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Re: [Xen-devel] [PATCH] x86/hvm: Allow the guest to permit the use of userspace hypercalls

On Mon, 2016-01-11 at 13:59 +0000, Andrew Cooper wrote:
> Arm folks: Is something like this sufficiently generic to be useful on
> Arm, perhaps with more generic naming?

ARM's HVC instruction is always invalid from userspace, i.e. it would
result in #UNDEF and there is no control bit to make it do otherwise, so I
think there isn't much point.


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