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SubjectRe: [Xen-devel] [PATCH 02/24] xen/arm: hypercalls
On Thu, 26 Jul 2012, David Vrabel wrote:
> On 26/07/12 16:33, Stefano Stabellini wrote:
> >
> > + * The hvc ISS is required to be 0xEA1, that is the Xen specific ARM
> > + * hypercall tag.
>
> Is this number, 0xea1, assigned to Xen by some external body?

I am not aware of any "external body" that could assign us such a number
but it is specified in the Xen hypercall calling convention, documented
here:

http://xenbits.xensource.com/hg/xen-unstable.hg/file/663eb766cdde/xen/include/public/arch-arm.h


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