168 lines
5.2 KiB
C
168 lines
5.2 KiB
C
/* $NetBSD: hypervisor.h,v 1.30 2009/07/29 12:02:06 cegger Exp $ */
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/*
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* Copyright (c) 2006 Manuel Bouyer.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Manuel Bouyer.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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/*
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*
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* Communication to/from hypervisor.
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*
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* Copyright (c) 2002-2004, K A Fraser
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this source file (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy, modify,
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* merge, publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#ifndef _XEN_HYPERVISOR_H_
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#define _XEN_HYPERVISOR_H_
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#include "opt_xen.h"
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struct hypervisor_attach_args {
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const char *haa_busname;
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};
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struct xencons_attach_args {
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const char *xa_device;
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};
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struct xen_npx_attach_args {
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const char *xa_device;
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};
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#define u8 uint8_t
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#define u16 uint16_t
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#define u32 uint32_t
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#define u64 uint64_t
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#define s8 int8_t
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#define s16 int16_t
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#define s32 int32_t
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#define s64 int64_t
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#include <xen/xen3-public/xen.h>
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#include <xen/xen3-public/sched.h>
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#include <xen/xen3-public/platform.h>
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#if __XEN_INTERFACE_VERSION__ < 0x00030204
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#include <xen/xen3-public/dom0_ops.h>
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#endif
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#include <xen/xen3-public/event_channel.h>
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#include <xen/xen3-public/physdev.h>
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#include <xen/xen3-public/memory.h>
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#include <xen/xen3-public/io/netif.h>
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#include <xen/xen3-public/io/blkif.h>
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#include <machine/hypercalls.h>
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#undef u8
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#undef u16
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#undef u32
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#undef u64
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#undef s8
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#undef s16
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#undef s32
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#undef s64
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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 xen_start_info (start_info_union.start_info)
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/* For use in guest OSes. */
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extern volatile shared_info_t *HYPERVISOR_shared_info;
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/* Structural guest handles introduced in 0x00030201. */
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#if __XEN_INTERFACE_VERSION__ >= 0x00030201
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#define xenguest_handle(hnd) (hnd).p
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#else
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#define xenguest_handle(hnd) hnd
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#endif
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/* hypervisor.c */
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struct intrframe;
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void do_hypervisor_callback(struct intrframe *regs);
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void hypervisor_enable_event(unsigned int);
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/* hypervisor_machdep.c */
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void hypervisor_unmask_event(unsigned int);
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void hypervisor_mask_event(unsigned int);
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void hypervisor_clear_event(unsigned int);
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void hypervisor_enable_ipl(unsigned int);
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void hypervisor_set_ipending(uint32_t, int, int);
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void hypervisor_machdep_attach(void);
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/*
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* Force a proper event-channel callback from Xen after clearing the
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* callback mask. We do this in a very simple manner, by making a call
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* down into Xen. The pending flag will be checked by Xen on return.
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*/
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static __inline void hypervisor_force_callback(void)
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{
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(void)HYPERVISOR_xen_version(0, (void*)0);
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} __attribute__((no_instrument_function)) /* used by mcount */
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static __inline void
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hypervisor_notify_via_evtchn(unsigned int port)
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{
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evtchn_op_t op;
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op.cmd = EVTCHNOP_send;
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op.u.send.port = port;
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(void)HYPERVISOR_event_channel_op(&op);
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}
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#endif /* _XEN_HYPERVISOR_H_ */
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