1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 2012 NetApp, Inc. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY NETAPP, INC ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL NETAPP, INC OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29 #ifndef _MEM_H_ 30 #define _MEM_H_ 31 32 #include <sys/linker_set.h> 33 34 struct vcpu; 35 36 typedef int (*mem_func_t)(struct vcpu *vcpu, int dir, uint64_t addr, 37 int size, uint64_t *val, void *arg1, long arg2); 38 39 struct mem_range { 40 const char *name; 41 int flags; 42 mem_func_t handler; 43 void *arg1; 44 long arg2; 45 uint64_t base; 46 uint64_t size; 47 }; 48 #define MEM_F_READ 0x1 49 #define MEM_F_WRITE 0x2 50 #define MEM_F_RW 0x3 51 #define MEM_F_IMMUTABLE 0x4 /* mem_range cannot be unregistered */ 52 53 void init_mem(int ncpu); 54 55 int emulate_mem(struct vcpu *vcpu, struct vm_mmio *mmio); 56 57 int read_mem(struct vcpu *vpu, uint64_t gpa, uint64_t *rval, int size); 58 int register_mem(struct mem_range *memp); 59 int register_mem_fallback(struct mem_range *memp); 60 int unregister_mem(struct mem_range *memp); 61 int write_mem(struct vcpu *vcpu, uint64_t gpa, uint64_t wval, int size); 62 63 #endif /* _MEM_H_ */ 64