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authorDave Hansen <dave.hansen@linux.intel.com>2016-07-29 09:30:18 -0700
committerThomas Gleixner <tglx@linutronix.de>2016-09-09 13:02:27 +0200
commita60f7b69d92c0142c80a30d669a76b617b7f6879 (patch)
tree3a01d8bd0a6028a0ba4325a39845cbc439c1e128
parentf9afc6197e9bba1e2e62e262704f661810cc8bba (diff)
generic syscalls: Wire up memory protection keys syscalls
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-arch@vger.kernel.org Cc: Dave Hansen <dave@sr71.net> Cc: mgorman@techsingularity.net Cc: linux-api@vger.kernel.org Cc: linux-mm@kvack.org Cc: luto@kernel.org Cc: akpm@linux-foundation.org Cc: torvalds@linux-foundation.org Link: http://lkml.kernel.org/r/20160729163018.505A6875@viggo.jf.intel.com Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
-rw-r--r--include/linux/syscalls.h8
-rw-r--r--include/uapi/asm-generic/unistd.h12
2 files changed, 19 insertions, 1 deletions
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index d02239022bd0..0d7abb8b7315 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -898,4 +898,12 @@ asmlinkage long sys_copy_file_range(int fd_in, loff_t __user *off_in,
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 --git a/include/uapi/asm-generic/unistd.h b/include/uapi/asm-generic/unistd.h
index a26415b5151c..dbfee7e86ba6 100644
--- a/include/uapi/asm-generic/unistd.h
+++ b/include/uapi/asm-generic/unistd.h
@@ -724,9 +724,19 @@ __SYSCALL(__NR_copy_file_range, sys_copy_file_range)
__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 291
/*
* All syscalls below here should go away really,