From: will.deacon@arm.com (Will Deacon)
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: Mon, 22 Apr 2013 11:46:54 +0100 [thread overview]
Message-ID: <20130422104653.GA2572@mudshark.cambridge.arm.com> (raw)
In-Reply-To: <kks14c$e4p$1@ger.gmane.org>
On Fri, Apr 19, 2013 at 07:07:15PM +0100, Sebastian Gottschall wrote:
> 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.
This was intentional, since ARM_VIRT_EXT shouldn't have any visible effect
when selected on CPUs without the virtualisation extensions.
If this is breaking SMP support, then there is a bug somewhere, so please
can elaborate on the problems which you are seeing?
Cheers,
Will
prev parent reply other threads:[~2013-04-22 10:46 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
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 [this message]
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