From: s.gottschall@dd-wrt.com (Sebastian Gottschall)
To: linux-arm-kernel@lists.infradead.org
Subject: arm: ARM_VIRT_EXT is not supported by all v7 platforms, so it should not be enabled by default
Date: Fri, 19 Apr 2013 20:07:15 +0200 [thread overview]
Message-ID: <kks14c$e4p$1@ger.gmane.org> (raw)
introduced in kernel 3.9 CONFIG_ARM_VIRT_EXT is default for all V7 arm
cpu's. this is wrong and breaks smp support on BCM4708 for example.
so keep it optional since no all v7 cpu's seem to support it. BCM4708
for instance is a arm cortex-a9. please merge this into one of the next
patches.
Index: arch/arm/mm/Kconfig
===================================================================
--- arch/arm/mm/Kconfig (revision 21211)
+++ arch/arm/mm/Kconfig (working copy)
@@ -640,8 +640,7 @@
config ARM_VIRT_EXT
bool
- depends on MMU
- default y if CPU_V7
+ depends on MMU && CPU_V7
help
Enable the kernel to make use of the ARM Virtualization
Extensions to install hypervisors without run-time firmware
WARNING: multiple messages have this Message-ID (diff)
From: Sebastian Gottschall <s.gottschall@dd-wrt.com>
To: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Subject: arm: ARM_VIRT_EXT is not supported by all v7 platforms, so it should not be enabled by default
Date: Fri, 19 Apr 2013 20:07:15 +0200 [thread overview]
Message-ID: <kks14c$e4p$1@ger.gmane.org> (raw)
introduced in kernel 3.9 CONFIG_ARM_VIRT_EXT is default for all V7 arm
cpu's. this is wrong and breaks smp support on BCM4708 for example.
so keep it optional since no all v7 cpu's seem to support it. BCM4708
for instance is a arm cortex-a9. please merge this into one of the next
patches.
Index: arch/arm/mm/Kconfig
===================================================================
--- arch/arm/mm/Kconfig (revision 21211)
+++ arch/arm/mm/Kconfig (working copy)
@@ -640,8 +640,7 @@
config ARM_VIRT_EXT
bool
- depends on MMU
- default y if CPU_V7
+ depends on MMU && CPU_V7
help
Enable the kernel to make use of the ARM Virtualization
Extensions to install hypervisors without run-time firmware
next reply other threads:[~2013-04-19 18:07 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-19 18:07 Sebastian Gottschall [this message]
2013-04-19 18:07 ` arm: ARM_VIRT_EXT is not supported by all v7 platforms, so it should not be enabled by default Sebastian Gottschall
2013-04-22 10:46 ` Will Deacon
2013-04-22 10:46 ` Will Deacon
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