Re: [Xen-devel] [PATCH 07/22] vixen: introduce is_vixen() to allow altering behavior

[Matt Wilson <msw@xxxxxxxx>]

On Sat, Jan 06, 2018 at 02:54:22PM -0800, Anthony Liguori wrote:
> From: Anthony Liguori <aliguori@xxxxxxxxxx>
> 
> Vixen (Virtualized Xen) is a paravirtual mode of Xen where
> paravirtual I/O is passed through from the parent hypervisor
> all the way through the dom0 guest.  The dom0 guest is also
> deprivileged and renumbered to give the appearance that it
> is running as a normal PV guest.
> 
> Signed-off-by: Anthony Liguori <aliguori@xxxxxxxxxx>
> ---
>  xen/arch/x86/guest/Makefile       |  1 +
>  xen/arch/x86/guest/vixen.c        | 30 ++++++++++++++++
>  xen/include/asm-x86/guest/vixen.h | 73 
> +++++++++++++++++++++++++++++++++++++++
>  3 files changed, 104 insertions(+)
>  create mode 100644 xen/arch/x86/guest/vixen.c
>  create mode 100644 xen/include/asm-x86/guest/vixen.h

This will break ARM builds in future patches that use is_vixen().

--msw

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