Commit Graph

62 Commits

Author SHA1 Message Date
Stanislav Shwartsman
fee48d74e0 Avoid doing strdup for param name field - most of the strdups elliminated ! 2006-05-29 22:33:38 +00:00
Stanislav Shwartsman
bc3cbb49b6 Write Virtual timer save/restore using macroses 2006-05-28 20:24:51 +00:00
Stanislav Shwartsman
286b89d763 Several x86-64 MSRs were not-initilized !
Fixed small save-restore bug in dma.cc
First step to make save-restore code look better (only several files processed for example)
2006-05-28 17:07:57 +00:00
Stanislav Shwartsman
8b0df8e99b Merge SAVE_RESTORE branch to CVS 2006-05-27 15:54:49 +00:00
Stanislav Shwartsman
7c1767d17a Partial sync with save-restore 2006-05-27 14:02:34 +00:00
Stanislav Shwartsman
99406e5f56 revert last change in pc_system.cc 2006-05-18 18:08:30 +00:00
Michael Brown
26056d930c The debugger can call activate_timer() on arbitrary timers, including
timer 0, so it should not be a fatal error.  Attempting to register,
unregister or deactivate timer 0 is still an error.
2006-05-18 13:42:22 +00:00
Stanislav Shwartsman
8db1de7124 - Fixed several issues, each cause to NullTimer function never be called, the method is required for icache correct functionalit
- Speed-up icache by correct purging of Icache entries
- Several new assertions for timers, to prevent bugs in future
2006-05-16 20:55:55 +00:00
Stanislav Shwartsman
f93ab35357 Flush TLB for all CPUs when memory mapping information changed by system (A20 change, PAM write or similar events) 2006-04-29 17:21:49 +00:00
Stanislav Shwartsman
e85a90a720 Remove cpu.h -> devices.cc dependancy, kill_bochs_request moved from CPU to bx_pc_system
Small Icache simplification and speedup
2006-03-14 18:11:22 +00:00
Stanislav Shwartsman
3ec2e9e7de Fixed segfault in SMP mode 2006-03-08 19:27:56 +00:00
Stanislav Shwartsman
7b6c2587a9 Now devices could be compiled separatelly from CPU
Averything that required cpu.h include now has it explicitly and there are a lot of files not dependant by CPU at all which will compile a lot faster now ...
2006-03-06 22:03:16 +00:00
Stanislav Shwartsman
fc0894bbe1 Enable A20 after system reset 2006-03-04 16:58:10 +00:00
Stanislav Shwartsman
b8984e7b1d Commit an assertion to pc_system_c constructor - check that no timers defined whne the construction is called. This is done to prevent the bug like critical APIC timer bug added in 2.2.5 and fixed in 2.2.6 release. 2006-01-31 20:43:24 +00:00
Stanislav Shwartsman
37eb82c69c Totally remove the cosimulation code from Bochs.
The Bochs anyway even doesn't compile if cosimulation configured enabled.
But in the same time the cosimulation code only disturbs to the future development of Bochs debugger, for example adding x86-64 functionality ...
For those of you who still may want to see the cosimulation code inside I put it in patch and upload it Bochs CVS patches folder. Read comments for the patch ! ----------------------------------------------------------------------
2006-01-25 22:20:00 +00:00
Volker Ruppert
c56b918a8e - code cleanup: removed unused defines and structure members
- removed plugin flag 'use_devmodel_interface' (all plugins are using it)
2006-01-20 19:12:03 +00:00
Volker Ruppert
d86c22fa20 - check if CMOS plugin has been loaded before calling save_image() (fixes double
panic if Bochs fails early)
2005-12-26 17:16:32 +00:00
Volker Ruppert
ef51fd3595 - if cmos image is enabled, save it on exit 2005-12-04 17:43:09 +00:00
Stanislav Shwartsman
64ba97210b INVD/WBINVD should flush caches and TLB 2005-10-18 18:07:52 +00:00
Stanislav Shwartsman
f93bd1c664 Optimize SHOW_IPS calculation, now it does not require additional ips_count++ operation after every instruction execution 2005-07-04 18:02:37 +00:00
Stanislav Shwartsman
5f4d356090 Fixed compilation error when ICACHE is disabled 2005-06-16 20:35:31 +00:00
Stanislav Shwartsman
47442d437a Speedup ICAche decWriteStamp operation. The main idea for this speedup was given by h.johansson. 2005-06-16 20:28:27 +00:00
Stanislav Shwartsman
494af8b1f3 Fixed segmentation fault for 2CPU cfg 2005-04-26 19:19:58 +00:00
Volker Ruppert
242b9a2c3a - level sensitive irq mode prepared
- pci reset mechanism implemented
- obsolete ResetSignal stuff removed
- ioapic: irq handling functions renamed to raise_irq/lower_irq
- pic: fixed two warnings
2004-07-06 19:59:10 +00:00
Christophe Bothamy
ba13a484b5 - replace ResetCpu and ResetSystem by Reset(BX_RESET_SOFTWARE) and Reset(BX_RESET_HARDWARE) 2004-06-21 10:39:24 +00:00
Stanislav Shwartsman
5873b26a82 Speed up compilation process.
bochs.h already not include iodev.h which reduces compilation dependences for almost all cpu and fpu files, now cpu files will not be recompiled if iodev includes was changed
2004-06-19 15:20:15 +00:00
Christophe Bothamy
5b3100151a - add ResetCpus and ResetSystem methods 2004-04-08 20:56:36 +00:00
Volker Ruppert
8b640bface - serial read/write and timer handlers prepared for 4 ports
- new function triggeredTimerID() returns the active ID in timer handler
2004-01-17 15:51:09 +00:00
Volker Ruppert
d1652093ac - applied some parts of the patch from Andrew Zabolotny <zap@cobra.ru>
* changed all %ll format descriptions to FMT_LL macro so that
    Microsoft Visual C works correctly (it uses %I64)
  * missing type conversions added
  * cdrom.cc: variable types for win32 fixed
  * removed some unused variables in eth_win32.cc and harddrv.cc
  * added missing includes in make_cmos_image.c and niclist.c
2003-06-07 19:16:55 +00:00
Christophe Bothamy
50efc3b8c7 - apply Conn Clark's patch.perf-regparm-cclark :
- it works only on x86 with gcc2.95+
  - uses the GCC function atribute "regparm(n)" to declare that certain
    functions use the register calling convention
  - performance improvement is about 6%
2003-03-02 23:59:12 +00:00
Gregory Alexander
f12a510b8b Added a strictly increasing timer.
This is only somewhat useful here, but will be more
useful when the general timer interface is available.
2003-02-14 04:22:16 +00:00
Bryce Denney
cec9135e9f - Apply patch.replace-Boolean rev 1.3. Every "Boolean" is now changed to a
"bx_bool" which is always defined as Bit32u on all platforms.  In Carbon
  specific code, Boolean is still used because the Carbon header files
  define it to unsigned char.
- this fixes bug [ 623152 ] MacOSX: Triple Exception Booting win95.
  The bug was that some code in Bochs depends on Boolean to be a
  32 bit value.  (This should be fixed, but I don't know all the places
  where it needs to be fixed yet.)  Because Carbon defined Boolean as
  an unsigned char, Bochs just followed along and used the unsigned char
  definition to avoid compile problems.  This exposed the dependency
  on 32 bit Boolean on MacOS X only and led to major simulation problems,
  that could only be reproduced and debugged on that platform.
- On the mailing list we debated whether to make all Booleans into "bool" or
  our own type.  I chose bx_bool for several reasons.
  1. Unlike C++'s bool, we can guarantee that bx_bool is the same size on all
     platforms, which makes it much less likely to have more platform-specific
     simulation differences in the future.  (I spent hours on a borrowed
     MacOSX machine chasing bug 618388 before discovering that different sized
     Booleans were the problem, and I don't want to repeat that.)
  2. We still have at least one dependency on 32 bit Booleans which must be
     fixed some time, but I don't want to risk introducing new bugs into the
     simulation just before the 2.0 release.

Modified Files:
    bochs.h config.h.in gdbstub.cc logio.cc main.cc pc_system.cc
    pc_system.h plugin.cc plugin.h bios/rombios.c cpu/apic.cc
    cpu/arith16.cc cpu/arith32.cc cpu/arith64.cc cpu/arith8.cc
    cpu/cpu.cc cpu/cpu.h cpu/ctrl_xfer16.cc cpu/ctrl_xfer32.cc
    cpu/ctrl_xfer64.cc cpu/data_xfer16.cc cpu/data_xfer32.cc
    cpu/data_xfer64.cc cpu/debugstuff.cc cpu/exception.cc
    cpu/fetchdecode.cc cpu/flag_ctrl_pro.cc cpu/init.cc
    cpu/io_pro.cc cpu/lazy_flags.cc cpu/lazy_flags.h cpu/mult16.cc
    cpu/mult32.cc cpu/mult64.cc cpu/mult8.cc cpu/paging.cc
    cpu/proc_ctrl.cc cpu/segment_ctrl_pro.cc cpu/stack_pro.cc
    cpu/tasking.cc debug/dbg_main.cc debug/debug.h debug/sim2.cc
    disasm/dis_decode.cc disasm/disasm.h doc/docbook/Makefile
    docs-html/cosimulation.html fpu/wmFPUemu_glue.cc
    gui/amigaos.cc gui/beos.cc gui/carbon.cc 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/siminterface.cc gui/siminterface.h
    gui/term.cc gui/win32.cc gui/wx.cc gui/wxmain.cc gui/wxmain.h
    gui/x.cc instrument/example0/instrument.cc
    instrument/example0/instrument.h
    instrument/example1/instrument.cc
    instrument/example1/instrument.h
    instrument/stubs/instrument.cc instrument/stubs/instrument.h
    iodev/cdrom.cc iodev/cdrom.h iodev/cdrom_osx.cc iodev/cmos.cc
    iodev/devices.cc iodev/dma.cc iodev/dma.h iodev/eth_arpback.cc
    iodev/eth_packetmaker.cc iodev/eth_packetmaker.h
    iodev/floppy.cc iodev/floppy.h iodev/guest2host.h
    iodev/harddrv.cc iodev/harddrv.h iodev/ioapic.cc
    iodev/ioapic.h iodev/iodebug.cc iodev/iodev.h
    iodev/keyboard.cc iodev/keyboard.h iodev/ne2k.h
    iodev/parallel.h iodev/pci.cc iodev/pci.h iodev/pic.h
    iodev/pit.cc iodev/pit.h iodev/pit_wrap.cc iodev/pit_wrap.h
    iodev/sb16.cc iodev/sb16.h iodev/serial.cc iodev/serial.h
    iodev/vga.cc iodev/vga.h memory/memory.h memory/misc_mem.cc
2002-10-25 11:44:41 +00:00
Bryce Denney
5e520261db 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
2002-10-24 21:07:56 +00:00
Kevin Lawton
361835824c unregisterTimer() really frees the timer slot. Added a new field
in pc_system.h to flag each timer slot as being allocated or not.
  register_timer*() functions will claim a free slot if one
  exists before using one at the end of the list.  This will allow
  for this function to be called repeatedly and not have to run
  out of timer slots.
2002-10-06 17:29:22 +00:00
Kevin Lawton
8ef1a6b8b0 Added a function to un-register a bochs timer, in case a component
wants to free up that resource.

  unsigned unregisterTimer(int timerID);

Pass in the timer index received from the register function.  A return
  of 1 means success.  NOTE: you must make sure the timer is deactivated
  first.  Call deactivate_timer() to be sure.  A return of 0 means
  failure, though a panic is really generated.

For now, this function does not really free up the slot, but will soon.
2002-10-06 14:55:06 +00:00
Kevin Lawton
f64eb0e16a Changed the hot countdown timer in pc_system.* files to be
32-bits rather than 64.  This is possible, because there is
  always an active null (heartbeat) timer, with periodicity
  of less than or equal to the maximum 32-bit int value.

  This generates a little less code in the hot part of cpu_loop,
  and saved about 3% execution time on a Win95 boot.

Moved the asynchronous handling code from cpu_loop() to its
  own function since it's a long path.  This neatened up the
  code a little (less gotos and all), and made it more clear
  to use a "while (1)" around the iterative code in cpu_loop().
2002-10-04 16:26:10 +00:00
Kevin Lawton
ee47fabac0 Committed new bochs internal timers (in pc_system.{cc,h}.
These seem to be working better, are a more simple design,
  easier to understand, and AFAIK don't have race conditions
  in them like the old ones do.

Re-coded the apic timer, to return cycle accurate values
  which vary with each iteration of a read from a guest OS.
  The previous implementation had very poor resolution.  It
  also didn't check the mask bit to see if an apic timer
  interrupt should occur on countdown to 0.  The apic timer
  now calls its own bochs timer, rather than tag on the
  one in iodev/devices.cc.

I needed to use one new function which is an inline in
  pc_sytem.h.  That would have to be added to the old pc_system.h if
  we have to back-out to it.

Linux/x86-64 now boots until it hits two undefined opcodes:

  FXRSTOR (0f ae).  This restores FPU, MMX, XMM and MXCSR registers
    from a 512-byte region of memory.  We don't implement this yet.

  MOVNTDQ (66 0f e7).  This is a move involving an XMM register.
    The 0x66 prefix is used so it's a double quadword, rather than
    MOVNTQ (0f e7) which operates on a single quadword.

  The Linux kernel panic is on the MOVNTQD opcodes.  Perhaps that's
  because that opcode is used in exception handling of the 1st?

  Looks like we need to implement some new instructions.
2002-10-03 15:47:13 +00:00
Kevin Lawton
83c9d266d0 Added a field on register_timer() so that a name identifying the
requesting source can be registered as well.  Otherwise, there
  is no way to know which source modules are requesting
  suspect frequencies which are too high.
2002-10-02 05:16:01 +00:00
Kevin Lawton
298c1d4ac5 Documented a number of the functions/variables in pc_system.h and
rearranged things to put all the timer related stuff together
  for sanity.
2002-09-30 17:32:34 +00:00
Bryce Denney
aee82fdde3 - eliminate unused warning on int cpu 2002-09-20 15:35:44 +00:00
Kevin Lawton
f0c9896964 Now, when you compile with --enable-guest2host-tlb, non-paged
mode uses the notion of the guest-to-host TLB.  This has the
benefit of allowing more uniform and streamlined acceleration
code in access.cc which does not have to check if CR0.PG
is set, eliminating a few instructions per guest access.
Shaved just a little off execution time, as expected.

Also, access_linear now breaks accesses which span two pages,
into two calls the the physical memory routines, when paging
is off, just like it always has for paging on.  Besides
being more uniform, this allows the physical memory access
routines to known the complete data item is contained
within a single physical page, and stop reapplying the
A20ADDR() macro to pointers as it increments them.
Perhaps things can be optimized a little more now there too...
I renamed the routines to {read,write}PhysicalPage() as
a reminder that these routines now operate on data
solely within one page.

I also added a little code so that the paging module is
notified when the A20 line is tweaked, so it can dump
whatever mappings it wants to.
2002-09-05 02:31:24 +00:00
Bryce Denney
c6c0667d2c - bx_devices.reset() method now takes one arg 2002-08-27 21:30:48 +00:00
Volker Ruppert
3d8bb578df - moved the timer init code from the constructor to init_ips() 2002-08-27 18:53:30 +00:00
Volker Ruppert
cb567008bd - new function reset() for bx_devices added (currently for PCI and floppy only,
we have to add more devices)
- device reset function is called on startup and after pressing the reset
  button in the headerbar
2002-08-01 12:19:01 +00:00
Volker Ruppert
c7c9cc2430 - DMA register and unregister functions for DMA channels added and macros for
DMA functions defined. Most of the changes are based on the "bochs sync"
   version of plex86. Here is the list of changes:

  * register/unregister functions for DMA channels added. The DMA controller
    can use the DMA read/write handlers of registered devices directly.
  * "hardwired" code in dma.cc removed
  * all DMA related code in devices.cc and iodev.h removed
  * DMA related code in pc_system.* removed except HRQ handling
  * macros for DMA functions defined in bochs.h
  * floppy and SB16 code modified to use the changes described above
2002-06-16 15:02:28 +00:00
Volker Ruppert
87e705a553 - implementation of transfer type 0 (verify) - dma write without writing to memory 2001-12-26 14:56:15 +00:00
Volker Ruppert
868af09f14 - dma16 read/write functions added (untested) 2001-12-18 13:14:46 +00:00
Bryce Denney
daf2a9fb55 - add RCS Id to header of every file. This makes it easier to know what's
going on when someone sends in a modified file.
2001-10-03 13:10:38 +00:00
Bryce Denney
009f98af81 - replace "long long" with Bit64 2001-09-24 00:35:42 +00:00
Gregory Alexander
9aa7a88028 Lots of timer stuff.
Fixed a "feature" in pc_system.cc with setting timers to small values
that can cause bochs to hang.

Significantly improved the performance of the new PIT.
It's probably ready to become the default now.

Added a preliminary implementation of the slowdown timer
that Bryce and I had talked about.
2001-08-18 03:28:23 +00:00