Rev 3770 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 3743 | rimsky | 1 | /* |
| 2 | * Copyright (c) 2008 Pavel Rimsky |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 13 | * documentation and/or other materials provided with the distribution. |
||
| 14 | * - The name of the author may not be used to endorse or promote products |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
||
| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
||
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
||
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
||
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | /** @addtogroup sparc64 |
||
| 30 | * @{ |
||
| 31 | */ |
||
| 32 | /** |
||
| 33 | * @file |
||
| 34 | * @brief Macros, constants and functions needed to perform a call to the |
||
| 35 | * hypervisor API. For details and terminology see this document: |
||
| 36 | * UltraSPARC Virtual Machine Specification (The Hypervisor API |
||
| 37 | * specification for Logical Domains). |
||
| 38 | * |
||
| 39 | */ |
||
| 40 | |||
| 41 | #ifndef KERN_sparc64_sun4v_HYPERCALL_H_ |
||
| 42 | #define KERN_sparc64_sun4v_HYPERCALL_H_ |
||
| 43 | |||
| 44 | /* SW trap numbers for hyperfast traps */ |
||
| 45 | #define FAST_TRAP 0x80 |
||
| 46 | #define MMU_MAP_ADDR 0x83 |
||
| 47 | #define MMU_UNMAP_ADDR 0x84 |
||
| 48 | |||
| 49 | /* function codes for fast traps */ |
||
| 50 | #define MACH_DESC 0x01 |
||
| 51 | #define CPU_START 0x10 |
||
| 52 | #define CPU_STOP 0x11 |
||
| 53 | #define CPU_YIELD 0x12 |
||
| 54 | #define CPU_MYID 0x16 |
||
| 55 | #define CPU_STATE 0x17 |
||
| 56 | #define CPU_SET_RTBA 0x18 |
||
| 57 | #define CPU_GET_RTBA 0x19 |
||
| 58 | #define MMU_TSB_CTX0 0x20 |
||
| 59 | #define MMU_TSB_CTXNON0 0x21 |
||
| 60 | #define MMU_DEMAP_PAGE 0x22 |
||
| 61 | #define MMU_DEMAP_CTX 0x23 |
||
| 62 | #define MMU_DEMAP_ALL 0x24 |
||
| 63 | #define MMU_MAP_PERM_ADDR 0x25 |
||
| 64 | #define MMU_FAULT_AREA_CONF 0x26 |
||
| 65 | #define MMU_ENABLE 0x27 |
||
| 66 | #define MMU_UNMAP_PERM_ADDR 0x28 |
||
| 67 | #define MMU_TSB_CTX0_INFO 0x29 |
||
| 68 | #define MMU_TSB_CTXNON0_INFO 0x2a |
||
| 69 | #define MMU_FAULT_AREA_INFO 0x2b |
||
| 70 | #define CPU_MONDO_SEND 0x42 |
||
| 71 | #define CONS_GETCHAR 0x60 |
||
| 72 | #define CONS_PUTCHAR 0x61 |
||
| 73 | |||
| 3770 | rimsky | 74 | |
| 75 | /* return codes */ |
||
| 76 | #define EOK 0 /**< Successful return */ |
||
| 77 | #define ENOCPU 1 /**< Invalid CPU id */ |
||
| 78 | #define ENORADDR 2 /**< Invalid real address */ |
||
| 79 | #define ENOINTR 3 /**< Invalid interrupt id */ |
||
| 80 | #define EBADPGSZ 4 /**< Invalid pagesize encoding */ |
||
| 81 | #define EBADTSB 5 /**< Invalid TSB description */ |
||
| 82 | #define EINVAL 6 /**< Invalid argument */ |
||
| 83 | #define EBADTRAP 7 /**< Invalid function number */ |
||
| 84 | #define EBADALIGN 8 /**< Invalid address alignment */ |
||
| 85 | #define EWOULDBLOCK 9 /**< Cannot complete operation without blocking */ |
||
| 86 | #define ENOACCESS 10 /**< No access to specified resource */ |
||
| 87 | #define EIO 11 /**< I/O Error */ |
||
| 88 | #define ECPUERROR 12 /**< CPU is in error state */ |
||
| 89 | #define ENOTSUPPORTED 13 /**< Function not supported */ |
||
| 90 | #define ENOMAP 14 /**< No mapping found */ |
||
| 91 | #define ETOOMANY 15 /**< Too many items specified / limit reached */ |
||
| 92 | #define ECHANNEL 16 /**< Invalid LDC channel */ |
||
| 93 | #define EBUSY 17 /**< Operation failed as resource is otherwise busy */ |
||
| 94 | |||
| 95 | |||
| 3743 | rimsky | 96 | /** |
| 97 | * Performs a hyperfast hypervisor API call from the assembly language code. |
||
| 98 | * Expects the registers %o1-%o4 are properly filled with the arguments of the |
||
| 99 | * call. |
||
| 100 | * |
||
| 101 | * @param function_number hyperfast call function number |
||
| 102 | */ |
||
| 103 | #define __HYPERCALL_FAST(function_number) \ |
||
| 104 | set function_number, %o5; \ |
||
| 105 | ta FAST_TRAP; |
||
| 106 | |||
| 107 | /** |
||
| 108 | * Performs a fast hypervisor API call from the assembly language code. |
||
| 109 | * Expects the registers %o1-%o4 are properly filled with the arguments of the |
||
| 110 | * call. |
||
| 111 | * |
||
| 112 | * @param sw_trap_number software trap number |
||
| 113 | */ |
||
| 114 | #define __HYPERCALL_HYPERFAST(sw_trap_number) \ |
||
| 115 | ta (sw_trap_number); |
||
| 116 | |||
| 117 | |||
| 118 | #ifndef __ASM__ |
||
| 119 | |||
| 3783 | rimsky | 120 | #include <typedefs.h> |
| 121 | #include <arch/types.h> |
||
| 122 | |||
| 3743 | rimsky | 123 | /* |
| 124 | * Macros to be used from the C-language code; __hypercall_fastN performs |
||
| 125 | * a fast hypervisor API call taking exactly N arguments. |
||
| 126 | */ |
||
| 127 | |||
| 128 | #define __hypercall_fast0(function_number) \ |
||
| 129 | __hypercall_fast(0, 0, 0, 0, 0, function_number) |
||
| 130 | #define __hypercall_fast1(function_number, p1) \ |
||
| 131 | __hypercall_fast(p1, 0, 0, 0, 0, function_number) |
||
| 132 | #define __hypercall_fast2(function_number, p1, p2) \ |
||
| 133 | __hypercall_fast(p1, p2, 0, 0, 0, function_number) |
||
| 134 | #define __hypercall_fast3(function_number, p1, p2, p3) \ |
||
| 135 | __hypercall_fast(p1, p2, p3, 0, 0, function_number) |
||
| 136 | #define __hypercall_fast4(function_number, p1, p2, p3, p4) \ |
||
| 137 | __hypercall_fast(p1, p2, p3, p4, 0, function_number) |
||
| 138 | #define __hypercall_fast5(function_number, p1, p2, p3, p4, p5) \ |
||
| 139 | __hypercall_fast(p1, p2, p3, p4, p5, function_number) |
||
| 140 | |||
| 141 | /** |
||
| 3770 | rimsky | 142 | * Performs a fast hypervisor API call which can returns a value. |
| 3743 | rimsky | 143 | * |
| 144 | * @param p1 the 1st argument of the hypervisor API call |
||
| 145 | * @param p2 the 2nd argument of the hypervisor API call |
||
| 146 | * @param p3 the 3rd argument of the hypervisor API call |
||
| 147 | * @param p4 the 4th argument of the hypervisor API call |
||
| 148 | * @param p5 the 5th argument of the hypervisor API call |
||
| 149 | * @param function_number function number of the call |
||
| 3770 | rimsky | 150 | * @param ret1 pointer to an address where the return value |
| 151 | * of the hypercall should be saved, or NULL |
||
| 152 | * @return error status |
||
| 3743 | rimsky | 153 | */ |
| 154 | static inline uint64_t |
||
| 3770 | rimsky | 155 | __hypercall_fast_ret1(const uint64_t p1, const uint64_t p2, const uint64_t p3, |
| 156 | const uint64_t p4, const uint64_t p5, const uint64_t function_number, |
||
| 157 | uint64_t * const ret1) |
||
| 3743 | rimsky | 158 | { |
| 159 | register uint64_t a6 asm("o5") = function_number; |
||
| 160 | register uint64_t a1 asm("o0") = p1; |
||
| 161 | register uint64_t a2 asm("o1") = p2; |
||
| 162 | register uint64_t a3 asm("o2") = p3; |
||
| 163 | register uint64_t a4 asm("o3") = p4; |
||
| 164 | register uint64_t a5 asm("o4") = p5; |
||
| 165 | |||
| 166 | asm volatile ( |
||
| 167 | "ta %7\n" |
||
| 168 | : "=r" (a1) |
||
| 169 | : "r" (a1), "r" (a2), "r" (a3), "r" (a4), "r" (a5), "r" (a6), |
||
| 170 | "i" (FAST_TRAP) |
||
| 171 | : "memory" |
||
| 172 | ); |
||
| 173 | |||
| 3770 | rimsky | 174 | if (ret1 != NULL) |
| 175 | *ret1 = a2; |
||
| 3743 | rimsky | 176 | return a1; |
| 177 | } |
||
| 178 | |||
| 179 | /** |
||
| 3770 | rimsky | 180 | * Performs a fast hypervisor API call which return no value except for the |
| 181 | * error status. |
||
| 182 | * |
||
| 183 | * @param p1 the 1st argument of the hypervisor API call |
||
| 184 | * @param p2 the 2nd argument of the hypervisor API call |
||
| 185 | * @param p3 the 3rd argument of the hypervisor API call |
||
| 186 | * @param p4 the 4th argument of the hypervisor API call |
||
| 187 | * @param p5 the 5th argument of the hypervisor API call |
||
| 188 | * @param function_number function number of the call |
||
| 189 | * @return error status |
||
| 190 | */ |
||
| 191 | static inline uint64_t |
||
| 192 | __hypercall_fast(const uint64_t p1, const uint64_t p2, const uint64_t p3, |
||
| 193 | const uint64_t p4, const uint64_t p5, const uint64_t function_number) |
||
| 194 | { |
||
| 195 | return __hypercall_fast_ret1(p1, p2, p3, p4, p5, function_number, |
||
| 196 | NULL); |
||
| 197 | } |
||
| 198 | |||
| 199 | /** |
||
| 3743 | rimsky | 200 | * Performs a hyperfast hypervisor API call. |
| 201 | * |
||
| 202 | * @param p1 the 1st argument of the hypervisor API call |
||
| 203 | * @param p2 the 2nd argument of the hypervisor API call |
||
| 204 | * @param p3 the 3rd argument of the hypervisor API call |
||
| 205 | * @param p4 the 4th argument of the hypervisor API call |
||
| 206 | * @param p5 the 5th argument of the hypervisor API call |
||
| 207 | * @param sw_trap_number software trap number |
||
| 208 | */ |
||
| 209 | static inline uint64_t |
||
| 210 | __hypercall_hyperfast(const uint64_t p1, const uint64_t p2, const uint64_t p3, |
||
| 211 | const uint64_t p4, const uint64_t p5, const uint64_t sw_trap_number) |
||
| 212 | { |
||
| 213 | register uint64_t a1 asm("o0") = p1; |
||
| 214 | register uint64_t a2 asm("o1") = p2; |
||
| 215 | register uint64_t a3 asm("o2") = p3; |
||
| 216 | register uint64_t a4 asm("o3") = p4; |
||
| 217 | register uint64_t a5 asm("o4") = p5; |
||
| 218 | |||
| 219 | asm volatile ( |
||
| 220 | "ta %6\n" |
||
| 221 | : "=r" (a1) |
||
| 222 | : "r" (a1), "r" (a2), "r" (a3), "r" (a4), "r" (a5), |
||
| 223 | "i" (sw_trap_number) |
||
| 224 | : "memory" |
||
| 225 | ); |
||
| 226 | |||
| 227 | return a1; |
||
| 228 | } |
||
| 229 | |||
| 230 | #endif /* ASM */ |
||
| 231 | |||
| 232 | #endif |
||
| 233 | |||
| 234 | /** @} |
||
| 235 | */ |