From: Michael Ellerman <mpe@ellerman.id.au>
To: Khalid Aziz <khalid.aziz@oracle.com>,
akpm@linux-foundation.org, benh@kernel.crashing.org,
paulus@samba.org, davem@davemloft.net,
dave.hansen@linux.intel.com
Cc: Khalid Aziz <khalid.aziz@oracle.com>,
bsingharora@gmail.com, nborisov@suse.com, aarcange@redhat.com,
anthony.yznaga@oracle.com, mgorman@suse.de, linuxram@us.ibm.com,
kirill.shutemov@linux.intel.com, dan.j.williams@intel.com,
jack@suse.cz, ross.zwisler@linux.intel.com,
gregkh@linuxfoundation.org, tglx@linutronix.de, mhocko@suse.com,
n-horiguchi@ah.jp.nec.com, jglisse@redhat.com,
henry.willard@oracle.com, aneesh.kumar@linux.vnet.ibm.com,
khandual@linux.vnet.ibm.com, linuxppc-dev@lists.ozlabs.org,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
sparclinux@vger.kernel.org, Khalid Aziz <khalid@gonehiking.org>
Subject: Re: [PATCH v12 07/11] mm: Add address parameter to arch_validate_prot()
Date: Mon, 26 Feb 2018 16:54:12 +1100 [thread overview]
Message-ID: <87d10s9tyz.fsf@concordia.ellerman.id.au> (raw)
In-Reply-To: <349751cbd54fda6f4a223f941aa71bbfe7be77ce.1519227112.git.khalid.aziz@oracle.com>
Khalid Aziz <khalid.aziz@oracle.com> writes:
> A protection flag may not be valid across entire address space and
> hence arch_validate_prot() might need the address a protection bit is
> being set on to ensure it is a valid protection flag. For example, sparc
> processors support memory corruption detection (as part of ADI feature)
> flag on memory addresses mapped on to physical RAM but not on PFN mapped
> pages or addresses mapped on to devices. This patch adds address to the
> parameters being passed to arch_validate_prot() so protection bits can
> be validated in the relevant context.
>
> Signed-off-by: Khalid Aziz <khalid.aziz@oracle.com>
> Cc: Khalid Aziz <khalid@gonehiking.org>
> Reviewed-by: Anthony Yznaga <anthony.yznaga@oracle.com>
> ---
> v8:
> - Added addr parameter to powerpc arch_validate_prot() (suggested
> by Michael Ellerman)
> v9:
> - new patch
>
> arch/powerpc/include/asm/mman.h | 4 ++--
> arch/powerpc/kernel/syscalls.c | 2 +-
These changes look fine to me:
Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc)
cheers
next prev parent reply other threads:[~2018-02-26 5:54 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-02-21 17:15 [PATCH v12 00/11] Application Data Integrity feature introduced by SPARC M7 Khalid Aziz
2018-02-21 17:15 ` [PATCH v12 01/11] signals, sparc: Add signal codes for ADI violations Khalid Aziz
2018-02-21 20:58 ` Eric W. Biederman
2018-02-21 17:15 ` [PATCH v12 02/11] mm, swap: Add infrastructure for saving page metadata on swap Khalid Aziz
2018-03-05 19:20 ` Dave Hansen
2018-03-05 19:29 ` Khalid Aziz
2018-03-05 19:35 ` Dave Hansen
2018-03-05 20:28 ` Khalid Aziz
2018-03-05 21:04 ` Dave Hansen
2018-03-05 21:14 ` Khalid Aziz
2018-03-06 22:47 ` Andrew Morton
2018-02-21 17:15 ` [PATCH v12 03/11] sparc64: Add support for ADI register fields, ASIs and traps Khalid Aziz
2018-02-21 17:15 ` [PATCH v12 04/11] sparc64: Add HV fault type handlers for ADI related faults Khalid Aziz
2018-02-21 17:15 ` [PATCH v12 05/11] sparc64: Add handler for "Memory Corruption Detected" trap Khalid Aziz
2018-02-21 17:15 ` [PATCH v12 06/11] sparc64: Add auxiliary vectors to report platform ADI properties Khalid Aziz
2018-02-21 17:15 ` [PATCH v12 07/11] mm: Add address parameter to arch_validate_prot() Khalid Aziz
2018-02-26 5:54 ` Michael Ellerman [this message]
2018-03-06 22:48 ` Andrew Morton
2018-02-21 17:15 ` [PATCH v12 08/11] mm: Clear arch specific VM flags on protection change Khalid Aziz
2018-03-05 19:23 ` Dave Hansen
2018-03-05 20:38 ` Khalid Aziz
2018-03-06 22:48 ` Andrew Morton
2018-02-21 17:15 ` [PATCH v12 09/11] mm: Allow arch code to override copy_highpage() Khalid Aziz
2018-03-05 19:24 ` Dave Hansen
2018-03-05 20:42 ` Khalid Aziz
2018-03-05 20:56 ` Dave Hansen
2018-03-06 22:48 ` Andrew Morton
2018-02-21 17:15 ` [PATCH v12 10/11] sparc64: Add support for ADI (Application Data Integrity) Khalid Aziz
2018-02-23 2:50 ` kbuild test robot
2018-02-23 18:51 ` Khalid Aziz
2018-02-23 18:57 ` David Miller
2018-02-23 22:11 ` Khalid Aziz
2018-03-05 19:22 ` Dave Hansen
2018-03-05 21:14 ` Khalid Aziz
2018-03-05 21:26 ` Dave Hansen
2018-03-05 21:31 ` Dave Hansen
2018-03-05 22:55 ` Khalid Aziz
2018-03-05 21:26 ` Dave Hansen
2018-03-05 21:37 ` Khalid Aziz
2018-03-05 21:50 ` Dave Hansen
2018-02-21 17:15 ` [PATCH v12 11/11] sparc64: Update signal delivery to use new helper functions Khalid Aziz
2018-02-21 20:59 ` Eric W. Biederman
2018-03-18 15:08 ` [PATCH v12 00/11] Application Data Integrity feature introduced by SPARC M7 David Miller
2018-03-19 15:19 ` Khalid Aziz
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