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Groups > linux.kernel > #1410373

[PATCH 4/8] x86: wire up mprotect_key() system call

From Dave Hansen <dave@sr71.net>
Newsgroups linux.kernel
Subject [PATCH 4/8] x86: wire up mprotect_key() system call
Date 2016-05-31 17:30 +0200
Message-ID <rETMd-4rJ-15@gated-at.bofh.it> (permalink)
References <rETMd-4rJ-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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

This is all that we need to get the new system call itself
working on x86.

Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: linux-api@vger.kernel.org
Cc: linux-mm@kvack.org
Cc: x86@kernel.org
Cc: torvalds@linux-foundation.org
Cc: akpm@linux-foundation.org
---

 b/arch/x86/entry/syscalls/syscall_32.tbl |    1 +
 b/arch/x86/entry/syscalls/syscall_64.tbl |    1 +
 2 files changed, 2 insertions(+)

diff -puN arch/x86/entry/syscalls/syscall_32.tbl~pkeys-114-x86-mprotect_key arch/x86/entry/syscalls/syscall_32.tbl
--- a/arch/x86/entry/syscalls/syscall_32.tbl~pkeys-114-x86-mprotect_key	2016-05-31 08:27:48.667093739 -0700
+++ b/arch/x86/entry/syscalls/syscall_32.tbl	2016-05-31 08:27:48.673094010 -0700
@@ -386,3 +386,4 @@
 377	i386	copy_file_range		sys_copy_file_range
 378	i386	preadv2			sys_preadv2			compat_sys_preadv2
 379	i386	pwritev2		sys_pwritev2			compat_sys_pwritev2
+380	i386	pkey_mprotect		sys_pkey_mprotect
diff -puN arch/x86/entry/syscalls/syscall_64.tbl~pkeys-114-x86-mprotect_key arch/x86/entry/syscalls/syscall_64.tbl
--- a/arch/x86/entry/syscalls/syscall_64.tbl~pkeys-114-x86-mprotect_key	2016-05-31 08:27:48.668093784 -0700
+++ b/arch/x86/entry/syscalls/syscall_64.tbl	2016-05-31 08:27:48.673094010 -0700
@@ -335,6 +335,7 @@
 326	common	copy_file_range		sys_copy_file_range
 327	64	preadv2			sys_preadv2
 328	64	pwritev2		sys_pwritev2
+329	common	pkey_mprotect		sys_pkey_mprotect
 
 #
 # x32-specific system call numbers start at 512 to avoid cache impact
_

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Thread

[PATCH 0/8] System Calls for Memory Protection Keys Dave Hansen <dave@sr71.net> - 2016-05-31 17:30 +0200
  [PATCH 5/8] x86, pkeys: allocation/free syscalls Dave Hansen <dave@sr71.net> - 2016-05-31 17:30 +0200
    Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls Jonathan Corbet <corbet@lwn.net> - 2016-06-01 20:40 +0200
      Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls Dave Hansen <dave@sr71.net> - 2016-06-01 21:40 +0200
        Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-06-02 02:20 +0200
          Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls Dave Hansen <dave@sr71.net> - 2016-06-02 02:20 +0200
            Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-06-03 02:30 +0200
              Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls Dave Hansen <dave@sr71.net> - 2016-06-03 19:30 +0200
                Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls "Michael Kerrisk (man-pages)" <mtk.manpages@gmail.com> - 2016-06-03 21:50 +0200
    Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls Arnd Bergmann <arnd@arndb.de> - 2016-06-02 13:50 +0200
      Re: [PATCH 5/8] x86, pkeys: allocation/free syscalls Dave Hansen <dave@sr71.net> - 2016-06-02 23:20 +0200
  [PATCH 4/8] x86: wire up mprotect_key() system call Dave Hansen <dave@sr71.net> - 2016-05-31 17:30 +0200
  [PATCH 3/8] x86, pkeys: make mprotect_key() mask off additional vm_flags Dave Hansen <dave@sr71.net> - 2016-05-31 17:30 +0200
  [PATCH 7/8] pkeys: add details of system call use to Documentation/ Dave Hansen <dave@sr71.net> - 2016-05-31 17:30 +0200
    Re: [PATCH 7/8] pkeys: add details of system call use to  Documentation/ Jonathan Corbet <corbet@lwn.net> - 2016-06-01 18:50 +0200
      Re: [PATCH 7/8] pkeys: add details of system call use to  Documentation/ Dave Hansen <dave@sr71.net> - 2016-06-01 18:50 +0200
        Re: [PATCH 7/8] pkeys: add details of system call use to  Documentation/ Jonathan Corbet <corbet@lwn.net> - 2016-06-01 19:00 +0200
          Re: [PATCH 7/8] pkeys: add details of system call use to  Documentation/ Dave Hansen <dave@sr71.net> - 2016-06-01 19:20 +0200
  [PATCH 6/8] x86, pkeys: add pkey set/get syscalls Dave Hansen <dave@sr71.net> - 2016-05-31 17:30 +0200
  [PATCH 2/8] mm: implement new pkey_mprotect() system call Dave Hansen <dave@sr71.net> - 2016-05-31 17:40 +0200
  [PATCH 1/8] x86, pkeys: add fault handling for PF_PK page fault bit Dave Hansen <dave@sr71.net> - 2016-05-31 17:40 +0200

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