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2012-09-28qmp: add block-job-pause and block-job-resumePaolo Bonzini
Add QMP commands matching the functionality. Paused jobs cannot be canceled without first resuming them. This ensures that I/O errors are never missed by management. However, an optional force argument can be specified to allow that. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: add support for job pause/resumePaolo Bonzini
Job pausing reuses the existing support for cancellable sleeps. A pause happens at the next sleeping point and lasts until the coroutine is re-entered explicitly. Cancellation was already doing a forced resume, so implement it explicitly in terms of resume. Paused jobs cannot be canceled without first resuming them. This ensures that I/O errors are never missed by management. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28qmp: add 'busy' member to BlockJobInfoPaolo Bonzini
Because pausing a job is asynchronous, we need to know whether it has completed. This is described by the "busy" field of BlockJob; copy it to BlockJobInfo. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: add block_job_queryPaolo Bonzini
Extract it out of the implementation of info block-jobs. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: move job APIs to separate filesPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: fix documentation of block_job_cancel_syncPaolo Bonzini
Do this in a separate commit before we move the functions to blockjob.h. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28qerror/block: introduce QERR_BLOCK_JOB_NOT_ACTIVEPaolo Bonzini
The DeviceNotActive text is not a particularly good match, add a separate text while keeping the same class. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28qemu-iotests: add initial tests for live block commitJeff Cody
Derived from the streaming test cases (030), this adds the following 9 tests: 1. For the following image chain, commit [mid] into [backing], and use qemu-io to verify [backing] has its original data, as well as the data from [mid] [backing] <-- [mid] <-- [test] 2. Verifies that 'block-commit' with the 'speed' parameter sets the speed parameter, as reported by 'query-block-jobs' 3. Verifies that a bogus 'device' parameter to 'block-commit' results in error 4-9: Appropriate error values returned for the following argument errors: * top == base * top is nonexistent * base is nonexistent * top == active layer (this is currently not supported) * top and base arguments are reversed * top argument is omitted Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28QAPI: add command for live block commit, 'block-commit'Jeff Cody
The command for live block commit is added, which has the following arguments: device: the block device to perform the commit on (mandatory) base: the base image to commit into; optional (if not specified, it is the underlying original image) top: the top image of the commit - all data from inside top down to base will be committed into base (mandatory for now; see note, below) speed: maximum speed, in bytes/sec Note: Eventually this command will support merging down the active layer, but that code is not yet complete. If the active layer is passed in as top, then an error will be returned. Once merging down the active layer is supported, the 'top' argument may become optional, and default to the active layer. The is done as a block job, so upon completion a BLOCK_JOB_COMPLETED will be emitted. Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: helper function, to find the base image of a chainJeff Cody
This is a simple helper function, that will return the base image of a given image chain. Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28blockdev: rename block_stream_cb to a generic block_job_cbJeff Cody
Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: add live block commit functionalityJeff Cody
This adds the live commit coroutine. This iteration focuses on the commit only below the active layer, and not the active layer itself. The behaviour is similar to block streaming; the sectors are walked through, and anything that exists above 'base' is committed back down into base. At the end, intermediate images are deleted, and the chain stitched together. Images are restored to their original open flags upon completion. Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: add support functions for live commit, to find and delete images.Jeff Cody
Add bdrv_find_overlay(), and bdrv_drop_intermediate(). bdrv_find_overlay(): given 'bs' and the active (topmost) BDS of an image chain, find the image that is the immediate top of 'bs' bdrv_drop_intermediate(): Given 3 BDS (active, top, base), drop images above base up to and including top, and set base to be the backing file of top's overlay node. E.g., this converts: bottom <- base <- intermediate <- top <- active to bottom <- base <- active Signed-off-by: Jeff Cody <jcody@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: Support GlusterFS as a QEMU block backend.Bharata B Rao
This patch adds gluster as the new block backend in QEMU. This gives QEMU the ability to boot VM images from gluster volumes. Its already possible to boot from VM images on gluster volumes using FUSE mount, but this patchset provides the ability to boot VM images from gluster volumes by by-passing the FUSE layer in gluster. This is made possible by using libgfapi routines to perform IO on gluster volumes directly. VM Image on gluster volume is specified like this: file=gluster[+transport]://[server[:port]]/volname/image[?socket=...] 'gluster' is the protocol. 'transport' specifies the transport type used to connect to gluster management daemon (glusterd). Valid transport types are tcp, unix and rdma. If a transport type isn't specified, then tcp type is assumed. 'server' specifies the server where the volume file specification for the given volume resides. This can be either hostname, ipv4 address or ipv6 address. ipv6 address needs to be within square brackets [ ]. If transport type is 'unix', then 'server' field should not be specifed. The 'socket' field needs to be populated with the path to unix domain socket. 'port' is the port number on which glusterd is listening. This is optional and if not specified, QEMU will send 0 which will make gluster to use the default port. If the transport type is unix, then 'port' should not be specified. 'volname' is the name of the gluster volume which contains the VM image. 'image' is the path to the actual VM image that resides on gluster volume. Examples: file=gluster://1.2.3.4/testvol/a.img file=gluster+tcp://1.2.3.4/testvol/a.img file=gluster+tcp://1.2.3.4:24007/testvol/dir/a.img file=gluster+tcp://[1:2:3:4:5:6:7:8]/testvol/dir/a.img file=gluster+tcp://[1:2:3:4:5:6:7:8]:24007/testvol/dir/a.img file=gluster+tcp://server.domain.com:24007/testvol/dir/a.img file=gluster+unix:///testvol/dir/a.img?socket=/tmp/glusterd.socket file=gluster+rdma://1.2.3.4:24007/testvol/a.img Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28configure: Add a config option for GlusterFS as block backendBharata B Rao
GlusterFS support in QEMU depends on libgfapi, libgfrpc and libgfxdr provided by GlusterFS. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28aio: Another fix to the walking_handlers logicPaolo Bonzini
The AIO dispatch loop will call QLIST_REMOVE and g_free even if there are other pending calls to qemu_aio_wait outside the current one. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28qemu: URI parsing libraryPaolo Bonzini
Add a new URI parsing library to QEMU. The code has been borrowed from libxml2 and libvirt. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28aio: Fix qemu_aio_wait() to maintain correct walking_handlers countPaolo Bonzini
Fix qemu_aio_wait() to ensure that registered aio handlers don't get deleted when they are still active. This is ensured by maintaning the right count of walking_handlers. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block: after creating a live snapshot, make old image read-onlyJeff Cody
Currently, after a live snapshot of a drive, the image that has been 'demoted' to be below the new active layer remains r/w. This patch reopens it read-only. Note that we do not check for error on the reopen(), because we will not abort the snapshots if the reopen fails. This patch depends on the bdrv_reopen() series. Signed-off-by: Jeff Cody <jcody@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-28block-migration: Flush requests in blk_mig_cleanupKevin Wolf
When cancelling block migration, all in-flight requests of the block migration must be completed before the data can be freed. This was visible as failing assertions and segfaults. Reported-by: Peter Lieven <pl@dlhnet.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-09-27Merge branch 'arm-devs.for-upstream' of ↵Aurelien Jarno
git://git.linaro.org/people/pmaydell/qemu-arm * 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm: Versatile Express: Add modelling of NOR flash Versatile Express: Fix NOR flash 0 address and remove flash alias hw/armv7m_nvic: Correctly register GIC region when setting up NVIC pl190: fix read of VECTADDR
2012-09-27target-s390x: Tidy cpu_dump_stateRichard Henderson
The blank lines inside the single dump make it difficult for the eye to pick out the block. Worse, with interior newlines, but no blank line following, the PSW line appears to belong to the next dump block. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-27target-s390x: Avoid double CPU_LOG_TB_CPURichard Henderson
This is already handled generically in cpu_exec. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-27target-s390x: Use CPU_LOG_INTRichard Henderson
Three places in the interrupt code did we not honor the mask. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-27target-unicore32: Call tcg_gen_debug_insn_startRichard Henderson
Acked-by: Guan Xuetao <gxt@mprc.pku.edu.cn> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-27target-s390x: Call tcg_gen_debug_insn_startRichard Henderson
Cc: Alexander Graf <agraf@suse.de> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-27target-m68k: Call tcg_gen_debug_insn_startRichard Henderson
Cc: Paul Brook <paul@codesourcery.com> Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-27Emit debug_insn for CPU_LOG_TB_OP_OPT as well.Richard Henderson
For all targets that currently call tcg_gen_debug_insn_start, add CPU_LOG_TB_OP_OPT to the condition that gates it. This is useful for comparing optimization dumps, when the pre-optimization dump is merely noise. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-27tci: Fix for AREG0 free modeStefan Weil
Support for helper functions with 5 arguments was missing in the code generator and in the interpreter. There is no need to pass the constant TCG_AREG0 from the code generator to the interpreter. Remove that code for the INDEX_op_qemu_st* opcodes. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26Versatile Express: Add modelling of NOR flashFrancesco Lavra
This patch adds modelling of the two NOR flash banks found on the Versatile Express motherboard. Tested with U-Boot running on an emulated Versatile Express, with either A9 or A15 CoreTile. Signed-off-by: Francesco Lavra <francescolavra.fl@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26Versatile Express: Fix NOR flash 0 address and remove flash aliasFrancesco Lavra
In the A series memory map (implemented in the Cortex A15 CoreTile), the first NOR flash bank (flash 0) is mapped to address 0x08000000, while address 0x00000000 can be configured as alias to either the first or the second flash bank. This patch fixes the definition of flash 0 address, and for simplicity removes the alias definition. Signed-off-by: Francesco Lavra <francescolavra.fl@gmail.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26hw/armv7m_nvic: Correctly register GIC region when setting up NVICMeador Inge
When setting up the NVIC memory regions the memory range 0x100..0xcff is aliased to an IO memory region that belongs to the ARM GIC. This aliased region should be added to the NVIC memory container, but the actual GIC IO memory region was being added instead. This mixup was causing the wrong IO memory access functions to be called when accessing parts of the NVIC memory. Signed-off-by: Meador Inge <meadori@codesourcery.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-26pl190: fix read of VECTADDRBrendan Fennell
Reading VECTADDR was causing us to set the current priority to the wrong value, the most obvious effect of which was that we would return the vector for the wrong interrupt as the result of the read. Signed-off-by: Brendan Fennell <bfennell@skynet.ie> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-09-25add a boot parameter to set reboot timeoutAmos Kong
Added an option to let qemu transfer a configuration file to bios, "etc/boot-fail-wait", which could be specified by command -boot reboot-timeout=T T have a max value of 0xffff, unit is ms. With this option, guest will wait for a given time if not find bootabled device, then reboot. If reboot-timeout is '-1', guest will not reboot, qemu passes '-1' to bios by default. This feature need the new seabios's support. Seabios pulls the value from the fwcfg "file" interface, this interface is used because SeaBIOS needs a reliable way of obtaining a name, value size, and value. It in no way requires that there be a real file on the user's host machine. Signed-off-by: Amos Kong <akong@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Clear handler only for valid fdOrit Wasserman
Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Fix address handling in inet_nonblocking_connectOrit Wasserman
getaddrinfo can give us a list of addresses, but we only try to connect to the first one. If that fails we never proceed to the next one. This is common on desktop setups that often have ipv6 configured but not actually working. To fix this make inet_connect_nonblocking retry connection with a different address. callers on inet_nonblocking_connect register a callback function that will be called when connect opertion completes, in case of failure the fd will have a negative value Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Separate inet_connect into inet_connect (blocking) and inet_nonblocking_connectOrit Wasserman
No need to add non blocking parameters to the blocking inet_connect add block parameter for inet_connect_opts instead of using QemuOpt "block". Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Refactor inet_connect_opts functionMichael S. Tsirkin
refactor address resolution code to fix nonblocking connect remove getnameinfo call Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Amos Kong <akong@redhat.com> Signed-off-by: Orit Wasserman <owasserm@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25configure: Allow builds without any system or user emulationStefan Weil
The old code aborted configure when no emulation target was selected. Even after removing the 'exit 1', it tried to read from STDIN when QEMU was configured with configure' '--disable-user' '--disable-system' This is fixed here. Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25ivshmem: add 64bit optionGerd Hoffmann
This patch adds a "use64" property which will make the ivshmem driver register a 64bit memory bar when set, so you have something to play with when testing 64bit pci bits. It also allows to have quite big shared memory regions, like this: [root@fedora ~]# lspci -vs1:1 01:01.0 RAM memory: Red Hat, Inc Device 1110 Subsystem: Red Hat, Inc Device 1100 Physical Slot: 1-1 Flags: fast devsel Memory at fd400000 (32-bit, non-prefetchable) [disabled] [size=256] Memory at 8040000000 (64-bit, prefetchable) [size=1G] [ v5: rebase, update compat property for post-1.2 merge ] [ v4: rebase & adapt to latest master again ] [ v3: rebase & adapt to latest master ] [ v2: default to on as suggested by avi, turn off for pc-$old using compat property ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Tested-by: Cam Macdonell <cam@cs.ualberta.ca> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25compat: turn off msi/msix on xhci for old machine typesGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25add pc-1.3 machine typeGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Cleanup unused global var qemu_system_powerdownIgor Mammedov
All deps that used global qemu_system_powerdown var are now converted to notifiers, so remove it. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25target-sparc: use notifier for signaling guest system_powerdown commandIgor Mammedov
Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25target-arm: use notifier for signaling guest system_powerdown commandIgor Mammedov
Acked-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25acpi: use notifier for signaling guest system_powerdown commandIgor Mammedov
In addition, there is no need to allocate an extra irq just for rising SCI in irq handler. Just rise SCI right from notifier handler instead. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Introduce powerdown_notifiersIgor Mammedov
Notifier will be used for signaling powerdown request to guest in a more general way and intended to replace very specific qemu_irq_rise(qemu_system_powerdown) and will allow to remove global variable qemu_system_powerdown. Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25Merge remote-tracking branch 'origin/master' into stagingAnthony Liguori
* origin/master: tcg/i386: fix build with -march < i686 tcg: Streamline movcond_i64 using movcond_i32 tcg: Streamline movcond_i64 using 32-bit arithmetic tcg: Sanity check goto_tb input tcg: Sanity check deposit inputs tcg: Add tcg_debug_assert tcg: Implement concat*_i64 with deposit_i64 tcg: Emit XORI as NOT for appropriate constants tcg: Optimize initial inputs for ori_i64 tcg: Emit ANDI as EXTU for appropriate constants tcg: Adjust descriptions of *cond opcodes tcg/mips: fix MIPS32(R2) detection
2012-09-26tcg/i386: fix build with -march < i686Aurelien Jarno
The movcond_i32 op has to be protected with TCG_TARGET_HAS_movcond_i32 to fix the build with -march < i686. Thanks to Richard Henderson for the hint. Reported-by: Alex Barcelo <abarcelo@ac.upc.edu> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2012-09-26tcg: Streamline movcond_i64 using movcond_i32Richard Henderson
When movcond_i32 is available we can further reduce the generated op count from 12 to 6, and the generated code size on i686 from 88 to 74 bytes. Signed-off-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
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