| 1 | /* $Id: DevPcArch.c 2981 2007-06-01 16:01:28Z vboxsync $ */
|
|---|
| 2 | /** @file
|
|---|
| 3 | * PC Architechture Device.
|
|---|
| 4 | */
|
|---|
| 5 |
|
|---|
| 6 | /*
|
|---|
| 7 | * Copyright (C) 2006-2007 innotek GmbH
|
|---|
| 8 | *
|
|---|
| 9 | * This file is part of VirtualBox Open Source Edition (OSE), as
|
|---|
| 10 | * available from http://www.virtualbox.org. This file is free software;
|
|---|
| 11 | * you can redistribute it and/or modify it under the terms of the GNU
|
|---|
| 12 | * General Public License as published by the Free Software Foundation,
|
|---|
| 13 | * in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
|
|---|
| 14 | * distribution. VirtualBox OSE is distributed in the hope that it will
|
|---|
| 15 | * be useful, but WITHOUT ANY WARRANTY of any kind.
|
|---|
| 16 | *
|
|---|
| 17 | * If you received this file as part of a commercial VirtualBox
|
|---|
| 18 | * distribution, then only the terms of your commercial VirtualBox
|
|---|
| 19 | * license agreement apply instead of the previous paragraph.
|
|---|
| 20 | */
|
|---|
| 21 |
|
|---|
| 22 | /*******************************************************************************
|
|---|
| 23 | * Header Files *
|
|---|
| 24 | *******************************************************************************/
|
|---|
| 25 | #define LOG_GROUP LOG_GROUP_DEV_PC_ARCH
|
|---|
| 26 | #include <VBox/pdm.h>
|
|---|
| 27 | #include <VBox/mm.h>
|
|---|
| 28 |
|
|---|
| 29 | #include <VBox/log.h>
|
|---|
| 30 | #include <iprt/assert.h>
|
|---|
| 31 | #include <VBox/err.h>
|
|---|
| 32 |
|
|---|
| 33 | #include <string.h>
|
|---|
| 34 |
|
|---|
| 35 | #include "Builtins.h"
|
|---|
| 36 |
|
|---|
| 37 |
|
|---|
| 38 | /*******************************************************************************
|
|---|
| 39 | * Structures and Typedefs *
|
|---|
| 40 | *******************************************************************************/
|
|---|
| 41 |
|
|---|
| 42 | /**
|
|---|
| 43 | * PC Bios instance data structure.
|
|---|
| 44 | */
|
|---|
| 45 | typedef struct DEVPCARCH
|
|---|
| 46 | {
|
|---|
| 47 | /** Pointer back to the device instance. */
|
|---|
| 48 | PPDMDEVINS pDevIns;
|
|---|
| 49 | } DEVPCARCH, *PDEVPCARCH;
|
|---|
| 50 |
|
|---|
| 51 |
|
|---|
| 52 |
|
|---|
| 53 | /**
|
|---|
| 54 | * Port I/O Handler for math coprocessor IN operations.
|
|---|
| 55 | *
|
|---|
| 56 | * @returns VBox status code.
|
|---|
| 57 | *
|
|---|
| 58 | * @param pDevIns The device instance.
|
|---|
| 59 | * @param pvUser User argument - ignored.
|
|---|
| 60 | * @param uPort Port number used for the IN operation.
|
|---|
| 61 | * @param pu32 Where to store the result.
|
|---|
| 62 | * @param cb Number of bytes read.
|
|---|
| 63 | */
|
|---|
| 64 | static DECLCALLBACK(int) pcarchIOPortFPURead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb)
|
|---|
| 65 | {
|
|---|
| 66 | int rc;
|
|---|
| 67 | NOREF(pvUser); NOREF(pDevIns); NOREF(pu32);
|
|---|
| 68 | rc = PDMDeviceDBGFStop(pDevIns, PDM_SRC_POS, "Port=%#x cb=%d\n", Port, cb);
|
|---|
| 69 | if (rc == VINF_SUCCESS)
|
|---|
| 70 | rc = VERR_IOM_IOPORT_UNUSED;
|
|---|
| 71 | return rc;
|
|---|
| 72 | }
|
|---|
| 73 |
|
|---|
| 74 | /**
|
|---|
| 75 | * Port I/O Handler for math coprocessor OUT operations.
|
|---|
| 76 | *
|
|---|
| 77 | * @returns VBox status code.
|
|---|
| 78 | *
|
|---|
| 79 | * @param pDevIns The device instance.
|
|---|
| 80 | * @param pvUser User argument - ignored.
|
|---|
| 81 | * @param uPort Port number used for the IN operation.
|
|---|
| 82 | * @param u32 The value to output.
|
|---|
| 83 | * @param cb The value size in bytes.
|
|---|
| 84 | * @todo Add IGNNE support.
|
|---|
| 85 | */
|
|---|
| 86 | static DECLCALLBACK(int) pcarchIOPortFPUWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
|
|---|
| 87 | {
|
|---|
| 88 | int rc = VINF_SUCCESS;
|
|---|
| 89 | NOREF(pvUser);
|
|---|
| 90 | if (cb == 1)
|
|---|
| 91 | {
|
|---|
| 92 | switch (Port)
|
|---|
| 93 | {
|
|---|
| 94 | /*
|
|---|
| 95 | * Clear busy latch.
|
|---|
| 96 | */
|
|---|
| 97 | case 0xf0:
|
|---|
| 98 | Log2(("PCARCH: FPU Clear busy latch u32=%#x\n", u32));
|
|---|
| 99 | /* This is triggered when booting Knoppix (3.7) */
|
|---|
| 100 | #if 0
|
|---|
| 101 | if (!u32)
|
|---|
| 102 | rc = PDMDeviceDBGFStop(pDevIns, PDM_SRC_POS, "Port=%#x cb=%d u32=%#x\n", Port, cb, u32);
|
|---|
| 103 | #endif
|
|---|
| 104 | /* pDevIns->pDevHlp->pfnPICSetIrq(pDevIns, 13, 0); */
|
|---|
| 105 | break;
|
|---|
| 106 |
|
|---|
| 107 | /* Reset. */
|
|---|
| 108 | case 0xf1:
|
|---|
| 109 | Log2(("PCARCH: FPU Reset cb=%d u32=%#x\n", Port, cb, u32));
|
|---|
| 110 | /** @todo figure out what the difference between FPU ports 0xf0 and 0xf1 are... */
|
|---|
| 111 | /* pDevIns->pDevHlp->pfnPICSetIrq(pDevIns, 13, 0); */
|
|---|
| 112 | break;
|
|---|
| 113 |
|
|---|
| 114 | /* opcode transfers */
|
|---|
| 115 | case 0xf8:
|
|---|
| 116 | case 0xfa:
|
|---|
| 117 | case 0xfc:
|
|---|
| 118 | default:
|
|---|
| 119 | rc = PDMDeviceDBGFStop(pDevIns, PDM_SRC_POS, "Port=%#x cb=%d u32=%#x\n", Port, cb, u32);
|
|---|
| 120 | break;
|
|---|
| 121 | }
|
|---|
| 122 | /* this works better, but probably not entirely correct. */
|
|---|
| 123 | PDMDevHlpISASetIrq(pDevIns, 13, 0);
|
|---|
| 124 | }
|
|---|
| 125 | else
|
|---|
| 126 | rc = PDMDeviceDBGFStop(pDevIns, PDM_SRC_POS, "Port=%#x cb=%d u32=%#x\n", Port, cb, u32);
|
|---|
| 127 | return rc;
|
|---|
| 128 | }
|
|---|
| 129 |
|
|---|
| 130 |
|
|---|
| 131 | /**
|
|---|
| 132 | * Port I/O Handler for PS/2 system control port A IN operations.
|
|---|
| 133 | *
|
|---|
| 134 | * @returns VBox status code.
|
|---|
| 135 | *
|
|---|
| 136 | * @param pDevIns The device instance.
|
|---|
| 137 | * @param pvUser User argument - ignored.
|
|---|
| 138 | * @param uPort Port number used for the IN operation.
|
|---|
| 139 | * @param pu32 Where to store the result.
|
|---|
| 140 | * @param cb Number of bytes read.
|
|---|
| 141 | *
|
|---|
| 142 | * @todo Check if the A20 enable/disable method implemented here in any way
|
|---|
| 143 | * should cooperate with the one implemented in the PS/2 keyboard device.
|
|---|
| 144 | * This probably belongs together in the PS/2 keyboard device (since that
|
|---|
| 145 | * is where the "port B" mentioned by Ralph Brown is implemented).
|
|---|
| 146 | *
|
|---|
| 147 | * @remark Ralph Brown and friends have this to say about this port:
|
|---|
| 148 | *
|
|---|
| 149 | * 0092 RW PS/2 system control port A (port B is at PORT 0061h) (see #P0415)
|
|---|
| 150 | *
|
|---|
| 151 | * Bitfields for PS/2 system control port A:
|
|---|
| 152 | * Bit(s) Description (Table P0415)
|
|---|
| 153 | * 7-6 any bit set to 1 turns activity light on
|
|---|
| 154 | * 5 unused
|
|---|
| 155 | * 4 watchdog timout occurred
|
|---|
| 156 | * 3 =0 RTC/CMOS security lock (on password area) unlocked
|
|---|
| 157 | * =1 CMOS locked (done by POST)
|
|---|
| 158 | * 2 unused
|
|---|
| 159 | * 1 A20 is active
|
|---|
| 160 | * 0 =0 system reset or write
|
|---|
| 161 | * =1 pulse alternate reset pin (high-speed alternate CPU reset)
|
|---|
| 162 | * Notes: once set, bit 3 may only be cleared by a power-on reset
|
|---|
| 163 | * on at least the C&T 82C235, bit 0 remains set through a CPU reset to
|
|---|
| 164 | * allow the BIOS to determine the reset method
|
|---|
| 165 | * on the PS/2 30-286 & "Tortuga" the INT 15h/87h memory copy does
|
|---|
| 166 | * not use this port for A20 control, but instead uses the keyboard
|
|---|
| 167 | * controller (8042). Reportedly this may cause the system to crash
|
|---|
| 168 | * when access to the 8042 is disabled in password server mode
|
|---|
| 169 | * (see #P0398).
|
|---|
| 170 | * SeeAlso: #P0416,#P0417,MSR 00001000h
|
|---|
| 171 | */
|
|---|
| 172 | static DECLCALLBACK(int) pcarchIOPortPS2SysControlPortARead(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t *pu32, unsigned cb)
|
|---|
| 173 | {
|
|---|
| 174 | if (cb == 1)
|
|---|
| 175 | {
|
|---|
| 176 | *pu32 = PDMDevHlpA20IsEnabled(pDevIns) << 1;
|
|---|
| 177 | return VINF_SUCCESS;
|
|---|
| 178 | }
|
|---|
| 179 | return PDMDeviceDBGFStop(pDevIns, PDM_SRC_POS, "Port=%#x cb=%d\n", Port, cb);
|
|---|
| 180 | }
|
|---|
| 181 |
|
|---|
| 182 |
|
|---|
| 183 | /**
|
|---|
| 184 | * Port I/O Handler for PS/2 system control port A OUT operations.
|
|---|
| 185 | *
|
|---|
| 186 | * @returns VBox status code.
|
|---|
| 187 | *
|
|---|
| 188 | * @param pDevIns The device instance.
|
|---|
| 189 | * @param pvUser User argument - ignored.
|
|---|
| 190 | * @param uPort Port number used for the IN operation.
|
|---|
| 191 | * @param u32 The value to output.
|
|---|
| 192 | * @param cb The value size in bytes.
|
|---|
| 193 | * @see Remark and todo of pcarchIOPortPS2SysControlPortARead().
|
|---|
| 194 | */
|
|---|
| 195 | static DECLCALLBACK(int) pcarchIOPortPS2SysControlPortAWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
|
|---|
| 196 | {
|
|---|
| 197 | NOREF(pvUser);
|
|---|
| 198 | if (cb == 1)
|
|---|
| 199 | {
|
|---|
| 200 | /*
|
|---|
| 201 | * Fast reset?
|
|---|
| 202 | */
|
|---|
| 203 | if (u32 & 1)
|
|---|
| 204 | return PDMDevHlpVMReset(pDevIns);
|
|---|
| 205 |
|
|---|
| 206 | /*
|
|---|
| 207 | * A20 is the only thing we care about of the other stuff.
|
|---|
| 208 | */
|
|---|
| 209 | PDMDevHlpA20Set(pDevIns, !!(u32 & 2));
|
|---|
| 210 | return VINF_SUCCESS;
|
|---|
| 211 | }
|
|---|
| 212 | return PDMDeviceDBGFStop(pDevIns, PDM_SRC_POS, "Port=%#x cb=%d u32=%#x\n", Port, cb, u32);
|
|---|
| 213 | }
|
|---|
| 214 |
|
|---|
| 215 |
|
|---|
| 216 | /**
|
|---|
| 217 | * Construct a device instance for a VM.
|
|---|
| 218 | *
|
|---|
| 219 | * @returns VBox status.
|
|---|
| 220 | * @param pDevIns The device instance data.
|
|---|
| 221 | * If the registration structure is needed, pDevIns->pDevReg points to it.
|
|---|
| 222 | * @param iInstance Instance number. Use this to figure out which registers and such to use.
|
|---|
| 223 | * The device number is also found in pDevIns->iInstance, but since it's
|
|---|
| 224 | * likely to be freqently used PDM passes it as parameter.
|
|---|
| 225 | * @param pCfgHandle Configuration node handle for the device. Use this to obtain the configuration
|
|---|
| 226 | * of the device instance. It's also found in pDevIns->pCfgHandle, but like
|
|---|
| 227 | * iInstance it's expected to be used a bit in this function.
|
|---|
| 228 | */
|
|---|
| 229 | static DECLCALLBACK(int) pcarchConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfgHandle)
|
|---|
| 230 | {
|
|---|
| 231 | PDEVPCARCH pData = PDMINS2DATA(pDevIns, PDEVPCARCH);
|
|---|
| 232 | int rc;
|
|---|
| 233 | Assert(iInstance == 0);
|
|---|
| 234 |
|
|---|
| 235 | /*
|
|---|
| 236 | * Validate configuration.
|
|---|
| 237 | */
|
|---|
| 238 | if (!CFGMR3AreValuesValid(pCfgHandle, "\0"))
|
|---|
| 239 | return VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES;
|
|---|
| 240 |
|
|---|
| 241 | /*
|
|---|
| 242 | * Init the data.
|
|---|
| 243 | */
|
|---|
| 244 | pData->pDevIns = pDevIns;
|
|---|
| 245 |
|
|---|
| 246 | /*
|
|---|
| 247 | * Register I/O Ports
|
|---|
| 248 | */
|
|---|
| 249 | rc = PDMDevHlpIOPortRegister(pDevIns, 0xF0, 0x10, NULL, pcarchIOPortFPUWrite, pcarchIOPortFPURead, NULL, NULL, "Math Co-Processor (DOS/OS2 mode)");
|
|---|
| 250 | if (VBOX_FAILURE(rc))
|
|---|
| 251 | return rc;
|
|---|
| 252 | rc = PDMDevHlpIOPortRegister(pDevIns, 0x92, 1, NULL, pcarchIOPortPS2SysControlPortAWrite, pcarchIOPortPS2SysControlPortARead, NULL, NULL, "PS/2 system control port A (A20 and more)");
|
|---|
| 253 | if (VBOX_FAILURE(rc))
|
|---|
| 254 | return rc;
|
|---|
| 255 |
|
|---|
| 256 | /*
|
|---|
| 257 | * Reserve ROM/MMIO areas:
|
|---|
| 258 | * 1. 0x000a0000-0x000fffff
|
|---|
| 259 | * 2. 0xfff80000-0xffffffff
|
|---|
| 260 | */
|
|---|
| 261 | rc = PDMDevHlpPhysReserve(pDevIns, 0x000a0000, 0x50000, "Low ROM Region");
|
|---|
| 262 | if (VBOX_FAILURE(rc))
|
|---|
| 263 | return rc;
|
|---|
| 264 | rc = PDMDevHlpPhysReserve(pDevIns, 0xfff80000, 0x80000, "High ROM Region");
|
|---|
| 265 | if (VBOX_FAILURE(rc))
|
|---|
| 266 | return rc;
|
|---|
| 267 |
|
|---|
| 268 | return VINF_SUCCESS;
|
|---|
| 269 | }
|
|---|
| 270 |
|
|---|
| 271 |
|
|---|
| 272 | /**
|
|---|
| 273 | * The device registration structure.
|
|---|
| 274 | */
|
|---|
| 275 | const PDMDEVREG g_DevicePcArch =
|
|---|
| 276 | {
|
|---|
| 277 | /* u32Version */
|
|---|
| 278 | PDM_DEVREG_VERSION,
|
|---|
| 279 | /* szDeviceName */
|
|---|
| 280 | "pcarch",
|
|---|
| 281 | /* szGCMod */
|
|---|
| 282 | "",
|
|---|
| 283 | /* szR0Mod */
|
|---|
| 284 | "",
|
|---|
| 285 | /* pszDescription */
|
|---|
| 286 | "PC Architecture Device",
|
|---|
| 287 | /* fFlags */
|
|---|
| 288 | PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT | PDM_DEVREG_FLAGS_GUEST_BITS_32,
|
|---|
| 289 | /* fClass */
|
|---|
| 290 | PDM_DEVREG_CLASS_ARCH,
|
|---|
| 291 | /* cMaxInstances */
|
|---|
| 292 | 1,
|
|---|
| 293 | /* cbInstance */
|
|---|
| 294 | sizeof(DEVPCARCH),
|
|---|
| 295 | /* pfnConstruct */
|
|---|
| 296 | pcarchConstruct,
|
|---|
| 297 | /* pfnDestruct */
|
|---|
| 298 | NULL,
|
|---|
| 299 | /* pfnRelocate */
|
|---|
| 300 | NULL,
|
|---|
| 301 | /* pfnIOCtl */
|
|---|
| 302 | NULL,
|
|---|
| 303 | /* pfnPowerOn */
|
|---|
| 304 | NULL,
|
|---|
| 305 | /* pfnReset */
|
|---|
| 306 | NULL,
|
|---|
| 307 | /* pfnSuspend */
|
|---|
| 308 | NULL,
|
|---|
| 309 | /* pfnResume */
|
|---|
| 310 | NULL,
|
|---|
| 311 | /* pfnAttach */
|
|---|
| 312 | NULL,
|
|---|
| 313 | /* pfnDetach */
|
|---|
| 314 | NULL,
|
|---|
| 315 | /* pfnQueryInterface. */
|
|---|
| 316 | NULL,
|
|---|
| 317 | /* pfnInitComplete. */
|
|---|
| 318 | NULL
|
|---|
| 319 | };
|
|---|
| 320 |
|
|---|
