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2013-03-26bitops: unroll while loop in find_next_bit()Peter Lieven1-1/+17
this patch adopts the loop unrolling idea of bitmap_is_zero() to speed up the skipping of large areas with zeros in find_next_bit(). this routine is extensively used to find dirty pages in live migration. testing only the find_next_bit performance on a zeroed bitfield the loop onrolling decreased executing time by approx. 50% on x86_64. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26buffer_is_zero: use vector optimizations if possiblePeter Lieven1-0/+5
performance gain on SSE2 is approx. 20-25%. altivec is not tested. performance for unsigned long arithmetic is unchanged. Signed-off-by: Peter Lieven <pl@kamp.de> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26cutils: add a function to find non-zero content in a bufferPeter Lieven2-0/+65
this adds buffer_find_nonzero_offset() which is a SSE2/Altivec optimized function that searches for non-zero content in a buffer. the function starts full unrolling only after the first few chunks have been checked one by one. analyzing real memory page data has revealed that non-zero pages are non-zero within the first 256-512 bits in most cases. as this function is also heavily used to check for zero memory pages this tweak has been made to avoid the high setup costs of the fully unrolled check for non-zero pages. due to the optimizations used in the function there are restrictions on buffer address and search length. the function can_use_buffer_find_nonzero_content() can be used to check if the function can be used safely. Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26move vector definitions to qemu-common.hPeter Lieven2-20/+21
vector optimizations will now be used at various places not just in is_dup_page() in arch_init.c Signed-off-by: Peter Lieven <pl@kamp.de> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26savevm: Fix bugs in the VMSTATE_VBUFFER_MULTIPLY definitionDavid Gibson1-2/+2
The VMSTATE_BUFFER_MULTIPLY macro is misnamed - it actually specifies a variably sized buffer with VMS_VBUFFER, so should be named VMSTATE_VBUFFER_MULTIPLY. This patch fixes this (the macro had no current users under either name). In addition, unlike the other VMSTATE_VBUFFER variants, this macro did not specify VMS_POINTER. This patch fixes this bug as well. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26savevm: Add VMSTATE_STRUCT_VARRAY_POINTER_UINT32David Gibson1-0/+10
Currently the savevm code contains a VMSTATE_STRUCT_VARRAY_POINTER_INT32 helper (a variably sized array with the number of elements in an int32_t), but not VMSTATE_STRUCT_VARRAY_POINTER_UINT32 (... with the number of elements in a uint32_t). This patch (trivially) fixes the deficiency. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26savevm: Add VMSTATE_FLOAT64 helpersDavid Gibson2-0/+38
The current savevm code includes VMSTATE helpers for a number of commonly used data types, but not for the float64 type used by the internal floating point emulation code. This patch fixes the deficiency. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26savevm: Add VMSTATE_UINTTL_EQUAL helperDavid Gibson2-2/+11
This adds an _EQUAL VMSTATE helper for target_ulongs, defined in terms of VMSTATE_UINT32_EQUAL or VMSTATE_UINT64_EQUAL as appropriate. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26savevm: Add VMSTATE_UINT64_EQUAL helpersDavid Gibson2-0/+28
The savevm code already includes a number of *_EQUAL helpers which act as sanity checks verifying that the configuration of the saved state matches that of the machine we're loading into to work. Variants already exist for 8 bit 16 bit and 32 bit integers, but not 64 bit integers. This patch fills that hole, adding a UINT64 version. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26migration: Improve QMP documentationJuan Quintela1-22/+32
Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-25Merge remote-tracking branch 'stefanha/net' into stagingAnthony Liguori21-17/+5198
# By Dmitry Fleytman (5) and others # Via Stefan Hajnoczi * stefanha/net: net: increase buffer size to accommodate Jumbo frame pkts VMXNET3 device implementation Packet abstraction for VMWARE network devices Common definitions for VMWARE devices net: iovec checksum calculator Checksum-related utility functions net: use socket_set_nodelay() for -netdev socket
2013-03-25Merge remote-tracking branch 'stefanha/block' into stagingAnthony Liguori2-3/+6
# By Liu Yuan (1) and Stefan Weil (1) # Via Stefan Hajnoczi * stefanha/block: block: Add options QDict to bdrv_file_open() prototypes (fix MinGW build) rbd: fix compile error
2013-03-25Merge remote-tracking branch 'kraxel/ipxe.3' into stagingAnthony Liguori8-2/+7
# By Gerd Hoffmann # Via Gerd Hoffmann * kraxel/ipxe.3: ipxe: update binaries ipxe: disable two second timeout
2013-03-25glib: add a compatibility interface for g_timeout_add_secondsAnthony Liguori2-1/+28
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-25gtk: Release modifier when graphic console loses keyboard focusJan Kiszka1-2/+51
This solves, e.g., sticky ALT when selecting a GTK menu, switching to a different window or selecting a different virtual console. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Message-id: 514F417A.6010908@web.de Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-25net: increase buffer size to accommodate Jumbo frame pktsScott Feldman5-10/+10
Socket buffer sizes were hard-coded to 4K for VDE and socket netdevs. Bump this up to 68K (ala tap netdev) to handle maximum GSO packet size (64k) plus plenty of room for the ethernet and virtio_net headers. Originally, ran into this limitation when using -netdev UDP sockets to connect VM-to-VM, where VM interface is configure with MTU=9000. (Using virtio_net NIC model). Test is simple: ping -M do -s 8500 <target>. This test will attempt to ping with unfragmented packet of given size. Without patch, size is limited to < 4K (minus protocol hdrs). With patch, ping test works with pkt size up to 9000 (again, minus protocol hdrs). v2: per Stefan, increase buf size to (4096+65536) as done in tap and apply to vde and socket netdevs. v1: increase buf size to 12K just for -netdev UDP sockets Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25VMXNET3 device implementationDmitry Fleytman5-0/+3224
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com> Signed-off-by: Yan Vugenfirer <yan@daynix.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25Packet abstraction for VMWARE network devicesDmitry Fleytman5-0/+1077
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com> Signed-off-by: Yan Vugenfirer <yan@daynix.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25Common definitions for VMWARE devicesDmitry Fleytman5-0/+823
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com> Signed-off-by: Yan Vugenfirer <yan@daynix.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25net: iovec checksum calculatorDmitry Fleytman2-0/+41
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com> Signed-off-by: Yan Vugenfirer <yan@daynix.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25Checksum-related utility functionsDmitry Fleytman2-7/+20
net_checksum_add_cont() checksum calculation for scattered data with odd chunk sizes net_raw_checksum() checksum calculation for a buffer Signed-off-by: Dmitry Fleytman <dmitry@daynix.com> Signed-off-by: Yan Vugenfirer <yan@daynix.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25net: use socket_set_nodelay() for -netdev socketStefan Hajnoczi1-0/+3
Reduce -netdev socket latency by disabling the Nagle algorithm on SOCK_STREAM sockets in net/socket.c. Since we are tunelling Ethernet over TCP we shouldn't artificially delay outgoing packets, let the guest decide packet scheduling. I already get sub-millisecond -netdev socket ping times on localhost, so there was no measurable difference in my testing. This won't hurt though and may improve remote socket performance. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
2013-03-25block: Add options QDict to bdrv_file_open() prototypes (fix MinGW build)Stefan Weil1-2/+4
The new parameter is unused yet. This part was missing in commit 787e4a8500020695eb391e2f1cc4767ee071d441. Cc: Kevin Wolf <kwolf@redhat.com> Cc: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25rbd: fix compile errorLiu Yuan1-1/+2
Commit 787e4a85 [block: Add options QDict to bdrv_file_open() prototypes] didn't update rbd.c accordingly. Cc: Kevin Wolf <kwolf@redhat.com> Cc: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Liu Yuan <tailai.ly@taobao.com> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25ipxe: update binariesGerd Hoffmann6-0/+0
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-25ipxe: disable two second timeoutGerd Hoffmann2-2/+7
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-24Remove device_tree.o from hw/moxie/Makefile.objs.Anthony Green1-1/+0
Here's a fix for the build problem identified by Aurelien Jarno here: http://lists.gnu.org/archive/html/qemu-devel/2013-03/msg04177.html Signed-off-by: Anthony Green <green@moxielogic.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-03-23tcg-optimize: Fold sub r,0,x to neg r,xRichard Henderson1-1/+33
Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-23target-i386: Don't modify env->eflags around cpu_dump_stateRichard Henderson2-4/+1
We can compute the value in cpu_dump_state anyway, and gratuitous modifications to eflags creates heisenbugs. Cc: Blue Swirl <blauwirbel@gmail.com> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-23target-i386: Fix flags computation for ADOXRichard Henderson1-1/+1
When starting from CC_OP_DYNAMIC, and issuing adox before adcx, a typo used the wrong value for the resulting CC_OP. Cc: Blue Swirl <blauwirbel@gmail.com> Reported-by: Torbjorn Granlund <tg@gmplib.org> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-23Add top level changes for moxieAnthony Green6-4/+21
Signed-off-by: Anthony Green <green@moxielogic.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-23Add sample moxie systemAnthony Green3-0/+181
Signed-off-by: Anthony Green <green@moxielogic.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-23Add moxie disassemblerAnthony Green4-0/+369
Signed-off-by: Anthony Green <green@moxielogic.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-23Add moxie target codeAnthony Green10-0/+1531
Signed-off-by: Anthony Green <green@moxielogic.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-03-23Merge branch 'for-upstream' of git://github.com/mwalle/qemuBlue Swirl15-57/+119
* 'for-upstream' of git://github.com/mwalle/qemu: configure: rename OpenGL feature to GLX configure: proper OpenGL/GLX probe target-lm32: use HELPER() macro target-lm32: flush tlb after clearing env target-lm32: remove dead code target-lm32: fix cmpgui and cmpgeui opcodes tests: tcg: lm32: add more test cases target-lm32: don't log cpu state in translation lm32_uart: fix receive buffering milkymist-uart: fix receive buffering lm32-dis: fix NULL pointer dereference target-lm32: fix debug memory access
2013-03-22Merge branch 'ppc-for-upstream' of git://github.com/agraf/qemuAurelien Jarno26-1304/+1873
* 'ppc-for-upstream' of git://github.com/agraf/qemu: (58 commits) target-ppc: Use NARROW_MODE macro for tlbie target-ppc: Use NARROW_MODE macro for addresses target-ppc: Use NARROW_MODE macro for comparisons target-ppc: Use NARROW_MODE macro for branches target-ppc: Fix add and subf carry generation in narrow mode target-ppc: Use QOM method dispatch for MMU fault handling target-ppc: Move ppc tlb_fill implementation into mmu_helper.c target-ppc: Split user only code out of mmu_helper.c mmu-hash64: Implement Virtual Page Class Key Protection mmu-hash*: Merge translate and fault handling functions mmu-hash*: Don't use full ppc_hash{32, 64}_translate() path for get_phys_page_debug() mmu-hash*: Correctly mask RPN from hash PTE mmu-hash*: Clean up real address calculation mmu-hash*: Clean up PTE flags update mmu-hash64: Factor SLB N bit into permissions bits mmu-hash*: Clean up permission checking mmu-hash32: Remove nx from context structure mmu-hash*: Don't update PTE flags when permission is denied mmu-hash32: Don't look up page tables on BAT permission error mmu-hash32: Cleanup BAT lookup ...
2013-03-22tcg: Fix occasional TCG broken problem when ldst optimization enabledYeongkyoon Lee1-2/+2
is_tcg_gen_code() checks the upper limit of TCG generated code range wrong, so that TCG could get broken occasionally only when CONFIG_QEMU_LDST_OPTIMIZATION enabled. The reason is code_gen_buffer_max_size does not cover the upper range up to (TCG_MAX_OP_SIZE * OPC_BUF_SIZE), thus code_gen_buffer_max_size should be modified to code_gen_buffer_size. CC: qemu-stable@nongnu.org Signed-off-by: Yeongkyoon Lee <yeongkyoon.lee@samsung.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-03-22Merge remote-tracking branch 'kwolf/for-anthony' into stagingAnthony Liguori24-113/+308
# By Kevin Wolf (12) and Peter Lieven (2) # Via Kevin Wolf * kwolf/for-anthony: nbd: Check against invalid option combinations nbd: Use default port if only host is specified block: Allow omitting the file name when using driver-specific options block: Make find_image_format safe with NULL filename block: Rename variable to avoid shadowing block: Introduce .bdrv_parse_filename callback nbd: Accept -drive options for the network connection nbd: Remove unused functions nbd: Keep hostname and port separate qemu-socket: Make socket_optslist public block: Pass bdrv_file_open() options to block drivers block: Add options QDict to bdrv_file_open() prototypes block: complete all IOs before resizing a device Revert "block: complete all IOs before .bdrv_truncate"
2013-03-22Merge remote-tracking branch 'stefanha/trivial-patches' into stagingAnthony Liguori25-52/+58
# By liguang (2) and others # Via Stefan Hajnoczi * stefanha/trivial-patches: qdev: remove redundant abort() gitignore: ignore more files Use proper term in TCG README serial: Fix debug format strings Fix typos and misspellings Advertise --libdir in configure --help output memory: fix a bug of detection of memory region collision MinGW: Replace setsockopt by qemu_setsocketopt
2013-03-22Merge remote-tracking branch 'cohuck/virtio-ccw-upstr' into stagingAnthony Liguori2-11/+2
# By Cornelia Huck # Via Cornelia Huck * cohuck/virtio-ccw-upstr: virtio-ccw, s390-virtio: Use generic virtio-blk macro. s390-virtio, virtio-ccw: Add config_wce for virtio-blk. virtio-ccw: Add missing blk chs properties.
2013-03-22nbd: Check against invalid option combinationsKevin Wolf1-0/+14
A file name may only specified if no host or socket path is specified. The latter two may not appear at the same time either. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22nbd: Use default port if only host is specifiedKevin Wolf1-9/+10
The URL method already takes care to apply the default port when none is specfied. Directly specifying driver-specific options required the port number until now. Allow leaving it out and apply the default. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22block: Allow omitting the file name when using driver-specific optionsKevin Wolf3-11/+51
After this patch, using -drive with an empty file name continues to open the file if driver-specific options are used. If no driver-specific options are specified, the semantics stay as it was: It defines a drive without an inserted medium. In order to achieve this, bdrv_open() must be made safe to work with a NULL filename parameter. The assumption that is made is that only block drivers which implement bdrv_parse_filename() support using driver specific options and could therefore work without a filename. These drivers must make sure to cope with NULL in their implementation of .bdrv_open() (this is only NBD for now). For all other drivers, the block layer code will make sure to error out before calling into their code - they can't possibly work without a filename. Now an NBD connection can be opened like this: qemu-system-x86_64 -drive file.driver=nbd,file.port=1234,file.host=::1 Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22block: Make find_image_format safe with NULL filenameKevin Wolf1-3/+10
In order to achieve this, the .bdrv_probe callbacks of all drivers must cope with this. The DMG driver is the only one that bases its decision on the filename and it needs to be changed. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22block: Rename variable to avoid shadowingKevin Wolf1-7/+9
bdrv_open() uses two different variables called options. Rename one of them to avoid confusion and to allow the outer one to be accessed everywhere. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22block: Introduce .bdrv_parse_filename callbackKevin Wolf3-16/+25
If a driver needs structured data and not just a string, it can provide a .bdrv_parse_filename callback now that parses the command line string into separate options. Keeping this separate from .bdrv_open_filename ensures that the preferred way of directly specifying the options always works as well if parsing the string works. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22nbd: Accept -drive options for the network connectionKevin Wolf1-52/+77
The existing parsers for the file name now parse everything into the bdrv_open() options QDict. Instead of using these parsers, you can now directly specify the options on the command line, like this: qemu-system-x86_64 -drive file=nbd:,file.port=1234,file.host=::1 Clearly the file=... part could use further improvement, but it's a start. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22nbd: Remove unused functionsKevin Wolf2-21/+0
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22nbd: Keep hostname and port separateKevin Wolf5-12/+58
The NBD block supports an URL syntax, for which a URL parser returns separate hostname and port fields. It also supports the traditional qemu syntax encoded in a filename. Until now, after parsing the URL to get each piece of information, a new string is built to be fed to socket functions. Instead of building a string in the URL case that is immediately parsed again, parse the string in both cases and use the QemuOpts interface to qemu-sockets.c. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-03-22qemu-socket: Make socket_optslist publicKevin Wolf2-12/+14
Allow other users to create the QemuOpts needed for inet_connect_opts(). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
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