bfcbb81602
- IO intercept is not implemented yet - MSR intercept is not implemented yet VMX: Fixed Bochs PANIC crash when doing I/O access crossing VMX I/O permission bitmaps. This can happen because access_physical_read and access_physical_write cannot access memory cross 4K boundary.
575 lines
18 KiB
C++
575 lines
18 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2001-2011 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA B 02110-1301 USA
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//
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// bochs.h is the master header file for all C++ code. It includes all
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// the system header files needed by bochs, and also includes all the bochs
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// C++ header files. Because bochs.h and the files that it includes has
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// structure and class definitions, it cannot be called from C code.
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//
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#ifndef BX_BOCHS_H
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# define BX_BOCHS_H 1
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#include "config.h" /* generated by configure script from config.h.in */
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#ifndef __QNXNTO__
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extern "C" {
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#endif
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#ifdef WIN32
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// In a win32 compile (including cygwin), windows.h is required for several
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// files in gui and iodev. It is important to include it here in a header
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// file so that WIN32-specific data types can be used in fields of classes.
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#include <windows.h>
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#endif
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#if defined(__sun__)
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#undef EAX
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#undef ECX
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#undef EDX
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#undef EBX
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#undef ESP
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#undef EBP
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#undef ESI
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#undef EDI
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#undef EIP
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#undef CS
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#undef DS
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#undef ES
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#undef SS
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#undef FS
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#undef GS
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#endif
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#include <assert.h>
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#include <errno.h>
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#ifndef WIN32
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# include <unistd.h>
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#else
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# include <io.h>
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#endif
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#include <time.h>
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#if BX_WITH_MACOS
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# include <types.h>
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# include <stat.h>
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# include <cstdio>
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# include <unistd.h>
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#elif BX_WITH_CARBON
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# include <sys/types.h>
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# include <sys/stat.h>
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# include <sys/param.h> /* for MAXPATHLEN */
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# include <sys/time.h>
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# include <utime.h>
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#else
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# ifndef WIN32
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# include <sys/time.h>
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# endif
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# include <sys/types.h>
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# include <sys/stat.h>
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#endif
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#include <ctype.h>
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#include <string.h>
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#include <fcntl.h>
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#include <limits.h>
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#ifdef macintosh
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# define SuperDrive "[fd:]"
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#endif
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#ifndef __QNXNTO__
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}
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#endif
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#include "osdep.h" /* platform dependent includes and defines */
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#include "bx_debug/debug.h"
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#include "gui/siminterface.h"
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// BX_SHARE_PATH should be defined by the makefile. If not, give it
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// a value of NULL to avoid compile problems.
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#ifndef BX_SHARE_PATH
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#define BX_SHARE_PATH NULL
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#endif
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// prototypes
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int bx_begin_simulation(int argc, char *argv[]);
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void bx_stop_simulation();
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char *bx_find_bochsrc(void);
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int bx_parse_cmdline(int arg, int argc, char *argv[]);
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int bx_read_configuration(const char *rcfile);
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int bx_write_configuration(const char *rcfile, int overwrite);
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void bx_init_std_nic_options(const char *name, bx_list_c *menu);
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int bx_write_pci_nic_options(FILE *fp, bx_list_c *base);
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int bx_parse_nic_params(const char *context, const char *param, bx_list_c *base);
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void bx_reset_options(void);
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Bit32u crc32(const Bit8u *buf, int len);
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// for param-tree testing only
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void print_tree(bx_param_c *node, int level = 0);
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//
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// some macros to interface the CPU and memory to external environment
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// so that these functions can be redirected to the debugger when
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// needed.
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//
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#define BXRS_PARAM_SPECIAL(parent, name, maxvalue, save_handler, restore_handler) \
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{ \
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bx_param_num_c *param = new bx_param_num_c(parent, #name, "", "", 0, maxvalue, 0); \
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param->set_base(BASE_HEX); \
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param->set_sr_handlers(this, save_handler, restore_handler); \
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}
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#define BXRS_PARAM_SPECIAL64(parent, name, save_handler, restore_handler) \
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BXRS_PARAM_SPECIAL(parent, name, BX_MAX_BIT64U, save_handler, restore_handler)
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#define BXRS_PARAM_SPECIAL32(parent, name, save_handler, restore_handler) \
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BXRS_PARAM_SPECIAL(parent, name, BX_MAX_BIT32U, save_handler, restore_handler)
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#define BXRS_PARAM_SPECIAL16(parent, name, save_handler, restore_handler) \
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BXRS_PARAM_SPECIAL(parent, name, BX_MAX_BIT16U, save_handler, restore_handler)
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#define BXRS_PARAM_SPECIAL8(parent, name, save_handler, restore_handler) \
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BXRS_PARAM_SPECIAL(parent, name, BX_MAX_BIT8U, save_handler, restore_handler)
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#define BXRS_HEX_PARAM_SIMPLE32(parent, name) \
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new bx_shadow_num_c(parent, #name, (Bit32u*)&(name), BASE_HEX)
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#define BXRS_HEX_PARAM_SIMPLE64(parent, name) \
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new bx_shadow_num_c(parent, #name, (Bit64u*)&(name), BASE_HEX)
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#define BXRS_HEX_PARAM_SIMPLE(parent, name) \
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new bx_shadow_num_c(parent, #name, &(name), BASE_HEX)
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#define BXRS_HEX_PARAM_FIELD(parent, name, field) \
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new bx_shadow_num_c(parent, #name, &(field), BASE_HEX)
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#define BXRS_DEC_PARAM_SIMPLE(parent, name) \
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new bx_shadow_num_c(parent, #name, &(name), BASE_DEC)
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#define BXRS_DEC_PARAM_FIELD(parent, name, field) \
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new bx_shadow_num_c(parent, #name, &(field), BASE_DEC)
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#define BXRS_PARAM_BOOL(parent, name, field) \
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new bx_shadow_bool_c(parent, #name, (bx_bool*)(&(field)))
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// =-=-=-=-=-=-=- Normal optimized use -=-=-=-=-=-=-=-=-=-=-=-=-=-=
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// some pc_systems functions just redirect to the IO devices so optimize
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// by eliminating call here
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//
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// #define BX_INP(addr, len) bx_pc_system.inp(addr, len)
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// #define BX_OUTP(addr, val, len) bx_pc_system.outp(addr, val, len)
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#define BX_INP(addr, len) bx_devices.inp(addr, len)
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#define BX_OUTP(addr, val, len) bx_devices.outp(addr, val, len)
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#define BX_TICK1() bx_pc_system.tick1()
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#define BX_TICKN(n) bx_pc_system.tickn(n)
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#define BX_INTR bx_pc_system.INTR
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#define BX_SET_INTR(b) bx_pc_system.set_INTR(b)
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#define BX_HRQ bx_pc_system.HRQ
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#if BX_SUPPORT_SMP
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#define BX_CPU(x) (bx_cpu_array[x])
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#else
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#define BX_CPU(x) (&bx_cpu)
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#endif
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#define BX_MEM(x) (&bx_mem)
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#define BX_SET_ENABLE_A20(enabled) bx_pc_system.set_enable_a20(enabled)
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#define BX_GET_ENABLE_A20() bx_pc_system.get_enable_a20()
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#if BX_SUPPORT_A20
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# define A20ADDR(x) ((bx_phy_address)(x) & bx_pc_system.a20_mask)
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#else
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# define A20ADDR(x) ((bx_phy_address)(x))
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#endif
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// you can't use static member functions on the CPU, if there are going
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// to be 2 cpus. Check this early on.
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#if BX_SUPPORT_SMP
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# if BX_USE_CPU_SMF
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# error For SMP simulation, BX_USE_CPU_SMF must be 0.
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# endif
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#endif
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//
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// Ways for the the external environment to report back information
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// to the debugger.
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//
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#if BX_DEBUGGER
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# define BX_DBG_ASYNC_INTR bx_guard.async.irq
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# define BX_DBG_ASYNC_DMA bx_guard.async.dma
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# define BX_DBG_DMA_REPORT(addr, len, what, val) \
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if (bx_guard.report.dma) bx_dbg_dma_report(addr, len, what, val)
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# define BX_DBG_IAC_REPORT(vector, irq) \
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if (bx_guard.report.irq) bx_dbg_iac_report(vector, irq)
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# define BX_DBG_A20_REPORT(val) \
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if (bx_guard.report.a20) bx_dbg_a20_report(val)
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# define BX_DBG_IO_REPORT(port, size, op, val) \
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if (bx_guard.report.io) bx_dbg_io_report(port, size, op, val)
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# define BX_DBG_LIN_MEMORY_ACCESS(cpu, lin, phy, len, pl, rw, data) \
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bx_dbg_lin_memory_access(cpu, lin, phy, len, pl, rw, data)
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# define BX_DBG_PHY_MEMORY_ACCESS(cpu, phy, len, rw, data) \
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bx_dbg_phy_memory_access(cpu, phy, len, rw, data)
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#else // #if BX_DEBUGGER
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// debugger not compiled in, use empty stubs
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# define BX_DBG_ASYNC_INTR 1
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# define BX_DBG_ASYNC_DMA 1
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# define BX_DBG_DMA_REPORT(addr, len, what, val) /* empty */
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# define BX_DBG_IAC_REPORT(vector, irq) /* empty */
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# define BX_DBG_A20_REPORT(val) /* empty */
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# define BX_DBG_IO_REPORT(port, size, op, val) /* empty */
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# define BX_DBG_LIN_MEMORY_ACCESS(cpu, lin, phy, len, pl, rw, data) /* empty */
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# define BX_DBG_PHY_MEMORY_ACCESS(cpu, phy, len, rw, data) /* empty */
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#endif // #if BX_DEBUGGER
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#define MAGIC_LOGNUM 0x12345678
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typedef class BOCHSAPI logfunctions
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{
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char *prefix;
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// values of onoff: 0=ignore, 1=report, 2=ask, 3=fatal
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#define ACT_IGNORE 0
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#define ACT_REPORT 1
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#define ACT_ASK 2
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#define ACT_FATAL 3
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#define N_ACT 4
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int onoff[N_LOGLEV];
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class iofunctions *logio;
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// default log actions for all devices, declared and initialized
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// in logio.cc.
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BOCHSAPI_CYGONLY static int default_onoff[N_LOGLEV];
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public:
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logfunctions(void);
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logfunctions(class iofunctions *);
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~logfunctions(void);
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void info(const char *fmt, ...) BX_CPP_AttrPrintf(2, 3);
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void error(const char *fmt, ...) BX_CPP_AttrPrintf(2, 3);
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void panic(const char *fmt, ...) BX_CPP_AttrPrintf(2, 3);
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void ldebug(const char *fmt, ...) BX_CPP_AttrPrintf(2, 3);
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void fatal (const char *prefix, const char *fmt, va_list ap, int exit_status);
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void ask (int level, const char *prefix, const char *fmt, va_list ap);
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void put(const char *);
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void setio(class iofunctions *);
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void setonoff(int loglev, int value) {
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assert (loglev >= 0 && loglev < N_LOGLEV);
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onoff[loglev] = value;
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}
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char *getprefix () { return prefix; }
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int getonoff(int level) {
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assert (level>=0 && level<N_LOGLEV);
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return onoff[level];
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}
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static void set_default_action (int loglev, int action) {
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assert (loglev >= 0 && loglev < N_LOGLEV);
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assert (action >= 0 && action < N_ACT);
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default_onoff[loglev] = action;
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}
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static int get_default_action (int loglev) {
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assert (loglev >= 0 && loglev < N_LOGLEV);
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return default_onoff[loglev];
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}
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} logfunc_t;
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#define BX_LOGPREFIX_SIZE 51
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class BOCHSAPI iofunctions {
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int magic;
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char logprefix[BX_LOGPREFIX_SIZE];
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FILE *logfd;
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class logfunctions *log;
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void init(void);
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void flush(void);
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// Log Class types
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public:
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iofunctions(void);
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iofunctions(FILE *);
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iofunctions(int);
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iofunctions(const char *);
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~iofunctions(void);
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void out(int level, const char *pre, const char *fmt, va_list ap);
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void init_log(const char *fn);
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void init_log(int fd);
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void init_log(FILE *fs);
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void exit_log();
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void set_log_prefix(const char *prefix);
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int get_n_logfns() { return n_logfn; }
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logfunc_t *get_logfn(int index) { return logfn_list[index]; }
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void add_logfn(logfunc_t *fn);
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void remove_logfn(logfunc_t *fn);
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void set_log_action(int loglevel, int action);
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const char *getlevel(int i);
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char *getaction(int i);
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protected:
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int n_logfn;
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#define MAX_LOGFNS 512
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logfunc_t *logfn_list[MAX_LOGFNS];
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const char *logfn;
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};
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typedef class BOCHSAPI iofunctions iofunc_t;
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#define SAFE_GET_IOFUNC() \
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((io==NULL)? (io=new iofunc_t("/dev/stderr")) : io)
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#define SAFE_GET_GENLOG() \
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((genlog==NULL)? (genlog=new logfunc_t(SAFE_GET_IOFUNC())) : genlog)
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#if BX_NO_LOGGING
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#define BX_INFO(x)
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#define BX_DEBUG(x)
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#define BX_ERROR(x)
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#define BX_PANIC(x) (LOG_THIS panic) x
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#define BX_ASSERT(x)
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#else
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#define BX_INFO(x) (LOG_THIS info) x
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#define BX_DEBUG(x) (LOG_THIS ldebug) x
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#define BX_ERROR(x) (LOG_THIS error) x
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#define BX_PANIC(x) (LOG_THIS panic) x
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#if BX_ASSERT_ENABLE
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#define BX_ASSERT(x) do {if (!(x)) BX_PANIC(("failed assertion \"%s\" at %s:%d\n", #x, __FILE__, __LINE__));} while (0)
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#else
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#define BX_ASSERT(x)
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#endif
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#endif
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BOCHSAPI extern iofunc_t *io;
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BOCHSAPI extern logfunc_t *genlog;
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#ifndef UNUSED
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# define UNUSED(x) ((void)x)
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#endif
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//Generic MAX and MIN Functions
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#define BX_MAX(a,b) ((a) > (b) ? (a) : (b))
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#define BX_MIN(a,b) ((a) < (b) ? (a) : (b))
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#if BX_SUPPORT_X86_64
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#define FMT_ADDRX FMT_ADDRX64
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#else
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#define FMT_ADDRX FMT_ADDRX32
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#endif
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#if BX_PHY_ADDRESS_LONG
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#define FMT_PHY_ADDRX FMT_ADDRX64
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#else
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#define FMT_PHY_ADDRX FMT_ADDRX32
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#endif
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#define FMT_LIN_ADDRX FMT_ADDRX
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#if BX_GDBSTUB
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// defines for GDB stub
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void bx_gdbstub_init(void);
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void bx_gdbstub_break(void);
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int bx_gdbstub_check(unsigned int eip);
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#define GDBSTUB_STOP_NO_REASON (0xac0)
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#if BX_SUPPORT_SMP
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#error GDB stub was written for single processor support. If multiprocessor support is added, then we can remove this check.
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// The big problem is knowing which CPU gdb is referring to. In other words,
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// what should we put for "n" in BX_CPU(n)->dbg_xlate_linear2phy() and
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// BX_CPU(n)->dword.eip, etc.
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#endif
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#endif
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typedef struct {
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bx_bool interrupts;
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bx_bool exceptions;
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bx_bool print_timestamps;
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#if BX_DEBUGGER
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bx_bool magic_break_enabled;
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#endif
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#if BX_GDBSTUB
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bx_bool gdbstub_enabled;
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#endif
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#if BX_SUPPORT_APIC
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bx_bool apic;
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#endif
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#if BX_DEBUG_LINUX
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bx_bool linux_syscall;
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#endif
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} bx_debug_t;
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BOCHSAPI_MSVCONLY void CDECL bx_signal_handler(int signum);
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int bx_atexit(void);
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BOCHSAPI extern bx_debug_t bx_dbg;
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#if BX_SUPPORT_APIC
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// determinted by XAPIC option
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BOCHSAPI extern Bit32u apic_id_mask;
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#endif
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// memory access type (read/write/execute/rw)
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#define BX_READ 0
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#define BX_WRITE 1
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#define BX_EXECUTE 2
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#define BX_RW 3
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// to be used in concatenation with BX_READ/BX_WRITE/BX_EXECUTE/BX_RW
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#define BX_PDPTR0_ACCESS 0x010
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#define BX_PDPTR1_ACCESS 0x020
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#define BX_PDPTR2_ACCESS 0x030
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#define BX_PDPTR3_ACCESS 0x040
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#define BX_PTE_ACCESS 0x050
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#define BX_PDE_ACCESS 0x060
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#define BX_PDPTE_ACCESS 0x070
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#define BX_PML4E_ACCESS 0x080
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#define BX_EPT_PTE_ACCESS 0x090
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#define BX_EPT_PDE_ACCESS 0x0a0
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#define BX_EPT_PDPTE_ACCESS 0x0b0
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#define BX_EPT_PML4E_ACCESS 0x0c0
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#define BX_VMCS_ACCESS 0x0d0
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#define BX_MSR_BITMAP_ACCESS 0x0e0
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#define BX_IO_BITMAP_ACCESS 0x0f0
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#define BX_VMX_LOAD_MSR_ACCESS 0x100
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#define BX_VMX_STORE_MSR_ACCESS 0x110
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#define BX_VMX_VTPR_ACCESS 0x120
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#define BX_SMRAM_ACCESS 0x130
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// types of reset
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#define BX_RESET_SOFTWARE 10
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#define BX_RESET_HARDWARE 11
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#include "memory/memory.h"
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#include "pc_system.h"
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#include "gui/gui.h"
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/* --- EXTERNS --- */
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#if BX_GUI_SIGHANDLER
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extern bx_bool bx_gui_sighandler;
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#endif
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// This value controls how often each I/O device's periodic() method
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// gets called. The timer is set up in iodev/devices.cc.
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#define BX_IODEV_HANDLER_PERIOD 100 // microseconds
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//#define BX_IODEV_HANDLER_PERIOD 10 // microseconds
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#define BX_PATHNAME_LEN 512
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#define BX_KBD_XT_TYPE 0
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#define BX_KBD_AT_TYPE 1
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#define BX_KBD_MF_TYPE 2
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#define BX_N_OPTROM_IMAGES 4
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#define BX_N_OPTRAM_IMAGES 4
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#define BX_N_SERIAL_PORTS 4
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#define BX_N_PARALLEL_PORTS 2
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#define BX_N_USB_UHCI_PORTS 2
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#define BX_N_USB_OHCI_PORTS 2
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#define BX_N_USB_XHCI_PORTS 4
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#define BX_N_USB_HUB_PORTS 8
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#define BX_N_PCI_SLOTS 5
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#define BX_N_USER_PLUGINS 8
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void bx_center_print(FILE *file, const char *line, unsigned maxwidth);
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#include "instrument.h"
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BX_CPP_INLINE Bit16u bx_bswap16(Bit16u val16)
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{
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return (val16<<8) | (val16>>8);
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}
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#if BX_HAVE___BUILTIN_BSWAP32
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#define bx_bswap32 __builtin_bswap32
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#else
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BX_CPP_INLINE Bit32u bx_bswap32(Bit32u val32)
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{
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val32 = ((val32<<8) & 0xFF00FF00) | ((val32>>8) & 0x00FF00FF);
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return (val32<<16) | (val32>>16);
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}
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#endif
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#if BX_HAVE___BUILTIN_BSWAP64
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#define bx_bswap64 __builtin_bswap64
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#else
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BX_CPP_INLINE Bit64u bx_bswap64(Bit64u val64)
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{
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Bit32u lo = bx_bswap32((Bit32u)(val64 >> 32));
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Bit32u hi = bx_bswap32((Bit32u)(val64 & 0xFFFFFFFF));
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return ((Bit64u)hi << 32) | (Bit64u)lo;
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}
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#endif
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// These are some convenience macros which abstract out accesses between
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// a variable in native byte ordering to/from guest (x86) memory, which is
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// always in little endian format. You must deal with alignment (if your
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// system cares) and endian rearranging. Don't assume anything. You could
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// put some platform specific asm() statements here, to make use of native
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// instructions to help perform these operations more efficiently than C++.
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#ifdef BX_LITTLE_ENDIAN
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#define WriteHostWordToLittleEndian(hostPtr, nativeVar16) \
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*((Bit16u*)(hostPtr)) = (nativeVar16)
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#define WriteHostDWordToLittleEndian(hostPtr, nativeVar32) \
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*((Bit32u*)(hostPtr)) = (nativeVar32)
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#define WriteHostQWordToLittleEndian(hostPtr, nativeVar64) \
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*((Bit64u*)(hostPtr)) = (nativeVar64)
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#define ReadHostWordFromLittleEndian(hostPtr, nativeVar16) \
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(nativeVar16) = *((Bit16u*)(hostPtr))
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#define ReadHostDWordFromLittleEndian(hostPtr, nativeVar32) \
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(nativeVar32) = *((Bit32u*)(hostPtr))
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#define ReadHostQWordFromLittleEndian(hostPtr, nativeVar64) \
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(nativeVar64) = *((Bit64u*)(hostPtr))
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#else
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#define WriteHostWordToLittleEndian(hostPtr, nativeVar16) { \
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*(Bit16u *)(hostPtr) = bx_bswap16((Bit16u)(nativeVar16)); \
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}
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#define WriteHostDWordToLittleEndian(hostPtr, nativeVar32) { \
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*(Bit32u *)(hostPtr) = bx_bswap32((Bit32u)(nativeVar32)); \
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}
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#define WriteHostQWordToLittleEndian(hostPtr, nativeVar64) { \
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*(Bit64u *)(hostPtr) = bx_bswap64((Bit64u)(nativeVar64)); \
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}
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#define ReadHostWordFromLittleEndian(hostPtr, nativeVar16) { \
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(nativeVar16) = bx_bswap16(*(Bit16u *)(hostPtr)); \
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}
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#define ReadHostDWordFromLittleEndian(hostPtr, nativeVar32) { \
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(nativeVar32) = bx_bswap32(*(Bit32u *)(hostPtr)); \
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}
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#define ReadHostQWordFromLittleEndian(hostPtr, nativeVar64) { \
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(nativeVar64) = bx_bswap64(*(Bit64u *)(hostPtr)); \
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}
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#endif
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#define CopyHostWordLittleEndian(hostAddrDst, hostAddrSrc) \
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(* (Bit16u *)(hostAddrDst)) = (* (Bit16u *)(hostAddrSrc));
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#define CopyHostDWordLittleEndian(hostAddrDst, hostAddrSrc) \
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(* (Bit32u *)(hostAddrDst)) = (* (Bit32u *)(hostAddrSrc));
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#define CopyHostQWordLittleEndian(hostAddrDst, hostAddrSrc) \
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(* (Bit64u *)(hostAddrDst)) = (* (Bit64u *)(hostAddrSrc));
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#endif /* BX_BOCHS_H */
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