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nvmm.h revision 1.4 
      1 /*	$NetBSD: nvmm.h,v 1.4 2019/01/26 15:12:20 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 _NVMM_H_
     33 #define _NVMM_H_
     34 
     35 #include <sys/types.h>
     36 
     37 #ifndef _KERNEL
     38 #include <stdbool.h>
     39 #endif
     40 
     41 typedef uint64_t	gpaddr_t;
     42 typedef uint64_t	gvaddr_t;
     43 
     44 typedef uint32_t	nvmm_machid_t;
     45 typedef uint32_t	nvmm_cpuid_t;
     46 
     47 enum nvmm_exit_reason {
     48 	NVMM_EXIT_NONE		= 0x0000000000000000,
     49 
     50 	/* General. */
     51 	NVMM_EXIT_MEMORY	= 0x0000000000000001,
     52 	NVMM_EXIT_IO		= 0x0000000000000002,
     53 	NVMM_EXIT_MSR		= 0x0000000000000003,
     54 	NVMM_EXIT_INT_READY	= 0x0000000000000004,
     55 	NVMM_EXIT_NMI_READY	= 0x0000000000000005,
     56 	NVMM_EXIT_HALTED	= 0x0000000000000006,
     57 	NVMM_EXIT_SHUTDOWN	= 0x0000000000000007,
     58 
     59 	/* Instructions (x86). */
     60 	NVMM_EXIT_MONITOR	= 0x0000000000001000,
     61 	NVMM_EXIT_MWAIT		= 0x0000000000001001,
     62 	NVMM_EXIT_MWAIT_COND	= 0x0000000000001002,
     63 
     64 	NVMM_EXIT_INVALID	= 0xFFFFFFFFFFFFFFFF
     65 };
     66 
     67 enum nvmm_exit_memory_perm {
     68 	NVMM_EXIT_MEMORY_READ,
     69 	NVMM_EXIT_MEMORY_WRITE,
     70 	NVMM_EXIT_MEMORY_EXEC
     71 };
     72 
     73 struct nvmm_exit_memory {
     74 	enum nvmm_exit_memory_perm perm;
     75 	gpaddr_t gpa;
     76 	uint8_t inst_len;
     77 	uint8_t inst_bytes[15];
     78 };
     79 
     80 enum nvmm_exit_io_type {
     81 	NVMM_EXIT_IO_IN,
     82 	NVMM_EXIT_IO_OUT
     83 };
     84 
     85 struct nvmm_exit_io {
     86 	enum nvmm_exit_io_type type;
     87 	uint16_t port;
     88 	int seg;
     89 	uint8_t address_size;
     90 	uint8_t operand_size;
     91 	bool rep;
     92 	bool str;
     93 	uint64_t npc;
     94 };
     95 
     96 enum nvmm_exit_msr_type {
     97 	NVMM_EXIT_MSR_RDMSR,
     98 	NVMM_EXIT_MSR_WRMSR
     99 };
    100 
    101 struct nvmm_exit_msr {
    102 	enum nvmm_exit_msr_type type;
    103 	uint64_t msr;
    104 	uint64_t val;
    105 	uint64_t npc;
    106 };
    107 
    108 struct nvmm_exit_insn {
    109 	uint64_t npc;
    110 };
    111 
    112 struct nvmm_exit {
    113 	enum nvmm_exit_reason reason;
    114 	union {
    115 		struct nvmm_exit_memory mem;
    116 		struct nvmm_exit_io io;
    117 		struct nvmm_exit_msr msr;
    118 		struct nvmm_exit_insn insn;
    119 	} u;
    120 	uint64_t exitstate[8];
    121 };
    122 
    123 enum nvmm_event_type {
    124 	NVMM_EVENT_INTERRUPT_HW,
    125 	NVMM_EVENT_INTERRUPT_SW,
    126 	NVMM_EVENT_EXCEPTION
    127 };
    128 
    129 struct nvmm_event {
    130 	enum nvmm_event_type type;
    131 	uint64_t vector;
    132 	union {
    133 		/* NVMM_EVENT_INTERRUPT_HW */
    134 		uint8_t prio;
    135 
    136 		/* NVMM_EVENT_EXCEPTION */
    137 		uint64_t error;
    138 	} u;
    139 };
    140 
    141 #define NVMM_CAPABILITY_VERSION		1
    142 
    143 struct nvmm_capability {
    144 	uint64_t version;
    145 	uint64_t state_size;
    146 	uint64_t max_machines;
    147 	uint64_t max_vcpus;
    148 	uint64_t max_ram;
    149 	union {
    150 		struct {
    151 			uint64_t xcr0_mask;
    152 			uint64_t mxcsr_mask;
    153 			uint64_t conf_cpuid_maxops;
    154 		} x86;
    155 		uint64_t rsvd[8];
    156 	} u;
    157 };
    158 
    159 #endif
    160