ChangeLog

kvm-88 [12 july 2009]

• merge upstream qemu.git
  • virtio indirect ring entries
    • improves block performance for newer Linux guests
  • -net tap,sndbuf=... option for improving udp performance
  • msi-x support
  • sdl window resize
  • more flexible -net user configuration
  • -cpu host to pass through all host cpu features
  • multiboot support for -kernel
• fix KVM_GET_SUPPORTED_CPUID feature usage (Andre Przywara)
• fix register contents after SIPI (Gleb Natapov)
• re-enable device assignment (Markus Armbruster)
• fix ia64 build (Markus Armbruster)
• fix migration for virtio-net version > 7 (Michael S. Tsirkin)
• merge more code with upstream (Glauber Costa)
• fix vnet_hdr checks (Mark McLoughlin)
  • fixes broken tap networking with rtl8139 and e1000
• move extboot to standard optionrom location (Jan Kiszka)
• emulate 32-bit syscall/sysenter instructions on 64-bit guests (Andre Przywara)
  • allows cross-vendor live migration with 32-bit userspace on 64-bit kernel
• fix s390 memslot initialization for userspace_addr != 0 (Christian Borntraeger)
• allow s390 stfle instruction to be executed by guest (Christian Borntraeger)
• prepare memory slot data structures for multiple large page sizes (Joerg Roedel)
• correct missing locking in PIT/IRQCHIP/SET_BSP_CPU ioctl paths (Marcelo Tosatti)
• do not allow invalid mtrr/pat settings (Marcelo Tosatti)
• ignore some more AMD system configuration msrs (Andre Przywara)
• introduce module parameter for ignoring unknown msrs (Andre Przywara)
• fix ftrace build when kvm is built into the kernel
• convert powerpc marker probes to tracepoints (Marcelo Tosatti)
• drop old kvmtrace code (Marcelo Tosatti)
• document kvm_io_device locking (Michael S. Tsirkin)
• switch coalesced mmio, PIT creation, io bus to slots_lock (Michael S. Tsirkin)
• fix locking imbalance (Jiri Slaby)
• irq tracing
• mmio tracing
• irqfd deassign (Gregory Haskins)
• x2apic support (Gleb Natapov)
• avoid redelivery of edge triggered interrupt before next edge (Gleb Natapov)
  • fixes keyboard issues running Windows XP x64 smp installer
• avoid pit division by zero (Marcelo Tosatti)
• fix KVM_GET_MSR_INDEX_LIST user memory corruption (Jan Kiszka)
• drop old cr3 checks in favor of new checks (Jan Kiszka)
• mmu tracing
• basic API documentation
• ignore msi requests if level = 0 (Michael S. Tsirkin)
• ioapic/pic/msi tracing (Gleb Natapov)
• don't kick vcpu if not in guest mode (Gleb Natapov)

kvm-87 [25 june 2009]

• merge qemu upstream (Mark McLoughlin, Avi Kivity)
  • tune and view live migration progress
  • allow setting qcow2 cluster size
  • http protocol for images
  • qcow2 speedups
  • networking improvements
• fix -no-shatdown command line option (Daniel Gollub)
• fix warnings on 32-bit hosts (Michael S. Tsirkin)
• use a bitmap for tracking used interrupts (Alex Williamson)
• support running without vga option rom (Jan Kiszka)
• make kvmtrace_format mode distro friendly (Eduardo Habkost)
• fix mac annoucement after live migation with virtio net (Gleb Natapov)
• merge cpu state more compatible with upstream qemu (Jan Kiszka)
• improve large page memory layout
• only initialize lapic after the vcpu (Glauber Costa)
• clean up cpuid feature trimming (Glauber Costa)
• avoid harmless msr warnings (Marcelo Tosatti)
• have bios read read MADT to implement acpi _MAT (Gleb Natapov)
• fix tpr patching to get cpu index from Windows PCR (Gleb Natapov)
• separate kvm from pic implementation (Glauber Costa)
• remove cpu index in libkvm/qemu interface (Gleb Natapov)
• halt guest instead of aborting on error
• fix dma on ia64 (Jes Sorensen)
• fix MADT, RSDT creation (Beth Kon)
• start libkvm removal (Glauber Costa)
• make qemu-kvm implementation closer to upstream (Gleb Natapov)
• move acpi processor descriptions to ssdt (Jes Sorensen)
• machine check exception support (Huang Ying)
• not userspace visible yet
• msr cleanups (Jaswinder Singh Rajput)
• fix cpuid error handling (Mark McLoughlin)
• fix jmp far decoding
• makefile cleanup (Christoph Hellwig)
• drop "interrupt shadow" flag when single stepping (Gleb Natapov)
• allow 4K ptes with PAT bit set
• irqfd (Gregory Haskins)
• allow speaker emulation in usespace (Jan Kiszka)
• fix ia64 timestamp counter (Jes Sorensen)
• fix PAE PDPTR handling
  • fixes Fedora 11 i686 guests
• s390 inter-vcpu communication fixes (Christian Ehrhardt)
• s390 memory slot management improvements (Christian Ehrhardt)
• reduce MSI-X support to 256 vectors (Sheng Yang)
• avoid truncation of sysenter msrs on AMD (Andre Przywara)
• fix performance problem due to irq disabling on device assignment (Sheng Yang)
• fix init/exit text annotations (Stephen Rothwell)
• clean up coalesced_mmio destruction (Gregory Haskins)
• cleanup kernel iodevice code (Gregory Haskins)
• register PIT device after initialization (Gregory Haskins)
• avoid redundant tlb flush when using ept
• simplify ptptr and cr3 management on Intel
• cache pdptrs for i686 pae guests
• improve handling of unhandled ept violations
• fix host reboot failures with CONFIG_MAXSMP
• powerpc e500 adjustments (Liu Yu)
• vmx unrestricted guest (Nitin A Kamble)
• clean up lapic interface (Jan Kiszka)
• fix PIC locking (Marcelo Tosatti)
• improve PIC and IOAPIC scaling (Marcelo Tosatti)
• handle machine checks while running in guest mode (Andi Kleen)
• disable large pages on misaligned memory slots
• prevent overflow in largepage calculation
• prevent unnecessarily setting guest pages dirty bits under ept
• decouple vcpu id from apic id (Gleb Natapov)
• improve internal vcpu accessors (Gleb Natapov)
• break infinite emulation failure loops
• fix mmu audit (Marcelo Tosatti)
• generic performance counter msr handling (Andre Przywara, Amit Shah)
• improve ept error reporting (Marcelo Tosatti)
• disable large pages if ept does not support them (Marcelo Tosatti)
• improve simultaneous exception handling (Gleb Natapov)
• optimize APIC interrupt request register searching (Gleb Natapov)
• fix live migration with large pages (Izik Eidus)
• fix racy event propagation in timer (Jan Kiszka)
• remove unnecessary atomic test in timer (Jan Kiszka)
• optimize cr2 reloads on vmx
• drop cr2 save/restore on svm
• fix crash when guest uses vmx instructions
• implement msrs used by Hyper-V as a guest (Alexander Graf)
• implement invlpga instruction (Alexander Graf)
• improve nested interrupt injection (Alexander Graf)
• convert kvmtrace to use the generic kernel infrastructure (Marcelo Tosatti)
• fix concurrent mmu reloads and tlb flushes (Marcelo Tosatti)
• fix ia64 build (Jes Sorensen)

kvm-86 [20 may 2009]

• merge qemu.git
  • qcow2 corruption fixes
  • cpuid initialization fixes
  • numa support
  • improve rtc time drift compensation
  • hardware watchdog
• merge bochs bios
• drop packets if all net links are down (Mark McLoughlin)
• fix device assignment error checking (Michael S. Tsirkin)
• fix -drive boot= parameter help (Pauline Middelink)
• fix tap networking after merge (Mark McLoughlin)
• set default configure option for ia64 (Xiantao Zhang)
• remove unnecesary differences compared to upstream (Anthony Liguori)
• fix build outside source directory (Anthony Liguori)
• ppc build fixes (Hollis Blanchard)
• revert incorrect ia64 icache sync (Hollis Blanchard)
• fix apic id save/load (Glauber Costa)
  • fixes smp live migration
• libkvm cosmetics (Michael S. Tsirkin)
• fix virtio-net save/load (Alex Williamson)
• allow loading additional acpi tables (Gleb Natapov)
• allow loading additional smbios entries (Alex Williamson)
• fix dirty tracking on large memory (Glauber Costa)
  • fixes live migration for guests with a lot of memory
• fix device assignment irq error handling (Alex Williamson)
• make kvm headers C++ friendly (Nathan Binkert)
• remove global page optimization (Marcelo Tosatti)
  • fixes FreeBSD on shadow paging
• move lcall, ljmp, jcc, pio decoding to decode stage (Gleb Natapov)
• only skip instruction on task switch when approprite (Gleb Natapov)
• kvmclock cosmetics
• fix memory region overlap check (Jan Kiszka)
• ia64: don't hold slots lock in guest mode (Jes Sorensen)
• check cr3 validity on guest restore (Marcelo Tosatti)
• ia64: flush all tlbs on mapping change (Xiantao Zhang)
• ia64 cosmetics (Jes Sorensen)
• interrupt disable fixes for ia64 (Jes Sorensen)
• unregister cpu frequency notifiers on module unload (Jan Kiszka)
• fix mmu auditing code (Jan Kiszka)
• move irq injection logic to common code (Gleb Natapov)
  • contains several irq fixes
• cleanup ept memory type support (Sheng Yang)
• enable snoop control for device assignment (Sheng Yang)
• disable vmx on system shutdown (Sheng Yang)
• fix nx feature reporting
• fix efer reads on hosts without efer
• fix apic debugging (Glauber Costa)
• fix cross vendor migration (Andre Przywara)
• drop request_nmi from kvm_stat (Jan Kiszka)
• fix MTRR, PAT, MCE, MCA feature reporting
• add cr8_legacy, abm, misaligned_sse, sse4, 3dnow prefetch feature reporting
• add movbe and popcnt feature reporting
• use smp_send_reschedule() to kick guests out of guest mode (Marcelo Tosatti)
• device assignment locking fixes (Marcelo Tosatti)
• remove port 80 passthrough on svm
  • fixes hangs on some hp laptops
• deal with interrupt shadow state on emulated instructions (Glauber Costa)
• properly lock kvm_mmu_change_mmu_pages (Marcelo Tosatti)
• properly lock memory slot deletion (Marcelo Tosatti)
• expand on make menuconfig help (Robert P. J. Day)
• fix s390 memory slot locking vs vcpu run (Carsten Otte)
• use hrtimer for wakeup on s390 (Christian Borntraeger)
• s390 unlink vcpu on destroy (Christian Borntraeger)
• sanity check s390 intercept (Carsten Otte)
• s390 verify guest has some memory assigned (Carsten Otte)
• do not reexecute software interrupt instructions on intel (Gleb Natapov)
• disable cr8 intercepts if tpr patching is active (Gleb Natapov)

kvm-85 [21 apr 2009]

• merge qemu-svn
  • microsoft serial mouse emulation
  • cpuid fixes
  • multiple simultaneous vnc client support
  • allow additions of acpi tables from command line
  • fix SDL with X.org evdev driver
  • vnc sasl authentication
  • fix one qcow2 corruptor
  • fix qcow2 > 2TB images
  • use preadv/pwritev when available for zero-copy block devices
• make pci mmio page aligned (Weidong Han)
• testsuite: MSR_KERNEL_GS_BASE handling
• fix extboot with cache=off (Nolan Leake)
• add release script
• add split qemu and kvm-kmod releases
• remove kvm script
• don't hardcode tsc_khz on older kernels (Marcelo Tosatti)
• count extboot as a disk in bios (Gleb Natapov)
  • fixes Vista boot from virtio
• start/stop vcpus before/after devices (Yaniv Kamay)
• ia64 build fixes (Jes Sorensen)
• testsuite: test EFER.NXE
• ./configure fixes (Mark McLoughlin)
• don't use dirty log on ia64 (Yang Zhang)
• improve pci address parsing (Weidong Han)
• backward compatibility for PAGE_KERNEL_UC on ia64 (Yang Zhang)
• backward compatibility for msidef.h on ia64 (Yang Zhang)
• fix 4GB+ guest RAM with large pages (Marcelo Tosatti)
• clear tap features on initialization
• testsuite: jmp/jcc instructions (Gleb Natapov)
• fix handling of large pages in assigned devices (Joerg Roedel)
• mmu cleanups (Joerg Roedel)
• report irq injections to userspace (Gleb Natapov)
• set accessed bit on segment selectos on AMD (Andre Przywara)
  • fixes cross-vendor migrations
• fix large page memory leak (Joerg Roedel)
• ppc e500 mmucsr0 register emulation (Liu Yu)
• support device deassignment (Weidong Han)
• fix ia64 msi build errors (Xiantao Zhang)
• update msr state when entering long mode (Amit Shah)
• fix test for long mode (Amit Shah)
  • fixes some Solaris x64 variants
• fix sparse annotations (Hannes Eder)
• don't use highmem pages for vmx msr and pio bitmaps
• don't intercept MSR_KERNEL_GS_BASE on Intel
  • speeds up Windows 2008 x64 somewhat
• unify ioapic and msi interrupt delivery (Sheng Yang, Gleb Natapov)
• msi-x support (Sheng Yang)
• fix kvmclock memory leak (Joerg Roedel)
• fix preempt warning in kvmclock (Matt T. Yourst)
• guest: skip pit-through-ioapic boot test (Marcelo Tosatti)
• stop ioapic code leaking into archs which don't have an ioapic (Christian Borntraeger)
• pit cleanups (Marcelo Tosatti)
• fix ia64 build (Zhang Yang)
• reduce unnecessary shadow update when a guest pte becomes dirty (Joerg Roedel)
• Altix SN2 real time clock support (Jes Sorensen)
• advertise irq routing table size (Sheng Yang)
• rework device assignment code (Sheng Yang, Marcelo Tosatti)
• fix missing flush on invlpg emulation (Andrea Arcangeli)
• fix ppc e500 mas0 wrong update (Liu Yu)
• fix smp instability on ppc e500 (Liu Yu)
• fix free_mmu_pages() doing things out of lock (Gleb Natapov)
• ignore reads to performance counter EVNTSEL msts (Amit Shah)
  • fixes Kapersky antivirus failure
• clean up AMD interrupt injection (Gleb Natapov)
• make vmx module parameters readable, and reflect current setting
• simplify module parameter names
• fix compatibility mode guests ability to trash EFER
• don't unconditionally unhalt vcpu on timer event (Gleb Natapov)
• only unhalt vcpu on interrupt if interrupt window is open (Gleb Natapov)
  • prevents 100% cpu on boot failure
• fix incorrect vmcs field sizes on some fields (Eddie Dong)
• fix misleading comment (Eddie Dong)
• enable external interrupts while in ia64 vmm (Yang Zhang)
• fix off-by-one calculating large page count
• emulate page fault caused by reserved bits set in guest pte (Eddie Dong, Sheng Yang)
• use different shadows when EFER.NXE changes
• clean up lapic freeing (Wei Yongjun)
• clean up flexpriority related code (Sheng Yang)
• fix vmx feature testing (Sheng Yang)
• fix PDPTE reserved bit testing (Eddie Dong)
• fix handling of a fault during NMI unblocked due to IRET (Gleb Natapov)
• clean up vmx interrupt completion (Gleb Natapov)
• fix task switch back link pointer (Gleb Natapov)
• fix near call emulation (Gleb Natapov)
• fix extboot failure after reset (Ryan Harper)
• ia64 vga fixes (Xiantao Zhang)
• ia64 instruction/data cache synchronization fixes (Xiantao Zhang)
• disable global page optimization (Marcelo Tosatti)
  • fixes FreeBSD failures
• fix locking order when entering ia64 guest (Jes Sorensen)
• fix PIT mode 0 handling (Marcelo Tosatti)

kvm-84 [15 feb 2009]

• merge qemu-svn
  • redirect slirp traffic to qemu-char device
  • slirp fixes
  • qcow2 fixes
  • nic link status control
  • enable ac97 audio by default
  • add virtio-console device
  • fix rtc time drift on Windows (-rtc-td-hack option)
  • add -vga none option for running headless guests
  • better block device error propagation
  • fix guests halting when switching desktop workspace
  • improved display interfaces
  • better logging support
  • don't corrupt qcow2 images when out disk space on host
  • dma api
  • add pci device vendor ID
  • vnc improvements
  • improve Virtual PC disk format support
  • scsi fixes
  • multicast filtering for e1000 and virtio-net
• add libkvm wrapper for KVM_SET_CPUID2 interface (Amit Shah)
• fix cpuid for leaves 4, 11, 13 (Amit Shah)
• save ia64 nvam (Yang Zhang)
• compile fixes (Mark McLaughlin, Jan Kiszka)
• generic irq routing
• build fixes against RHEL 5 hosts (Andrea Arcangeli)
• fix build when pc-bios directory is empty (Eduardo Habkost)
• improve host version check (Mark McLaughlin)
• drop obsolete eflags conversion to/from qemu emulator (Jan Kiszka)
• preallocate memory with -mem-path (John Cooper)
• don't register unassigned PCI BARs (Gleb Natapov)
• more hrtimer API compatibility
• fix build on uniprocessor hosts (Jan Kiszka)
• fix build on pre-msi hosts (Jan Kiszka)
• allow stopping vm from vcpu thread (Gleb Natapov)
• fix cpu and pci hotplug (Gleb Natapov)
• ppc updates (Liu Yu)
• fix ia64 fp trap handler (Yang Zhang)
• fix ia64 vtlb handling (Xiantao Zhang)
  • enables Windows 2008 on ia64
• support translating ia64 PAL arguments (Xiantao Zhang)
• implement ia64 PAL calls needed by Windows 2008 (Xiantao Zhang)
• map assigned device mmio as uncachable (Sheng Yang)
• fix lapic pending count calculation (Marcelo Tosatti)
• fix s390 printk (Christian Borntraeger)
• fix s390 problem state check (Christian Borntraeger)
• fix s390 SIGP set prefix ioctl (Christian Borntraeger)
• dynamic ia64 cpu count (Jes Sorensen)
• fix lapic build on i386 (Clemens Noss)
• make irq ack notifications use routing table (Marcelo Tosatti)
• FFXSR support (Alexander Graf)
• fix assigned device circular locking dependency (Mark McLaughlin)
• drop unused code from string pio handlers (Jan Kiszka)
• fix kvmclock on hosts with unstable tsc (Gerd Hoffman)
  • reenables Fedora 10 guests on those hosts
• enable msi from userspace (Sheng Yang)
• remove duplicated code in EPT handler (Sheng Yang)
• flush volatile msrs on Intel before emulating rdmsr
  • fixes cygwin on Windows x64

kvm-83 [13 jan 2009]

• amd iommu support (with Linux 2.6.29+ hosts) (Joerg Roedel)
• merge qemu-svn
  • qcow2 correctness fixes
  • '-drive serial=...' option
  • virtio-net migration fixes
• fix '--with-patched-kernel' build on Ubuntu (Nolan Leake)
• improved tsc handling (Marcelo Tosatti)
  • should reduce timing errors on older Linux guests
• remove cpuid code duplication due to upstream qemu work (Amit Shah)
• guest S3 sleep (Gleb Natapov)
• load assigned devices option rom (Kechao Liu)
• '-no-kvm-pit-reinjection' option to improve timing on RHEL 3 era guests (Marcelo Tosatti)
• remove duplicate firmware config interface probe in bios (Sebastian Herbszt)
• backward compatibility for marker_synchronize_register() (Eduardo Habkost)
• fix compile warning in tpr patching (Mark !McLoughlin)
• don't install kvm headers to /usr/local
• fix smbios memory size in certain cases (Bill Rieske)
• simplify mmu shadow walking function
• stop using vmap() on guest pages (annoys ksm) (Izik Eidus)
• fix warning on MSR_VM_HSAVE_PA in dmesg
• fix i8254 timer count read (Marcelo Tosatti)
• ppc e500 core support (Hollis Blanchard)
• fix vmx real mode guest state validity checks
• make pop instruction emulation a little more generic
• implement 'ret far' instruction emulation
• properly lock i8354 timer
• remove ppc debug support (Hollis Blanchard)
• fix race freeing assigned device interrupt (Sheng Yang)
• fix pci interrupt in freeing in device assignment (Sheng Yang)
• allow disabling msi for assigned devices (Sheng Yang)
• emulate amd microcode level msr (Alexander Graf)
  • helps esx boot on kvm
• make page unshadowing a little faster
• clear pending pit interrupts when unmasking the timer irq
  • fixes xen-on-kvm
• mmu notifiers release method (Marcelo Tosatti)
  • fixes large pages support
• expose ia64 registers to userspace (Jes Sorensen)
• fix type in has_svm() (Joe Perches)
• drop unnecessary memory clearing when allocating shadow page (Marcelo Tosatti)
• rename "metaphysical" page attribute to "direct"
• fix irq routing with -no-kernel-irqchip

kvm-82 [25 dec 2008]

• merge qemu-svn
  • uuid support
  • fix CVE-2007-5729 (slirp vulnerability)
  • fix CVE-2008-2382 (vnc denial of service)
  • better scsi support
  • pci subsystem id for pci devices
    • this will cause Windows guest to rediscover hardware
  • improved I/O parallelism
  • ppc kvm support
  • hpet support
    • not fully integrated yet
  • monitor 'info status' command
• merge bochs-bios-cvs
  • uuid support
  • prepare for S3 sleep
• merge vgabios-cvs
• much improved guest debugging (Jan Kiszka)
  • both debugger in guest and debugger in host
• fix kvm makefile for separate object dir (Andi Kleen)
• nested svm (Alexander Graf)
  • run kvm in kvm in kvm...
• fix ia64 register and stack access from userspace (Jes Sorensen)
• don't treat a global pte as global if cr4.pge is clear
  • fixes Vista x86 smp failure on boot
• properly lock virtual i8259 interrupt controller
• fix large host pages invlpg/resync
  • fixes oops when using host hugetlbfs
• fix vmload instruction misemulated as lidt

kvm-81 [16 dec 2008]

• merge qemu-svn
  • fix performance regression with qcow2 files
  • improve qcow2 data integrity with cache=writethrough
  • fix display corruption with gnome panel auto-appear
  • scsi improvements
• shld/shrd instruction emulation and unit test (Guillaume Thouvenin)
• ppc updates (Hollis Blanchard, Deepa Srinivasan, Christian Ehrhardt)
• prepare virtio for upstream merging (Anthony Liguori)
• fix uninitialized variable in virtio-net (Anthony Liguori)
• fix compile failure on Debian (Amit Shah)
• fix display loss in opensuse 11 installer
• fix vmmcall emulation on intel (Amit Shah)
  • fixes amd->intel migration
• allow userspace to work with modules from kvm-79 and earlier
• fix undefined behaviour copying cpuid signature (Guillaume Thouvenin)
• fix build with --kerneldir (Maik Hentsche)
• really exit if device assignment fails (Mark !McLoughlin)
• fix vga on ia64 (Xiantao Zhang)
• simplify nmi injection from userspace (Jan Kiszka)
• enable virtio zero-copy (Mark !McLoughlin)
  • also fixes crash in rare cases
• fix display loss on 32-bit hosts
• reduce tlb flushing when resyncing pages (Marcelo Tosatti)
• don't resync global pages on context switch (Marcelo Tosatti)
  • improves HIGHMEM performance
• prepopulate shadow on invlpg (Marcelo Tosatti)
• fix kvmclock when HZ != 1000 (Eduardo Habkost)
• fix module unload race oops (Christian Borntraeger)
• reduce stack footprint on large hosts (Rusty Russell)
• reduce capability reporting code duplication
• check for missing pae pdptr on invlpg emulation (Marcelo Tosatti)
  • fixes solaris 10 oops
• fix handlig of ack from irq shared between assigned and emulated devices (Mark !McLoughlin)
• fix nmi-vs-irq race for -no-kvm-irqchip (Jan Kiszka)

kvm-80 [7 dec 2008]

• merge qemu-svn
  • automatic port allocation for vnc and similar
  • improved cdrom media change handling
  • improved debugging support
  • more scsi improvements
  • e1000 vlan offload
• up to 256 vcpus for ia64 (Jes Sorensen)
• only request io port permission if device assignment is enabled (Jes Sorensen)
• fix in-kernel ioapic reset (Jan Kiszka)
  • fixes guest reboot failures
• fix balloon for systems with page size different from 4K (Hollis Blanchard)
• fix bios memory reporting with >32G guests (Bill Rieske)
• drop inclusion of compiler.h in external modules (Xiantao Zhang)
• use vcpu pointers instead of vcpu numbers (Jes Sorensen)
• goodbye bool (Jes Sorensen)
• stop using separate structure for cpu state; use qemu's instead (Jes Sorensen)
• apic testsuite
• fix -no-kvm apic with smp (Jan Kiszka)
• clean up userspace nmi injection (Jan Kiszka)
• adjust external module for 2.6.28 hosts (Mark McLoughlin)
• much improved large mtu/gso support for virtio-net (Mark McLoughlin)
• simplify x86 emulator stack pop operations
• clean up device assignment code (Mark McLoughlin)
• fix extboot returning error incorrectly (Glauber Costa)
• constrain device assignment mmio to page alignment (Han Weidong)
• ppc speedups (Hollis Blanchard)
• fix s390 problem state handling (Christian Borntraeger)
• fix interrupt loss when injecting an nmi
  • fixes Linux guests with nmi watchdog hanging
• fix ia64 build (Xiantao Zhang)
• fix emergency reboot and kdump on host while running VMs (Eduardo Habkost)
• fix syncing of self-referencing ptes (Marcelo Tosatti)
• add printk() for ia64 vmm (Xiantao Zhang)
• add crashed vm handler for ia64 (Xiantao Zhang)
• use correct calling convention into ia64 PAL code (Xiantao Zhang)
• request interrupt window after injecting an interrupt if another is pending
• plug ppc memory leak when destroying a vm
• sign kvmclock as a paravirt operation (Glauber Costa)
• MSI support for device assigment (Sheng Yang)
• fix shadow pagetables leak (Marcelo Tosatti)
  • fixes an oops
• optimize setting new pte while syncing a page (Marcelo Tosatti)
• reduce code duplication in x86 emulator
• fix s390 refcounting; allow module unload (Christian Borntraeger)
• fix s390 memory leak (Christian Borntraeger)
• prevent tracing calls into unloaded module (Wu Fengguang)
• fix sparse warnings (Hannes Eder)
• clean up irq ack notifiers (Mark McLoughlin)
• powerpc large page support (Hollis Blanchard)
• faster powerpc shadow tlb handling (Hollis Blanchard)
• reduce powerpc guest tlb miss rate on context switches (Hollis Blanchard)
• powerpc exit timing stats (Hollis Blanchard)
• fix -no-kvm-irqchip not working with smp (Jan Kiszka)
• fix rendering regressions introduced by upstream qemu rendering support

kvm-79 [12 nov 2008]

• merge qemu-svn
  • fix qcow2 problems with scsi
  • 'info chardev' monitor command
• device assignment userspace (Amit Shah, Muli Ben Yehudah, Ben-Ami Yassour, Weidong Han, Or Sagi, Nir Peleg, Glauber Costa, Xiantao Zhang)
• multiple processor infrastructure for ppc (Hollis Blanchard)
• fix error handling in eventfd() emulation (Mark McLoughlin)
• handle large mtu with virtio-net (Mark McLoughlin)
• move x86 specific device assignment code to x86 files (Christian Ehrhardt)
• fix 'pci_add' command descriptor (Weidong Han)
• enable pci function level reset for device assignment (Sheng Yang)
• fix incorrect handling of aliases gfns (Izik Eidus)
• ppc optimizations (Hollis Blanchard, Christian Ehrhardt)
• disallow guests from setting memory type when using EPT (Sheng Yang)
• fix cpuid leaf 11 loop termination (Nitin A Kamble)
• fix cpuid multiple leaf iteration (Nitin A Kamble)
• fix ia64 uniprocessor build (Xiantao Zhang)
• fix ppc Kbuild constraints (Hollis Blanchard)
• fix pit initialization memory leak

kvm-78 [2 nov 2008]

• fix paravirt kernels due to missing oos flush (Marcelo Tosatti)
• code cleanups (Sheng Yang)
• fix guest shared interrupts for device assignment (Sheng Yang)
• avoid stale asm-offsets.h on ia64 (Xiantao Zhang)
• fix ia64 halt emulation (Xiantao Zhang)
• extend slot bitmap on i386 (Sheng Yang)
• move private memory slots to avoid conflict with device assignment (Sheng Yang)
• future-proof device assignment ABI
• add emulation and unit tests for add acc, imm instruction (Guillaume Thouvenin)
• fix nmi watchdog emulation (Jan Kiszka)
• optimize nmi watchdog delivery (Jan Kiszka)
• require irq ack notifier to be used with in-kernel irqchip (Sheng Yang)
• don't halt non-boot cpu if using in-kernel irqchip (Gleb Natapov)
• add cscope definitions (Sheng Yang)
• merge qemu-svn
  • new live migration implementation
  • usb improvements
  • migration fixes
• read UUID from qemu (Gleb Natapov)
• increase max cpu count to 255 for ia64 (Xiantao Zhang)
• handle INIT before SIPI (Gleb Natapov)
• update ppc for nmi changes (Christian Ehrhardt)
• fix external module generation unifdef problem (Sheng Yang)
• set 'g' bit of segment descriptor on AMD when necessary (Amit Shah)
• set 'busy' bit of task descriptor on AMD when necessary (Amit Shah)
  • fixes some AMD->Intel live migration failures
• use emulator to adjust rip of pio string instructions (Guillaume Thouvenin)
• increase rmap preallocation (Marcelo Tosatti)
  • fixes oops on mmu intensive smp workloads
• handle mmio in big real mode (Guillaume Thouvenin)
• reorganize ia64 guest data area (Xiantao Zhang)
• fix ia64 guest signal mask (Xiantao Zhang)
• reduce locking when vcpu is halted (Xiantao Zhang)
• update e820 table for ept real mode identity map page (Sheng Yang)
• fix external module build with kvmtrace
• fix ppc xer access (Christian Ehrhardt)
• fix ppc threading (Hollis Blanchard)
• implement libcflat for ppc 44x (Hollis Blanchard)
• set smp limit for ppc (Hollis Blanchard)
• fix ppc memory setup (Christian Ehrhardt)

kvm-77 [12 oct 2008]

• merge bochs-bios-cvs
• merge qemu-svn
  • more -cpu options
  • faster disk emulation (esp. with scsi/virtio)
• improved NMI support (Jan Kiszka)
• improve >4GB memory support (Alex Williamson)
• memory alias cleanups (Glauber Costa)
• fix kvmtrace segfault (Ryota OZAKI)
• make external module compile on split source/object configs (Alexander Graf)
  • allows compiling on opensuse
• fix -std-vga regression
• fix migration failure at end of migration protocol
• map mmio pages for device assignment (Weidong Han)
• silence lapic kernel messages (Jan Kiszka)
• fix vcpu reset (Gleb Natapov)
• fix missed invlpg on EPT-enabled machines with EPT disabled (Marcelo Tosatti)
• device assignment on ia64 (Xiantao Zhang)
• memory type support on EPT (Sheng Yang)

kvm-76 [28 sep 2008]

• merge qemu-svn
  • improved usb support
  • vnc improvements
  • pass uuid to guest
  • scsi improvements
• change virtio-blk to guest-endian configuration (Liu Yu)
• add 'call near absolute' to x86 emulator and testsuite (Mohammed Gamal)
• drop support for kernel memory allocation (Glauber Costa)
• avoid fiddling with ISA mappings (Jan Kiszka)
  • improves debugging support
• fix external module build on 2.6.22 hosts
• make kernel and userspace memory slot count agree (Sheng Yang)
• add 'cmp' to x86 emulator testsuite (Mohammed Gamal)
• allow 'make sync' from toplevel directory
• external module compatibility for get_user_pages_fast() api (Jan Kiszka)
• correct mtrr setup with >= 4GB RAM (Alex Williamson)
• fix ia64 boot with acpi enabled (Xiantao Zhang)
• initialize userspace kvm context (Uri Lublin)
• fix ia64 with >= 3GB RAM (Xiantao Zhang)
• avoid allocating translated code buffer when using kvm
• simplify memory registration (Glauber Costa)
• support kvmtrace with external module (Eduardo Habkost)
• ia64 init code simplification (Jes Sorensen)
• ia64 external module compatibility with older kernels (Xiantao Zhang)
• fix live migration due to slot number getting lost (Uri Lublin)
• prevent live migration if a device is missing on the target (Uri Lublin)
• fix include-compat/asm symlinks (Uri Lublin)
• do not execute halted vcpus (Marcelo Tosatti)
• fix global tlb flushes with NPT (Joerg Roedel)
• fix preemption error on real mode emulation
• fix page aging with EPT (Sheng Yang)
• simplify locking around ppc shadow tlb page access (Hollis Blanchard)
• cleanup redundant vmcs read (Jan Kiszka)
• fix 64-bit jmp instruction emulation
• move vmx msr definitions to common code
• better support for instructions that reference the accumulator (Guillaume Thouvenin)
• add cmp acc, imm instruction emulation (Guillaume Thouvenin)
• kernel support for device assignment (Allen Kay, Amit Shah, Weidong Han, Ben-Ami Yassour)
• switch to using get_user_pages_fast() (Marcelo Tosatti)
  • nice speedup on 2.6.27+ hosts
• build fix for ia64 (Jes Sorensen)
• code cleanup (Harvey Harrison)
• avoid entering guest after a startup IPI (Gleb Natapov)
• simplify 'push reg' instruction emulation (Guillaume Thouvenin)
• fix error handling on vcpu creation failure (Glauber Costa)
• support Tukwilla ia64 processors (Xiantao Zhang)
• fix tlb flush when converting a large page to small pages (Marcelo Tosatti)
• out-of-sync shadow (Marcelo Tosatti)
• reduce inter-processor interrupt generation when using the PIC (Marcelo Tosatti)

kvm-75 [10 sep 2008]

• add 1280x768 std-vga resolution
• ballooning (Anthony Liguori)
  • requires 2.6.27+ host to work correctly
• fix bad memory sizing on ia64 (Xiantao Zhang)
• restore option roms to their original content on reset
  • fixes extboot failures after reset
• enable ia64 power manangement (Xiantao Zhang)
• add cld/std/cli/sti/clc instructions to testsuite (Mohammed Gamal)
• fix compile errors on hosts that lack MADV_DONTFORK
• avoid accessing CMOS NVRAM from ACPI AML (Gleb Natapov)
  • fixes rare reboot failures with Windows
  • fixes ACPI error messages in Windows event log
• add mp state for ia64 (Xiantao Zhang)
• add missing prototypes (Jes Sorensen)
• fix compiler warnings (Jes Sorensen)
• add in/out instructions to emulator (Mohammed Gamal)
• use Windows pcr instead of guest's tr for tpr patching cpu id
  • fixes hibernate/resume with guest smp
• account for realmode/npt/ept page faults in statistics
• fix locking around dirty log tracking
• flush tlbs after fetching the dirty log
• fix random segfaults with npt (Joerg Roedel)
• fix setting accessed bit on non-speculative sptes
• fix tlb flush during page zap
• slightly optimize event injection with npt
• add MC5_MISC msr support (Joerg Roedel)
  • fixes Linux bootup warnings
• make s390 facility bits future proof (Christian Borntraeger)
• improve s390 guest Kconfig help (Christian Borntraeger)
• add cld/std instructions to emulator (Mohammed Gamal)
• fix address overflow in ept (Sheng Yang)
• add statistic for guest irq injections
• remove unnecessary remote tlb flush (Joerg Roedel)

kvm-74 [28 aug 2008]

• make real-mode startup state conform to spec
• fix scheduling error in experimental big real mode support
• fix reboot fault handler exception table entry (Eduardo Habkost)
• x86 emulator code cleanup (Roel Kluin)
• fix 'neg r/m' instruction emulation forced to byte size
• fix shadow ptes corruption on i386 hosts running smp guests
• fix kvmtrace ABI breakage (Adrian Bunk)
• enable virtio for ia64
• add generic shadow page table walker
• allocate internal guest memory as MAP_PRIVATE
• don't call get_user_pages(.force=1)
  • paves the way for get_user_pages_fast()
• add mov r, imm instructions to the emulator (Mohammed Gamal)
• realmode emulator testsuite
• ia64 external module support (Xiantao Zhang)
• support tap IFF_VNET_HDR (Mark McLoughlin)
• merge qemu-svn
  • improved usb support
  • usb auto connect/disconnect
• protect against possible corruption during qemu fork() on older hosts (Marcelo Tosatti)

kvm-73 [21 aug 2008]

• merge qemu-svn
  • improve qcow2 performance with cache=off
  • ide fixes
• ia64 external module (Xiantao Zhang)
• external module compatibility with 2.6.27 hosts
• fix sysenter msrs save/restore (Alexander Graf)
• fix 2.6.26 host support (Nikola Ciprich)
• fix linux-user build (Philippe Gerum)
• virtio-net speedup (Mark McLoughlin)
• fix ./configure with multiple arguments
• support Windows hibernation on non-FlexPriority hosts
• fix makefile dependencies (Sheng Yang)
• fix compiler warnings (Jan Kiszka)
• work around dhclient checksum offload brokenness (Anthony Liguori)
• full swapping support (Andrea Arcangeli)
  • needs 2.6.27 hosts
• internal irq ack notification api (Marcelo Tosatti, Amit Shah, Ben-Ami Yassour, Avi Kivity)
• fix pit timer interrupt injection logic (Marcelo Tosatti)
• paravirt guest: query tsc frequency from host (Glauber Costa)
• pci device assignment (Amit Shah, Ben-Ami Yassour, Weidong Han)
  • still lacking dma
• fix large page crash on z10 mainframes (Christian Borntraeger)
• stack usage reduction (Dave Hansen, Sheng Yang)
• code cleanup (Sheng Yang)
• fix debug register corruption on Intel hosts (Marcelo Tosatti)
• fix -no-kvm-irqchip
• fix irq acking on pic reset (Marcelo Tosatti)
• ignore spurious timer interrupt acks
• limit device assignment to privileged user (Amit Shah)
• big real mode emulation framework (Mohammed Gamal)
• simpify irq injection (Amit Shah)
• dummy irq ack notifier for ia64 (Xiantao Zhang)

kvm-72 [28 jul 2008]

• fix ia64 build breakage (Xiantao Zhang)
• ppc kvmtrace support (Christian Ehrhardt)
• merge qemu-svn
  • fixes suspend/resume of multiple nics
  • adds Virtual Distributed Ethernet (vde) support
• add 'push mem' to patched tpr instructions
• use host kernel anon_inodes support if available
• robustify signalfd() emulation
• avoid losing the iothread on random signals
• fix test for iothread (Jan Kiszka)
• remove hypercall device (Anthony Liguori)
• remove duplicate monitor command (Anthony Liguori)
• remove unused function declaration (Anthony Liguori)
• remove unnecessary change to TARGET_PAGE_SIZE (Anthony Liguori)
• remove qemu/kvm application decoration (Anthony Liguori)
• add 'info kvm' monitor command (Anthony Liguori)
• s390 libkvm port (Carsten Otte)
• fix compile warning (Carlo Marcelo Arenas Belon)
• fix duplicate #include (Carlo Marcelo Arenas Belon)
• adjust external module for 2.6.27 hosts
• avoid tpr patching when the stack is not valid (Marcelo Tosatti)
  • fixes some variant of Windows 2003 SMP
• fix extboot stomping on reserved interrupt vectors (H. Peter Anvin)
• remove unused -translation option (Anthony Liguori)
• fix preemption during copy_from_user_inatomic() on older hosts (Andrea Arcangeli)
• fix ppc cpu initialization (Hollis Blanchard)
• drop shadow ptes on memslot destruction (Marcelo Tosatti)
• improve invalid shadow root page table handling (Marcelo Tosatti)
• simplify mmu page zapping
• simplify interrupt processing on Intel
• remove redundant check for real mode (Mohammed Gamal)
• add clflush emulation (Glauber Costa)
• fix race setting shadow ptes on i386
• consolidate pic isr clearing into a function
• consolidate exception interrupt vector #defines (Jan Kiszka)
• fix interrupt reinjection in real mode (Jan Kiszka)
• unify guest register save/restore code
• x86 hardware task switching fixes (Marcelo Tosatti)
• optimize vmx by avoiding saving the host stack pointer
• fix interrupts being delayed by instruction emulation
  • improves Vista stability
• fix reloading kvm-intel.ko while changing parameters (Sheng Yang)
• fix reboot exception entry build bug (Ingo Molnar)
• ignore no-op DEBUGCTL msr writes (Alexander Graf)
  • fixes Netware
• fix irq state leak on ia64 (Julia Lawall)
• s390 fixes (Carsten Otte, Christian Borntraeger, Martin Schwidefsky)
• ppc guest breakpoint support (Hollis Blanchard)
• optimize ppc by not saving host tlb state (Hollis Blanchard)
• reduce ppc guest tlb writes (Hollis Blanchard)
• avoid guest tlb flushes on guest privilege switches (Hollis Blanchard)

kvm-71 [14 jul 2008]

• fix virtio isr clearing (Laurent Vivier)
• kvmtrace ppc userspace support (Jerone Young)
• avoid fragmenting virtio-blk transfers (Anthony Liguori, Mark McLoughlin)
• ia64 build fixes (Anthony Xu)
• remove unnecessary virtio-net printout (Marcelo Tosatti)
• remove configure warning about gcc 3 (Carlo Marcelo Arenas Belon)
• rhel 5.2/centos 5.2 host support
• merge qemu-svn
  • adds pulseaudio driver
  • nbd client/server
• disable cpu emulation by default on ia64 (Xiantao Zhang)
• place test support files in a library (Jerone Young)
• fix qemu monitor screendump
• fix lost interrupt when changing a device irq
  • fixes devices going away when disabled and enabled several times
• fix oops on shutdown freeing coalesced mmio page (Akio Takebe)
• optimize segment register access in emulator
• allow run-time enabling of mmu debug
• fix host msr corruption when host preempt is enabled
• fix kvmclock (Gerd Hoffmann)
• rename badly named msrs (Sheng Yang)
• fix incorrect usage of vmcs_config when using ept (Sheng Yang)
• emulate performance counter msrs on Intel (Chris Lalancette)
  • allows Linux 2.6.9 guests to boot
• optimize vapic locking when disabled (Marcelo Tosatti)
• don't allocate dirty bitmap for s390 (Catsten Otte)
• fix memory leak on guest exit (Carsten Otte)
• update s390 guest base and limit (Christian Borntraeger)
• optimize access to guest registers (Marcelo Tosatti)
• add memory clobber to hypercalls (Anthony Liguori)
  • fixes booting guests compiled with gcc 4.3
• fix ioapic hang on heavy load (Mark McLoughlin)
• move kvmtrace definitions to common header (Hollis Blanchard)
• fix suspend/resume on AMD (Joerg Roedel)
• make some functions static (Adrian Bunk)
• fix shrinker locking (Marcelo Tosatti)
• fix ept tlb flush (Sheng Yang)
• fix signal handling on uninitialized vcpus
• fix hlt instruction in real mode (Mohammed Gamal)
• check pic irq range (Ben-Ami Yassour)
• add function to inject irqs into guests (Amit Shah)

kvm-70 [17 jun 2008]

• improve virtio net performance (Anthony Liguori)
• enable pci slot identification for OS X (Alexander Graf)
• fix guest reset (Jan Kiszka)
• code cleanups (Jan Kiszka)
• fix userspace compilation on older kernels (Chris Wright)
• support running on 2.6.16 hosts (Andrea Arcangeli)
  • including SLES 10
• generate mptable even for uniprocessor guests
  • helps esx get further along
• fix corrupted breakpoints (Jerone Young)
• on_vcpu() mechanism to execute a function on a vcpu thread
• fix 'info registers' monitor command
• fix vcpu register access livelock when a vcpu is spinning
• fix stopping on debug events (Jan Kiszka)
• fix livelocks in guest debugger (Jan Kiszka)
• add mtrr support
  • helps esx limp a bit more
• fix incorrect pmtimer overflow interrupt generation
• add 'push imm' instruction to testsuite
• fix on_vcpu() during guest debug (Jan Kiszka)
• document boot option for drive flag (Carlo Marcelo Arenas Belon)
• coalesced mmio support (Laurent Vivier)
  • should speed up some workloads
• allow kprobes to coexist with preempt notifier emulation (Andrea Arcangeli)
• allow virtio devices to reset themselves (Marcelo Tosatti)
• asynchronous virtio storage device (Marcelo Tosatti)
  • should improve performance
• fix deadlock waiting for I/O completion
• merge qemu-svn
  • remove dependency on gcc 3
  • vnc client segfault fix
  • fix vnc problems on resize
  • qemu-nbd tool
• fix libkvm memory slot destruction api (Ben-Ami Yassour)
• enable tpr optimization for smp
  • should drastically speed up Windows XP SMP guests
• big-endian kvmtrace support (Li Tan)
• remove unneeded variable (Glauber Costa)
• convert acpi tables to use the C preprocessor for less repetition
• external module compatibility for NMI (Alexander Graf)
• fix live migration with new on_vcpu() calls
• fix false flooding when a pte points to a page table
  • improves 2.4 pae guests with CONFIG_HIGHPTE
• enable NMI support on Intel (Sheng Yang)
• fix zero extension during mmio on ia64 (Jes Sorensen)
• fix hypercall return value on AMD
  • fixes running CONFIG_KVM_GUEST guests
• s390: use yield() instead of schedule() (Christian Borntraeger)
• s390: fix locking order problem (Christian Borntraeger)
• s390: handle machine checks while guest is running (Christian Borntraeger)
• s390: fix interrupt delivery (Carsen Otte)
• s390: send program check on access error (Carsen Otte)
• s390: fix race when idling (Carsen Otte)
• ppc: add lwzx/stwz instruction emulation (Hollis Blanchard)
• ppc: code cleanup (Hollis Blanchard)
• ppc: report bad gfns (Hollis Blanchard)
• optimize pio path slightly
• improve segment register ordering
• migrate pit timer on vcpu migration (Marcelo Tosatti)
• emulate jmp far instruction (Guillaume Thouvenin)
• emulate mov reg, imm instruction (Guillaume Thouvenin)
• emulate mov reg, sreg instruction (Guillaume Thouvenin)
• optimize mmu page prefetching
• emulate push imm instruction
• avoid mmu page prefetching on AMD
• allow VMware Server to take over vmx when unloading the module (Eli Collins)
• avoid spinning during large guest teardown
• fix ioapic interrupt sharing (Marcelo Tosatti)
• fix crash on resume from suspend to ram (Andrea Arcangeli)
• fix race between timer migration and vcpu migration (Marcelo Tosatti)
• close timer injection race when entering guest mode (Marcelo Tosatti)
• fix reverse map corruption with large pages (Marcelo Tosatti)
• fix large page pte updates on non-pae guests (Marcelo Tosatti)
• avoid timer injection if timer already pending (Marcelo Tosatti)
• avoid linear rip calculation if not reporting (Glauber Costa)
• fix host oops on guest userspace access to guest page table
• improve emulation failure reporting
• emulate nop and xchg reg, acc (Mohammed Gamal)
• handle undecoded rex.b when r/m = 5
• simplify r/m and sib decoding
• simplify relative rip decoding
• avoid segment adjust for lea instruction

kvm-69 [19 may 2008]

• fix kvm guest clock compile error without apic (Glauber Costa)
• support PIT mode 3 (Aurelien Jarno)
  • needed by GNU Hurd
• fix host oops emulating smsw on AMD
• fake performance counter MSRs on AMD (Chris Lalancette)
  • fixes RHEL 4 guests
• fix virtio compile error on s390 (Heiko Carstens)
• fix hlt emulation when PIT is running but not injecting interrupts (Marcelo Tosatti)
• ditto for local apic (Marcelo Tosatti)
• fix kernel and userspace structure name clash on ia64 (Xiantao Zhang)
• fix GVMM module including non-PIC objects (Xiantao Zhang)
• 'make mrproper' fix (Andrew Morton)
• fix host oops on emergency reboot when hitting virt instructions
• simplify host cpu unplug
• fix kvm_vcpu_block() state race (Marcelo Tosatti)
• set iosapic pin count to 48 for ia64 (Xiantao Zhang)
• ppc: fix compile warning (Hollis Blanchard)
• ppc: fix lost simultaneous interrupts (Hollis Blanchard)
• ppc: log failed DCR accesses (Hollis Blanchard)
• ppc: order IRQ bit numbers as per docs (Hollis Blanchard)
• ppc: remove IRQ polarity code (Hollis Blanchard)
• ppc: remember state of level-triggered interrupts (Hollis Blanchard)
• ppc: emulate pci controller on 440 SoC (Hollis Blanchard)
• ppc: add pci controller to bamboo platform (Hollis Blanchard)
• external module compatibility updates
• merge qemu-svn
  • fix CVE-2007-1320 - Cirrus LGD-54XX "bitblt" heap overflow
  • allow boot device change from the monitor
  • reduce spurious vga updates
  • fix CVE-2008-2004 - format guessing vulnerability
• remove merge conflict leftover (Carlo Marcelo Arenas Belon)

kvm-68 [4 may 2008]

• Intel EPT support (Sheng Yang)
• Code cleanups (Harvey Harrison)
• Fix task switch busy bit setting (Izik Eidus)
• Reduce guest idle cpu usage on ppc (Hollis Blanchard)
• Support floating point instructions on ppc (Christian Ehrhardt)
• Fix lmsw emulation
  • fixes host oops on AMD
• Add PIT mode 4 support (Marcelo Tosatti)
  • fixes DragonflyBSD
• Avoid spurious exceptions on state reload (Jan Kiszka)
• Add SVM kvmtrace support (Joerg Roedel)
• Avoid schedule-in-atomic on 2.6.26 hosts (Andrea Arcangeli)
• Handle vma regions with no backing page (Anthony Liguori)
  • yet another step on the way to pci device assignment
• move external module compatibility code into .c file
• build: sync non-x86 kvm headers
• avoid using kernel headers; use installed libc headers instead
• don't exit iothread berfore all vcpus are stopped (Dor Laor)
• libkvm uninitialized variable fix (Marcelo Tosatti)
• remove old user/config.mak (Jerone Young)
• fix vcpu startup race (Anthony Liguori)
• dump all libkvm errors to stderr (Jan Kiszka)
• fix cross-compilation (Jerone Young)
• fix kvm_show_code() to work on ROM and real-mode (Jan Kiszka)
• allow qemu -kernel option with extboot (Mark McLoughlin)

kvm-67 [28 apr 2008]

• s390/ia64: compile fix (Christian Borntraeger)
• s390: change virtio interrupt to follow arch specification (Christian Borntraeger)
• close vcpu refcounting race (Al Viro)
• code cleanups (Hollis Blanchard, Christian Borntraeger)
• ppc 44x support (Hollis Blanchard, Jerone Young)
• reduce cr8 intercepts on AMD (Joerg Roedel)
  • speeds up Vista x64
• fix locking in paravirt mmu support (Marcelo Tosatti)
• fix ppc build on non-44x (Stephen Rothwell)
• fix PIT time-drift compensation with multiple guests (Marcelo Tosatti)
• merge qemu-svn
• spin up vcpu threads before setting lapic contents
• pass disk geometery to extboot loader (Ryan Harper)
• separate header copying from source copying in 'make sync'
• implement 'hypervisor present' cpuid bit
• fix address truncation on ia64 (Jes Sorensen)
• handle nic/storage hotplug failure gracefully (Chris Wright)
• more kvm_stat display options
• fix qemu system_powerdown with Linux guests

kvm-66 [16 apr 2008]

• adjust external module for 2.6.25 module locations (Anthony Liguori)
• fix userspace compilation failure without kernel pit (Joerg Roedel)
• kvmtrace performance monitoring mechanism (Eric Liu)
• stop all vcpus before saving their state (Marcelo Tosatti)
  • fixes smp live migration
• save/restore kernel apicbase (Marcelo Tosatti)
• block SIG_IPI signals (Marcelo Tosatti)
• smsw mem16, lmsw mem16 emulation and unit tests
• fix compile warnings (Jerone Young)
• fix reset with iothread
• ia64 architecture support (Xiantao Zhang, Anthony Xu)
• don't assume guest pages are backed by a 'struct page' (Anthony Liguori)
  • needed for pci device assignment
• register kvm's ioctl range
• fix hardware task switching buglet (Izik Eidus)
• fix mce handling on AMD (Joerg Roedel)
• do hardware task switching in hardware when NPT is enabled (Joerg Roedel)
• fix timer race waking up a halted vcpu with smp (Marcelo Tosatti)
• fix irq race leading to irqs delivery delays (Marcelo Tosatti)
• fix triple fault handling on AMD
• fix lea instruction emulation

kvm-65 [6 apr 2008]

• fix hotplug build for non-x86 (Xiantao Zhang)
• ignore reads from the apic EOI register (Glauber Costa)
  • fixes Linux 2.6.25-rclate bootup problems
• compile fixes (Carlo Marcelo Arenas Belon)
• fix ftruncate() on hugetlbfs use on older Linux hosts (Marcelo Tosatti)
• endianness fix virtio-block (Anthony Liguori)
  • fixes virtio-blk on ppc
• refactor in-kernel PIT to be a separate device (Anthony Liguori)
• separate thread for I/O completions and timers (Marcelo Tosatti)
• fix vmmouse smp (Anthony Liguori)
• fix loading uninitialized variable into apic registers (Marcelo Tosatti)
  • fixes apic being disabled on smp Linux guests running X
• disable kvm clock on Voyager or SGI Visual WS (Randy Dunlap)
• s390 support (Carsten Otte, Martin Schwidefsky, Christian Borntraeger, Heiko Carstens)
• fix large pages (Marcelo Tosatti)
• speedup msr processing on Intel via msr bitmap (Sheng Yang)
• add slab shrinker support (Izik Eidus)
  • reduces nonswappable footprint under memory pressure
• code cleanup (Joerg Roedel)
• vm refcounting (Izik Eidus)
• only mark a page as accessed if it was really accessed by the guest
• drop slots_lock while in guest mode
  • fixes long latencies with iothread
• prepopulate guest pages only after write-protecting them (Marcelo Tosatti)
  • fixes smp race leading to guest spinning

kvm-64 [27 mar 2008]

• kvm clock fixes (Glauber Costa)
• kvm clock enable/disable bit (Glauber Costa)
• in kernel pit model (Sheng Yang)
  • improves timing accuracy for certain guests
• fix bad tss handling causing ioperm() to fail on the host
• paravirt mmu support (Marcelo Tosatti, Anthony Liguori, Avi Kivity)
• set accessed bit on non-speculative shadow ptes
  • minor performance improvement
• fix init_rmode_tss() locking (Marcelo Tosatti)
• fix dirty bit being lost when write permissions are removed from a page (Izik Eidus)
• code cleanups
• module option for disabling flexpriority
• fix apic access page memory leak
• hardware task switching support (Izik Eidus)
  • for freedos and similar guests
• fix extboot failures under certain conditions (Anthony Liguori)
• export vcpu thread ID via qemu monitor (Glauber Costa)
  • can be used to implement vcpu->cpu pinning
• pci hotplug (Marcelo Tosatti)
  • can now add and remove nics and drives dynamically
• fix virtio memory region sizing (Marcelo Tosatti)
• fix segfault on disabled virtio nic (Dor Laor)
• fix sci interrupt on pmtimer wraparound (Dor Laor, Yaniv Kamay)
• fix qemu exit on pci hotplug failure (Ryan Harper)
• fix 'make clean' destroying configuration (Ryota Ozaki)
• ppc userspace updates (Jerone Young)
• improve IDE and SCSI DMA speed

kvm-63 [5 mar 2008]

• portability: make room for the ia64 register stack (Xiantao Zhang)
• fix leak when setting the pv clock to an invalid address (Marcelo Tosatti)
• detect vcpu triple faults (Joerg Roedel)
• fix race when instantiating a shadow pte
• fix host crash on guest kexec
• code cleanups (Harvey Harrison)
• better tsc handling on Intel hosts with stable tscs
• cpu hotplug (Glauber Costa)
• merge qemu-cvs
  • new curses display option
• change -hugetlb-path to -mem-path (Anthony Liguori)
• increase pci support from 6 slots to 32 slots
• document ./configure --disable-cpu-emulation (Jerone Young)
• fix powerpc cpu initialization (Jerone Young)
• simplify host_cpuid() assembly code

kvm-62 [26 feb 2008]

• fix oops running external module on 2.6.25 due to mmdrop (Andrea Arcangeli)
• backward compatibility for 2.6.25 desc_struct changes
• fix memory alias mixup (Uri Lublin)
• add file:// migration protocol (Uri Lublin)
• fix reading from character devices with flow control (Jan Kiszka)
• large host page support (Marcelo Tosatti)
• fix screen corruption with high resolutions (Andreas Winkelbauer)
• implement vmware vga for kvm (Soren Hansen, Anthony Liguori)
• even more resolutions for -std-vga (Andreas Winkelbauer)
• code cleanups (Carlo Marcelo Arenas Belon, Harvey Harrison)
• allow up to 16 vcpus (Anthony Liguori, Avi Kivity)
• allow up to 16 memory slots
• improve vcpu_run error reporting
• fix host crash on hosts without EFER (Intel Core not 2s)
• drop kvm private segment descriptor in favor of Linux' desc_struct
• stat counter for hypercalls (Amit Shah)
• fake values for MSR_PERF_STATUS (Alexander Graf)
  • needed for Darwin/OS X
• better root pagetable unpinning (Marcelo Tosatti)
• paravirt clock fixes (Glauber Costa, Marcelo Tosatti)
• avoid host hang when guest sets APIC timer to zero
  • also fixes live migration of Windows 2000 guests
• fix RHEL 5 i386 smp boot due to timer interrupts being routed to all vcpus

kvm-61 [19 feb 2008]

• paravirtualized clock (Glauber de Oliveira Costa)
• mmu debug compile fix (Marcelo Tosatti)
• last branch record virtualization on AMD (Joerg Roedel)
• fix Windows x64 installer crash on AMD (Joerg Roedel)
• use new kvm semaphore instead of mmap_sem (Izik Eidus)
  • fixes potential deadlock
• fix type in vmx header (Ryan Harper)
• make the supported cpuid ioctl system-wide instead of per-vm
• fix setting cr0 from userspace (Paul Knowles)
• add group decoding support to the x86 emulator
• nested paging support on AMD (Joerg Roedel)
• allow access to EFER on 32-bit hosts (Joerg Roedel)
  • allows using the nx bit
• fix copy_from_user_inatomic() call non-preemptible hosts (Andrea Arcangeli)
• fix smp Linux on AMD (Joerg Roedel)
• make the code more ppc friendly (Hollis Blanchard)
• add virtual processor identifier support (VPID) on Intel (Sheng Yang)
• don't expose pio page to host userspace on non-x86
• decouple mmio from shadow page tables
• make function pointer tables constant (Jan Engelhardt)
• merge qemu-cvs
  • reverse vnc connections
  • e1000 nic emulation
  • more audio options
  • usb serial device emulation
  • cdrom/dvd improvements
  • timer tick reduction
• e1000 pxe boot rom (Alexey Eremenko)
• fix 'make clean'
• merge bios from boch-cvs
  • adds dmi tables
  • enables acpi on 32-bit Linux guests
• workaround qemu tcg breakage on non-x86 (Anthony Liguori, Xiantao Zhang)
• adjust external module for removal of fastcall in mainline (Andrea Arcangeli)
• improve qemu main loop
• fix live migration with tpr optimization
• fix external module miscompile with newer kernels (Andrea Arcangeli)
• fix external module include directory priority problems (Andrea Arcangeli)
• fix 32-bit host userspace on 64-bit host kernels
• fix preempt notifier emulation clash with host hardware debug registers (Andrea Arcangeli)
• adjust external module for 2.6.25
• fix ioapic live migration not transferring some registers (Chris Lalancette)
• separate tpr optimization paths for smp and up
• pio emulation on mmio for ia64 (Xiantao Zhang)
• fix qemu timer rearm fallout from last merge (Anders Melchiorsen)
• clean up kvm/qemu interaction (Anthony Liguori)
• improve ppc dcr handling (Jerone Young)
• fix 64-bit guest migration failure due to bad lm_capable_kernel init (Uri Lublin)
• fix bios parallel build (Carlo Marcelo Arenas Belon)
• update virtio abi (Anthony Liguori)
• support virtio abi versioning (Anthony Liguori)
• add powerpc kvm/qemu support (Jerone Young)
• support ppc 440 "bamboo" board (Jerone Young)
• improve migration error handling (Chris Lalancette)
• enable cache on reset in bios
• fix up testsuite warnings (Bernhard Kaindl)
• fix aio deadlocks with smp guests

kvm-60 [23 jan 2008]

• fix compilation with older kernels (Andi Kleen)
• virtio host support (Anthony Liguori, Dor Laor)
  • includes block and network devices
• fix power management timer overflow handling
• fix qemu running with older kernels
• boot from scsi/virtio (Anthony Liguori)
• add 1280x800 resolution to -std-vga
• fix acpi sci interrupt generation
• compile fixes (Carlo Marcelo Arenas Belon)
• update ide cdrom to match qemu (Carlo Marcelo Arenas Belon)
• fix extboot on older gcc (Christian Ehrhardt)
• powerpc dcr tests (Christian Ehrhardt)
• rtl8139 is now the default nic type (Guido Guenther)
• acpi power button support (Guido Guenther)
• powerpc testsuite harness (Hollis Blanchard)
• powerpc libkvm support (Jerone Young)
• bump piix4 to rev 3 to avoid slowdown reading pm timer (Marcelo Tosatti)
• migration updates (Uri Lublin)
• ia64 smp support in qemu (Xiantao Zhang)
• fix acpi vapic page on save/restore
• move x86 fpu to x86 specific header (Christian Ehrhardt)
• minor shadow code simplification(Eddie Dong)
• optimize pae pte updates (Eddie Dong, Eric Liu)
• simplify shadow hash table indexing (Eddie Dong)
• kvm_para.h compile fix (Glauber de Oliveira Costa)
• dirty page tracking fix (Izik Eidus)
• fix svm lazy fpu switching (Joerg Roedel)
  • fixes Vista x64 on AMD
• only allow vmcall/vmmcall on #UD traps (Sheng Yang)
• fix unbounded latency due to a race in the guest entry code
  • with this fix and a realtime kernel, sub 50usec worst case latencies can be achieved
• move apic timer migration to preemptible code

kvm-59 [3 jan 2008]

• merge qemu-cvs
  • -drive cache=[on|off] option
  • adds scsi passthrough
• ide lba48 support for 120GB+ disk images
• widescreen resolutions for -std-vga
• libkvm compile fixes (Carlo Marcelo Arenas Belon)
• mmu scaling (Marcelo Tosatti, Avi Kivity)

kvm-58 [27 dec 2007]

• add mmu statistics
• log data on write to unimplemented msr
• fix memory corruption (mapcount error) after host fork() (Izik Eidus)
• improve preempt notifier emulation on older kernels (Andrea Arcangeli)
• refactor IDE CHS guessing (Anthony Liguori)
• testsuite improvements
• apic tpr acceleration for Windows guests
  • disabled on smp for now
• fix warnings due to qemu merge (Carlo Marcelo Arenas Belon)
• improve support for older kernels (Carlo Marcelo Arenas Belon)
• icache sync in qemu after dma for more archs (Christian Ehrhardt)
• simplify mmio callback (Christian Ehrhardt)
• align gdbstub with qemu-cvs (Jan Kiszka)
• fix compile if kernel/include/asm/ preexists (Sheng Yang)
• fix migration on i386 hosts (Uri Lublin)
• qemu ia64 adjustments (Zhang Xiantao)

kvm-57 [18 dec 2007]

• warn when emulating preempt notifiers
• add pio port 0x80 access test to testsuite
• merge qemu-cvs
• add rtc emulation for ia64 (Xiantao Zhang)
• fix qemu memory allocation off-by-one
• new kernel source layout (virt/kvm/, arch/x86/kvm/)
• coalesce remote tlb flushes when write-protecting guest pages (Eddie Dong)
• lapic debug compile fix (Joerg Roedel)
• fix smp mmu shadow instantiation race (Marcelo Tosatti)
• atomic cmpxchg8b on i386 (Marcelo Tosatti)
• throttle vmx_intr_assist() printk (Ryan Harper)
• portability (Xiantao Zhang)

kvm-56 [14 dec 2007]

• Generalize exception handling mechanism
• fix x86 emulator eflags handling
• avoid exit to userspace on cr8 write if using kernel lapic on Intel
• fix stack instructions emulation in 64-bit mode
  • fixes Vista x86
    • except on Woodcrests
• trap cr8 access on amd
• mmu simplification
• fix setting nx bit on shadow pte
• fix inherited mmu permissions
• more portability work (Hollis Blanchard, Xiantao Zhang)
• add cr8 to 'mov cr' instruction emulation (Joerg Roedel)
• exit to userspace on cr8 write if not kernel apic on amd (Joerg Roedel)
• atomically set accessed and dirty bit on guest ptes (Marcelo Tosatti)
• use ->fault() vma op instead of ->nopage()
• remove abi 10 libkvm compatibility
• add some x86 emulator tests
• add many mmu access tests
• fix rpm build on Fedora 8 (Dan Kenigsberg)
• fix 'make sync' on debian and derivatives (Ryan Harper)
• fix live migration (Uri Lublin, Izik Eidus)
• initial ia64 userspace (Xiantao Zhang)

kvm-55 [4 dec 2007]

• remove old hypercall driver (Anthony Liguori)
• disable dirty page logging for main memory (Izik Eidus)
• fix incorrect page count calculation for dirty logging (Izik Eidus)
• improve testsuite 'make clean' (Neo Jia)
• compile fix (Sheng Yang)
• reorganize x86 emulator main switch
• don't bypass mmu on pae cr3 reload if pdptrs changed
  • fixes Solaris x86
• use common defines for EFER (Carlo Marcelo Arenas Belon)
• portability (Xiantao Zhang)
• fix kvm_init() error path (Xiantao Zhang)
• ia64 iosapic support (Xiantao Zhang)

kvm-54 [27 nov 2007]

• fix fpu leak on AMD (Amit Shah)
  • (on kvm-53, lazy fpu was disabled, so this just improves performance)
• prefetch instruction bytes when emulating
• implement guest page fault bypass on nonpae
  • should speed up some 32-bit guests
• add a bunch of statistics
• avoid unnecessary remote tlb flushes
  • improves guest smp scaling
• avoid mmu reloads on guest tlb flushes
• mmu code simplification
• disallow using kvm after fork()
• fix failures while injecting external interrupts in real mode
  • fixes Mandrake 9 regression
• fix multiple address- and operand- size override prefix emulation
• infrastructure for using host cpu features on guest (Dan Kenigsberg)
  • not used yet by qemu
• cmps instruction emulation (Guillaume Thouvenin)
  • allows OpenBSD to boot
• cleanups (Hollis Blanchard)
• fix potential memory leak in real-mode smp (Izik Eidus)
• reduce unnecessary dirtying of pages (Izik Eidus)
• mark guest pages as accessed with the Linux lru (Izik Eidus)
• more portability work (Jerone Young, Xiantao Zhang)
• allow new vmx features even if not using in-kernel apic (Sheng Yang)
• refactor shadow mmu size calculation (Xiantao Zhang)
• improve testsuite
• beginning of x86 emulator unit test
• fix compile warnings (Carlo Marcelo Arenas Belon)
• log module version in dmesg on load

kvm-53 [20 nov 2007]

• testsuite: exit on end of test
• batch mode for kvm_stat script
• compile fixes (Carlo Marcelo Arenas Belon, Joe Perches)
• portability (Jerone Young, Zhang Xiantao)
• disable lazy fpu on AMD (Amit Shah)
  • should fix instability on AMD
  • will cause performance regression, fix in progress
• x86 emulator: fix 'push r/m' emulation (Amit Shah)
• register use reduction in vmx guest entry
• infrastructure for per-vm stats
  • extends existing per-vcpu stats
• add mmu, state switch, emulation statistics
• use copy_{to,from}_user to access guest memory (Izik Eidus)
• simplify access to guest page tables (Izik Eidus)
• fix entry to real mode with segment bases beyond 1MB (Jan Kiszka)
• finally kill last use of cr2 in emulator (Sheng Yang)

kvm-52 [12 nov 2007]

• fix efer reload host crash on T2600 and similar processors
• revert sleepy interrupt injection
  • fixes "Fault when IDT_Vectoring"
• atomically inject real-mode interrupts
• wbinvd exiting on newer Intel processors (Eddie Dong)
  • fixes real-time issues
• fix call/jmp instruction emulation (Izik Eidus)
  • fixes Vista x64 installation
• fix save/restore/migrate with multiple nics
• fix build on i386 uniprocessor w/ no ioapic hosts
• fix smp_call_function_single() emulation on older hosts
  • fixes smp guests not booting on RHEL 5 hosts
• make qemu/kvm memory allocation match plain qemu more closely (Izik Eidus)
  • fixes issues with large memory guests
• libkvm compile fixes (Carlo Marcelo Arenas Belon, Jerone Young)

kvm-51 [7 nov 2007]

• fix some x86 emulator one-byte insns (fixes W2K3 installer again)
• fix host hangs with NMI watchdog on AMD
• fix guest SMP on AMD
• fix dirty page tracking when clearing a guest page (Dor Laor)
• more portability work (Hollis Blanchard, Jerone Young)
• fix FlexPriority with guest smp (Sheng Yang)
• improve rpm specfile (Akio Takebe, Avi Kivity)
• fix external module vs portability work (Andrea Arcangeli)
• remove elpin bios due to license violation
• testsuite shutdown pio port
• don't advertise svm on the guest
• fix reset with kernel apic (Markus Rechberger)

kvm-50 [2 nov 2007]

• fix smp_call_function_mask() emulation on preemptible kernels
• move libkvm into own directory (Hollis Blanchard)
• fix save/restore/migrate for new memory slot management (Uri Lublin)
• compile fixes (Uri Lublin, Avi Kivity)
• fix recursive locking on mmap() (Anthony Liguori)
• remove some cr2 dependencies from x86 emulator
• further simplify x86 emulator
• more portability work (Carsten Otte, Hollis Blanchard)
• Intel FlexPriority support (Sheng Yang)
• fix dirty page tracking on aliased pages (Uri Lublin)

kvm-49 [29 oct 2007]

• Fix PIT time-drift-fix (only with -no-kvm-irqchip) (Dan Kenigsberg)
• Fix vnc auth error with clients <= 3.7 protocol (Dan Kenigsberg)
• Don't spin on hlt with interrupts disabled (Dor Laor)
• Fix pxe boot (Izik Eidus)
• Hide the Intel real-mode tss from userspace (Izik Eidus)
• Automatic memory slot management for libkvm (Izik Eidus)
• Fix problem with std-vga and 4GB guests (Izik Eidus)
• External module compat for smp_call_function_mask() (Laurent Vivier)
• More portability work (Jerone Young, Christian Borntraeger, Zhang Xiantao)
• Fix sleep-in-atomic-context during vcpu init
• Fix 'push imm8' emulation (fixes W2K3 installer)
• Intercept invd and wbinvd on AMD
• Reduce emulator dependency on cr2 (mov abs insns)
• Move page fault processing to common code
• Fix rmap memory consumption oops due to increased rmap usage with swap
• Fix potential memory leak with kernel-allocated memslots (Izik Eidus)
• Export memory slot allocation mechanism (Izik Eidus)
• Add kernel-private memslots (Izik Eidus)
• Fix local apic divide-by-zero (Kevin Pedretti)
• Improve local apic timer wraparound handling (Kevin Pedretti)
• Use newly available smp_call_function_mask() (Laurent Vivier)
• Micro-optimize register usage on vmentry/vmexit (Laurent Vivier)
• Cleanups, compilation fixes (Akio Takebe, Anthony Liguori, Avi Kivity)

kvm-48 [18 oct 2007]

• use precise cpu accounting on ppc and s390 (Christian Borntraeger)
• make guest time accounting actually work (Laurent Vivier)
• fix host memory corruption when setting the guest dirty bit
• allow swapping with older userspace (Anthony Liguori)
• allow custom memory setup using libkvm (Gerd Hoffmann)

kvm-47 [18 oct 2007]

• Reset fixes (Eddie Dong, Avi Kivity)
• Portability work (Carsten Otte)
• Cleanups (Anthony Liguori, Laurent Vivier)
• Simplify guest pagetable dirty bit management
• Fix nx bit for huge pages
• Fix write access to clean large pages (fixes rmap leak)
• Support for Linux 2.6.16 guests (movnti instruction) (Sheng Yang)
• Simplify apic timer backlog processing
• Move interrupt injection out of critical section
• x86 emulator work (Nitin A Kamble)
• restore freebsd support on AMD (fix smsw and lmsw) (Aurelien Jarno)
• Simplify guest page table walker
• Partial guest swapping (Izik Eidus)
• kvmctl improvements (Anthony Liguori)
• libkvm, qemu compilation against older kernels
• guest time accounting (Laurent Vivier)
• configure improvements (Carlo Marcelo Arenas Belon)
• fix 4GB+ configurations (Izik Eidus)
• cross compilation support (Jerone Young)

kvm-46 [10 oct 2007]

• fix host oops on bad guest ioapic accesses
• handle NMIs before enabling host interrupts
• add general guest memory accessors (Izik Eidus)
• allow user control over shadow cache size (Izik Eidus)
• auto tune shadow cache size with guest memory (Izik Eidus)
• allocate guest memory in userspace instead of in kernel (Izik Eidus)
• code style fixes (Mike Day, Anthony Liguori)
• lapic cleanups (Rusty Russell)
• fix acpi interrupt reporting for FreeBSD
• fix color problems on certain displays
• Red Hat 7.1 support
• vmmouse support (Dan Kenigsberg)
• fix sdl window caption when keyboard is captured (Dan Kenigsberg)
• improve libkvm configure script (Jerone Young)
• improve bios compilation support on x86_64 hosts (Laurent Vivier)
• fix acpi processor reporting for Windows 2000 with the ACPI HAL (Sheng Yang)

kvm-45 [2 oct 2007]

• don't use page->private for guest pages (Izik Eidus)
• x86 emulator cleanups, simplifications, and fixes (Laurent Vivier, Qing He)
• apic round robin delivery mode cleanup (Qing He)
• merge qemu-cvs
• fix compilation on older kernels (Rusty Russell, Avi Kivity)
• reduce tap networking latency
• fix FC6 x86_64 booting with -no-kvm
• fix code dump on exception

kvm-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)

kvm-43 [21 sep 2007]

• fix ioapic edge-triggered interrupt handling

kvm-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)

kvm-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)

kvm-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

kvm-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)

kvm-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

kvm-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)

kvm-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)

kvm-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)

kvm-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)

kvm-33 [23 jul 2007]

• fix massive performance regression

kvm-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)

kvm-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.

kvm-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

kvm-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)

kvm-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)

kvm-27 [3 jun 2007]

• use slab cache for mmu shadow pages
• make shadow pte updates atomic (for guest smp)
• general mmu cleanups

kvm-26 [27 may 2007]

• implement wbinvd emulation, triggered by Windows Vista
• compile fixes (Markus Rechberger, Avi Kivity)

kvm-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)

kvm-24 [8 may 2007]

• fix oops loading kvm-intel module on i386 with highmem

kvm-23 [7 may 2007]

• OpenBSD 4.1 i386 support (Matthew Gregan)
• Fix host and guest crashes on reboot

kvm-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

kvm-21 [27 apr 2007]

• fix regression on Core (not Core 2) processors
• performance improvements (Eddie Dong, Anthony Liguori)
• minor fixes

kvm-20 [24 apr 2007]

• Windows 2000 support
• performance enhancements
• patch against latest kernel tree included in tarball
• fix oops with 32-bit nonpae guests

kvm-19 [16 apr 2007]

• bug fixes
• memory aliasing api

kvm-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

kvm-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

kvm-16 [7 mar 2007]

• bug fixes (including a nasty one on module load)
• use lanana assigned minor device number for /dev/kvm

kvm-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

kvm-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

kvm-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

kvm-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)

kvm-11 [11 jan 2007]

• stabilization fixes
• vmexit profiling (Ingo Molnar; requires Linux 2.6.20+)

kvm-10 [7 jan 2007]

• more hypercall work
• cleanup irq handling
• shadow page table caching
• migration fixes
• stabilization fixes

kvm-9 [31 dec 2006]

• API documentation (James Jacobsson)
• More stabilization fixes (Yoshimi Ichiyanagi, Ingo Molnar, Nguyen Anh Quynh)
• Interactivity improvements (Dor Laor)

kvm-8 [21 dec 2006]

• msr fixes (Michael Riepe)
• more guest support (Michael Riepe)
• random fixes
• fpu state corruption fix on AMD hosts

kvm-7 [12 dec 2006]

• prevent loading arch module on wrong hardware
• fix for macbooks
• other minor fixes

kvm-6 [11 dec 2006]

• AMD 32-bit host support (Anthony Liguori)
• more migration work
• stabilization
• improved performance
• improved guest support on AMD

kvm-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

kvm-4 [21 nov 2006]

• added the msr work
  • suspend/resume should work now
• more vmdk compatibility work
• random build updates

kvm-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'

?? [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)

lkml submission 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

lkml submission 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)

lkml submission 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

lkml submission v1 [19 oct 2006]

• [4]