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, luto@kernel.org, mgorman@techsingularity.net, Dave Hansen <dave@sr71.net>, dave.hansen@linux.intel.com, arnd@arndb.de Subject: [PATCH 06/10] generic syscalls: wire up memory protection keys syscalls Date: Fri, 29 Jul 2016 09:30:18 -0700 [thread overview] Message-ID: <20160729163018.505A6875@viggo.jf.intel.com> (raw) In-Reply-To: <20160729163009.5EC1D38C@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 --- 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 2016-07-29 09:18:58.426562491 -0700 +++ b/include/linux/syscalls.h 2016-07-29 09:18:58.431562718 -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 2016-07-29 09:18:58.428562582 -0700 +++ b/include/uapi/asm-generic/unistd.h 2016-07-29 09:18:58.432562763 -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 291 /* * All syscalls below here should go away really, _
WARNING: multiple messages have this Message-ID (diff)
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, luto@kernel.org, mgorman@techsingularity.net, Dave Hansen <dave@sr71.net>, dave.hansen@linux.intel.com, arnd@arndb.de Subject: [PATCH 06/10] generic syscalls: wire up memory protection keys syscalls Date: Fri, 29 Jul 2016 09:30:18 -0700 [thread overview] Message-ID: <20160729163018.505A6875@viggo.jf.intel.com> (raw) In-Reply-To: <20160729163009.5EC1D38C@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 --- 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 2016-07-29 09:18:58.426562491 -0700 +++ b/include/linux/syscalls.h 2016-07-29 09:18:58.431562718 -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 2016-07-29 09:18:58.428562582 -0700 +++ b/include/uapi/asm-generic/unistd.h 2016-07-29 09:18:58.432562763 -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 291 /* * All syscalls below here should go away really, _ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2016-07-29 16:30 UTC|newest] Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-07-29 16:30 [PATCH 00/10] [v6] System Calls for Memory Protection Keys Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-07-29 16:30 ` [PATCH 01/10] x86, pkeys: add fault handling for PF_PK page fault bit Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-09-09 11:10 ` [tip:mm/pkeys] x86/pkeys: Add " tip-bot for Dave Hansen 2016-07-29 16:30 ` [PATCH 02/10] mm: implement new pkey_mprotect() system call Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-09-09 11:11 ` [tip:mm/pkeys] mm: Implement " tip-bot for Dave Hansen 2016-07-29 16:30 ` [PATCH 03/10] x86, pkeys: make mprotect_key() mask off additional vm_flags Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-09-09 11:11 ` [tip:mm/pkeys] x86/pkeys: Make " tip-bot for Dave Hansen 2016-07-29 16:30 ` [PATCH 04/10] x86, pkeys: allocation/free syscalls Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-09-09 11:12 ` [tip:mm/pkeys] x86/pkeys: Allocation/free syscalls tip-bot for Dave Hansen 2016-07-29 16:30 ` [PATCH 05/10] x86: wire up protection keys system calls Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-09-09 11:12 ` [tip:mm/pkeys] x86: Wire " tip-bot for Dave Hansen 2016-07-29 16:30 ` Dave Hansen [this message] 2016-07-29 16:30 ` [PATCH 06/10] generic syscalls: wire up memory protection keys syscalls Dave Hansen 2016-09-09 11:12 ` [tip:mm/pkeys] generic syscalls: Wire " tip-bot for Dave Hansen 2016-07-29 16:30 ` [PATCH 07/10] pkeys: add details of system call use to Documentation/ Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-09-09 11:13 ` [tip:mm/pkeys] pkeys: Add " tip-bot for Dave Hansen 2016-07-29 16:30 ` [PATCH 08/10] x86, pkeys: default to a restrictive init PKRU Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-07-29 17:29 ` Andy Lutomirski 2016-07-29 17:29 ` Andy Lutomirski 2016-07-29 17:50 ` Dave Hansen 2016-07-29 17:50 ` Dave Hansen 2016-07-29 19:44 ` Andy Lutomirski 2016-07-29 19:44 ` Andy Lutomirski 2016-08-01 14:42 ` Vlastimil Babka 2016-08-01 14:42 ` Vlastimil Babka 2016-08-01 14:58 ` Dave Hansen 2016-08-01 14:58 ` Dave Hansen 2016-08-02 8:20 ` Vlastimil Babka 2016-08-02 8:20 ` Vlastimil Babka 2016-09-09 11:13 ` [tip:mm/pkeys] x86/pkeys: Default " tip-bot for Dave Hansen 2016-07-29 16:30 ` [PATCH 09/10] x86, pkeys: allow configuration of init_pkru Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-08-02 8:28 ` Vlastimil Babka 2016-08-02 8:28 ` Vlastimil Babka 2016-08-02 14:37 ` Dave Hansen 2016-08-02 14:37 ` Dave Hansen 2016-09-09 11:14 ` [tip:mm/pkeys] x86/pkeys: Allow " tip-bot for Dave Hansen 2016-07-29 16:30 ` [PATCH 10/10] x86, pkeys: add self-tests Dave Hansen 2016-07-29 16:30 ` Dave Hansen 2016-09-09 11:14 ` [tip:mm/pkeys] x86/pkeys: Add self-tests tip-bot for Dave Hansen 2016-08-08 23:18 [PATCH 00/10] [v6] System Calls for Memory Protection Keys Dave Hansen 2016-08-08 23:18 ` [PATCH 06/10] generic syscalls: wire up memory protection keys syscalls Dave Hansen 2016-08-08 23:18 ` Dave Hansen
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