1 /*- 2 * Copyright (c) 2023-2025 Ruslan Bukin <br@bsdpad.com> 3 * 4 * This work was supported by Innovate UK project 105694, "Digital Security 5 * by Design (DSbD) Technology Platform Prototype". 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 THE AUTHOR AND CONTRIBUTORS ``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 THE AUTHOR 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 _DEV_HWT_HWT_VM_H_ 30 #define _DEV_HWT_HWT_VM_H_ 31 32 struct hwt_vm { 33 vm_page_t *pages; 34 int npages; 35 vm_object_t obj; 36 vm_offset_t kvaddr; 37 struct cdev *cdev; 38 39 struct hwt_context *ctx; 40 struct hwt_cpu *cpu; /* cpu mode only. */ 41 struct hwt_thread *thr; /* thr mode only. */ 42 }; 43 44 int hwt_vm_alloc(size_t bufsize, int kva_req, char *path, struct hwt_vm **vm0); 45 void hwt_vm_free(struct hwt_vm *vm); 46 47 #endif /* !_DEV_HWT_HWT_VM_H_ */ 48