From mboxrd@z Thu Jan 1 00:00:00 1970 From: cov@codeaurora.org (Christopher Covington) Date: Fri, 11 Jan 2013 10:42:40 -0500 Subject: [PATCH 6/6] ARM: virt: hide CONFIG_ARM_VIRT_EXT from user In-Reply-To: <1357918457-20469-7-git-send-email-will.deacon@arm.com> References: <1357918457-20469-1-git-send-email-will.deacon@arm.com> <1357918457-20469-7-git-send-email-will.deacon@arm.com> Message-ID: <50F032F0.3070906@codeaurora.org> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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