This file documents changes for QEMU releases 0.12 and earlier. For changelog information for later releases, see https://wiki.qemu.org/ChangeLog or look at the git history for more detailed information. version 0.12.0: - Update to SeaBIOS 0.5.0 - e1000: fix device link status in Linux (Anthony Liguori) - monitor: fix QMP for balloon command (Luiz Capitulino) - QMP: Return an empty dict by default (Luiz Capitulino) - QMP: Only handle converted commands (Luiz Capitulino) - pci: support PCI based option rom loading (Gerd Hoffman/Anthony Liguori) - Fix backcompat for hotplug of SCSI controllers (Daniel P. Berrange) - fdc: fix migration from 0.11 (Juan Quintela) - vmware-vga: fix segv on cursor resize. (Dave Airlie) - vmware-vga: various fixes (Dave Airlie/Anthony Liguori) - qdev: improve property error reporting. (Gerd Hoffmann) - fix vga names in default_list (Gerd Hoffmann) - usb-host: check mon before using it. (Gerd Hoffmann) - usb-net: use qdev for -usbdevice (Gerd Hoffmann) - monitor: Catch printing to non-existent monitor (Luiz Capitulino) - Avoid permanently disabled QEMU monitor when UNIX migration fails (Daniel P. Berrange) - Fix loading of ELF multiboot kernels (Kevin Wolf) - qemu-io: Fix memory leak (Kevin Wolf) - Fix thinko in linuxboot.S (Paolo Bonzini) - target-i386: Fix evaluation of DR7 register (Jan Kiszka) - vnc: hextile: do not generate ForegroundSpecified and SubrectsColoured tiles (Anthony Liguori) - S390: Bail out without KVM (Alexander Graf) - S390: Don't tell guest we're updating config space (Alexander Graf) - target-s390: Fail on unknown instructions (Alexander Graf) - osdep: Fix runtime failure on older Linux kernels (Andre Przywara) - Fix a make -j race (Juergen Lock) - target-alpha: Fix generic ctz64. (Richard Henderson) - s390: Fix buggy assignment (Stefan Weil) - target-mips: fix user-mode emulation startup (Nathan Froyd) - target-i386: Update CPUID feature set for TCG (Andre Przywara) - s390: fix build on 32 bit host (Michael S. Tsirkin) version 0.12.0-rc2: - v2: properly save kvm system time msr registers (Glauber Costa) - convert more monitor commands to qmp (Luiz Capitulino) - vnc: fix capslock tracking logic. (Gerd Hoffmann) - QemuOpts: allow larger option values. (Gerd Hoffmann) - scsi: fix drive hotplug. (Gerd Hoffmann) - pci: don't hw_error() when no slot is available. (Gerd Hoffmann) - pci: don't abort() when trying to hotplug with acpi off. (Gerd Hoffmann) - allow default devices to be implemented in config file (Gerd Hoffman) - vc: colorize chardev title line with blue background. (Gerd Hoffmann) - chardev: make chardevs specified in config file work. (Gerd Hoffmann) - qdev: also match bus name for global properties (Gerd Hoffmann) - qdev: add command line option to set global defaults for properties. (Gerd Hoffmann) - kvm: x86: Save/restore exception_index (Jan Kiszka) - qdev: Replace device names containing whitespace (Markus Armbruster) - fix rtc-td-hack on host without high-res timers (Gleb Natapov) - virtio: verify features on load (Michael S. Tsirkin) - vmware_vga: add rom file so that it boots. (Dave Airlie) - Do not abort on qemu_malloc(0) in production builds (Anthony Liguori) - Fix ARM userspace strex implementation. (Paul Brook) - qemu: delete rule target on error (Michael S. Tsirkin) - QMP: add human-readable description to error response (Markus Armbruster) - convert more monitor commands to QError (Markus Armbruster) - monitor: Fix double-prompt after "change vnc passwd BLA" (Markus Armbruster) - monitor: do_cont(): Don't ask for passwords (Luiz Capitulino) - monitor: Introduce 'block_passwd' command (Luiz Capitulino) - pci: interrupt disable bit support (Michael S. Tsirkin) - pci: interrupt status bit implementation (Michael S. Tsirkin) - pci: prepare irq code for interrupt state (Michael S. Tsirkin) - msix: function mask support (Michael S. Tsirkin) - msix: macro rename for function mask support (Michael S. Tsirkin) - cpuid: Fix multicore setup on Intel (Andre Przywara) - kvm: x86: Fix initial kvm_has_msr_star (Jan Kiszka) - Update OpenBIOS images to r640 (Aurelien Jarno) version 0.10.2: - fix savevm/loadvm (Anthony Liguori) - live migration: fix dirty tracking windows (Glauber Costa) - live migration: improve error propagation (Glauber Costa) - qcow2: fix image creation for > ~2TB images (Chris Wright) - hotplug: fix error handling for if= parameter (Eduardo Habkost) - qcow2: fix data corruption (Nolan Leake) - virtio: fix guest oops with 2.6.25 kernels (Rusty Russell) - SH4: add support for -kernel (Takashi Yoshii, Aurelien Jarno) - hotplug: fix closing of char devices (Jan Kiszka) - hotplug: remove incorrect check for device name (Eduardo Habkost) - enable -k on win32 (Herve Poussineau) - configure: use LANG=C for grep (Andreas Faerber) - fix VGA regression (malc) version 0.10.1: - virtio-net: check right return size on sg list (Alex Williamson) - Make qemu_announce_self handle holes (live migration after hotplug) (Marcelo Tosatti) - Revert r6804-r6808 (qcow2 allocation info). This series of changes added a high cost to startup for large qcow2 images (Anthony Liguori) - qemu-img: fix help message (Aurelien Jarno) - Fix build for non-default installs of SDL (Anthony Liguori) - Fix race condition in env->interrupt_request. When using TCG and a dynticks host timer, this condition could cause TCG to get stuck in an infinite loop (Aurelien Jarno) - Fix reading encrypted hard disk passwords during early startup (Jan Kiszka) - Fix encrypted disk reporting in 'info block' (Jan Kiszka) - Fix console size with tiny displays (MusicPal) (Jan Kiszka) - Improve error handling in bdrv_open2 (Jan Kiszka) - Avoid leaking data in mux'ed character devices (Jan Kiszka) - Fix initial character device reset (no banner in monitor) (Jan Kiszka) - Fix cpuid KVM crash on i386 host (Lubomir Rintel) - Fix SLES10sp2 installation by adding ISTAT1 register to LSI SCSI emulation (Ryan Harper) version 0.10.0: - TCG support (No longer requires GCC 3.x) - Kernel Virtual Machine acceleration support - BSD userspace emulation - Bluetooth emulation and host passthrough support - GDB XML register description support - Intel e1000 emulation - HPET emulation - VirtIO paravirtual device support - Marvell 88w8618 / MusicPal emulation - Nokia N-series tablet emulation / OMAP2 processor emulation - PCI hotplug support - Live migration and new save/restore formats - Curses display support - qemu-nbd utility to mount supported block formats - Altivec support in PPC emulation and new firmware (OpenBIOS) - Multiple VNC clients are now supported - TLS encryption is now supported in VNC - MIPS Magnum R4000 machine (Hervé Poussineau) - Braille support (Samuel Thibault) - Freecom MusicPal system emulation (Jan Kiszka) - OMAP242x and Nokia N800, N810 machines (Andrzej Zaborowski) - EsounD audio driver (Frederick Reeve) - Gravis Ultrasound GF1 sound card (Tibor "TS" Schütz) - Many, many, bug fixes and new features version 0.9.1: - TFTP booting from host directory (Anthony Liguori, Erwan Velu) - Tap device emulation for Solaris (Sittichai Palanisong) - Monitor multiplexing to several I/O channels (Jason Wessel) - ds1225y nvram support (Herve Poussineau) - CPU model selection support (J. Mayer, Paul Brook, Herve Poussineau) - Several Sparc fixes (Aurelien Jarno, Blue Swirl, Robert Reif) - MIPS 64-bit FPU support (Thiemo Seufer) - Xscale PDA emulation (Andrzej Zaborowski) - ColdFire system emulation (Paul Brook) - Improved SH4 support (Magnus Damm) - MIPS64 support (Aurelien Jarno, Thiemo Seufer) - Preliminary Alpha guest support (J. Mayer) - Read-only support for Parallels disk images (Alex Beregszaszi) - SVM (x86 virtualization) support (Alexander Graf) - CRIS emulation (Edgar E. Iglesias) - SPARC32PLUS execution support (Blue Swirl) - MIPS mipssim pseudo machine (Thiemo Seufer) - Strace for Linux userland emulation (Stuart Anderson, Thayne Harbaugh) - OMAP310 MPU emulation plus Palm T|E machine (Andrzej Zaborowski) - ARM v6, v7, NEON SIMD and SMP emulation (Paul Brook/CodeSourcery) - Gumstix boards: connex and verdex emulation (Thorsten Zitterell) - Intel mainstone II board emulation (Armin Kuster) - VMware SVGA II graphics card support (Andrzej Zaborowski) version 0.9.0: - Support for relative paths in backing files for disk images - Async file I/O API - New qcow2 disk image format - Support of multiple VM snapshots - Linux: specific host CDROM and floppy support - SMM support - Moved PCI init, MP table init and ACPI table init to Bochs BIOS - Support for MIPS32 Release 2 instruction set (Thiemo Seufer) - MIPS Malta system emulation (Aurelien Jarno, Stefan Weil) - Darwin userspace emulation (Pierre d'Herbemont) - m68k user support (Paul Brook) - several x86 and x86_64 emulation fixes - Mouse relative offset VNC extension (Anthony Liguori) - PXE boot support (Anthony Liguori) - '-daemonize' option (Anthony Liguori) version 0.8.2: - ACPI support - PC VGA BIOS fixes - switch to OpenBios for SPARC targets (Blue Swirl) - VNC server fixes - MIPS FPU support (Marius Groeger) - Solaris/SPARC host support (Juergen Keil) - PPC breakpoints and single stepping (Jason Wessel) - USB updates (Paul Brook) - UDP/TCP/telnet character devices (Jason Wessel) - Windows sparse file support (Frediano Ziglio) - RTL8139 NIC TCP segmentation offloading (Igor Kovalenko) - PCNET NIC support (Antony T Curtis) - Support for variable frequency host CPUs - Workaround for win32 SMP hosts - Support for AMD Flash memories (Jocelyn Mayer) - Audio capture to WAV files support (malc) version 0.8.1: - USB tablet support (Brad Campbell, Anthony Liguori) - win32 host serial support (Kazu) - PC speaker support (Joachim Henke) - IDE LBA48 support (Jens Axboe) - SSE3 support - Solaris port (Juergen Keil) - Preliminary SH4 target (Samuel Tardieu) - VNC server (Anthony Liguori) - slirp fixes (Ed Swierk et al.) - USB fixes - ARM Versatile Platform Baseboard emulation (Paul Brook) version 0.8.0: - ARM system emulation: Arm Integrator/CP board with an arm1026ej-s cpu (Paul Brook) - SMP support - Mac OS X cocoa improvements (Mike Kronenberg) - Mac OS X CoreAudio driver (Mike Kronenberg) - DirectSound driver (malc) - ALSA audio driver (malc) - new audio options: '-soundhw' and '-audio-help' (malc) - ES1370 PCI audio device (malc) - Initial USB support - Linux host serial port access - Linux host low level parallel port access - New network emulation code supporting VLANs. - MIPS and MIPSel User Linux emulation - MIPS fixes to boot Linux (Daniel Jacobowitz) - NX bit support - Initial SPARC SMP support (Blue Swirl) - Major overhaul of the virtual FAT driver for read/write support (Johannes Schindelin) version 0.7.2: - x86_64 fixes (Win2000 and Linux 2.6 boot in 32 bit) - merge self modifying code handling in dirty ram page mecanism. - MIPS fixes (Ralf Baechle) - better user net performances version 0.7.1: - read-only Virtual FAT support (Johannes Schindelin) - Windows 2000 install disk full hack (original idea from Vladimir N. Oleynik) - VMDK disk image creation (Filip Navara) - SPARC64 progress (Blue Swirl) - initial MIPS support (Jocelyn mayer) - MIPS improvements (Ralf Baechle) - 64 bit fixes in user networking (initial patch by Gwenole Beauchesne) - IOAPIC support (Filip Navara) version 0.7.0: - better BIOS translation and HDD geometry auto-detection - user mode networking bug fix - undocumented FPU ops support - Cirrus VGA: support for 1280x1024x[8,15,16] modes - 'pidfile' option - .dmg disk image format support (Johannes Schindelin) - keymaps support (initial patch by Johannes Schindelin) - big endian ARM support (Lennert Buytenhek) - added generic 64 bit target support - x86_64 target support - initial APIC support - MMX/SSE/SSE2/PNI support - PC parallel port support (Mark Jonckheere) - initial SPARC64 support (Blue Swirl) - SPARC target boots Linux (Blue Swirl) - armv5te user mode support (Paul Brook) - ARM VFP support (Paul Brook) - ARM "Angel" semihosting syscalls (Paul Brook) - user mode gdb stub support (Paul Brook) - Samba 3 support - initial Cocoa support (Pierre d'Herbemont) - generic FPU emulation code - Virtual PC read-only disk image support (Alex Beregszaszi) version 0.6.1: - Mac OS X port (Pierre d'Herbemont) - Virtual console support - Better monitor line edition - New block device layer - New 'qcow' growable disk image support with AES encryption and transparent decompression - VMware 3 and 4 read-only disk image support (untested) - Support for up to 4 serial ports - TFTP server support (Magnus Damm) - Port redirection support in user mode networking - Support for not executable data sections - Compressed loop disk image support (Johannes Schindelin) - Level triggered IRQ fix (aka NE2000 PCI performance fix) (Steve Wormley) - Fixed Fedora Core 2 problems (now you can run qemu without any LD_ASSUME_KERNEL tricks on FC2) - DHCP fix for Windows (accept DHCPREQUEST alone) - SPARC system emulation (Blue Swirl) - Automatic Samba configuration for host file access from Windows. - '-loadvm' and '-full-screen' options - ne2000 savevm support (Johannes Schindelin) - Ctrl-Alt is now the default grab key. Ctrl-Alt-[0-9] switches to the virtual consoles. - BIOS floppy fix for NT4 (Mike Nordell, Derek Fawcus, Volker Ruppert) - Floppy fixes for NT4 and NT5 (Mike Nordell) - NT4 IDE fixes (Ben Pfaf, Mike Nordell) - SDL Audio support and SB16 fixes (malc) - ENTER instruction bug fix (initial patch by Stefan Kisdaroczi) - VGA font change fix - VGA read-only CRTC register fix version 0.6.0: - minimalist FPU exception support (NetBSD FPU probe fix) - cr0.ET fix (Win95 boot) - *BSD port (Markus Niemisto) - I/O access fix (signaled by Mark Jonckheere) - IDE drives serial number fix (Mike Nordell) - int13 CDROM BIOS fix (aka Solaris x86 install CD fix) - int15, ah=86 BIOS fix (aka Solaris x86 hardware probe hang up fix) - BSR/BSF "undefined behaviour" fix - vmdk2raw: convert VMware disk images to raw images - PCI support - NE2K PCI support - dummy VGA PCI support - VGA font selection fix (Daniel Serpell) - PIC reset fix (Hidemi KAWAI) - PIC spurious irq support (aka Solaris install bug) - added '-localtime' option - Cirrus CL-GD54xx VGA support (initial patch by Makoto Suzuki (suzu)) - APM and system shutdown support - Fixed system reset - Support for other PC BIOSes - Initial PowerMac hardware emulation - PowerMac/PREP OpenFirmware compatible BIOS (Jocelyn Mayer) - initial IDE BMDMA support (needed for Darwin x86) - Set the default memory size for PC emulation to 128 MB version 0.5.5: - SDL full screen support (initial patch by malc) - VGA support on PowerPC PREP - VBE fixes (Matthew Mastracci) - PIT fixes (aka Win98 hardware probe and "VGA slowness" bug) - IDE master only fixes (aka Win98 CD-ROM probe bug) - ARM load/store half word fix (Ulrich Hecht) - FDC fixes for Win98 version 0.5.4: - qemu-fast fixes - BIOS area protection fix (aka EMM386.EXE fix) (Mike Nordell) - keyboard/mouse fix (Mike Nordell) - IDE fixes (Linux did not recognized slave drivers) - VM86 EIP masking fix (aka NT5 install fix) (Mike Nordell) - QEMU can now boot a PowerPC Linux kernel (Jocelyn Mayer) - User mode network stack - imul imm8 fix + 0x82 opcode support (Hidemi KAWAI) - precise self modifying code (aka BeOS install bug) version 0.5.3: - added Bochs VESA VBE support - VGA memory map mode 3 access fix (OS/2 install fix) - IDE fixes (Jens Axboe) - CPU interrupt fixes - fixed various TLB invalidation cases (NT install) - fixed cr0.WP semantics (XP install) - direct chaining support for SPARC and PowerPC (faster) - ARM NWFPE support (initial patch by Ulrich Hecht) - added specific x86 to x86 translator (close to native performance in qemu-i386 and qemu-fast) - shm syscalls support (Paul McKerras) - added accurate CR0.MP/ME/TS emulation - fixed DMA memory write access (Win95 boot floppy fix) - graphical x86 linux loader - command line monitor - generic removable device support - support of CD-ROM change - multiple network interface support - initial x86-64 host support (Gwenole Beauchesne) - lret to outer privilege fix (OS/2 install fix) - task switch fixes (SkyOS boot) - VM save/restore commands - new timer API - more precise RTC emulation (periodic timers + time updates) - Win32 port (initial patch by Kazu) version 0.5.2: - improved soft MMU speed (assembly functions and specializing) - improved multitasking speed by avoiding flushing TBs when switching tasks - improved qemu-fast speed - improved self modifying code handling (big performance gain in softmmu mode). - fixed IO checking - fixed CD-ROM detection (win98 install CD) - fixed addseg real mode bug (GRUB boot fix) - added ROM memory support (win98 boot) - fixed 'call Ev' in case of paging exception - updated the script 'qemu-binfmt-conf.sh' to use QEMU automagically when launching executables for the supported target CPUs. - PowerPC system emulation update (Jocelyn Mayer) - PC floppy emulation and DMA fixes (Jocelyn Mayer) - polled mode for PIC (Jocelyn Mayer) - fixed PTE dirty bit handling - fixed xadd same reg bug - fixed cmpxchg exception safeness - access to virtual memory in gdb stub - task gate and NT flag fixes - eflags optimisation fix for string operations version 0.5.1: - float access fixes when using soft mmu - PC emulation support on PowerPC - A20 support - IDE CD-ROM emulation - ARM fixes (Ulrich Hecht) - SB16 emulation (malc) - IRET and INT fixes in VM86 mode with IOPL=3 - Port I/Os use TSS io map - Full task switching/task gate support - added verr, verw, arpl, fcmovxx - PowerPC target support (Jocelyn Mayer) - Major SPARC target fixes (dynamically linked programs begin to work) version 0.5.0: - full hardware level VGA emulation - graphical display with SDL - added PS/2 mouse and keyboard emulation - popw (%esp) fix - mov to/from segment data width fix - added real mode support - added Bochs BIOS and LGPL'ed VGA BIOS loader in qemu - m68k host port (Richard Zidlicky) - partial soft MMU support for memory mapped I/Os - multi-target build - fixed: no error code in hardware interrupts - fixed: pop ss, mov ss, x and sti disable hardware irqs for the next insn - correct single stepping through string operations - preliminary SPARC target support (Thomas M. Ogrisegg) - tun-fd option (Rusty Russell) - automatic IDE geometry detection - renamed 'vl' to qemu[-fast] and user qemu to qemu-{cpu}. - added man page - added full soft mmu mode to launch unpatched OSes. version 0.4.3: - x86 exception fix in case of nop instruction. - gcc 3.2.2 bug workaround (RedHat 9 fix) - sparc and Alpha host fixes - many ARM target fixes: 'ls' and 'bash' can be launched. version 0.4.2: - many exception handling fixes (can compile a Linux kernel inside vl) - IDE emulation support - initial GDB stub support - deferred update support for disk images (Rusty Russell) - accept User Mode Linux Copy On Write disk images - SMP kernels can at least be booted version 0.4.1: - more accurate timer support in vl. - more reliable NE2000 probe in vl. - added 2.5.66 kernel in vl-test. - added VLTMPDIR environment variable in vl. version 0.4: - initial support for ring 0 x86 processor emulation - fixed signal handling for correct dosemu DPMI emulation - fast x86 MMU emulation with mmap() - fixed popl (%esp) case - Linux kernel can be executed by QEMU with the 'vl' command. version 0.3: - initial support for ARM emulation - added fnsave, frstor, fnstenv, fldenv FPU instructions - added FPU register save in signal emulation - initial ARM port - Sparc and Alpha ports work on the regression test - generic ioctl number conversion - fixed ioctl type conversion version 0.2: - PowerPC disassembly and ELF symbols output (Rusty Russell) - flock support (Rusty Russell) - ugetrlimit support (Rusty Russell) - fstat64 fix (Rusty Russell) - initial Alpha port (Falk Hueffner) - initial IA64 port (Matt Wilson) - initial Sparc and Sparc64 port (David S. Miller) - added HLT instruction - LRET instruction fix. - added GPF generation for I/Os. - added INT3 and TF flag support. - SHL instruction C flag fix. - mmap emulation for host page size > 4KB - self-modifying code support - better VM86 support (dosemu works on non trivial programs) - precise exception support (EIP is computed correctly in most cases) - more precise LDT/GDT/IDT emulation - faster segment load in vm86 mode - direct chaining of basic blocks (faster emulation) version 0.1.6: - automatic library search system. QEMU can now work with unpatched ELF dynamic loader and libc (Rusty Russell). - ISO C warning fixes (Alistair Strachan) - first self-virtualizable version (works only as long as the translation cache is not flushed) - RH9 fixes version 0.1.5: - ppc64 support + personality() patch (Rusty Russell) - first Alpha CPU patches (Falk Hueffner) - removed bfd.h dependency - fixed shrd, shld, idivl and divl on PowerPC. - fixed buggy glibc PowerPC rint() function (test-i386 passes now on PowerPC). version 0.1.4: - more accurate VM86 emulation (can launch small DOS 16 bit executables in wine). - fixed push/pop fs/gs - added iret instruction. - added times() syscall and SIOCATMARK ioctl. version 0.1.3: - S390 support (Ulrich Weigand) - glibc 2.3.x compile fix (Ulrich Weigand) - socketcall endian fix (Ulrich Weigand) - struct sockaddr endian fix (Ulrich Weigand) - sendmsg/recvmsg endian fix (Ulrich Weigand) - execve endian fix (Ulrich Weigand) - fdset endian fix (Ulrich Weigand) - partial setsockopt syscall support (Ulrich Weigand) - more accurate pushf/popf emulation - first partial vm86() syscall support (can be used with runcom example). - added bound, cmpxchg8b, cpuid instructions - added 16 bit addressing support/override for string operations - poll() fix version 0.1.2: - compile fixes - xlat instruction - xchg instruction memory lock - added simple vm86 example (not working with QEMU yet). The 54 byte DOS executable 'pi_10.com' program was released by Bertram Felgenhauer (more information at http://www.boo.net/~jasonp/pipage.html). version 0.1.1: - glibc 2.2 compilation fixes - added -s and -L options - binary distribution of x86 glibc and wine - big endian fixes in ELF loader and getdents. version 0.1: - initial public release.