[PATCH v10 24/27] powerpc: sys_pkey_alloc() and sys_pkey_free() system calls

linux-arch.vger.kernel.org archive mirror
 help / color / mirror / Atom feed

From: Ram Pai <linuxram@us.ibm.com>
To: mpe@ellerman.id.au, mingo@redhat.com, akpm@linux-foundation.org,
	corbet@lwn.net, arnd@arndb.de
Cc: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org,
	x86@kernel.org, linux-arch@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
	linux-kernel@vger.kernel.org, dave.hansen@intel.com,
	benh@kernel.crashing.org, paulus@samba.org,
	khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com,
	bsingharora@gmail.com, hbabu@us.ibm.com, mhocko@kernel.org,
	bauerman@linux.vnet.ibm.com, ebiederm@xmission.com,
	linuxram@us.ibm.com
Subject: [PATCH v10 24/27] powerpc: sys_pkey_alloc() and sys_pkey_free() system calls
Date: Thu, 18 Jan 2018 17:50:45 -0800	[thread overview]
Message-ID: <1516326648-22775-25-git-send-email-linuxram@us.ibm.com> (raw)
In-Reply-To: <1516326648-22775-1-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 449912f..dea4a95 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -389,3 +389,5 @@
 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 df8684f..5db4385 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -395,5 +395,7 @@
 #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

--
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>

WARNING: multiple messages have this Message-ID (diff)

From: Ram Pai <linuxram@us.ibm.com>
To: mpe@ellerman.id.au, mingo@redhat.com, akpm@linux-foundation.org,
	corbet@lwn.net, arnd@arndb.de
Cc: linuxppc-dev@lists.ozlabs.org, linux-mm@kvack.org,
	x86@kernel.org, linux-arch@vger.kernel.org,
	linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
	linux-kernel@vger.kernel.org, dave.hansen@intel.com,
	benh@kernel.crashing.org, paulus@samba.org,
	khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com,
	bsingharora@gmail.com, hbabu@us.ibm.com, mhocko@kernel.org,
	bauerman@linux.vnet.ibm.com, ebiederm@xmission.com,
	linuxram@us.ibm.com
Subject: [PATCH v10 24/27] powerpc: sys_pkey_alloc() and sys_pkey_free() system calls
Date: Thu, 18 Jan 2018 17:50:45 -0800	[thread overview]
Message-ID: <1516326648-22775-25-git-send-email-linuxram@us.ibm.com> (raw)
Message-ID: <20180119015045.ni2uMHpcoq2LzQ59mfAnv4oVUadvHi7RFhyfoJnEE_Y@z> (raw)
In-Reply-To: <1516326648-22775-1-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 449912f..dea4a95 100644
--- a/arch/powerpc/include/asm/systbl.h
+++ b/arch/powerpc/include/asm/systbl.h
@@ -389,3 +389,5 @@
 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 df8684f..5db4385 100644
--- a/arch/powerpc/include/uapi/asm/unistd.h
+++ b/arch/powerpc/include/uapi/asm/unistd.h
@@ -395,5 +395,7 @@
 #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:[~2018-01-19  1:50 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-01-19  1:50 [PATCH v10 00/27] powerpc, mm: Memory Protection Keys Ram Pai
2018-01-19  1:50 ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 01/27] mm, powerpc, x86: define VM_PKEY_BITx bits if CONFIG_ARCH_HAS_PKEYS is enabled Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-21 15:34   ` Aneesh Kumar K.V
2018-01-21 15:34     ` Aneesh Kumar K.V
2018-01-23  6:37   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 02/27] mm, powerpc, x86: introduce an additional vma bit for powerpc pkey Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 03/27] powerpc: initial pkey plumbing Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-22  3:34   ` [v10,03/27] " Michael Ellerman
2018-01-22  3:34     ` Michael Ellerman
2018-01-19  1:50 ` [PATCH v10 04/27] powerpc: track allocation status of all pkeys Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 05/27] powerpc: helper function to read,write AMR,IAMR,UAMOR registers Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 06/27] powerpc: helper functions to initialize AMR, IAMR and UAMOR registers Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 07/27] powerpc: cleanup AMR, IAMR when a key is allocated or freed Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 08/27] powerpc: implementation for arch_set_user_pkey_access() Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 09/27] powerpc: ability to create execute-disabled pkeys Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 10/27] powerpc: store and restore the pkey state across context switches Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 11/27] powerpc: introduce execute-only pkey Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 12/27] powerpc: ability to associate pkey to a vma Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 13/27] powerpc: implementation for arch_override_mprotect_pkey() Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 14/27] powerpc: map vma key-protection bits to pte key bits Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 15/27] powerpc: Program HPTE key protection bits Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 16/27] powerpc: helper to validate key-access permissions of a pte Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 17/27] powerpc: check key protection for user page access Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 18/27] powerpc: implementation for arch_vma_access_permitted() Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 19/27] powerpc: Handle exceptions caused by pkey violation Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 20/27] powerpc: introduce get_mm_addr_key() helper Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 21/27] powerpc: Deliver SEGV signal on pkey violation Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 22/27] powerpc/ptrace: Add memory protection key regset Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 23/27] powerpc: Enable pkey subsystem Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` Ram Pai [this message]
2018-01-19  1:50   ` [PATCH v10 24/27] powerpc: sys_pkey_alloc() and sys_pkey_free() system calls Ram Pai
2018-01-19  1:50 ` [PATCH v10 25/27] powerpc: sys_pkey_mprotect() system call Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 26/27] mm, x86 : introduce arch_pkeys_enabled() Ram Pai
2018-01-19  1:50   ` Ram Pai
2018-01-19  1:50 ` [PATCH v10 27/27] mm: display pkey in smaps if arch_pkeys_enabled() is true Ram Pai
2018-01-19 16:09   ` Eric W. Biederman
2018-01-19 16:09     ` Eric W. Biederman
2018-01-19 16:50     ` Ram Pai
2018-01-19 17:04       ` Eric W. Biederman
2018-01-19 17:04         ` Eric W. Biederman
2018-01-30 12:16   ` Michal Hocko
2018-01-30 12:16     ` Michal Hocko
2018-01-30 16:28     ` Ram Pai
2018-01-30 16:28       ` Ram Pai

find likely ancestor, descendant, or conflicting patches for this message:
( dfblob:449912f dfblob:dea4a95 dfblob:9ba11db dfblob:e0273bc
dfblob:df8684f dfblob:5db4385 dfblob:449912f dfblob:dea4a95
dfblob:9ba11db dfblob:e0273bc dfblob:df8684f dfblob:5db4385 )
 OR (
bs:"[PATCH v10 24/27] powerpc: sys_pkey_alloc() and sys_pkey_free() system calls" )
	(help)

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=1516326648-22775-25-git-send-email-linuxram@us.ibm.com \
    --to=linuxram@us.ibm.com \
    --cc=akpm@linux-foundation.org \
    --cc=aneesh.kumar@linux.vnet.ibm.com \
    --cc=arnd@arndb.de \
    --cc=bauerman@linux.vnet.ibm.com \
    --cc=benh@kernel.crashing.org \
    --cc=bsingharora@gmail.com \
    --cc=corbet@lwn.net \
    --cc=dave.hansen@intel.com \
    --cc=ebiederm@xmission.com \
    --cc=hbabu@us.ibm.com \
    --cc=khandual@linux.vnet.ibm.com \
    --cc=linux-arch@vger.kernel.org \
    --cc=linux-doc@vger.kernel.org \
    --cc=linux-kernel@vger.kernel.org \
    --cc=linux-kselftest@vger.kernel.org \
    --cc=linux-mm@kvack.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=mhocko@kernel.org \
    --cc=mingo@redhat.com \
    --cc=mpe@ellerman.id.au \
    --cc=paulus@samba.org \
    --cc=x86@kernel.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Be sure your reply has a Subject: header at the top and a blank line before the message body.

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).