ChangeLog: Difference between revisions
From KVM
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= version 3 [15 nov 2006] = | = version 3 [15 nov 2006] = | ||
[Avi | [Avi Kivity retained the natural number versioning after he contemplated the | ||
confusion that can arise from having releases 1, 2, and 0.3] | confusion that can arise from having releases 1, 2, and 0.3] | ||
Revision as of 14:33, 1 October 2007
version 44 [23 sep 2007]
- fix smp guest boot
- fix IDE emulation bug with newer guest kernels (S.Çağlar Onur)
- support VMware server as guest (Ryan Harper)
- fix smp race in shadow code (Izik Eidus)
- allow guest page faults to bypass kvm on Intel (performance boost)
version 43 [21 sep 2007]
- fix ioapic edge-triggered interrupt handling
version 42 [20 sep 2007]
- important host oops fix
- document -no-kvm-irqchip option in qemu help message (Carlo Marcelo Arenas Belon)
- acpi bios: export pci irqs as active high
- avoid redelivery of edge-triggered ioapic interrupts if already in service
- implement ioapic polarity
- fix x86 emulator merge problems (Nitin A Kamble, Laurent Vivier)
- fix x86 repne decoding (fixes OpenBSD boot regression) (Laurent Vivier)
- install kvm_para.h (Gerd Hoffman)
version 41 [19 sep 2007]
- refactor hypercall infrastructure for simplicity and better smp support (Anthony Liguori)
- fix ioapic level triggered interrupt redelivers (solves networking stalls)
- reduce efer reloads with 32-bit guests; minor performance improvement
- split x86 emulator decode and execute stages (Laurent Vivier)
- fix pic interrupt delivery (solves time going double speed on x86_64 Linux guests) (Qing He)
- adaptive live migration bandwidth limits (Uri Lublin)
version 40 [16 sep 2007]
- fix guest reboot (most scenarios)
- further x86 emulator work (Nitin A Kamble)
- compile fixes for older kernels
- make the external module work again
version 39 [12 sep 2007]
- provide div64_64() for older kernels
- improve emulation failure reporting
- more x86 emulator work (push imm8, pushf, call near) (Nitin A Kamble)
- don't use TPR shadow on i386 (Sheng Yang)
version 38 [12 sep 2007]
- fix fpu indication for Solaris (Amit Shah)
- Avoid GFP_NOWAIT allocation in mmu
- Fix runtime smp_processor_id() warning in lapic
- Move vcpu loop into subarch independent loop
- Rename kvm_arch_ops to kvm_x86_ops (Christian Ehrhardt)
- Fix missing "genapic" on i386 (Eddie Dong)
- Fix lapic hrtimer migration (Qing He)
- Fix lapic 64-bit division on i386 (Jindrich Makovicka)
- Simplify memory allocation ioctl (Laurent vivier)
- Keep control register shadows in sync (Rusty Russell)
- Retire invlpg (Rusty Russell)
- Expose get_cs_db_l_bits for kvm-lite (Rusty Russell)
- Fix network boot (Anthony Liguori)
- Round up memory in libkvm (Anthony Liguori)
- Fix option ROM loading (Anthony Liguori)
- Revert FACP ACPI change for Vista
- Fix segfault with -no-kvm
- lapic hrtimer external module compatibility (Qing He, Avi Kivity)
- improved (still imprefect) reboot
- better bios smp detection
version 37 [9 sep 2007]
- in-kernel lapic, ioapic, and pic (Eddie Dong, Qing He, Sheng Yang, Gregory Haskins, Dor Laor, Avi Kivity)
- split segment reload (vmx microoptimization) (Laurent Vivier)
- fix vga redraw regression (Izik Eidus)
- fix testsuite compilation with older assemblers (H. Peter Anvin)
version 36 [22 aug 2007]
- support guests with more than 2GB of RAM on 64-bit hosts (Izik Eidus)
- fix rare host oops on guest context switch
- avoid smp_call_function_single() warning on suspend/resume
- more real mode emulator work (Nitin A Kamble)
- Windows x64 support (Sheng Yang)
- close minor signal handling race
- carry bios in kvm source tree for easier maintenance
- fix -std-vga (Uri Lublin)
- advertise kvm in vnc window title (Matthew Kent)
- fix Windows SMP guests consuming cpu time when idle (Igor Lvovsky)
version 35 [15 aug 2007]
- fix kvm refusing to load on Core processors (Glauber de Oliveira Costa)
- improve qemu monitor handling CR/LF sequences (Jim Paris)
- fix compile warning in qemu (Luca Tettamanti)
version 34 [13 aug 2007]
- make kvm preemptible
- allow calling sleeping functions in the kvm exit handlers (Shaohua Li)
- this is a first step in getting guest swapping
- fix running kvm on nx-incapable host kernel on nx-capable hardware
- fix more fallback from the x86 emulator writeback changes (Aurelien Jarno, Avi Kivity)
- remove vmx specific code from subarch independent code (Gregory Haskins)
- allocate vcpus as needed (Rusty Russell)
- consolidate x86 emulator guest read/write code (Laurent Vivier)
- cleanup string pio instruction emulation (Laurent Vivier)
- ensure all cpus have the same vmx features (Sheng Yang)
- version string for external module
- disable long mode capability bit on 32-bit kernels
- fix qemu -isapc (Uri Lublin)
- fixes for smp live migration
- this is still raw
- fix unhandled wrmsr MSR_CSTAR on i386 (Luca Tettamanti)
- some migration fixes (Jim Paris)
- the usual cleanups and minor fixes (various but mostly Rusty)
version 33 [23 jul 2007]
- fix massive performance regression
version 32 [23 jul 2007]
- fix oops with the slub allocator (CONFIG_SLUB)
- fix cmov instruction emulation, trashed by the mmio rmw fix
- fix rare, silent data corruption on writes that cross a page boundary and touch a page table (Aurelien Jarno, Avi Kivity)
- fix race between vm creation and vcpu hotunplug (Rusty Russell)
- fix guest turning on pae with invalid pdptres (Rusty Russell)
- adapt external module to changed kmem_cache_create() api
- allow external module on 2.6.22 i386 nonpae
- fix regression in network throughput caused by guest smp changes (Aurelien Jarno, Avi Kivity)
- live migration updates (Uri Lublin)
- minor cleanups (Nguyen Anh Quynh, Avi Kivity)
version 31 [19 jul 2007]
- a few cleanups that somehow evaded kvm-30 (Jeff Dike, Rusty Russell)
- allow the external module to compile on older kernels.
version 30 [19 jul 2007]
- minor fixes and cleanups (Jeff Dike, Rusty Russell, Avi Kivity)
- kernel pio string write (Eddie Dong)
- guest smp kernel fixes
- rdmsr and wrmsr real mode emulation
- fix real mode shadow pages aliasing nx large page shadows
- enable guest smp in qemu
- fix external module installer
- revert ide enable changes that caused an I/O regression
version 29 [12 jul 2007]
- live migration from 32-bit hosts to 64-bit hosts (Uri Lublin)
- monotonic timestamp counter on Intel
- more real mode support (Nitin A Kamble)
- infrastructure for in-kernel PIC and APIC (Gregory Haskins, Eddie Dong)
- fix read-modify-write to mmio (fixes F7 installer) (Luca Tettamanti)
- fix rebooting a long-running guest
- reliably detect if svm was disabled by bios (Joerg Roedel)
- suspend/resumes fixes (will not work with older kernels)
- fix nx confusion with large pages and real mode
- remove dependency on libuuid
- fix registers access in monitor/gdbstub (Anthony Liguori)
- minor fixes and cleanups (various)
version 28 [10 jun 2007]
- fix host oops on guest context switch
- many code cleanups (Nguyen Anh Quynh, others)
- prepare kernel for guest smp
- update libkvm for guest smp
- update testsuite for guest smp
- emulate hlt in real mode (avoids crash when booting from unformatted disk)
- initialize ata ports for Fedora 7 guests (Luca Tettamanti)
version 27 [3 jun 2007]
- use slab cache for mmu shadow pages
- make shadow pte updates atomic (for guest smp)
- general mmu cleanups
version 26 [27 may 2007]
- implement wbinvd emulation, triggered by Windows Vista
- compile fixes (Markus Rechberger, Avi Kivity)
version 25 [24 may 2007]
- massive performance increase (Eddie Dong)
- regenerate bios from latest bochs sources, hopefully fixing a regression with some guests
- some testsuite work (Anthony Lihuori, Eddie Dong, Avi Kivity)
- minor fixes (various)
version 24 [8 may 2007]
- fix oops loading kvm-intel module on i386 with highmem
version 23 [7 may 2007]
- OpenBSD 4.1 i386 support (Matthew Gregan)
- Fix host and guest crashes on reboot
version 22 [6 may 2007]
- Significant performance improvements (Anthony Liguori, Eddie Dong, Qing He, Avi Kivity)
- Fix longstanding bug: time runs at double speed on x86_64 Linux (Qing He)
- Windows Vista 32-bit support (Qing He, Jun Nakajima)
- Support for kvm abi 10 modules
- Minor updates
version 21 [27 apr 2007]
- fix regression on Core (not Core 2) processors
- performance improvements (Eddie Dong, Anthony Liguori)
- minor fixes
version 20 [24 apr 2007]
- Windows 2000 support
- performance enhancements
- patch against latest kernel tree included in tarball
- fix oops with 32-bit nonpae guests
version 19 [16 apr 2007]
- bug fixes
- memory aliasing api
version 18 [26 mar 2007]
- merged new userspace API
- revert the optimization which killed some 32-bit Linux guests
- reboot support on Intel hosts (AMD are already supported)
- better timekeeping under load (Uri Lublin)
- other minor fixes and cleanups
version 17 [25 mar 2007]
- live migration enhancements (Uri Lublin)
- better/working acpi support
- revert to unhacked qemu bios
- fix some 32-bit nonpae guests (*BSD)
- initial ballooning support
- random fixes
version 16 [7 mar 2007]
- bug fixes (including a nasty one on module load)
- use lanana assigned minor device number for /dev/kvm
version 15 [26 feb 2007]
- live migration with kvm (Uri Lublin)
- based on Anthony Liguori's qemu patches
- new userspace interface (work in progress)
- the usual random fixes
version 14 [19 feb 2007]
- qemu 0.9.0
- too many goodies to list
- kvm can no longer share qemu's bios on Intel hosts due to real mode trouble. use the supplied bios.
- migration now based on Anthony Liguori's live migration patches (Uri Lublin)
- currently, only non-live migration is supported under kvm
- handle smi on host on AMD hosts (Joerg Roedel)
- random fixes
version 13 [8 feb 2007]
- add dirty page tracking in some corner cases for live migration
- fix lockups on nx-challenged hosts
- host suspend/resume
- nobody's testing this, so it's probably broken
- host cpu hotplug support
- beginning of paravirt support (Ingo Molnar)
- guest reboot support (Markus Rechberger, Joerg Roedel)
- pio latency reduction (Anthony Liguori)
- stone age kernel compatibility (Markus Rechberger)
- the usual cleanups and stability fixes
version 12 [23 jan 2007]
- More migration work (Uri Lublin)
- savevm/loadvm (and migration) work on AMD (Leonard Norrgard)
- More guest support
- mmu testsuite and fixes
- Windows ACPI install/run support (Dor Laor)
- Fix host reboot on guest reboot on AMD (Joerg Roedel)
version 11 [11 jan 2007]
- stabilization fixes
- vmexit profiling (Ingo Molnar; requires Linux 2.6.20+)
version 10 [7 jan 2007]
- more hypercall work
- cleanup irq handling
- shadow page table caching
- migration fixes
- stabilization fixes
version 9 [31 dec 2006]
- API documentation (James Jacobsson)
- More stabilization fixes (Yoshimi Ichiyanagi, Ingo Molnar, Nguyen Anh Quynh)
- Interactivity improvements (Dor Laor)
version 8 [21 dec 2006]
- msr fixes (Michael Riepe)
- more guest support (Michael Riepe)
- random fixes
- fpu state corruption fix on AMD hosts
version 7 [12 dec 2006]
- prevent loading arch module on wrong hardware
- fix for macbooks
- other minor fixes
version 6 [11 dec 2006]
- AMD 32-bit host support (Anthony Liguori)
- more migration work
- stabilization
- improved performance
- improved guest support on AMD
version 5 [28 nov 2006]
- AMD SVM support (x86-64 hosts only)
- Preliminary live migration support
- 'make install' also installs kernel modules, if selected
- random fixes
version 4 [21 nov 2006]
- added the msr work
- suspend/resume should work now
- more vmdk compatibility work
- random build updates
version 3 [15 nov 2006]
[Avi Kivity retained the natural number versioning after he contemplated the confusion that can arise from having releases 1, 2, and 0.3]
Kernel module
- make exit reason numbers explicit
- sync kernel module with -mm tree
- asm constraint fixes
- userspace interface blurb
- segment restore across mode switch (fixes etherboot)
- segment asm constraint fix (Bernhard Rosenkraenzer)
- segment access cleanup
libkvm:
- better error reporting (Simon Kagstrom)
- 'make clean'
- attributions and license
kvmctl:
- add option to launch guest in 32-bit mode
- add test programs
qemu/kvm:
- autodetect kvm presence (Simon Kagstrom)
General
- fix host arch detection on debian
- fix ./configure on debian (Gildas)
- toplevel 'make clean'
version ?? [9 nov 2006]
- much easier to get running, see updated HOWTO
- now just one download, get yours while supplies last
- single qemu binary for kvm and non-kvm runs (Anthony Liguori)
- accompanying external kernel module package has all bugfixes folded in (plus a bit of cosmetics)
version v4 [5 nov 2006]
- [1]
- detect msrs on host dynamically. Avoids oopses on non-ia32e capable processors.
- web site: http://kvm.sourceforge.net
- slightly rediffed
version v3 [26 oct 2006]
- [2]
- mailing list: kvm-devel@public.gmane.org (http://lists.sourceforge.net/lists/listinfo/kvm-devel)
- applied code review comments
- fixed set_sregs() ioctl corrupting guest state if cr0.pe changed (a polite way of saying that loading a saved vm was broken)
version v2 [23 oct 2006]
- [3]
- fixed a lockup on i386 with host memory >= 4GB
- finer patch split to conform to vger limits
- minor fixes
- send through script to avoid mailer damage
version v1 [19 oct 2006]