xref: /openbmc/linux/include/xen/xen.h (revision 981ab3f1)
1 #ifndef _XEN_XEN_H
2 #define _XEN_XEN_H
3 
4 enum 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
11 extern 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 extern bool xen_pvh;
34 #define xen_pvh_domain()	(xen_hvm_domain() && xen_pvh)
35 #else
36 #define xen_pvh_domain()	(0)
37 #endif
38 
39 #endif	/* _XEN_XEN_H */
40