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Robert

Bochs 2.6 released

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http://sourceforge.net/projects/bochs/files/

 

Changes in 2.6 (September 2, 2012):

 

Brief summary :

- More than 10% CPU emulation speedup !

- Support for AMD's SVM hardware emulation (including extended XAPIC support).

- Implemented support for new x86 ISA extensions. Bochs is fully aligned with rev043 of Intel® Architecture Manual.

- Improved emulation accuracy (critical fixes for APIC, VMX and AVX/XOP emulation).

- Bochs internal debugger: new command to show state of a device from the debugger.

- ROM BIOS: improved PCI boot ROM support (for VGA and other devices)

- Networking:

- Ported Intel® 82540EM Gigabit Ethernet adapter emulation from Qemu.

- Added PCI network boot ROM support to all network adapters.

- Added TFTP support to the 'slirp' networking module.

- Harddrive: added support for VirtualPC disk images, fixed sparse disk images.

- Sound:

- implemented PC speaker beep using the lowlevel sound interface.

- SDL audio output support.

- Added ability to set log action per device from .bochsrc.

- Moved disk imaging, networking, sound and USB devices to subdirectories in the iodev folder.

 

Detailed change log :

 

- CPU

- Implemented EPT A/D extensions support. Bochs is fully aligned with rev043 of the of Intel® Architecture Manual.

- Implemented ADX (ADCX/ADOX) instructions support, the feature can be enabled using .bochsrc CPUID option.

- More than 10% CPU emulation speedup with even more optimal lazy flags handling, stack access optimizations and cross branch trace linking.

- Support for AMD's SVM hardware emulation in Bochs CPU, to enable configure with --enable-svm option

- Implemented AMD Extended XAPIC support, to enable set .bochsrc CPU APIC option to 'xapic_ext'

! Added Corei5 750 (Lynnfield) configuration to the CPUDB

! Added Turion64 (Tyler) configuration to the CPUDB

! Added AMD Phenom X3 8650 (Toliman) configuration to the CPUDB

! Added Corei7 3770K (Ivy Bridge) configuration to the CPUDB

- Bugfixes for CPU emulation correctness and stability (critical fixes for APIC/X2APIC, VMX and AVX/XOP emulation)

 

- Bochs Debugger and Instrumentation

- Implemented new debugger command 'info device [string]' that shows the state of the device specified in 'string'

- Improved debug dump for ne2k, pci, pic and vga/cirrus devices. Added debug dump for pci2isa, i/o apic, cmos, pit, floppy and dma devices.

- Added TLB to CPU param tree - now it can be browsed from Bochs internal debugger and Bochs debugger GUI through param tree interfaces

- Implemented 'writemem' debugger command to dump virtual memory block starting from selected linear address into a file

- Updated definition of instrumentation callbacks, see description in instrumentation.txt / Fixed instrumentation examples

 

- Configure and compile

- Moved disk imaging, networking, sound and USB devices to subdirectories in the iodev folder.

- pcidev: enable support for Linux kernel 3.x (Debian patch by Guillem Jover)

- debugger: generate parser / lexer files only if all required tools are present

 

- Config interface

- Added support for direct device plugin loading with bochsrc directive for devices which have the same name for the plugin and config option.

- The bochsrc option 'plugin_ctrl' can now be used to load/unload optional plugins directly when parsing the config file or command line. See the bochsrc sample for supported devices.

- Moved bochsrc parsing / writing and config parameter handling for networking,

sound and USB devices to the plugin device code. The options are only available when the corresponding plugin device is loaded.

- Added ability to set log action per device from .bochsrc.

- Added new command line option '-noconsole' to disable the console window on Windows host.

- Renamed PCI Pseudo NIC option to "pcipnic" (for direct plugin loading)

- Moved several related options to the new "keyboard" bochsrc option.

- Added new parameter 'rtc_sync' for the 'clock' option. If this option is enabled together with the realtime synchronization, the RTC runs at realtime speed.

- Moved MWAIT_IS_NOP bochsrc option from CPUID to CPU so it can be set even if cpu was configured using pre-defined CPUDB profile.

- Allow larger CPU 'quantum' values when emulating SMP systems for speed (quantum values up to 32 are allowed now).

 

- I/O Devices

- Networking

- Ported Intel® 82540EM Gigabit Ethernet adapter emulation from Qemu, to enable configure with option --enable-e1000

- Added PCI network boot ROM support to all network adapters

- Added TFTP support to the 'slirp' networking module

- PCI

- added "auto-assign to PCI slot" feature for PCI-only devices

- DMA

- Added the capability to transfer more then one byte / word per ISA DMA cycle

- VGA

- Major rewrite of the vga / cirrus code:

- vgacore (shared standard VGA emulation code)

- vga (Bochs VBE and PCI VGA)

- cirrus (CL-GD 5430 ISA / CL-GD 5446 PCI)

- Added VGA graphics blinking support

- More accurate vertical and horizontal retrace emulation (based on the DOSBox implementation)

- hard drive / hdimage

- added new disk image mode 'vpc' for VirtualPC images

- undoable mode: added coherency check (flat image size and timestamp)

- sparse mode: fixed read support

- Sound

- implemented PC speaker beep using the lowlevel sound interface

- added SDL audio output support

 

- ROM BIOS

- improved PCI boot ROM support (for VGA and other devices)

- added MADT entry for Interrupt Source Override to ACPI tables

 

- GUI and display libraries

- implemented "auto-off" timer for status LEDs indicating a data transfer

- Added support for sending absolute mouse position values from the gui if an absolute pointing device (USB tablet) is active (rfb, sdl, win32, wx, x).

- Gui debugger now supported when using sdl gui on Windows

- Implemented "hideIPS" option in rfb, sdl, win32 and wx libraries

- wx: fixed random freezes with wxGTK and "show ips" feature enabled

- rfb: the "show ips" feature now works on Windows host

 

- Tools

- bxcommit: added support for converting growing to flat mode images

- bxcommit: support command line options and non-interactive (quiet) mode

- bximage: increased maximum disk size to 8 TB

 

- SF patches applied

[3540389] Patch 5 : Change memory reference functions argument order by Yeong-uk Jo

[3539254] Patch 4 : Memory reference optimization 2 by Yeong-uk Jo

[3539251] Patch 3 : Memory reference optimization by Yeong-uk Jo

[3539237] Patch 2 : Some optimization by Yeong-uk Jo

[3539228] Patch 1 : ROM BIOS Compatibility patch by Yeong-uk Jo

[3505209] Fixed combo box size by Konrad Grochowski

[2864391] Gui debugger default regs by Thomas Nilsen

[3486555] Fix critical stack leak in Win32 GUI by Carlo Bramini

 

- these S.F. bugs were closed/fixed

[625877] wx: power button -> thread deadlock

[3534063] Configure does not check for flex presence

[3555237] NE2000 doesn't compile on OS/X

[3553168] X doesn't build in latest code on OS/X

[3550175] Crash when saving snapshot to directory instead of file

[3548109] VMX State Not Restored After Entering SMM on 32-bit Systems

[3548108] VMEXIT Instruction Length Not Always Getting Updated

[3545941] Typo in preprocessor symbol

[3538731] Missing CR8 register

[3538574] Missing XD flag ( Execute Disable ) when showing PTEs

[3537556] Missing initializations

[3537309] Unable to use the debug GUI with SDL and plugins

[3537473] GUI debugger only shows 32-bit CRx registers in x86-64 mode

[3533426] UHCI PCI interrupts

[3459359] svga cirrus initialization

[3535228] info gdt does not show long mode segments

[3531806] Bochs crashes (SIGSEGV) when starting via ssh console

[3531807] Various missing initialization values reported by Valgrind

[635789] mapping mode 0 not supported

[3307201] BOCHS panics when execute HBIOS.COM

[3528809] IO APIC index register width

[3528516] Missing #if in soundmod.h

[3526069] MADT:Interrupt Source Override missed

[3518753] update dump after manual chages to memory contents

[3516859] bug in svn e1000 module

[3516029] stepping not working in debugger GUI in case of smp vm

[3510403] closing config dialog box closes entire simulator

[3459998] Bochs cannot be compiled outside the source tree

[2905969] can't use --enable-gdb-stub on vs2008

[3294001] Bochs GUI doesn't appear properly for 2nd Bochs copy

[3493315] Changing VGA 9/8 dot mode causes screen corruption

 

- these S.F. feature requests were closed/implemented

[3540441] automatically enable devices in plugin control

[1251456] command line method to query bochs for features

[3409396] sdl sound

[3519794] debugger's ability to save physical/linear memory dumps

[1429612] Idea how to speedup simulation - stack direct access

[1703452] Other Network Devices?

[2919376] Disable show the console window

[534271] can't set log action by device (bochsrc)

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