linux-kernel - [PATCH 20/20] arm64:ilp32: add ARM64

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20170619155003.13218-21-ynorov@caviumnetworks.com>
Date:   Mon, 19 Jun 2017 18:50:03 +0300
From:   Yury Norov <ynorov@...iumnetworks.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Arnd Bergmann <arnd@...db.de>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-doc@...r.kernel.org
Cc:     Yury Norov <ynorov@...iumnetworks.com>,
        Adam Borowski <kilobyte@...band.pl>,
        Andreas Schwab <schwab@...e.de>,
        Andrew Pinski <pinskia@...il.com>,
        Bamvor Zhangjian <bamvor.zhangjian@...wei.com>,
        Chris Metcalf <cmetcalf@...hip.com>,
        Chris Metcalf <cmetcalf@...lanox.com>,
        Florian Weimer <fweimer@...hat.com>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        James Hogan <james.hogan@...tec.com>,
        James Morse <james.morse@....com>,
        Joseph Myers <joseph@...esourcery.com>,
        Maxim Kuvyrkov <maxim.kuvyrkov@...aro.org>,
        Nathan_Lynch@...tor.com, Prasun.Kapoor@...iumnetworks.com,
        Ramana Radhakrishnan <ramana.gcc@...glemail.com>,
        Steve Ellcey <sellcey@...iumnetworks.com>,
        Alexander Graf <agraf@...e.de>,
        Mark Brown <broonie@...nel.org>,
        christoph.muellner@...obroma-systems.com, davem@...emloft.net,
        Geert Uytterhoeven <geert@...ux-m68k.org>,
        Alexey Klimov <klimov.linux@...il.com>, linyongting@...wei.com,
        manuel.montezelo@...il.com, philipp.tomsich@...obroma-systems.com,
        schwidefsky@...ibm.com, szabolcs.nagy@....com,
        zhouchengming1@...wei.com, Andrew Pinski <apinski@...ium.com>,
        Andrew Pinski <Andrew.Pinski@...iumnetworks.com>
Subject: [PATCH 20/20] arm64:ilp32: add ARM64_ILP32 to Kconfig

From: Andrew Pinski <apinski@...ium.com>

This patch adds the config option for ILP32.

Signed-off-by: Andrew Pinski <Andrew.Pinski@...iumnetworks.com>
Signed-off-by: Philipp Tomsich <philipp.tomsich@...obroma-systems.com>
Signed-off-by: Christoph Muellner <christoph.muellner@...obroma-systems.com>
Signed-off-by: Yury Norov <ynorov@...iumnetworks.com>
Reviewed-by: David Daney <ddaney@...iumnetworks.com>
---
 arch/arm64/Kconfig | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 168ab2cc426b..242771c764a5 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1079,7 +1079,7 @@ source "fs/Kconfig.binfmt"
 
 config COMPAT
 	def_bool y
-	depends on AARCH32_EL0
+	depends on AARCH32_EL0 || ARM64_ILP32
 
 config AARCH32_EL0
 	bool "Kernel support for 32-bit EL0"
@@ -1100,6 +1100,13 @@ config AARCH32_EL0
 
 	  If you want to execute 32-bit userspace applications, say Y.
 
+config ARM64_ILP32
+	bool "Kernel support for ILP32"
+	help
+	  This option enables support for AArch64 ILP32 user space.  ILP32
+	  is an ABI where long and pointers are 32bits but it uses the AARCH64
+	  instruction set.
+
 config SYSVIPC_COMPAT
 	def_bool y
 	depends on COMPAT && SYSVIPC
-- 
2.11.0