Viewing file:  xen.h (1.37 KB) -rw-r--r--
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#ifndef _XEN_XEN_H
#define _XEN_XEN_H
enum xen_domain_type {
XEN_NATIVE, /* running on bare hardware */
XEN_PV_DOMAIN, /* running in a PV domain */
XEN_HVM_DOMAIN, /* running in a Xen hvm domain */
};
#ifdef CONFIG_XEN
extern enum xen_domain_type xen_domain_type;
#else
#define xen_domain_type XEN_NATIVE
#endif
#define xen_domain() (xen_domain_type != XEN_NATIVE)
#define xen_pv_domain() (xen_domain() && \
xen_domain_type == XEN_PV_DOMAIN)
#define xen_hvm_domain() (xen_domain() && \
xen_domain_type == XEN_HVM_DOMAIN)
#ifdef CONFIG_XEN_DOM0
#include <xen/interface/xen.h>
#include <asm/xen/hypervisor.h>
#define xen_initial_domain() (xen_domain() && \
xen_start_info && xen_start_info->flags & SIF_INITDOMAIN)
#else /* !CONFIG_XEN_DOM0 */
#define xen_initial_domain() (0)
#endif /* CONFIG_XEN_DOM0 */
#ifdef CONFIG_XEN_PVH
/* This functionality exists only for x86. The XEN_PVHVM support exists
* only in x86 world - hence on ARM it will be always disabled.
* N.B. ARM guests are neither PV nor HVM nor PVHVM.
* It's a bit like PVH but is different also (it's further towards the H
* end of the spectrum than even PVH).
*/
#include <xen/features.h>
#define xen_pvh_domain() (xen_pv_domain() && \
xen_feature(XENFEAT_auto_translated_physmap) && \
xen_have_vector_callback)
#else
#define xen_pvh_domain() (0)
#endif
#endif /* _XEN_XEN_H */
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