski
2016-07-11 15:48                   ` Dave Hansen
2016-07-12 16:32                     ` Andy Lutomirski
2016-07-12 17:12                       ` Dave Hansen
2016-07-12 22:55                         ` Andy Lutomirski
2016-07-13  7:56                       ` Ingo Molnar
2016-07-13 18:43                         ` Andy Lutomirski
2016-07-14  8:07                           ` Ingo Molnar
2016-07-18  4:43                             ` Andy Lutomirski
2016-07-18  9:56                               ` Ingo Molnar
2016-07-18 18:02             ` Dave Hansen
2016-07-18 20:12             ` Dave Hansen
2016-07-08 19:26         ` Dave Hansen
2016-07-08 10:22       ` Mel Gorman
2016-07-07 12:47 ` Dave Hansen [this message]
2016-07-07 12:47 ` [PATCH 8/9] pkeys: add details of system call use to Documentation/ Dave Hansen
2016-07-07 12:47 ` [PATCH 9/9] x86, pkeys: add self-tests Dave Hansen
2016-07-07 14:47 ` [PATCH 0/9] [REVIEW-REQUEST] [v4] System Calls for Memory Protection Keys Mel Gorman
2016-07-08 18:38 ` Hugh Dickins
  -- strict thread matches above, loose matches on Subject: below --
2016-06-09  0:01 [PATCH 0/9] [v3] " Dave Hansen
2016-06-09  0:01 ` [PATCH 7/9] generic syscalls: wire up memory protection keys syscalls Dave Hansen
2016-06-07 20:47 [PATCH 0/9] [v2] System Calls for Memory Protection Keys Dave Hansen
2016-06-07 20:47 ` [PATCH 7/9] generic syscalls: wire up memory protection keys syscalls Dave Hansen
2016-06-07 21:25   ` Arnd Bergmann

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