1 /****************************************************************************** 2 * arch-x86_64.h 3 * 4 * Guest OS interface to x86 64-bit Xen. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a copy 7 * of this software and associated documentation files (the "Software"), to 8 * deal in the Software without restriction, including without limitation the 9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom the Software is 11 * furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Copyright (c) 2004-2006, K A Fraser 25 */ 26 27 #include "arch-x86/xen.h" 28 29 /* 30 * ` enum neg_errnoval 31 * ` HYPERVISOR_set_callbacks(unsigned long event_selector, 32 * ` unsigned long event_address, 33 * ` unsigned long failsafe_selector, 34 * ` unsigned long failsafe_address); 35 * ` 36 * Register for callbacks on events. When an event (from an event 37 * channel) occurs, event_address is used as the value of eip. 38 * 39 * A similar callback occurs if the segment selectors are invalid. 40 * failsafe_address is used as the value of eip. 41 * 42 * On x86_64, event_selector and failsafe_selector are ignored (???). 43 */ 44