disable the Nagle algorithm in the host-side connection. Either
the VM is already doing Nagle, in which case there is no point
in doing it twice, or it has chosen to disable it, in which case
we should respect that choice. This change speeds up GDB remote
debugging over TCP over user mode networking by multiple orders
of magnitude.
Changelog:
qed: fix use-after-free during l2 cache commit
sdl: Fix termination in -no-shutdown mode
Fix termination by signal with -no-shutdown
Add support for finding libpng via pkg-config.
Check for presence of compiler -pthread flag.
Allow overriding the location of Samba's smbd.
Fix linker scripts
Fix install(1) usage to be compatible with OpenBSD's install(1).
Fix qjson test of solidus encoding
configure: Copy test data to build directory
monitor: fix build breakage for !CONFIG_VNC
monitor: fix build breakage with --disable-vnc
Fix forcing multicast msgs to loopback on OpenBSD.
user: Restore debug usage message for '-d ?' in user mode emulation
* patch-aa is for tap detection bug.
* patch-bb is for build on NetBSD 4.
The patch-aa requires bump of PKGREVISION.
Pointed out by Sergey Svishchev in private e-mail.
* Many bug fixes and improvements
* Add LatticeMico32 and unicore32 targets are added.
* And many changes. See http://wiki.qemu.org/ChangeLog/0.15
Tested on NetBSD/i386 current, NetBSD/i386 5.1, DragonFly/i386 2.10.1,
and Gentoo Linux/i386.
* New features are not tested yet, for example SPICE protocol support.
* I have tested on NetBSD/i386 5.99.54 and DragonFly/i386 2.10.1 as host,
NetBSD/{amd64, i386, sparc} as guest.
Changelog:
0.14.1
virtio-blk: fail unaligned requests
qed: Fix consistency check on 32-bit hosts
exit if -drive specified is invalid instead of ignoring the "wrong" -drive
vhost: fix dirty page handling
Do not delete BlockDriverState when deleting the drive
vnc: tight: Fix crash after 2GB of output
lan9118: Ignore write to MAC_VLAN1 register
Don't allow multiwrites against a block device without lsi53c895a: add support for ABORT messages
virtio-pci: fix bus master work around on load
fix applesmc REV key
rbd: don't link with -lcrypto
net: Add the missing option declaration of "vhostforce"
lsi53c895a: Update dnad when skipping MSGOUT bytes
Revert "prep: Disable second IDE channel, as long as ISA IDE emulation doesn't support same irq for both channels"
isa-bus: Remove bogus IRQ sharing check
virtio-net: Fix lduw_p() pointer argument of wrong size
hw/sd.c: Add missing state change for SD_STATUS, SEND_NUM_WR_BLOCKS
vnc: Fix fatal crash with vnc reverse mode
qemu-char: Check for missing backend name
0.14.0
Targets
ARM
Most of the changes are related to bug fixes and improvements to match what the real hardware does. For now there is no new board or CPU.
MIPS
Host CPU consumption for idle guests
Timer fixes
FPU improvements
SH4
Various bug fixes and improvements including
SM501 2D engine copyrect support, needed to boot recent kernels
MMU mmaped TLB access, needed to boot recent kernels
Floating point exceptions and correct NaN support.
PPC
Fix running recent PPC64 kernels
New maintainer: Alexander Graf
Improve interrupt injection with KVM
Enable PV enabled guests for speedup with KVM
Floating point fixes
Add a ppc-440x5 Xilinx model
Add a virtex5 ml507 refdesign board for ppc-440x5
BookE MMU emulation improvements
s390x
No news, business as usual.
SPARC
Fix div(cc) and sdiv(cc) instruction emulation, fixes Xorg crash in the guest
Hosts
ARM
Fix random crashes
Fix 64-bit big-endian targets support
MIPS
Fix random crashes
IA64
Fix random crashes for 32-bit targets
Devices
IDE / AHCI
Added emulation layer for an ICH-9 AHCI controller (not yet stable). Tested with Linux, OpenBSD, Windows Vista and Windows 7. The AHCI emulation supports NCQ, so multiple read or write requests can be outstanding at the same time.
to use it, use the following command line snippet: -drive id=disk,file=<your image goes here>,if=none -device ahci,id=ahci -device ide-drive,drive=disk,bus=ahci.0
SCSI
Various bug fixes, no new features.
USB
Added USB support for remote wakeup, allowing the guest to suspend the USB bus when idle, which in turn reduces the CPU overhead of an idle machine.
The USB subsystem also got a bunch of patches to prepare it for USB 2.0 support.
virtio
virtio-pci can use ioeventfd for virtqueue notify. On systems that support KVM, the ioeventfd mechanism can be used to make virtqueue notify a lightweight exit by deferring hardware emulation to the iothread and allowing the VM to continue execution. This model is similar to how vhost receives virtqueue notifies. The result of this change is improved performance for userspace virtio devices. Virtio-blk throughput increases especially for multithreaded scenarios and virtio-net transmit throughput increases substantially. Read the commit message for more details.
Various fixes and stabilization for live-migration:
Various virtio-net improvements:
Make tx_timer timeout configurable
Limit number of packets sent per TX flush
Introduce a new bottom half packet TX
Fix cross-endianness support
PCI/PCI Express
Improved PCI Express support and functionalities with the implementation of:
flr (Function Level Reset)
aer (Advanced Error Reporting) and other improvements
A new monitor command to inject errors into the PCI bus: pcie_aer_inject_error
Implementation of Message Signaled Interrupts (MSI/MSI-X) support
Separation of the PCI bridge code from the main PCI code.
Sound
New Intel HD Audio support, adding three new devices:
intel-hda: Intel HD Audio Controller, the PCI device.
hda-duplex: HDA Codec. Attaches to the HDA bus. Supports 16bit stereo, rates 16k -> 96k, playback, recording and volume control (with CONFIG_MIXEMU=y).
hda-output: HDA Codec without recording support. Subset of the hda-duplex codec. Use this if you don't want your guests access your mic.
Usage: add '-device intel-hda -device hda-duplex' to your command line.
Tested guests:
Linux works.
Win7 works.
DOS (mpxplay) works.
WinXP doesn't work.
Real Time Clock
Fix binary/BCD mode switch
Video
Fix cirrus VGA crash with some guests
Fix curses big endian support
Block Drivers
qcow2
Added a writeback metadata cache. This improves performance of scenarios with lots of cluster allocations noticably (e.g. installation or after taking a snapshot), in some benchmarks by a factor of ten or more. Use cache=none or cache=writeback to take advantage from this change.
Copy snapshots out of QCOW2 disk, eg: qemu-img convert -f qcow2 -O qcow2 -s snapshot_name src_img bck_img
Zero-copy read and write operations
Other fixes and code cleanups:
qcow2: Invalidate cache after failed read
block: Allow bdrv_flush to return errors
qcow2: Simplify image creation
qcow2: Fixes unaligned access on IA64
qed
Introduction of the QEMU Enhanced Disk (qed) image format. It is a disk image format that forgoes features found in qcow2 in favor of better levels of performance and data integrity. Due to its simpler on-disk layout, it is possible to safely perform metadata updates more efficiently.
More information about qed: http://wiki.qemu.org/Features/QED
Initial thread discussion: http://lists.nongnu.org/archive/html/qemu-devel/2010-09/msg00310.html
ceph/rbd
Introduction of the new ceph/rbd block driver. RBD is an block driver for the distributed file system Ceph.
More information about ceph: http://ceph.newdream.net/
nbd
Improve qemu-nbd performance by 4400 %. This patch combines the reply header and payload send operation.
Introduce NBD named exports.
Spice
New support for the SPICE protocol. The project main focus is to provide high-quality remote access to QEMU virtual machines. More information about SPICE can be found at the project's web site: http://spice-space.org/
New qxl device. qxl is a paravirtual graphics card. The qxl device is the bridge between the guest and the spice server (aka libspice-server). The spice server will send the rendering commands to the spice client, which will actually render them. The spice server is also able to render locally, which is done in case the guest wants read something from video memory. Local rendering is also used to support display over vnc and sdl. qxl is activated using -vga qxl. qxl supports multihead, additional cards can be added via '-device qxl.
Relevant commits:
spice: core bits
spice: add keyboard
spice: add mouse
spice: simple display
spice: add tablet support
spice: tls support
spice: make compression configurable.
spice: add config options for channel security.
spice: add config options for the listening address
spice: add misc config options
spice: add audio
spice: add qxl device
spice: connection events.
QMP / monitor
TODO: QMP is now stable, except for error reporting?
The work to facilitate the management of QEMU instances has been improved. QMP has received various fixes. Now it is possible to call a traditional monitor command through QMP, in case your application depends on the output or the command is not yet ported to QMP.
New commands:
query-spice / info spice
human-monitor-command
set_password
drive_del
block_resize command, allowing resizing of block devices while qemu is running. For virtio-blk the size is updated automatically when this command is issued on the host. IDE is not supported. For SCSI devices the new size can be updated in Linux guests by doing the following shell command:
echo > /sys/class/scsi_device/0:0:0:0/device/rescan
Tracing
Introduction of platform-independent tracing, more information about it: http://wiki.qemu.org/Features/Tracing
Documentation and tutorial: http://git.qemu.org/qemu.git/plain/docs/tracing.txt
Some relevant commits:
Add trace-events file for declaring trace events
Add a DTrace tracing backend targetted for SystemTAP compatibility
Add LTTng Userspace Tracer backend
Add simple built-in tracing backend
Add stderr trace-event backend:
Support for dynamically enabling/disabling trace events
Specify trace file name
Add trace-file command to open/close/flush trace file
Other stuff
Extend -option-rom command to have additional parameter bootindex
Little endian / big endian MMIO framework. Until now, most devices had special hacks to allow them to work on big and little endian systems (ppc / x86). With that framework, they should mostly work with both and not require and device specific hacks anymore.
"Looks good" from wiz@ and obache@.
ChangeLog for 0.13.0 is not updated but there is a list in announcement:
This release consists of over 2,500 commits from 145 contributors.
Some major features were added in this release including:
- vhost-net: kernel-accelerating network backend for virtio devices (using KVM)
- qmp: significant improvements covering most monitor commands
- vnc: introduction of new encodings that dramatically improve bandwidth
(part of GSoC project)
- ivshmem: new shared memory device allowing multiple guests to share
a memory region
- mips: introduction of fulong mini-pc
- virtio-9p: introduction of a paravirtual file system passthrough mechanism
- hpet: many enhancements
- target-s390: support for s390 usermode emulation
- many more features and bug fixes
A special note about QMP support in 0.13.0. QMP is still considered
experimental in 0.13.0. There are no plans to change the protocol
in an incompatible way but there are likely to be missing features.
ChangeLog for version 0.12.5:
- audio/alsa: Handle SND_PCM_STATE_SETUP in alsa_poll_handler
- block: Handle multiwrite errors only when all requests have completed
- block: Fix early failure in multiwrite
- vpc: Use bdrv_(p)write_sync for metadata writes
- vmdk: Use bdrv_(p)write_sync for metadata writes
- qcow2: Use bdrv_(p)write_sync for metadata writes
- qcow: Use bdrv_(p)write_sync for metadata writes
- block: Add bdrv_(p)write_sync
- qcow2: Restore L1 entry on l2_allocate failure
- block/vdi: Fix image opening and creation for odd disk sizes
- block/vpc: Fix conversion from size to disk geometry
- qcow2: Remove abort on free_clusters failure
- vmdk: Fix COW
- qcow2: Fix creation of large images
- vmdk: fix double free
- qemu-options: add documentation for stdio signal=on|off
- target-arm : fix parallel saturated subtraction implementation
- target-arm : fix thumb2 parallel add/sub opcode decoding
- target-arm: fix addsub/subadd implementation
- target-i386: fix xchg rax,r8
- block/vvfat.c: fix warnings with _FORTIFY_SOURCE
- audio/alsa: Spelling typo (paramters)
- target-mips: fix DINSU instruction
- Correct definitions for FD_CMD_SAVE and FD_CMD_RESTORE
- qcow2: Fix corruption after error in update_refcount
- qcow2: Fix corruption after refblock allocation
- block: Fix multiwrite with overlapping requests
- qcow2: Fix error handling in l2_allocate
- qcow2: Clear L2 table cache after write error
- ide: Fix ide_dma_cancel
- usb-bus: fix no params
- Avoid crash on '-usbdevice <device>' without parameters
- Fix -usbdevice crash
- Fix multiboot compilation
- Fix missing symbols in .rel/.rela.plt sections
- target-ppc: fix RFI by clearing some bits of MSR
- Fix typo in balloon help
- arm_timer: fix oneshot mode
- arm_timer: reload timer when enabled
- qemu-sockets: avoid strlen of NULL pointer
- block: fix aio_flush segfaults for read-only protocols (e.g. curl)
- virtio-blk: fix barrier support
- block: fix sector comparism in multiwrite_req_compare
- pci: irq_state vmstate breakage
- qemu-img: use the heap instead of the huge stack array for win32
Pkgsrc changes:
patch-aa
patch-ao
patch-ba
patch-de
patch-ed
- lifted from previous (some adjustments per upstream changes)
patch-ab
- removed (looks similar fix applied in upstream)
patch-dd
- adjust configure for location of man page dir (as previous)
- fix detection for arm hosts
patch-dk
- removed (looks no longer applicable due to reorganized upstream)
patch-ee
- remove old e1000.c fix (pulled up to upstream)
- pull block/sheepdog.c build fix on *BSD hosts from upstream
patch-ef
patch-eg
patch-eh
patch-ei
- workaround for conflicts with SSP read() macro in NetBSD's <ssp/unistd.h>
(PR lib/43832: ssp causes common names to be defines)
patch-ej
- pull build/warning fixes in ui/vnc-enc-tight.c from upstream
patch-ek
- pull ATA PIO fix (by jakllsch@) from upstream
- pull warning fix from upstream
patch-el
- workaround for missing C99 FP macro on netbsd-4
(PR pkg/42899, but od(1) fixes for netbsd-4 not included)
patch-em
patch-en
- build fix on NetBSD/arm host using gcc-4.1.3
(built qemu binary on NetBSD/hpcarm host fails though)
patch-eo
patch-ep
patch-er
patch-es
- pull ESP SCSI DMA fixes (that might affect sparc) from upstream
patch-eq
- pull ESP SCSI DMA fixes from upstream
- disable broken ARC JAZZ floppy that causes hang on MIPS NT 4.0 guest
Makefile
- bump DISTNAME
- add makeinfo to USE_TOOLS
XXX: gets "qemu-doc.texi:7: warning: unrecognized encoding name `UTF-8'."
- adjust SUBST_FILES.qaudio per upstream changes
- enable nbd support *BSD per upstream update
PLIST
distinfo
- update per each file
---
version 0.12.4:
- Workaround for broken OSS_GETVERSION on FreeBSD, part two (Juergen Lock)
- oss: fix fragment setting (malc)
- oss: issue OSS_GETVERSION ioctl only when needed (malc)
- oss: refactor code around policy setting (malc)
- oss: workaround for cases when OSS_GETVERSION is not defined (malc)
- block: Free iovec arrays allocated by multiwrite_merge() (Stefan Hajnoczi)
- lsi: fix segfault in lsi_command_complete (Gerd Hoffmann)
- lsi: pass lsi_request to lsi_reselect (Gerd Hoffmann)
- lsi: move dma_len+dma_buf into lsi_request (Gerd Hoffmann)
- lsi: move current_dev into lsi_request (Gerd Hoffmann)
- lsi: have lsi_request for the whole life time of the request. (Gerd Hoffmann)
- lsi: use QTAILQ for lsi_queue (Gerd Hoffmann)
- tcp/mips: Change TCG_AREG0 (fp -> s0) (Stefan Weil)
- sh_pci: fix memory and I/O access (Aurelien Jarno)
- Fix incoming migration with iothread (Marcelo Tosatti)
- Fix SIGFPE for vnc display of width/height = 1 (Chris Webb)
- net: remove broken net_set_boot_mask() boot device validation (Eduardo Habkost)
- qcow2: Remove request from in-flight list after error (Kevin Wolf)
- qcow2: Don't ignore immediate read/write failures (Kevin Wolf)
- block: Fix multiwrite memory leak in error case (Kevin Wolf)
- block: Fix error code in multiwrite for immediate failures (Kevin Wolf)
- block: Fix multiwrite error handling (Kevin Wolf)
- scsi-disk: fix buffer overflow (Gerd Hoffmann)
- qcow2: Rewrite alloc_refcount_block/grow_refcount_table (Kevin Wolf)
- qcow2: Factor next_refcount_table_size out (Kevin Wolf)
- block: avoid creating too large iovecs in multiwrite_merge (Christoph Hellwig)
- json-parser: Fix segfault on malformed input (Kevin Wolf)
- linux-user: switch default ppc64 CPU to 970fx from 970 (Aurelien Jarno)
- target-sh4: MMU: fix store queue addresses (Aurelien Jarno)
- target-sh4: MMU: fix ITLB priviledge check (Aurelien Jarno)
- target-sh4: MMU: fix mem_idx computation (Aurelien Jarno)
- sh7750: handle MMUCR TI bit (Aurelien Jarno)
- UHCI spurious interrut fix (Paul Brook)
- tcg/mips: fix branch offset during retranslation (Aurelien Jarno)
- tcg/arm: correctly save/restore registers in prologue/epilogue (Aurelien Jarno)
- workaround for cmd646 bmdma register access while no dma is active (Igor V. Kovalenko)
- Fix corner case in chardev udp: parameter (Jan Kiszka)
- Don't set default monitor when there is a mux'ed one (Jan Kiszka)
- spelling typo (compatibilty) in hw/fw_cfg.c (Vagrant Cascadian)
- fdc: fix drive property handling. (Gerd Hoffmann)
- target-i386: fix commit c22549204a6edc431e8e4358e61bd56386ff6957 (TeLeMan)
- target-i386: fix SIB decoding with index = 4 (Aurelien Jarno)
- Fix segfault with ram_size > 4095M without kvm (Ryan Harper)
- target-i386: Fix long jumps/calls in long mode with REX.W set (malc)
- target-i386: fix lddqu SSE instruction (Aurelien Jarno)
- qemu-char.c: drop debug printfs from qemu_chr_parse_compat (Jan Kiszka)
- fix undefined shifts by >32 (Paolo Bonzini)
- Fix qemu -net user,hostfwd= example (Aurelien Jarno)
---
Also add a patch for e1000.c NIC to make wm(4) work on NetBSD guest:
---
* Reset EEPROM internal state on CS rise edge,
not SK rise edge during CS is low, per CS pin description in
the FM93C06 EEPROM manual:
"... a rising edge on this signal is required to reset the
internal state-machine to accept a new cycle ..."
Intel's em driver seems to explicitly raise and lower SK output
after CS is negated in em_standby_eeprom() so many other OSes
that use Intel's driver don't have this problem, but I can't find
articles that say the MICROWIRE or EEPROM spec requires such sequence.
* It isn't a good idea to use memset(,0,) to clear EEPROM state values,
so explicitly clear status members and preserve the previous EECD values
---
This patch is also filed as upstream QEMU bugs #581737.
While here, several tweaks in Makefile to appease pkglint.
tap backend work on NetBSD (NetBSD uses an ioctl to get the tap name).
patch-ab: add support for the "select without ATN" to the emulated
esp device. NetBSD's esp(4) uses this command and aborts after a timeout.
While there fix the homepage URL.
Now NetBSD/sparc 5.0.1 boots and runs fine in qemu-system-sparc on a
NetBSD/amd64 host.
Bump pkgrevision.
Emulate the speaker port's refresh clock bit. This is supposed
to toggle between 0 and 1<<4 every 15 microseconds. XXX: We use
gettimeofday() in the real machine instead of a monotonic clock
in the virtual machine, and we are a bit sloppy about the 15
microseconds. This should be good enough for crude loops that
measure approximate delays by counting how often this line toggles.
Bump PKGREVISION to 1
patch to let this build on systems without POSIX AIO.
version 0.9.0:
- Support for relative paths in backing files for disk images
- Async file I/O API
- New qcow2 disk image format
- Support of multiple VM snapshots
- Linux: specific host CDROM and floppy support
- SMM support
- Moved PCI init, MP table init and ACPI table init to Bochs BIOS
- Support for MIPS32 Release 2 instruction set (Thiemo Seufer)
- MIPS Malta system emulation (Aurelien Jarno, Stefan Weil)
- Darwin userspace emulation (Pierre d'Herbemont)
- m68k user support (Paul Brook)
- several x86 and x86_64 emulation fixes
- Mouse relative offset VNC extension (Anthony Liguori)
- PXE boot support (Anthony Liguori)
- '-daemonize' option (Anthony Liguori)
