Bochs/bochs/memory/memory-bochs.h

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/////////////////////////////////////////////////////////////////////////
// $Id$
/////////////////////////////////////////////////////////////////////////
//
// Copyright (C) 2001-2017 The Bochs Project
//
// I/O memory handlers API Copyright (C) 2003 by Frank Cornelis
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
//
/////////////////////////////////////////////////////////////////////////
#ifndef BX_MEM_H
# define BX_MEM_H 1
#if BX_USE_MEM_SMF
// if static member functions on, then there is only one memory
# define BX_MEM_SMF static
# define BX_MEM_THIS BX_MEM(0)->
#else
# define BX_MEM_SMF
# define BX_MEM_THIS this->
#endif
class BX_CPU_C;
// 512K BIOS ROM @0xfff80000
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#define BIOSROMSZ ((Bit32u)(1 << 21)) // 2M BIOS ROM @0xffe00000, must be a power of 2
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#define EXROMSIZE (0x20000) // ROMs 0xc0000-0xdffff (area 0xe0000-0xfffff=bios mapped)
#define BIOS_MASK (BIOSROMSZ-1)
#define EXROM_MASK (EXROMSIZE-1)
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#define BIOS_MAP_LAST128K(addr) (((addr) | 0xfff00000) & BIOS_MASK)
enum memory_area_t {
BX_MEM_AREA_C0000 = 0,
BX_MEM_AREA_C4000,
BX_MEM_AREA_C8000,
BX_MEM_AREA_CC000,
BX_MEM_AREA_D0000,
BX_MEM_AREA_D4000,
BX_MEM_AREA_D8000,
BX_MEM_AREA_DC000,
BX_MEM_AREA_E0000,
BX_MEM_AREA_E4000,
BX_MEM_AREA_E8000,
BX_MEM_AREA_EC000,
BX_MEM_AREA_F0000
};
typedef bx_bool (*memory_handler_t)(bx_phy_address addr, unsigned len, void *data, void *param);
// return a pointer to 4K region containing <addr> or NULL if direct access is not allowed
// same format as getHostMemAddr method
typedef Bit8u* (*memory_direct_access_handler_t)(bx_phy_address addr, unsigned rw, void *param);
struct memory_handler_struct {
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struct memory_handler_struct *next;
void *param;
bx_phy_address begin;
bx_phy_address end;
Bit16u bitmap;
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memory_handler_t read_handler;
memory_handler_t write_handler;
memory_direct_access_handler_t da_handler;
};
#define SMRAM_CODE 1
#define SMRAM_DATA 2
Add plugin support to Bochs by merging all the changes from the BRANCH_PLUGINS branch! Authors: Bryce Denney Christophe Bothamy Kevin Lawton (we grabbed a lot of plugin code from plex86) Testing help from: Volker Ruppert Don Becker (Psyon) Jeremy Parsons (Br'fin) The change log is too long to paste in here. To read the change log, do cvs log patches/patch.final-from-BRANCH_PLUGINS.gz All the changes and a detailed description are contained in a patch called patch.final-from-BRANCH_PLUGINS.gz. To look at the complete patch, do cvs upd -r1.1 patches/patch.final-from-BRANCH_PLUGINS.gz Then you will have a local copy of the patch, which you can gunzip and play with however you want. Modified Files: .bochsrc Makefile.in aclocal.m4 bochs.h config.h.in configure configure.in gdbstub.cc logio.cc main.cc pc_system.cc pc_system.h state_file.h bios/Makefile.in bios/rombios.c cpu/Makefile.in cpu/access.cc cpu/apic.cc cpu/arith16.cc cpu/arith32.cc cpu/arith8.cc cpu/cpu.cc cpu/cpu.h cpu/ctrl_xfer32.cc cpu/exception.cc cpu/fetchdecode.cc cpu/fetchdecode64.cc cpu/flag_ctrl.cc cpu/flag_ctrl_pro.cc cpu/init.cc cpu/io.cc cpu/logical16.cc cpu/logical32.cc cpu/logical8.cc cpu/paging.cc cpu/proc_ctrl.cc cpu/protect_ctrl.cc cpu/segment_ctrl_pro.cc cpu/shift16.cc cpu/shift32.cc cpu/stack64.cc cpu/string.cc cpu/tasking.cc debug/Makefile.in debug/dbg_main.cc disasm/Makefile.in doc/docbook/user/user.dbk dynamic/Makefile.in fpu/Makefile.in gui/Makefile.in gui/amigaos.cc gui/beos.cc gui/carbon.cc gui/control.cc gui/control.h gui/gui.cc gui/gui.h gui/keymap.cc gui/keymap.h gui/macintosh.cc gui/nogui.cc gui/rfb.cc gui/sdl.cc gui/sdlkeys.h gui/siminterface.cc gui/siminterface.h gui/term.cc gui/win32.cc gui/wx.cc gui/wxdialog.cc gui/wxdialog.h gui/wxmain.cc gui/wxmain.h gui/x.cc gui/keymaps/sdl-pc-de.map gui/keymaps/sdl-pc-us.map gui/keymaps/x11-pc-de.map instrument/example0/instrument.h instrument/example1/instrument.h instrument/stubs/instrument.cc instrument/stubs/instrument.h iodev/Makefile.in iodev/biosdev.cc iodev/biosdev.h iodev/cdrom.cc iodev/cmos.cc iodev/cmos.h iodev/devices.cc iodev/dma.cc iodev/dma.h iodev/eth_fbsd.cc iodev/eth_linux.cc iodev/eth_null.cc iodev/eth_tap.cc iodev/floppy.cc iodev/floppy.h iodev/guest2host.cc iodev/guest2host.h iodev/harddrv.cc iodev/harddrv.h iodev/iodebug.cc iodev/iodebug.h iodev/iodev.h iodev/keyboard.cc iodev/keyboard.h iodev/ne2k.cc iodev/ne2k.h iodev/parallel.cc iodev/parallel.h iodev/pci.cc iodev/pci.h iodev/pci2isa.cc iodev/pci2isa.h iodev/pic.cc iodev/pic.h iodev/pit.cc iodev/pit.h iodev/pit_wrap.cc iodev/pit_wrap.h iodev/sb16.cc iodev/sb16.h iodev/scancodes.cc iodev/scancodes.h iodev/serial.cc iodev/serial.h iodev/slowdown_timer.cc iodev/slowdown_timer.h iodev/unmapped.cc iodev/unmapped.h iodev/vga.cc iodev/vga.h memory/Makefile.in memory/memory.cc memory/memory.h memory/misc_mem.cc misc/bximage.c misc/niclist.c Added Files: README-plugins extplugin.h ltdl.c ltdl.h ltdlconf.h.in ltmain.sh plugin.cc plugin.h
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class BOCHSAPI BX_MEM_C : public logfunctions {
private:
struct memory_handler_struct **memory_handlers;
bx_bool pci_enabled;
bx_bool bios_write_enabled;
bx_bool smram_available;
bx_bool smram_enable;
bx_bool smram_restricted;
Bit64u len, allocated; // could be > 4G
Bit8u *actual_vector;
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Bit8u *vector; // aligned correctly
Bit8u **blocks;
Bit8u *rom; // 512k BIOS rom space + 128k expansion rom space
Bit8u *bogus; // 4k for unexisting memory
bx_bool rom_present[65];
bx_bool memory_type[13][2];
Bit32u used_blocks;
#if BX_LARGE_RAMFILE
static Bit8u * const swapped_out; // NULL; // (NULL - sizeof(Bit8u));
Bit32u next_swapout_idx;
FILE *overflow_file;
BX_MEM_SMF void read_block(Bit32u block);
#endif
public:
BX_MEM_C();
~BX_MEM_C();
BX_MEM_SMF Bit8u* get_vector(bx_phy_address addr);
BX_MEM_SMF void init_memory(Bit64u guest, Bit64u host);
BX_MEM_SMF void cleanup_memory(void);
BX_MEM_SMF void enable_smram(bx_bool enable, bx_bool restricted);
BX_MEM_SMF void disable_smram(void);
BX_MEM_SMF bx_bool is_smram_accessible(void);
BX_MEM_SMF void set_bios_write(bx_bool enabled);
BX_MEM_SMF void set_memory_type(memory_area_t area, bx_bool rw, bx_bool dram);
BX_MEM_SMF Bit8u* getHostMemAddr(BX_CPU_C *cpu, bx_phy_address addr, unsigned rw);
// Note: accesses should always be contained within a single page
BX_MEM_SMF void readPhysicalPage(BX_CPU_C *cpu, bx_phy_address addr,
unsigned len, void *data);
BX_MEM_SMF void writePhysicalPage(BX_CPU_C *cpu, bx_phy_address addr,
unsigned len, void *data);
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BX_MEM_SMF void dmaReadPhysicalPage(bx_phy_address addr, unsigned len, Bit8u *data);
BX_MEM_SMF void dmaWritePhysicalPage(bx_phy_address addr, unsigned len, Bit8u *data);
BX_MEM_SMF void load_ROM(const char *path, bx_phy_address romaddress, Bit8u type);
BX_MEM_SMF void load_RAM(const char *path, bx_phy_address romaddress);
#if (BX_DEBUGGER || BX_DISASM || BX_GDBSTUB)
BX_MEM_SMF bx_bool dbg_fetch_mem(BX_CPU_C *cpu, bx_phy_address addr, unsigned len, Bit8u *buf);
#endif
#if (BX_DEBUGGER || BX_GDBSTUB)
BX_MEM_SMF bx_bool dbg_set_mem(bx_phy_address addr, unsigned len, Bit8u *buf);
BX_MEM_SMF bx_bool dbg_crc32(bx_phy_address addr1, bx_phy_address addr2, Bit32u *crc);
#endif
BX_MEM_SMF bx_bool registerMemoryHandlers(void *param, memory_handler_t read_handler,
memory_handler_t write_handler, memory_direct_access_handler_t da_handler,
bx_phy_address begin_addr, bx_phy_address end_addr);
BX_MEM_SMF BX_CPP_INLINE bx_bool registerMemoryHandlers(void *param, memory_handler_t read_handler,
memory_handler_t write_handler,
bx_phy_address begin_addr, bx_phy_address end_addr)
{
return registerMemoryHandlers(param, read_handler, write_handler, NULL, begin_addr, end_addr);
}
BX_MEM_SMF bx_bool unregisterMemoryHandlers(void *param, bx_phy_address begin_addr, bx_phy_address end_addr);
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BX_MEM_SMF Bit64u get_memory_len(void);
BX_MEM_SMF void allocate_block(Bit32u index);
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BX_MEM_SMF Bit8u* alloc_vector_aligned(Bit32u bytes, Bit32u alignment);
#if BX_SUPPORT_MONITOR_MWAIT
BX_MEM_SMF bx_bool is_monitor(bx_phy_address begin_addr, unsigned len);
BX_MEM_SMF void check_monitor(bx_phy_address addr, unsigned len);
#endif
void register_state(void);
friend void ramfile_save_handler(void *devptr, FILE *fp);
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friend Bit64s memory_param_save_handler(void *devptr, bx_param_c *param);
friend void memory_param_restore_handler(void *devptr, bx_param_c *param, Bit64s val);
};
BOCHSAPI extern BX_MEM_C bx_mem;
// must be power of two
#define BX_MEM_BLOCK_LEN (128*1024) /* 128K blocks */
/*
BX_CPP_INLINE Bit8u* BX_MEM_C::get_vector(bx_phy_address addr)
{
return (BX_MEM_THIS vector + addr);
}
*/
BX_CPP_INLINE Bit8u* BX_MEM_C::get_vector(bx_phy_address addr)
{
Bit32u block = (Bit32u)(addr / BX_MEM_BLOCK_LEN);
#if (BX_LARGE_RAMFILE)
if (!BX_MEM_THIS blocks[block] || (BX_MEM_THIS blocks[block] == BX_MEM_THIS swapped_out))
#else
if (!BX_MEM_THIS blocks[block])
#endif
allocate_block(block);
return BX_MEM_THIS blocks[block] + (Bit32u)(addr & (BX_MEM_BLOCK_LEN-1));
}
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BX_CPP_INLINE Bit64u BX_MEM_C::get_memory_len(void)
{
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return (BX_MEM_THIS len);
}
#endif