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 /* 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 #else 43 #define xen_pvh_domain() (0) 44 #endif 45 #endif /* _XEN_XEN_H */ 46