linux-kernel - [PATCH v2 10/12] powerpc/32s: Activate KUAP and KUEP by default

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Date:   Thu,  3 Jun 2021 08:41:45 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v2 10/12] powerpc/32s: Activate KUAP and KUEP by default

Now that KUAP and KUEP have been significantly optimised and can be
disabled at boot time using 'nosmap' and 'nosmep' kernel parameters,
them can be active by default like in other powerpc platforms.

It is still possible to disable them completely in the configuration.

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/platforms/Kconfig.cputype | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 885140055b7a..52f533b19518 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -389,7 +389,7 @@ config PPC_HAVE_KUEP
 config PPC_KUEP
 	bool "Kernel Userspace Execution Prevention"
 	depends on PPC_HAVE_KUEP
-	default y if !PPC_BOOK3S_32
+	default y
 	help
 	  Enable support for Kernel Userspace Execution Prevention (KUEP)
 
@@ -401,7 +401,7 @@ config PPC_HAVE_KUAP
 config PPC_KUAP
 	bool "Kernel Userspace Access Protection"
 	depends on PPC_HAVE_KUAP
-	default y if !PPC_BOOK3S_32
+	default y
 	help
 	  Enable support for Kernel Userspace Access Protection (KUAP)
 
-- 
2.25.0