/* $NetBSD: hypervisor.h,v 1.27 2008/09/16 19:55:32 bouyer Exp $ */ /* * Copyright (c) 2006 Manuel Bouyer. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Manuel Bouyer. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ /* * * Communication to/from hypervisor. * * Copyright (c) 2002-2004, K A Fraser * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this source file (the "Software"), to deal in the Software without * restriction, including without limitation the rights to use, copy, modify, * merge, publish, distribute, sublicense, and/or sell copies of the Software, * and to permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS * IN THE SOFTWARE. */ #ifndef _XEN_HYPERVISOR_H_ #define _XEN_HYPERVISOR_H_ #include "opt_xen.h" struct hypervisor_attach_args { const char *haa_busname; }; struct xencons_attach_args { const char *xa_device; }; struct xen_npx_attach_args { const char *xa_device; }; #define u8 uint8_t #define u16 uint16_t #define u32 uint32_t #define u64 uint64_t #define s8 int8_t #define s16 int16_t #define s32 int32_t #define s64 int64_t #ifdef XEN3 #include <xen/xen3-public/xen.h> #include <xen/xen3-public/sched.h> #include <xen/xen3-public/dom0_ops.h> #include <xen/xen3-public/event_channel.h> #include <xen/xen3-public/physdev.h> #include <xen/xen3-public/memory.h> #include <xen/xen3-public/io/netif.h> #include <xen/xen3-public/io/blkif.h> #else #include <xen/xen-public/xen.h> #include <xen/xen-public/dom0_ops.h> #include <xen/xen-public/event_channel.h> #include <xen/xen-public/physdev.h> #include <xen/xen-public/io/domain_controller.h> #include <xen/xen-public/io/netif.h> #include <xen/xen-public/io/blkif.h> #endif #include <machine/hypercalls.h> #undef u8 #undef u16 #undef u32 #undef u64 #undef s8 #undef s16 #undef s32 #undef s64 /* * a placeholder for the start of day information passed up from the hypervisor */ union start_info_union { start_info_t start_info; char padding[512]; }; extern union start_info_union start_info_union; #define xen_start_info (start_info_union.start_info) /* For use in guest OSes. */ extern volatile shared_info_t *HYPERVISOR_shared_info; /* hypervisor.c */ struct intrframe; void do_hypervisor_callback(struct intrframe *regs); void hypervisor_enable_event(unsigned int); /* hypervisor_machdep.c */ void hypervisor_unmask_event(unsigned int); void hypervisor_mask_event(unsigned int); void hypervisor_clear_event(unsigned int); void hypervisor_enable_ipl(unsigned int); void hypervisor_set_ipending(uint32_t, int, int); void hypervisor_machdep_attach(void); /* * Force a proper event-channel callback from Xen after clearing the * callback mask. We do this in a very simple manner, by making a call * down into Xen. The pending flag will be checked by Xen on return. */ static __inline void hypervisor_force_callback(void) { #ifdef XEN3 (void)HYPERVISOR_xen_version(0, (void*)0); #else (void)HYPERVISOR_xen_version(0); #endif } __attribute__((no_instrument_function)) /* used by mcount */ static __inline void hypervisor_notify_via_evtchn(unsigned int port) { evtchn_op_t op; op.cmd = EVTCHNOP_send; #ifdef XEN3 op.u.send.port = port; #else op.u.send.local_port = port; #endif (void)HYPERVISOR_event_channel_op(&op); } #endif /* _XEN_HYPERVISOR_H_ */