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2015-02-16rcu: add g_free_rcuPaolo Bonzini
This simplifies calling g_free from an RCU callback. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-16docs: clarify memory region lifecyclePaolo Bonzini
Now that objects actually obey the rules, document them. Reviewed-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-02rcu: add call_rcuPaolo Bonzini
Asynchronous callbacks provided by call_rcu are particularly important for QEMU, because the BQL makes it hard to use synchronize_rcu. In addition, the current RCU implementation is not particularly friendly to multiple concurrent synchronize_rcu callers, making call_rcu even more important. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-02-02rcu: add rcu libraryPaolo Bonzini
This includes a (mangled) copy of the liburcu code. The main changes are: 1) removing dependencies on many other header files in liburcu; 2) removing for simplicity the tentative busy waiting in synchronize_rcu, which has limited performance effects; 3) replacing futexes in synchronize_rcu with QemuEvents for Win32 portability. The API is the same as liburcu, so it should be possible in the future to require liburcu on POSIX systems for example and use our copy only on Windows. Among the various versions available I chose urcu-mb, which is the least invasive implementation even though it does not have the fastest rcu_read_{lock,unlock} implementation. The urcu flavor can be changed later, after benchmarking. Reviewed-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-26hw: misc, add educational driverJiri Slaby
I am using qemu for teaching the Linux kernel at our university. I wrote a simple PCI device that can answer to writes/reads, generate interrupts and perform DMA. As I am dragging it locally over 2 years, I am sending it to you now. Signed-off-by: Jiri Slaby <jslaby@suse.cz> [Fix 32-bit compilation. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-01-22vnc: update docs/multiseat.txtGerd Hoffmann
vnc joins the party ;) Also some s/head/seat/ to clarify. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-01-15xbzrle: optimize XBZRLE to decrease the cache missesChenLiang
Avoid hot pages being replaced by others to remarkably decrease cache misses Sample results with the test program which quote from xbzrle.txt ran in vm:(migrate bandwidth:1GE and xbzrle cache size 8MB) the test program: include <stdlib.h> include <stdio.h> int main() { char *buf = (char *) calloc(4096, 4096); while (1) { int i; for (i = 0; i < 4096 * 4; i++) { buf[i * 4096 / 4]++; } printf("."); } } before this patch: virsh qemu-monitor-command test_vm '{"execute": "query-migrate"}' {"return":{"expected-downtime":1020,"xbzrle-cache":{"bytes":1108284, "cache-size":8388608,"cache-miss-rate":0.987013,"pages":18297,"overflow":8, "cache-miss":1228737},"status":"active","setup-time":10,"total-time":52398, "ram":{"total":12466991104,"remaining":1695744,"mbps":935.559472, "transferred":5780760580,"dirty-sync-counter":271,"duplicate":2878530, "dirty-pages-rate":29130,"skipped":0,"normal-bytes":5748592640, "normal":1403465}},"id":"libvirt-706"} 18k pages sent compressed in 52 seconds. cache-miss-rate is 98.7%, totally miss. after optimizing: virsh qemu-monitor-command test_vm '{"execute": "query-migrate"}' {"return":{"expected-downtime":2054,"xbzrle-cache":{"bytes":5066763, "cache-size":8388608,"cache-miss-rate":0.485924,"pages":194823,"overflow":0, "cache-miss":210653},"status":"active","setup-time":11,"total-time":18729, "ram":{"total":12466991104,"remaining":3895296,"mbps":937.663549, "transferred":1615042219,"dirty-sync-counter":98,"duplicate":2869840, "dirty-pages-rate":58781,"skipped":0,"normal-bytes":1588404224, "normal":387794}},"id":"libvirt-266"} 194k pages sent compressed in 18 seconds. The value of cache-miss-rate decrease to 48.59%. Signed-off-by: ChenLiang <chenliang88@huawei.com> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Amit Shah <amit.shah@redhat.com>
2015-01-03pci: move REDHAT_SDHCI device ID to make room for RockerScott Feldman
The rocker device uses same PCI device ID as sdhci. Since rocker device driver has already been accepted into Linux 3.18, and REDHAT_SDHCI device ID isn't used by any drivers, it's safe to move REDHAT_SDHCI device ID, avoiding conflict with rocker. Signed-off-by: Scott Feldman <sfeldma@gmail.com> Signed-off-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-15sdhci: Define SDHCI PCI idsKevin O'Connor
Signed-off-by: Kevin O'Connor <kevin@koconnor.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-11-18Tracing docs fix configure option and descriptionDr. David Alan Gilbert
Fix the example trace configure option. Update the text to say that multiple backends are allowed and what happens when multiple backends are enabled. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Message-id: 1412691161-31785-1-git-send-email-dgilbert@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-10-30Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
virtio-scsi fixes, the first part of dynamic sysbus devices, MAINTAINERS updates, and AVX512 support. # gpg: Signature made Mon 27 Oct 2014 15:12:13 GMT using RSA key ID 78C7AE83 # gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" # gpg: aka "Paolo Bonzini <pbonzini@redhat.com>" # gpg: WARNING: This key is not certified with sufficiently trusted signatures! # gpg: It is not certain that the signature belongs to the owner. # Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4 E2F7 7E15 100C CD36 69B1 # Subkey fingerprint: F133 3857 4B66 2389 866C 7682 BFFB D25F 78C7 AE83 * remotes/bonzini/tags/for-upstream: (28 commits) aio / timers: De-document -clock hw/scsi/virtio-scsi.c: fix the "type" use error in virtio_scsi_handle_ctrl virtio-scsi: sense in virtio_scsi_command_complete target-i386: add Intel AVX-512 support get_maintainer.pl: restrict cases where it falls back to --git get_maintainer.pl: move git loop under "if ($email) {" qtest: fix qtest log fd should be initialized before qtest chardev MAINTAINERS: avoid M entries that point to mailing lists MAINTAINERS: add some tests directories MAINTAINERS: Add more TCG files MAINTAINERS: add myself for X86 MAINTAINERS: add Samuel Thibault as usb-serial.c and baum.c maintainer MAINTAINERS: grab more files from Anthony's pile target-i386: warns users when CPU threads>1 for non-Intel CPUs sysbus: Use TYPE_DEVICE GPIO functionality qdev: gpio: Define qdev_pass_gpios() qdev: gpio: Remove qdev_init_gpio_out x1 restriction qdev: gpio: delete NamedGPIOList::out irq: Remove qemu_irq_intercept_out qtest/irq: Rework IRQ interception ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-27aio / timers: De-document -clockMarkus Armbruster
Commit 6d32717 "aio / timers: Remove alarm timers" has issues: 1. It silently ignores -clock for backward compatibility. Incompatible change: -clock help no longer terminates the program. Tolerable. 2. Failed to update option documentation. In particular, -help still advises users to try -clock help for available timers. Drop all documentation on -clock. 3. The 'query-alarm-clock' example in docs/writing-commands.txt no longer works, and needs to be redone. Can't do that right now, so I just stick in a FIXME. Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23docs/qcow2: Limit refcount_order to [0, 6]Max Reitz
Specify the upper limit of refcount_order to be 6 (that is, refcount_bits = 64). Any larger value does not make much sense when all offsets, sizes, cluster counts etc. "only" have a width of 64 bit as well, and very large values would be very difficult to support. Therefore, just cap it at the largest reasonable value. Suggested-by: Eric Blake <eblake@redhat.com> Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-23docs/qcow2: Correct refcount_block_entriesMax Reitz
A refblock entry may have a different size than 16 bits, it may even be smaller than a byte. Correct the refcount_block_entries calculation accordingly. Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20block: Rename BlockDriverCompletionFunc to BlockCompletionFuncMarkus Armbruster
I'll use it with block backends shortly, and the name is going to fit badly there. It's a block layer thing anyway, not just a block driver thing. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20block: Rename BlockDriverAIOCB* to BlockAIOCB*Markus Armbruster
I'll use BlockDriverAIOCB with block backends shortly, and the name is going to fit badly there. It's a block layer thing anyway, not just a block driver thing. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-15vga-pci: add qext region to mmioGerd Hoffmann
Add a qemu extented register range to the standard vga mmio bar. Right nowe there are two registers: One readonly register returning the size of the region (so we can easily add more registers there if needed) and one endian control register, so guests (especially ppc) can flip the framebuffer endianness as they need it. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
2014-09-29Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell
Block patches # gpg: Signature made Fri 26 Sep 2014 19:57:52 BST using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: qemu-iotests: Fail test if explicit test case number is unknown block: Validate node-name vpc: fix beX_to_cpu() and cpu_to_beX() confusion docs: add blkdebug block driver documentation block: Catch simultaneous usage of options and their aliases block: Specify -drive legacy option aliases in array block: Improve message for device name clashing with node name qemu-nbd: Destroy the BlockDriverState properly block: Keep DriveInfo alive until BlockDriverState dies blockdev: Disentangle BlockDriverState and DriveInfo creation blkdebug: show an error for invalid event names Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-26qapi: Update docs given recent event, spacing fixesEric Blake
Commit 21cd70d added event support but didn't document what the generated code looks like. Commit 05dfb26 removed some unwanted spaces in the generated code, but didn't reflect those changes into the documentation. Finally, the docs start with a big disclaimer about QMP not using QAPI yet, which feels rather stale. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-09-26trace: docs: add trace file descriptionChen Fan
When user used the trace print command from docs/tracing.txt: ./scripts/simpletrace.py trace-events trace-* the user maybe be misled by the "trace-*", because if user directly copy the comand line to run, there alway print the bored message: "usage: ./scripts/simpletrace.py <trace-events> <trace-file>" then we should describe that the "trace-*" represented. Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-25docs: add blkdebug block driver documentationStefan Hajnoczi
The blkdebug block driver is undocumented. Documenting it is worthwhile since it offers powerful error injection features that are used by qemu-iotests test cases. This document will make it easier for people to learn about and use blkdebug. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-09-23Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into ↵Peter Maydell
staging # gpg: Signature made Mon 22 Sep 2014 12:41:59 BST using RSA key ID 81AB73C8 # gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" # gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>" * remotes/stefanha/tags/block-pull-request: (59 commits) block: Always compile virtio-blk dataplane vring: Better error handling if num is too large virtio: Import virtio_vring.h async: aio_context_new(): Handle event_notifier_init failure block: vhdx - fix reading beyond pointer during image creation block: delete cow block driver block/archipelago: Fix typo in qemu_archipelago_truncate() ahci: Add test_identify case to ahci-test. ahci: Add test_hba_enable to ahci-test. ahci: Add test_hba_spec to ahci-test. ahci: properly shadow the TFD register ahci: add test_pci_enable to ahci-test. ahci: Add test_pci_spec to ahci-test. ahci: MSI capability should be at 0x80, not 0x50. ahci: Adding basic functionality qtest. layout: Add generators for refcount table and blocks fuzz: Add fuzzing functions for entries of refcount table and blocks docs: List all image elements currently supported by the fuzzer qapi/block-core: Add "new" qcow2 options qcow2: Add overlap-check.template option ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-09-22docs: List all image elements currently supported by the fuzzerMaria Kustova
Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Maria Kustova <maria.k@catit.be> Message-id: cb71485d0f55d1d8401eebaead8324eb78673060.1408450493.git.maria.k@catit.be Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-09-20rdma: Fix incorrect description in commentszhanghailiang
Since we have supported memory hotplug, VM's ram include pc.ram and hotplug-memory. Fix the confused description for rdma migration: pc.ram -> VM's ram Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-08-19Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell
SCSI changes that enable sending vendor-specific commands via virtio-scsi. Memory changes for QOMification and automatic tracking of MR lifetime. # gpg: Signature made Mon 18 Aug 2014 13:03:09 BST using RSA key ID 9B4D86F2 # gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>" # gpg: aka "Paolo Bonzini <bonzini@gnu.org>" * remotes/bonzini/tags/for-upstream: mtree: remove write-only field memory: Use canonical path component as the name memory: Use memory_region_name for name access memory: constify memory_region_name exec: Abstract away ref to memory region names loader: Abstract away ref to memory region names tpm_tis: remove instance_finalize callback memory: remove memory_region_destroy memory: convert memory_region_destroy to object_unparent ioport: split deletion and destruction nic: do not destroy memory regions in cleanup functions vga: do not dynamically allocate chain4_alias sysbus: remove unused function sysbus_del_io qom: object: move unparenting to the child property's release callback qom: object: delete properties before calling instance_finalize virtio-scsi: implement parse_cdb scsi-block, scsi-generic: implement parse_cdb scsi-block: extract scsi_block_is_passthrough scsi-bus: introduce parse_cdb in SCSIDeviceClass and SCSIBusInfo scsi-bus: prepare scsi_req_new for introduction of parse_cdb Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-08-18memory: convert memory_region_destroy to object_unparentPaolo Bonzini
Explicitly call object_unparent in the few places where we will re-create the memory region. If the memory region is simply being destroyed as part of device teardown, let QOM handle it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-08-15docs: Expand the list of supported image elements with L1/L2 tablesMaria Kustova
Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15docs: Specification for the image fuzzerMaria Kustova
'Overall fuzzer requirements' chapter contains the current product vision and features done and to be done. This chapter is still in progress. Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-08-15Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' ↵Peter Maydell
into staging Tracing pull request * remotes/stefanha/tags/tracing-pull-request: virtio-rng: add some trace events trace: add some tcg tracing support trace: teach lttng backend to use format strings trace: [tcg] Include TCG-tracing header on all targets trace: [tcg] Include event definitions in "trace.h" trace: [tcg] Generate TCG tracing routines trace: [tcg] Include TCG-tracing helpers trace: [tcg] Define TCG tracing helper routine wrappers trace: [tcg] Define TCG tracing helper routines trace: [tcg] Declare TCG tracing helper routines trace: [tcg] Add 'tcg' event property trace: [tcg] Argument type transformation machinery trace: [tcg] Argument type transformation rules trace: [tcg] Add documentation trace: install simpletrace SystemTap tapset simpletrace: add simpletrace.py --no-header option trace: add tracetool simpletrace_stap format trace: extract stap_escape() function for reuse Conflicts: Makefile.objs
2014-08-15docs/multiple-iothreads.txt: add documentation on IOThread programmingStefan Hajnoczi
This document explains how IOThreads and the main loop are related, especially how to write code that can run in an IOThread. Currently only virtio-blk-data-plane uses these techniques. The next obvious target is virtio-scsi; there has also been work on virtio-net. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2014-08-15docs: Make the recommendation for the backing file name position a requirementMaria Kustova
The current version of the qcow2 specification recommends to save the backing file name in the end of the first cluster. It follows that the backing file name can be saved somewhere in the image, but the first cluster, which contradicts the current QEMU implementation. The patch makes the backing file name required to be placed after the header extensions in the first image cluster. Signed-off-by: Maria Kustova <maria.k@catit.be> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-08-12trace: [tcg] Add documentationLluís Vilanova
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-07-24docs: document missing VSERPORT_CHANGE eventEric Blake
The VSERPORT_CHANGE event was added in e2ae6159. The patch for this event was prepared at a time when this file was gone, even though it got applied immediately after dfab4892 restored this file. Duplicate the documentation into this file, so that anyone using this file instead of qapi will not miss out on this new event. * docs/qmp/qmp-events.txt (VSERPORT_CHANGE): Add. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-07-24docs: document missing POWERDOWN eventEric Blake
The POWERDOWN event was first documented in 0aab9ec3. But since dfab4892 later restored this file to the state prior to qmp events, and we never documented it in the past, anyone using this file instead of qapi will miss out on this event. Tweak the existing wording of SHUTDOWN to match 84321831, and make the difference between the two events apparent. * docs/qmp/qmp-events.txt (POWERDOWN): Add. (SHUTDOWN): Tweak. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-07-24docs: document missing SPICE_MIGRATE_COMPLETED eventEric Blake
The SPICE_MIGRATE_COMPLETED event was first documented in 7cfadb6b. But since dfab4892 later restored this file to the state prior to qmp events, and we never documented it in the past, anyone using this file instead of qapi will miss out on this event. * docs/qmp/qmp-events.txt (SPICE_MIGRATE_COMPLETED): Add. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-07-24docs: split SPICE_* event docsEric Blake
For consistency with the rest of this file, every event should be listed in isolation. Compare how commit 7cfadb6b split SPICE_CONNECTED and SPICE_DISCONNECTED into separate qmp events. * docs/qmp/qmp-events.txt (SPICE_CONNECTED, SPICE_DISCONNECTED): Split. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-07-24docs: grammar fixes to qmp-eventsEric Blake
When converting to qmp events, commits 7cfadb6b and a6330785 fixed some grammar as part of moving text between files. But since dfab4892 later restored this file to the state prior to qmp events, we have to do it again. * docs/qmp/qmp-events.txt (RESET, SPICE_INITIALIZED): Tweak. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-07-09AioContext: speed up aio_notifyPaolo Bonzini
In many cases, the call to event_notifier_set in aio_notify is unnecessary. In particular, if we are executing aio_dispatch, or if aio_poll is not blocking, we know that we will soon get to the next loop iteration (if necessary); the thread that hosts the AioContext's event loop does not need any nudging. The patch includes a Promela formal model that shows that this really works and does not need any further complication such as generation counts. It needs a memory barrier though. The generation counts are not needed because any change to ctx->dispatching after the memory barrier is okay for aio_notify. If it changes from zero to one, it is the right thing to skip event_notifier_set. If it changes from one to zero, the event_notifier_set is unnecessary but harmless. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-07-01qapi: Change back sector-count to sectors-count in quorum QAPI events.Benoît Canet
fe069d9d had aligned code and documentation while dropping the s from the actual JSON output. Fix that. This also fix test/qemu-iotest/081 since the missing s was causing a permutation. Signed-off-by: Benoit Canet <benoit@irqsave.net> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-06-29vhost-user: typo fixupsMichael S. Tsirkin
Fix typo in field name. Strip two consequitive empty lines. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-29vhost-user: fix regions provied with VHOST_USER_SET_MEM_TABLE messageDamjan Marion
Old code was affected by memory gaps which resulted in buffer pointers pointing to address outside of the mapped regions. Here we are introducing following changes: - new function qemu_get_ram_block_host_ptr() returns host pointer to the ram block, it is needed to calculate offset of specific region in the host memory - new field mmap_offset is added to the VhostUserMemoryRegion. It contains offset where specific region starts in the mapped memory. As there is stil no wider adoption of vhost-user agreement was made that we will not bump version number due to this change - other fileds in VhostUserMemoryRegion struct are not changed, as they are all needed for usermode app implementation - region data is not taken from ram_list.blocks anymore, instead we use region data which is alredy calculated for use in vhost-net - Now multiple regions can have same FD and user applicaton can call mmap() multiple times with the same FD but with different offset (user needs to take care for offset page alignment) Signed-off-by: Damjan Marion <damarion@cisco.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Damjan Marion <damarion@cisco.com>
2014-06-29vhost-user: fix wrong ids in documentationDamjan Marion
Signed-off-by: Damjan Marion <damarion@cisco.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-06-27docs/qmp: Fix documentation of BLOCK_JOB_READY to match codeMarkus Armbruster
Signed-off-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-27qmp: add qmp-events.txt backLuiz Capitulino
The conversion of events to the QAPI, resulted in the removal of the docs/qmp/qmp-events.txt file. This was done to avoid having duplicated information between qmp-events.txt and qapi-event.json. However, qmp-events.txt contains examples and we're still not sure how to proper install QAPI docs in the host. To avoid harming users, it's better to re-add qmp-events.txt for now and deal with the duplication later. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2014-06-27qapi script: clean up in scriptsWenchao Xia
This patch improve docs and uses c_type(argentry, is_param=True) in script. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23qapi event: convert QUORUM eventsWenchao Xia
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23qapi event: convert GUEST_PANICKEDWenchao Xia
'monitor.h' is still included in target-s390x/kvm.c, since I have no good way to verify whether other code need it on my x86 host. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23qapi event: convert BALLOON_CHANGEWenchao Xia
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23qmp: convert ACPI_DEVICE_OST eventIgor Mammedov
... using new QAPI event infrastructure Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-06-23qapi event: convert SPICE eventsWenchao Xia
SPICE_INITIALIZED, SPICE_CONNECTED, SPICE_DISCONNECTED and SPICE_MIGRATE_COMPLETED are converted in one patch, since they use some common functions. inet_strfamily() is removed since no callers exist anymore. Note that there is no existing doc for SPICE_MIGRATE_COMPLETED in docs/qmp/qmp-events.txt before this patch. Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-24 10:54:00 +0000