1#ifndef _XEN_XEN_H
2#define _XEN_XEN_H
3
4enum xen_domain_type {
5	XEN_NATIVE,		/* running on bare hardware    */
6	XEN_PV_DOMAIN,		/* running in a PV domain      */
7	XEN_HVM_DOMAIN,		/* running in a Xen hvm domain */
8};
9
10#ifdef CONFIG_XEN
11extern enum xen_domain_type xen_domain_type;
12#else
13#define xen_domain_type		XEN_NATIVE
14#endif
15
16#define xen_domain()		(xen_domain_type != XEN_NATIVE)
17#define xen_pv_domain()		(xen_domain() &&			\
18				 xen_domain_type == XEN_PV_DOMAIN)
19#define xen_hvm_domain()	(xen_domain() &&			\
20				 xen_domain_type == XEN_HVM_DOMAIN)
21
22#ifdef CONFIG_XEN_DOM0
23#include <xen/interface/xen.h>
24#include <asm/xen/hypervisor.h>
25
26#define xen_initial_domain()	(xen_domain() && \
27				 xen_start_info && xen_start_info->flags & SIF_INITDOMAIN)
28#else  /* !CONFIG_XEN_DOM0 */
29#define xen_initial_domain()	(0)
30#endif	/* CONFIG_XEN_DOM0 */
31
32#ifdef CONFIG_XEN_PVH
33/* This functionality exists only for x86. The XEN_PVHVM support exists
34 * only in x86 world - hence on ARM it will be always disabled.
35 * N.B. ARM guests are neither PV nor HVM nor PVHVM.
36 * It's a bit like PVH but is different also (it's further towards the H
37 * end of the spectrum than even PVH).
38 */
39#include <xen/features.h>
40#define xen_pvh_domain() (xen_pv_domain() && \
41			  xen_feature(XENFEAT_auto_translated_physmap) && \
42			  xen_have_vector_callback)
43#else
44#define xen_pvh_domain()	(0)
45#endif
46#endif	/* _XEN_XEN_H */
47