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2013-07-04add a header file for atomic operationsPaolo Bonzini1-0/+352
We're already using them in several places, but __sync builtins are just too ugly to type, and do not provide seqcst load/store operations. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-27rdma: add documentationMichael R. Hines1-0/+415
docs/rdma.txt contains full documentation, wiki links, github url and contact information. Reviewed-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Chegu Vinod <chegu_vinod@hp.com> Tested-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Michael R. Hines <mrhines@us.ibm.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-06-14build: do not use TARGET_ARCHPaolo Bonzini1-1/+1
TARGET_ARCH is generally wrong to use, there are better variables provided in config-target.mak. The right one is usually TARGET_NAME (previously TARGET_ARCH2), but for bsd-user we can also use TARGET_ABI_DIR for consistency with linux-user. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1370349928-20419-4-git-send-email-pbonzini@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-01docs: Fix typo and update file in migrationLei Li1-8/+9
This patch fix some typo and update the file that already moved. Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-05-12docs: mention AddressSpaces in docs/memory.txtPaolo Bonzini1-4/+7
Reported-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-05-03trace: document ftrace backendEiichi Tsukata1-0/+16
Add documentation of ftrace backend. Signed-off-by: Eiichi Tsukata <eiichi.tsukata.xh@hitachi.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-05-01acpi_piix4: Add infrastructure to send CPU hot-plug GPE to guestIgor Mammedov1-0/+22
* introduce processor status bitmask visible to guest at 0xaf00 addr, where ACPI asl code expects it * set bit corresponding to APIC ID in processor status bitmask on receiving CPU hot-plug notification * trigger CPU hot-plug SCI, to notify guest about CPU hot-plug event Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-04-30pvpanic: add document of pvpanicHu Tao1-0/+39
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com> Reviewed-by: Markus Armbruster <armbru@redhat.com> Message-id: a5db4ce406647e8f4663b639eae62d880531df8b.1366945969.git.hutao@cn.fujitsu.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-29doc: document the Pseudo-encoding of LED stateLei Li1-0/+50
Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com> Reviewed-by: Anthony Liguori <aliguori@us.ibm.com> Message-id: 1366867752-11578-5-git-send-email-lilei@linux.vnet.ibm.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-22Merge remote-tracking branch 'bonzini/scsi-next' into stagingAnthony Liguori1-0/+92
# By Paolo Bonzini (5) and others # Via Paolo Bonzini * bonzini/scsi-next: vhost-scsi-s390: new device supporting the tcm_vhost Linux kernel module vhost-scsi-ccw: new device supporting the tcm_vhost Linux kernel module vhost-scsi-pci: new device supporting the tcm_vhost Linux kernel module vhost-scsi: new device supporting the tcm_vhost Linux kernel module virtio: simplify Makefile conditionals virtio-scsi: create VirtIOSCSICommon vhost: Add vhost_commit callback for SeaBIOS ROM region re-mapping scsi: VMWare PVSCSI paravirtual device implementation scsi: avoid assertion failure on VERIFY command Message-id: 1366381460-6041-1-git-send-email-pbonzini@redhat.com Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-19scsi: VMWare PVSCSI paravirtual device implementationDmitry Fleytman1-0/+92
Signed-off-by: Dmitry Fleytman <dmitry@daynix.com> Signed-off-by: Yan Vugenfirer <yan@daynix.com> [ Rename files to vmw_pvscsi, fix setting of hostStatus in pvscsi_request_cancelled - Paolo ] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-16pci: add pci test deviceMichael S. Tsirkin1-0/+26
This device is used for kvm unit tests, currently it supports testing performance of ioeventfd. Using updated kvm unittest, here's an example output: mmio-no-eventfd:pci-mem 8796 mmio-wildcard-eventfd:pci-mem 3609 mmio-datamatch-eventfd:pci-mem 3685 portio-no-eventfd:pci-io 5287 portio-wildcard-eventfd:pci-io 1762 portio-datamatch-eventfd:pci-io 1777 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-04-12Typo, spelling and grammatical fixesPeter Maydell2-6/+6
Minor fixes to documentation and code comments. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-03usb: update docs for bus name changeGerd Hoffmann1-10/+10
At some point the default usb bus name changed from 'usb.0' to 'usb-bus.0' (probably as part of the qom conversion). Update the usb documentation accordingly. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-03-28trace: Provide a detailed event control interfaceLluís Vilanova1-26/+18
This interface decouples event obtaining from interaction. Events can be obtained through three different methods: * identifier * name * simple wildcard pattern Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-22Fix typos and misspellingsPeter Maydell1-2/+2
Fix various typos and misspellings. The bulk of these were found with codespell. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-11migration: move rate limiting to QEMUFilePaolo Bonzini1-19/+1
Rate limiting is now simply a byte counter; client call qemu_file_rate_limit() manually to determine if they have to exit. So it is possible and simple to move the functionality to QEMUFile. This makes the remaining functionality of s->file redundant; in the next patch we can remove it and write directly to s->migration_file. Reviewed-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-02-05trace: Fix location of simpletrace.py in docsMarkus Armbruster1-2/+2
Missed when commit 4c3b5a48 moved it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-01-25docs: document virtio-balloon statsLuiz Capitulino1-0/+104
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-01-22usb: add usb-bot device (scsi bulk-only transport).Gerd Hoffmann1-1/+10
Basically the same as usb-storage, but without automatic scsi device setup. Also features support for up to 16 LUNs. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-01-14Merge remote-tracking branch 'mst/tags/for_anthony' into stagingAnthony Liguori1-0/+50
pci,virtio This further optimizes MSIX handling in virtio-pci. Also included is pci cleanup by Paolo, and pci device assignment fix by Alex. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> * mst/tags/for_anthony: pci-assign: Enable MSIX on device to match guest pci: use constants for devices under the 1B36 device ID, document them ivshmem: use symbolic constant for PCI ID, add to pci-ids.txt virtio-9p: use symbolic constant, add to pci-ids.txt reorganize pci-ids.txt docs: move pci-ids.txt to docs/specs/ vhost: backend masking support vhost: set started flag while start is in progress virtio-net: set/clear vhost_started in reverse order virtio: backend virtqueue notifier masking virtio-pci: cache msix messages kvm: add stub for update msi route msix: add api to access msix message virtio: don't waste irqfds on control vqs
2013-01-11q35: document chipset devicesGerd Hoffmann1-0/+129
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-01-09pci: use constants for devices under the 1B36 device ID, document themPaolo Bonzini1-0/+15
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-08ivshmem: use symbolic constant for PCI ID, add to pci-ids.txtPaolo Bonzini1-0/+2
Due to disagreement on a name that is generic enough for hw/pci/pci.h, the symbolic constants are placed in the .c files. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-08virtio-9p: use symbolic constant, add to pci-ids.txtPaolo Bonzini1-0/+1
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-08reorganize pci-ids.txtPaolo Bonzini1-13/+14
Some devices were missing, and we're using two PCI vendor ids. This patch only adds devices that are already documented in hw/pci/pci.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-01-08docs: move pci-ids.txt to docs/specs/Paolo Bonzini1-0/+31
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-17docs: add spice-port-fqdn.txtMarc-André Lureau1-0/+19
Start a simple org.qemu.* registry of well known name. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-19Merge remote-tracking branch 'stefanha/tracing' into stagingAnthony Liguori1-9/+4
* stefanha/tracing: trace: Remove "info trace" from documents trace: document '-' syntax for disabling events trace: allow disabling events in events file Avoid all systemtap reserved words Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-16trace: Remove "info trace" from documentsLiming Wang1-9/+0
commit 88affa1c monitor: remove unused do_info_trace has removed "info trace" function from monitor, so remove it from documents. Signed-off-by: Liming Wang <walimisdev@gmail.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-11-16trace: document '-' syntax for disabling eventsStefan Hajnoczi1-0/+4
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-11-16vga: fix bochs alignment issueGerd Hoffmann1-1/+2
The bochs dispi interface traditionally uses port 0x1ce as 16bit index register and port 0x1cf as 16bit data register. The later is unaligned, and probably for that reason the the data register was moved to 0x1d0 for non-x86 archs. This patch makes the data register available at 0x1d0 on x86 too. The old x86 location is kept for compatibility reasons, so both 0x1cf and 0x1d0 can be used as data register on x86. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-10-22serial: add pci-serial documentationGerd Hoffmann1-0/+34
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-22serial: add windows inf file for the pci card to docsGerd Hoffmann1-0/+109
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-10-20vga: add specs for standard vgaGerd Hoffmann1-0/+64
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-09-14Spelling fixes in comments and documentationStefan Weil2-3/+3
These wrong spellings were detected by codespell: * successully -> successfully * alot -> a lot * wanna -> want to * infomation -> information * occured -> occurred ["also is" -> "is also" and "ressources" -> "resources" suggested by Peter Maydell <peter.maydell@linaro.org>] Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-08-15docs: Fix spelling (propery -> property)Stefan Weil1-1/+1
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-08-13Merge remote-tracking branch 'qmp/queue/qmp' into stagingAnthony Liguori1-20/+27
* qmp/queue/qmp: (48 commits) target-ppc: add implementation of query-cpu-definitions (v2) target-i386: add implementation of query-cpu-definitions (v2) qapi: add query-cpu-definitions command (v2) compiler: add macro for GCC weak symbols qapi: add query-machines command qapi: mark QOM commands stable qmp: introduce device-list-properties command qmp: add SUSPEND_DISK event qmp: qmp-events.txt: add missing doc for the SUSPEND event qmp: qmp-events.txt: put events in alphabetical order qmp: emit the WAKEUP event when the guest is put to run qmp: don't emit the RESET event on wakeup from S3 scripts: qapi-commands.py: qmp-commands.h: include qdict.h docs: writing-qmp-commands.txt: update error section error, qerror: drop QDict member qerror: drop qerror_table and qerror_format() error, qerror: pass desc string to error calls error: drop error_get_qobject()/error_set_qobject() qemu-ga: switch to the new error format on the wire qmp: switch to the new error format on the wire ...
2012-08-13docs: writing-qmp-commands.txt: update error sectionLuiz Capitulino1-20/+27
Add information about the new error format and improve the text a bit. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2012-08-08Add XBZRLE documentationOrit Wasserman1-0/+128
Signed-off-by: Orit Wasserman <owasserm@redhat.com> Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2012-08-06docs: add lazy refcounts bit to qcow2 specificationStefan Hajnoczi1-1/+6
The lazy refcounts bit indicates that this image can take advantage of the dirty bit and that refcount updates can be postponed. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-08-06docs: add dirty bit to qcow2 specificationStefan Hajnoczi1-1/+6
The dirty bit will make it possible to perform lazy refcount updates, where the image file is not kept consistent all the time. Upon opening a dirty image file, it is necessary to perform a consistency check and repair any incorrect refcounts. Therefore the dirty bit must be an incompatible feature bit. We don't want old programs accessing a file with stale refcounts. Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-07-23Merge remote-tracking branch 'stefanha/net' into stagingAnthony Liguori1-0/+2
* stefanha/net: remove unused QemuOpts parameter from net init functions convert net_init_bridge() to NetClientOptions convert net_init_tap() to NetClientOptions convert net_init_vde() to NetClientOptions convert net_init_socket() to NetClientOptions convert net_init_slirp() to NetClientOptions convert net_init_dump() to NetClientOptions convert net_init_nic() to NetClientOptions convert net_client_init() to OptsVisitor hw, net: "net_client_type" -> "NetClientOptionsKind" (qapi-generated) qapi schema: add Netdev types qapi schema: remove trailing whitespace qapi: introduce OptsVisitor expose QemuOpt and QemuOpts struct definitions to interested parties qapi: introduce "size" type qapi: generate C types for fixed-width integers qapi: add test case for deallocating traversal of incomplete structure qapi: fix error propagation MAINTAINERS: Replace net maintainer Mark McLoughlin with Stefan Hajnoczi
2012-07-23qapi: fix error propagationPaolo Bonzini1-0/+2
Don't overwrite / leak previously set errors. Make traversal cope with missing mandatory sub-structs. Don't try to end a container that could not be started. v1->v2: - unchanged v2->v3: - instead of examining, assert that we never overwrite errors with error_set() - allow visitors to set a NULL struct pointer successfully, so traversal of incomplete objects can continue - check for a NULL "obj" before accessing "(*obj)->has_XXX" (this is not a typo, "obj != NULL" implies "*obj != NULL" here) - fix start_struct / end_struct balance for unions as well Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-07-21Fix some more Qemus in documentation and help textStefan Weil1-1/+1
Hopefully they will be eliminated one day. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-07-12usb: add usb attached scsi emulationGerd Hoffmann1-0/+38
$subject says all. First cut. It's a pure UAS (usb attached scsi) emulation, without BOT (bulk-only transport) compatibility. If your guest can't handle it use usb-storage instead. The emulation works like any other scsi hba emulation (eps, lsi, virtio, megasas, ...). It provides just the HBA where you can attach scsi devices as you like using '-device'. A single scsi target with up to 256 luns is supported. For now only usb 2.0 transport is supported. This will change in the future though as I plan to use this as playground when codeing up & testing usb 3.0 transport and streams support in the qemu usb core and the xhci emulation. No migration support yet. I'm planning to add usb 3.0 support first as this probably requires saving additional state. Special thanks go to Paolo for bringing the qemu scsi emulation into shape, so this can be added nicely without having to touch a single line of scsi code. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-06-24spapr: Add "memop" hypercallBenjamin Herrenschmidt1-0/+78
This adds a qemu-specific hypervisor call to the pseries machine which allows to do what amounts to memmove, memcpy and xor over regions of physical memory such as the framebuffer. This is the simplest way to get usable framebuffer speed from SLOF since the framebuffer isn't mapped in the VRMA and so would otherwise require an hcall per 8 bytes access. The performance is still not great but usable, and can be improved with a more complex implementation of the hcall itself if needed. This also adds some documentation for the qemu-specific hypercalls that we add to PAPR along with a new qemu,hypertas-functions property that mirrors ibm,hypertas-functions and provides some discoverability for the new calls. Note: I chose note to advertise H_RTAS to the guest via that mechanism. This is done on purpose, the guest uses the normal RTAS interfaces provided by qemu (including SLOF) which internally calls H_RTAS. We might in the future implement part (or even all) of RTAS inside the guest like IBM's firmware does and replace H_RTAS with some finer grained set of private hypercalls. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Alexander Graf <agraf@suse.de>
2012-05-30xhci: add usage info to docsGerd Hoffmann1-0/+15
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-02docs: fix one issue in qcow2 specsZhi Yong Wu1-1/+1
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-20Specification for qcow2 version 3Kevin Wolf1-23/+99
This updates the qcow2 specification to cover version 3. It contains the following changes: - Added compatible/incompatible/auto-clear feature bits plus an optional feature name table to allow useful error messages even if an older version doesn't know some feature at all. - Configurable refcount width. If you don't want to use internal snapshots, make refcounts one bit and save cache space and I/O. - Zero cluster flags. This allows discard even with a backing file that doesn't contain zeros. It is also useful for copy-on-read/image streaming, as you'll want to keep sparseness without accessing the remote image for an unallocated cluster all the time. - Fixed internal snapshot metadata to use 64 bit VM state size. You can't save a snapshot of a VM with >= 4 GB RAM today. - Extended internal snapshot metadata to contain the disk size, so that resizing images that have snapshots can be allowed in the future. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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