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nvmm.h revision 1.3 
      1 /*	$NetBSD: nvmm.h,v 1.3 2018/12/15 13:39:43 maxv Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2018 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Maxime Villard.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _LIBNVMM_H_
     33 #define _LIBNVMM_H_
     34 
     35 #include <stdint.h>
     36 #include <stdbool.h>
     37 
     38 #include <dev/nvmm/nvmm.h>
     39 #include <dev/nvmm/nvmm_ioctl.h>
     40 #ifdef __x86_64__
     41 #include <dev/nvmm/x86/nvmm_x86.h>
     42 #endif
     43 
     44 struct nvmm_machine {
     45 	nvmm_machid_t machid;
     46 	void *areas; /* opaque */
     47 };
     48 
     49 struct nvmm_io {
     50 	uint64_t port;
     51 	bool in;
     52 	size_t size;
     53 	uint8_t data[8];
     54 };
     55 
     56 struct nvmm_mem {
     57 	gvaddr_t gva;
     58 	gpaddr_t gpa;
     59 	bool write;
     60 	size_t size;
     61 	uint8_t data[8];
     62 };
     63 
     64 #define NVMM_PROT_READ		0x01
     65 #define NVMM_PROT_WRITE		0x02
     66 #define NVMM_PROT_EXEC		0x04
     67 #define NVMM_PROT_USER		0x08
     68 #define NVMM_PROT_ALL		0x0F
     69 typedef uint64_t nvmm_prot_t;
     70 
     71 int nvmm_capability(struct nvmm_capability *);
     72 
     73 int nvmm_machine_create(struct nvmm_machine *);
     74 int nvmm_machine_destroy(struct nvmm_machine *);
     75 int nvmm_machine_configure(struct nvmm_machine *, uint64_t, void *);
     76 
     77 int nvmm_vcpu_create(struct nvmm_machine *, nvmm_cpuid_t);
     78 int nvmm_vcpu_destroy(struct nvmm_machine *, nvmm_cpuid_t);
     79 int nvmm_vcpu_setstate(struct nvmm_machine *, nvmm_cpuid_t, void *, uint64_t);
     80 int nvmm_vcpu_getstate(struct nvmm_machine *, nvmm_cpuid_t, void *, uint64_t);
     81 int nvmm_vcpu_inject(struct nvmm_machine *, nvmm_cpuid_t, struct nvmm_event *);
     82 int nvmm_vcpu_run(struct nvmm_machine *, nvmm_cpuid_t, struct nvmm_exit *);
     83 
     84 int nvmm_gpa_map(struct nvmm_machine *, uintptr_t, gpaddr_t, size_t, int);
     85 int nvmm_gpa_unmap(struct nvmm_machine *, uintptr_t, gpaddr_t, size_t);
     86 int nvmm_hva_map(struct nvmm_machine *, uintptr_t, size_t);
     87 int nvmm_hva_unmap(struct nvmm_machine *, uintptr_t, size_t);
     88 
     89 int nvmm_gva_to_gpa(struct nvmm_machine *, nvmm_cpuid_t, gvaddr_t, gpaddr_t *,
     90     nvmm_prot_t *);
     91 int nvmm_gpa_to_hva(struct nvmm_machine *, gpaddr_t, uintptr_t *);
     92 
     93 int nvmm_assist_io(struct nvmm_machine *, nvmm_cpuid_t, struct nvmm_exit *,
     94     void (*)(struct nvmm_io *));
     95 int nvmm_assist_mem(struct nvmm_machine *, nvmm_cpuid_t, struct nvmm_exit *,
     96     void (*)(struct nvmm_mem *));
     97 
     98 #endif /* _LIBNVMM_H_ */
     99