QEMU v0.12.4 - 模擬器

http://wiki.qemu.org/Main_Page

QEMU v0.12.4 is released. QEMU is a generic and open source machine emulator
and virtualizer.When used as a machine emulator, QEMU can run OSes and
programs made for one machine (e.g. an ARM board) on a different machine
(e.g. your own PC). By using dynamic translation, it achieves very good
performances.When used as a virtualizer, QEMU achieves near native
performances by executing the guest code directly on the host CPU. A host
driver called the QEMU accelerator (also known as KQEMU) is needed in this
case. The virtualizer mode requires that both the host and guest machine use
x86 compatible processors.

QEMU v0.12.4 changelog:
- 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)


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