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