From: cov@codeaurora.org (Christopher Covington)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 6/6] ARM: virt: hide CONFIG_ARM_VIRT_EXT from user
Date: Fri, 11 Jan 2013 10:42:40 -0500 [thread overview]
Message-ID: <50F032F0.3070906@codeaurora.org> (raw)
In-Reply-To: <1357918457-20469-7-git-send-email-will.deacon@arm.com>
Hi Will,
On 01/11/2013 10:34 AM, Will Deacon wrote:
> ARM_VIRT_EXT is a property of CPU_V7, but does not adversely affect
> other CPUs that can be built into the same kernel image (i.e. ARMv6+).
>
> This patch defaults ARM_VIRT_EXT to y if CPU_V7, allowing hypervisors
> such as KVM to make better use of the option and being able to rely
> on hyp-mode boot support.
[...]
> @@ -640,11 +641,6 @@ config ARM_VIRT_EXT
> use of this feature. Refer to Documentation/arm/Booting for
> details.
>
> - It is safe to enable this option even if the kernel may not be
> - booted in HYP mode, may not have support for the
> - virtualization extensions, or may be booted with a
> - non-compliant bootloader.
Why take this out?
[...]
Regards,
Christopher
--
Employee of Qualcomm Innovation Center, Inc.
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, hosted by
the Linux Foundation
next prev parent reply other threads:[~2013-01-11 15:42 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-11 15:34 [PATCH 0/6] Random collection of hyp-boot fixes and updates Will Deacon
2013-01-11 15:34 ` [PATCH 1/6] ARM: virt: Avoid bx instruction for compatibility with <=ARMv4 Will Deacon
2013-01-11 15:34 ` [PATCH 2/6] ARM: virt: boot secondary CPUs through the right entry point Will Deacon
2013-01-11 15:34 ` [PATCH 3/6] ARM: virt: simplify __hyp_stub_install epilog Will Deacon
2013-01-11 15:34 ` [PATCH 4/6] ARM: virt: avoid clobbering lr when forcing svc mode Will Deacon
2013-01-11 15:34 ` [PATCH 5/6] ARM: virt: use PSR_N_BIT for detecting boot CPU mode mismatch Will Deacon
2013-01-11 15:34 ` [PATCH 6/6] ARM: virt: hide CONFIG_ARM_VIRT_EXT from user Will Deacon
2013-01-11 15:42 ` Christopher Covington [this message]
2013-01-11 16:43 ` Will Deacon
2013-01-11 17:22 ` Christopher Covington
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