From: Balbir Singh <bsingharora@gmail.com>
To: Ram Pai <linuxram@us.ibm.com>,
linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
linux-arch@vger.kernel.org, linux-mm@kvack.org, x86@kernel.org,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org
Cc: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au,
khandual@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com,
dave.hansen@intel.com, hbabu@us.ibm.com, arnd@arndb.de,
akpm@linux-foundation.org, corbet@lwn.net, mingo@redhat.com
Subject: Re: [RFC v4 02/17] mm: ability to disable execute permission on a key at creation
Date: Tue, 27 Jun 2017 21:32:49 +1000 [thread overview]
Message-ID: <1498563169.7935.16.camel@gmail.com> (raw)
In-Reply-To: <1498558319-32466-3-git-send-email-linuxram@us.ibm.com>
On Tue, 2017-06-27 at 03:11 -0700, Ram Pai wrote:
> Currently sys_pkey_create() provides the ability to disable read
> and write permission on the key, at creation. powerpc has the
> hardware support to disable execute on a pkey as well.This patch
> enhances the interface to let disable execute at key creation
> time. x86 does not allow this. Hence the next patch will add
> ability in x86 to return error if PKEY_DISABLE_EXECUTE is
> specified.
>
> Signed-off-by: Ram Pai <linuxram@us.ibm.com>
> ---
Acked-by: Balbir Singh <bsingharora@gmail.com>
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next prev parent reply other threads:[~2017-06-27 11:33 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 10:11 [RFC v4 00/17] powerpc: Memory Protection Keys Ram Pai
2017-06-27 10:11 ` [RFC v4 01/17] mm: introduce an additional vma bit for powerpc pkey Ram Pai
2017-06-27 10:54 ` Balbir Singh
2017-06-27 10:11 ` [RFC v4 02/17] mm: ability to disable execute permission on a key at creation Ram Pai
2017-06-27 11:32 ` Balbir Singh [this message]
2017-06-27 10:11 ` [RFC v4 03/17] x86: key creation with PKEY_DISABLE_EXECUTE disallowed Ram Pai
2017-06-27 11:32 ` Balbir Singh
2017-06-27 10:11 ` [RFC v4 04/17] powerpc: Implement sys_pkey_alloc and sys_pkey_free system call Ram Pai
2017-06-27 10:11 ` [RFC v4 05/17] powerpc: store and restore the pkey state across context switches Ram Pai
2017-06-27 10:11 ` [RFC v4 06/17] powerpc: Implementation for sys_mprotect_pkey() system call Ram Pai
2017-06-27 10:11 ` [RFC v4 07/17] powerpc: make the hash functions protection-key aware Ram Pai
2017-06-27 10:11 ` [RFC v4 08/17] powerpc: Program HPTE key protection bits Ram Pai
2017-06-27 10:11 ` [RFC v4 09/17] powerpc: call the hash functions with the correct pkey value Ram Pai
2017-06-27 15:24 ` Aneesh Kumar K.V
2017-06-28 7:12 ` Ram Pai
2017-06-27 10:11 ` [RFC v4 10/17] powerpc: Macro the mask used for checking DSI exception Ram Pai
2017-06-27 10:11 ` [RFC v4 11/17] powerpc: Handle exceptions caused by pkey violation Ram Pai
2017-06-27 10:11 ` [RFC v4 12/17] powerpc: Deliver SEGV signal on " Ram Pai
2017-06-27 10:11 ` [RFC v4 13/17] selftest: Move protecton key selftest to arch neutral directory Ram Pai
2017-06-27 10:11 ` [RFC v4 14/17] selftest: PowerPC specific test updates to memory protection keys Ram Pai
2017-06-27 10:11 ` [RFC v4 15/17] Documentation: Move protecton key documentation to arch neutral directory Ram Pai
2017-06-27 10:11 ` [RFC v4 16/17] Documentation: PowerPC specific updates to memory protection keys Ram Pai
2017-06-27 10:11 ` [RFC v4 17/17] procfs: display the protection-key number associated with a vma Ram Pai
2017-06-28 1:50 ` Michael Ellerman
2017-06-27 10:46 ` [RFC v4 00/17] powerpc: Memory Protection Keys Balbir Singh
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