From: Ram Pai <linuxram@us.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com,
bsingharora@gmail.com, hbabu@us.ibm.com, linuxram@us.ibm.com,
bauerman@linux.vnet.ibm.com, mhocko@kernel.org
Subject: [RFC v7 07/25] powerpc: sys_pkey_alloc() and sys_pkey_free() system calls
Date: Sun, 30 Jul 2017 17:12:08 -0700 [thread overview]
Message-ID: <1501459946-11619-8-git-send-email-linuxram@us.ibm.com> (raw)
In-Reply-To: <1501459946-11619-1-git-send-email-linuxram@us.ibm.com>
Finally this patch provides the ability for a process to
allocate and free a protection key.
Signed-off-by: Ram Pai <linuxram@us.ibm.com>
---
arch/powerpc/include/asm/systbl.h | 2 ++
arch/powerpc/include/asm/unistd.h | 4 +---
arch/powerpc/include/uapi/asm/unistd.h | 2 ++
3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h
index 1c94708..22dd776 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -388,3 +388,5 @@
COMPAT_SYS_SPU(pwritev2)
SYSCALL(kexec_file_load)
SYSCALL(statx)
+SYSCALL(pkey_alloc)
+SYSCALL(pkey_free)
diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index 9ba11db..e0273bc 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -12,13 +12,11 @@
#include <uapi/asm/unistd.h>
-#define NR_syscalls 384
+#define NR_syscalls 386
#define __NR__exit __NR_exit
#define __IGNORE_pkey_mprotect
-#define __IGNORE_pkey_alloc
-#define __IGNORE_pkey_free
#ifndef __ASSEMBLY__
diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h
index b85f142..7993a07 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -394,5 +394,7 @@
#define __NR_pwritev2 381
#define __NR_kexec_file_load 382
#define __NR_statx 383
+#define __NR_pkey_alloc 384
+#define __NR_pkey_free 385
#endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */
--
1.7.1
next prev parent reply other threads:[~2017-07-31 0:12 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-07-31 0:12 [RFC v7 00/25] powerpc: Memory Protection Keys Ram Pai
2017-07-31 0:12 ` [RFC v7 01/25] powerpc: define an additional vma bit for protection keys Ram Pai
2017-07-31 0:12 ` [RFC v7 02/25] powerpc: track allocation status of all pkeys Ram Pai
2017-08-10 20:25 ` Thiago Jung Bauermann
2017-08-11 5:39 ` Michael Ellerman
2017-08-17 16:00 ` Ram Pai
2017-08-17 15:48 ` Ram Pai
2017-08-17 20:40 ` Thiago Jung Bauermann
2017-10-18 2:42 ` Balbir Singh
2017-10-18 3:40 ` Ram Pai
2017-10-18 16:08 ` Laurent Dufour
2017-10-18 22:04 ` Ram Pai
2017-07-31 0:12 ` [RFC v7 03/25] powerpc: helper function to read, write AMR, IAMR, UAMOR registers Ram Pai
2017-07-31 0:12 ` [RFC v7 04/25] powerpc: helper functions to initialize AMR, IAMR and " Ram Pai
2017-07-31 0:12 ` [RFC v7 05/25] powerpc: cleaup AMR, iAMR when a key is allocated or freed Ram Pai
2017-07-31 0:12 ` [RFC v7 06/25] powerpc: implementation for arch_set_user_pkey_access() Ram Pai
2017-07-31 0:12 ` Ram Pai [this message]
2017-07-31 0:12 ` [RFC v7 08/25] powerpc: ability to create execute-disabled pkeys Ram Pai
2017-07-31 0:12 ` [RFC v7 09/25] powerpc: store and restore the pkey state across context switches Ram Pai
2017-08-10 20:46 ` Thiago Jung Bauermann
2017-08-11 6:34 ` Michael Ellerman
2017-08-17 16:41 ` Ram Pai
2017-07-31 0:12 ` [RFC v7 10/25] powerpc: introduce execute-only pkey Ram Pai
2017-07-31 0:12 ` [RFC v7 11/25] powerpc: ability to associate pkey to a vma Ram Pai
2017-07-31 0:12 ` [RFC v7 12/25] powerpc: implementation for arch_override_mprotect_pkey() Ram Pai
2017-10-18 15:58 ` Laurent Dufour
2017-10-18 21:37 ` Ram Pai
2017-07-31 0:12 ` [RFC v7 13/25] powerpc: map vma key-protection bits to pte key bits Ram Pai
2017-07-31 0:12 ` [RFC v7 14/25] powerpc: sys_pkey_mprotect() system call Ram Pai
2017-07-31 0:12 ` [RFC v7 15/25] powerpc: Program HPTE key protection bits Ram Pai
2017-10-18 16:15 ` Laurent Dufour
2017-10-18 22:12 ` Ram Pai
2017-10-19 5:12 ` Michael Ellerman
2017-07-31 0:12 ` [RFC v7 16/25] powerpc: helper to validate key-access permissions of a pte Ram Pai
2017-10-18 16:08 ` Laurent Dufour
2017-10-18 21:56 ` Ram Pai
2017-10-19 5:13 ` Michael Ellerman
2017-07-31 0:12 ` [RFC v7 17/25] powerpc: check key protection for user page access Ram Pai
2017-07-31 0:12 ` [RFC v7 18/25] powerpc: Macro the mask used for checking DSI exception Ram Pai
2017-07-31 0:12 ` [RFC v7 19/25] powerpc: implementation for arch_vma_access_permitted() Ram Pai
2017-07-31 0:12 ` [RFC v7 20/25] powerpc: Handle exceptions caused by pkey violation Ram Pai
2017-07-31 0:12 ` [RFC v7 21/25] powerpc: capture AMR register content on " Ram Pai
2017-07-31 0:12 ` [RFC v7 22/25] powerpc: introduce get_pte_pkey() helper Ram Pai
2017-07-31 0:12 ` [RFC v7 23/25] powerpc: capture the violated protection key on fault Ram Pai
2017-07-31 0:12 ` [RFC v7 24/25] powerpc: Deliver SEGV signal on pkey violation Ram Pai
2017-08-10 21:00 ` Thiago Jung Bauermann
2017-08-11 10:26 ` Michael Ellerman
2017-08-17 17:14 ` Ram Pai
2017-08-18 4:48 ` Michael Ellerman
2017-08-18 17:04 ` Ram Pai
2017-08-18 21:54 ` Benjamin Herrenschmidt
2017-08-18 22:36 ` Ram Pai
2017-10-18 2:25 ` Balbir Singh
2017-10-18 3:01 ` Ram Pai
2017-08-18 22:49 ` Ram Pai
2017-08-19 8:23 ` Benjamin Herrenschmidt
2017-07-31 0:12 ` [RFC v7 25/25] powerpc: Enable pkey subsystem Ram Pai
2017-08-10 21:27 ` Thiago Jung Bauermann
2017-08-17 17:40 ` Ram Pai
2017-08-17 20:30 ` Thiago Jung Bauermann
2017-08-17 23:48 ` Ram Pai
2017-08-18 5:07 ` Michael Ellerman
2017-08-18 15:26 ` Thiago Jung Bauermann
2017-08-18 16:32 ` Ram Pai
2017-08-11 17:34 ` [RFC v7 26/25] mm/mprotect, powerpc/mm/pkeys, x86/mm/pkeys: Add sysfs interface Thiago Jung Bauermann
2017-08-18 0:25 ` Ram Pai
2017-08-18 23:19 ` Thiago Jung Bauermann
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