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Keir Fraser
796b445b00
instead of unnecessarily going through the hypervisor. Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
/******************************************************************************
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* hypervisor.h
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*
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* Hypervisor handling.
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*
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*
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* Copyright (c) 2002, K A Fraser
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* Copyright (c) 2005, Grzegorz Milos
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* Updates: Aravindh Puthiyaparambil <aravindh.puthiyaparambil@unisys.com>
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* Updates: Dietmar Hahn <dietmar.hahn@fujitsu-siemens.com> for ia64
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*/
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#ifndef _HYPERVISOR_H_
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#define _HYPERVISOR_H_
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#include <types.h>
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#include <xen/xen.h>
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#if defined(__i386__)
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#include <hypercall-x86_32.h>
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#elif defined(__x86_64__)
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#include <hypercall-x86_64.h>
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#elif defined(__ia64__)
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#include <hypercall-ia64.h>
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#else
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#error "Unsupported architecture"
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#endif
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#include <traps.h>
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/*
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* a placeholder for the start of day information passed up from the hypervisor
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*/
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union start_info_union
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{
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start_info_t start_info;
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char padding[512];
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};
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extern union start_info_union start_info_union;
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#define start_info (start_info_union.start_info)
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/* hypervisor.c */
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void force_evtchn_callback(void);
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void do_hypervisor_callback(struct pt_regs *regs);
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void mask_evtchn(u32 port);
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void unmask_evtchn(u32 port);
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void clear_evtchn(u32 port);
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extern int in_callback;
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#endif /* __HYPERVISOR_H__ */
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