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nvmm.h revision 1.3 
      1 /*	$NetBSD: nvmm.h,v 1.3 2019/01/24 13:05:59 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 	uint64_t npc;
     79 };
     80 
     81 enum nvmm_exit_io_type {
     82 	NVMM_EXIT_IO_IN,
     83 	NVMM_EXIT_IO_OUT
     84 };
     85 
     86 struct nvmm_exit_io {
     87 	enum nvmm_exit_io_type type;
     88 	uint16_t port;
     89 	int seg;
     90 	uint8_t address_size;
     91 	uint8_t operand_size;
     92 	bool rep;
     93 	bool str;
     94 	uint64_t npc;
     95 };
     96 
     97 enum nvmm_exit_msr_type {
     98 	NVMM_EXIT_MSR_RDMSR,
     99 	NVMM_EXIT_MSR_WRMSR
    100 };
    101 
    102 struct nvmm_exit_msr {
    103 	enum nvmm_exit_msr_type type;
    104 	uint64_t msr;
    105 	uint64_t val;
    106 	uint64_t npc;
    107 };
    108 
    109 struct nvmm_exit_insn {
    110 	uint64_t npc;
    111 };
    112 
    113 struct nvmm_exit {
    114 	enum nvmm_exit_reason reason;
    115 	union {
    116 		struct nvmm_exit_memory mem;
    117 		struct nvmm_exit_io io;
    118 		struct nvmm_exit_msr msr;
    119 		struct nvmm_exit_insn insn;
    120 	} u;
    121 	uint64_t exitstate[8];
    122 };
    123 
    124 enum nvmm_event_type {
    125 	NVMM_EVENT_INTERRUPT_HW,
    126 	NVMM_EVENT_INTERRUPT_SW,
    127 	NVMM_EVENT_EXCEPTION
    128 };
    129 
    130 struct nvmm_event {
    131 	enum nvmm_event_type type;
    132 	uint64_t vector;
    133 	union {
    134 		/* NVMM_EVENT_INTERRUPT_HW */
    135 		uint8_t prio;
    136 
    137 		/* NVMM_EVENT_EXCEPTION */
    138 		uint64_t error;
    139 	} u;
    140 };
    141 
    142 #define NVMM_CAPABILITY_VERSION		1
    143 
    144 struct nvmm_capability {
    145 	uint64_t version;
    146 	uint64_t state_size;
    147 	uint64_t max_machines;
    148 	uint64_t max_vcpus;
    149 	uint64_t max_ram;
    150 	union {
    151 		struct {
    152 			uint64_t xcr0_mask;
    153 			uint64_t mxcsr_mask;
    154 			uint64_t conf_cpuid_maxops;
    155 		} x86;
    156 		uint64_t rsvd[8];
    157 	} u;
    158 };
    159 
    160 #endif
    161