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2014-10-31Add skip_dump flag to ignore memory region during dumpNikunj A Dadhania1-0/+19
The PCI MMIO might be disabled or the device in the reset state. Make sure we do not dump these memory regions. Signed-off-by: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> CC: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31-machine vmport=off: Allow disabling of VMWare ioport emulationDr. David Alan Gilbert1-0/+2
This is a pc & q35 only machine opt. VMWare apparently doesn't like running under QEMU due to our incomplete emulation of it's special IO Port. This adds a pc & q35 property to allow it to be turned off. Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Signed-off-by: Don Slutz <dslutz@verizon.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31megasas: Clear unit attention on initial resetHannes Reinecke1-0/+1
The EFI firmware doesn't handle unit attentions properly, so we need to clear the Power On/Reset unit attention upon initial reset. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31megasas: add MegaRAID SAS 2108 emulationHannes Reinecke1-0/+1
The 2108 chip supports MSI and MSI-X, so update the emulation to support both chips. Signed-off-by: Hannes Reinecke <hare@suse.de> [Make VMStateDescription const. - Paolo] Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-31scsi: Rename scsi_*_length() to scsi_*_xfer(), add scsi_cdb_length()Hannes Reinecke1-2/+3
scsi_cdb_length() does not return the length of the cdb, but the transfersize encoded in the cdb. So rename it to scsi_cdb_xfer() and also rename all other related functions to end with _xfer. We can then add a new scsi_cdb_length() which actually does return the length of the cdb. With that DEBUG_SCSI can now display the correct CDB buffer. Signed-off-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-30Merge remote-tracking branch 'remotes/sstabellini/xen-2014-10-30' into stagingPeter Maydell1-0/+15
* remotes/sstabellini/xen-2014-10-30: fix off-by-one error in pci_piix3_xen_ide_unplug xen-hvm.c: Add support for Xen access to vmport Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-30xen-hvm.c: Add support for Xen access to vmportDon Slutz1-0/+15
This adds synchronisation of the 6 vcpu registers (only 32bits of them) that vmport.c needs between Xen and QEMU. This is to avoid a 2nd and 3rd exchange between QEMU and Xen to fetch and put these 6 vcpu registers used by the code in vmport.c and vmmouse.c The registers are passed in the new shared page provided by HVM_PARAM_VMPORT_REGS_PFN. Add new array to XenIOState that allows selection of current_cpu by vcpu id. Now pass XenIOState to handle_ioreq(). Add new routines regs_to_cpu(), regs_from_cpu(), and handle_vmport_ioreq(). Signed-off-by: Don Slutz <dslutz@verizon.com> Reviewed-by: Paul Durrant <paul.durrant@citrix.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
2014-10-30Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into stagingPeter Maydell4-6/+10
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>
2014-10-24Merge remote-tracking branch ↵Peter Maydell1-6/+0
'remotes/pmaydell/tags/pull-target-arm-20141024' into staging target-arm queue: * remove pointless 'info pcmcia' and a lot of now-dead code * register ARM cpu reset handlers even if not using -kernel * update to libvixl 1.6 * various minor code cleanups * support PSCI under TCG ('virt' machine can now be shut down, SMP configurations work) * correct the sense of the AArch64 DCZID DZP bit * report a valid L1Ip field in CTR_EL0 for CPU type "any" * correctly UNDEF writes to FPINST/FPINST2 from EL0 * more preparatory code refactoring for EL2/EL3 support # gpg: Signature made Fri 24 Oct 2014 12:35:52 BST using RSA key ID 14360CDE # gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" * remotes/pmaydell/tags/pull-target-arm-20141024: (23 commits) target-arm: A32: Emulate the SMC instruction target-arm: make arm_current_el() return EL3 target-arm: rename arm_current_pl to arm_current_el target-arm: reject switching to monitor mode target-arm: add arm_is_secure() function target-arm: increase arrays of registers R13 & R14 target-arm: correctly UNDEF writes to FPINST/FPINST2 from EL0 target-arm: Report a valid L1Ip field in CTR_EL0 for CPU type "any" target-arm: Correct sense of the DCZID DZP bit arm/virt: enable PSCI emulation support for system emulation target-arm: add emulation of PSCI calls for system emulation target-arm: Add support for A32 and T32 HVC and SMC insns target-arm: Handle SMC/HVC undef-if-no-ELx in pre_* helpers target-arm: add missing PSCI constants needed for PSCI emulation target-arm: do not set do_interrupt handlers for ARM and AArch64 user modes target-arm: add powered off cpu state omap_gpmc.c: Remove duplicate assignment disas/libvixl/a64/instructions-a64.h: Remove unused constants arm_gic: remove unused parameter. disas/libvixl: Update to libvixl 1.6 ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24hmp: Remove "info pcmcia"Markus Armbruster1-6/+0
This command lists PCMCIA sockets and cards. Only a few ARM boards have sockets (akita, borzoi, connex, mainstone, spitz, terrier, tosa, verdex, z2), the only card is the DSCM-1xxxx Hitachi Microdrive (qdev "microdrive"), and it is only inserted during machine init, if ever. So this command doesn't really tell anybody anything new so far. Moreover, pcmcia_socket_unregister() has a use-after-free bug, flagged by Coverity. Has never been used, because there has never been code to eject a PCMCIA card. Not worth fixing & converting to QMP. Remove it. Signed-off-by: Markus Armbruster <armbru@redhat.com> Acked-by: Luiz Capitulino <lcapitulino@redhat.com> Acked-by: Andreas Färber <afaerber@suse.de> Message-id: 1411144812-22958-1-git-send-email-armbru@redhat.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell1-0/+2
Block patches # gpg: Signature made Thu 23 Oct 2014 18:56:05 BST using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (32 commits) qemu-img: Print error if check failed block: char devices on FreeBSD are not behind a pager iotests: Add test for qcow2 L1 table update qcow2: Do not overflow when writing an L1 sector iotests: Add test for map commands qemu-io: Respect early image end for map block: Respect underlying file's EOF docs/qcow2: Limit refcount_order to [0, 6] docs/qcow2: Correct refcount_block_entries qcow2: Drop REFCOUNT_SHIFT iotests: Add test for potentially damaging repairs iotests: Fix test outputs qcow2: Clean up after refcount rebuild qcow2: Rebuild refcount structure during check qcow2: Do not perform potentially damaging repairs qcow2: Fix refcount blocks beyond image end qcow2: Reuse refcount table in calculate_refcounts() qcow2: Let inc_refcounts() resize the reftable qcow2: Let inc_refcounts() return -errno qcow2: Split fail code in L1 and L2 checks ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-23sysbus: Use TYPE_DEVICE GPIO functionalityPeter Crosthwaite1-4/+3
Re-implement the Sysbus GPIOs to use the existing TYPE_DEVICE GPIO named framework. A constant string name is chosen to avoid conflicts with existing unnamed GPIOs. This unifies GPIOs are IRQs for sysbus devices and allows removal of all Sysbus state for GPIOs. Any existing and future-added functionality for GPIOs is now also available for sysbus IRQs. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23qdev: gpio: Define qdev_pass_gpios()Peter Crosthwaite1-0/+3
Allows a container to take ownership of GPIOs in a contained device and automatically connect them as GPIOs to the container. This prepares for deprecation of the SYSBUS IRQ functionality, which has this feature. We push it up to the device level instead of sysbus level. There's nothing sysbus specific about passing GPIOs to containers so its a legitimate device-level generic feature. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23qdev: gpio: delete NamedGPIOList::outPeter Crosthwaite1-1/+0
All users of GPIO outputs are fully QOMified, using QOM properties to access the GPIO data. Delete. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23irq: Remove qemu_irq_intercept_outPeter Crosthwaite1-1/+0
No more users left and obsoleted by qdev_intercept_gpio_out. Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23qdev: gpio: Add API for intercepting a GPIOPeter Crosthwaite1-0/+2
To replace the old qemu_irq intercept API (which had users reaching into qdev private state for GPIOs). Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23virtio-scsi: dataplane: stop trying on notifier errorCornelia Huck1-0/+1
There's no use to constantly trying to enable dataplane if we failed to set up guest or host notifiers, so fence it off in that case. We'll try again if the device is reinitialized. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23virtio-scsi-dataplane: Add op blockerFam Zheng1-0/+1
We need this to protect dataplane thread from race conditions with block jobs until the latter is made dataplane-safe. Signed-off-by: Fam Zheng <famz@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23block: Add qemu_{,try_}blockalign0()Max Reitz1-0/+2
These functions call their non-0-counterparts and then fill the allocated buffer with 0 (if the allocation has been successful). Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-23qdev: add qdev_build_hotpluggable_device_list helperZhu Guihua1-0/+2
For peripheral device del completion, add a function to build a list for hotpluggable devices. Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com> Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-10-22Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into stagingPeter Maydell20-153/+244
Block patches # gpg: Signature made Mon 20 Oct 2014 13:04:09 BST using RSA key ID C88F2FD6 # gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>" * remotes/kevin/tags/for-upstream: (28 commits) block: Make device model's references to BlockBackend strong block: Lift device model API into BlockBackend blockdev: Convert qmp_eject(), qmp_change_blockdev() to BlockBackend block/qapi: Convert qmp_query_block() to BlockBackend blockdev: Fix blockdev-add not to create DriveInfo blockdev: Drop superfluous DriveInfo member id pc87312: Drop unused members of PC87312State ide: Complete conversion from BlockDriverState to BlockBackend hw: Convert from BlockDriverState to BlockBackend, mostly virtio-blk: Rename VirtIOBlkConf variables to conf virtio-blk: Drop redundant VirtIOBlock member conf block: Rename BlockDriverCompletionFunc to BlockCompletionFunc block: Rename BlockDriverAIOCB* to BlockAIOCB* block: Eliminate DriveInfo member bdrv, use blk_by_legacy_dinfo() block: Merge BlockBackend and BlockDriverState name spaces block: Eliminate BlockDriverState member device_name[] block: Eliminate bdrv_iterate(), use bdrv_next() blockdev: Eliminate drive_del() block: Make BlockBackend own its BlockDriverState block: Code motion to get rid of stubs/blockdev.c ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-22Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20141015-2' into ↵Peter Maydell1-0/+8
staging usb: add high speed mouse & keyboard configuration * remotes/kraxel/tags/pull-usb-20141015-2: xhci: remove dead code usb-hid: Add high speed keyboard configuration usb-hid: Add high speed mouse configuration usb-hid: Move descriptor decision to usb-hid initfn Conflicts: include/hw/i386/pc.h [Fixed trivial merge conflict in the pc-2.1 property list] Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-22Merge remote-tracking branch 'remotes/lalrae/tags/mips-20141015' into stagingPeter Maydell1-0/+4
* remotes/lalrae/tags/mips-20141015: (28 commits) target-mips: Remove unused gen_load_ACX, gen_store_ACX and cpu_ACX target-mips/dsp_helper.c: Add ifdef guards around various functions target-mips/translate.c: Add ifdef guard around check_mips64() target-mips/op_helper.c: Remove unused do_lbu() function target-mips/dsp_helper.c: Remove unused function get_DSPControl_24() target-mips: fix broken MIPS16 and microMIPS target-mips/translate.c: Update OPC_SYNCI target-mips: define a new generic CPU supporting MIPS64 Release 6 ISA mips_malta: update malta's pseudo-bootloader - replace JR with JALR target-mips: remove JR, BLTZAL, BGEZAL and add NAL, BAL instructions target-mips: do not allow Status.FR=0 mode in 64-bit FPU target-mips: add new Floating Point Comparison instructions target-mips: add new Floating Point instructions softfloat: add functions corresponding to IEEE-2008 min/maxNumMag target-mips: add AUI, LSA and PCREL instruction families target-mips: add compact and CP1 branches target-mips: add ALIGN, DALIGN, BITSWAP and DBITSWAP instructions target-mips: Status.UX/SX/KX enable 32-bit address wrapping target-mips: move CLO, DCLO, CLZ, DCLZ, SDBBP and free special2 in R6 target-mips: redefine Integer Multiply and Divide instructions ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-20block: Lift device model API into BlockBackendMarkus Armbruster3-50/+42
Move device model attachment / detachment and the BlockDevOps device model callbacks and their wrappers from BlockDriverState to BlockBackend. Wrapper calls in block.c change from bdrv_dev_FOO_cb(bs, ...) to if (bs->blk) { bdrv_dev_FOO_cb(bs->blk, ...); } No change, because both bdrv_dev_change_media_cb() and bdrv_dev_resize_cb() do nothing when no device model is attached, and a device model can be attached only when bs->blk. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20block/qapi: Convert qmp_query_block() to BlockBackendMarkus Armbruster1-3/+0
Much more command code needs conversion. I start with this one because it's using bdrv_dev_* functions, which I'm about to lift into BlockBackend. While there, give bdrv_query_info() internal linkage. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20blockdev: Fix blockdev-add not to create DriveInfoMarkus Armbruster1-1/+0
blockdev_init() always creates a DriveInfo, but only drive_new() fills it in. qmp_blockdev_add() leaves it blank. This results in a drive with type = IF_IDE, bus = 0, unit = 0. Screwed up in commit ee13ed1c. Board initialization code looking for IDE drive (0,0) can pick up one of these bogus drives. The QMP command has to execute really early to be visible. Not sure how likely that is in practice. Fix by creating DriveInfo in drive_new(). Block backends created by blockdev-add don't get one. Breaks the test for "has been created by qmp_blockdev_add()" in blockdev_mark_auto_del() and do_drive_del(), because it changes the value of dinfo && !dinfo->enable_auto_del from true to false. Simply test !dinfo instead. Leaves DriveInfo member enable_auto_del unused. Drop it. A few places assume a block backend always has a DriveInfo. Fix them up. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20blockdev: Drop superfluous DriveInfo member idMarkus Armbruster1-1/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20pc87312: Drop unused members of PC87312StateMarkus Armbruster1-3/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20hw: Convert from BlockDriverState to BlockBackend, mostlyMarkus Armbruster11-32/+108
Device models should access their block backends only through the block-backend.h API. Convert them, and drop direct includes of inappropriate headers. Just four uses of BlockDriverState are left: * The Xen paravirtual block device backend (xen_disk.c) opens images itself when set up via xenbus, bypassing blockdev.c. I figure it should go through qmp_blockdev_add() instead. * Device model "usb-storage" prompts for keys. No other device model does, and this one probably shouldn't do it, either. * ide_issue_trim_cb() uses bdrv_aio_discard() instead of blk_aio_discard() because it fishes its backend out of a BlockAIOCB, which has only the BlockDriverState. * PC87312State has an unused BlockDriverState[] member. The next two commits take care of the latter two. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20virtio-blk: Rename VirtIOBlkConf variables to confMarkus Armbruster1-1/+1
This is consistent with how VirtIOFOOConf variables are named elsewhere, and makes blk available for BlockBackend variables. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20virtio-blk: Drop redundant VirtIOBlock member confMarkus Armbruster1-1/+0
Commit 12c5674 turned it into a pointer to member blk.conf. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20block: Rename BlockDriverCompletionFunc to BlockCompletionFuncMarkus Armbruster7-29/+29
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 Armbruster6-42/+42
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>
2014-10-20block: Eliminate DriveInfo member bdrv, use blk_by_legacy_dinfo()Markus Armbruster1-1/+0
The patch is big, but all it really does is replacing dinfo->bdrv by blk_bs(blk_by_legacy_dinfo(dinfo)) The replacement is repetitive, but the conversion of device models to BlockBackend is imminent, and will shorten it to just blk_legacy_dinfo(dinfo). Line wrapping muddies the waters a bit. I also omit tests whether dinfo->bdrv is null, because it never is. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20block: Merge BlockBackend and BlockDriverState name spacesMarkus Armbruster1-1/+1
BlockBackend's name space is separate only to keep the initial patches simple. Time to merge the two. Retain bdrv_find() and bdrv_get_device_name() for now, to keep this series manageable. 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: Eliminate BlockDriverState member device_name[]Markus Armbruster2-3/+1
device_name[] can become non-empty only in bdrv_new_root() and bdrv_move_feature_fields(). The latter is used only to undo damage done by bdrv_swap(). The former is called only by blk_new_with_bs(). Therefore, when a BlockDriverState's device_name[] is non-empty, then it's been created with a BlockBackend, and vice versa. Furthermore, blk_new_with_bs() keeps the two names equal. Therefore, device_name[] is redundant. Eliminate it. 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: Eliminate bdrv_iterate(), use bdrv_next()Markus Armbruster1-2/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20blockdev: Eliminate drive_del()Markus Armbruster1-1/+0
drive_del() has become a trivial wrapper around blk_unref(). Get rid of it. 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: Code motion to get rid of stubs/blockdev.cMarkus Armbruster1-1/+0
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-20block: Connect BlockBackend and DriveInfoMarkus Armbruster1-0/+4
Make the BlockBackend own the DriveInfo. Change blockdev_init() to return the BlockBackend instead of the DriveInfo. 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: Connect BlockBackend to BlockDriverStateMarkus Armbruster2-0/+7
Convenience function blk_new_with_bs() creates a BlockBackend with its BlockDriverState. Callers have to unref both. The commit after next will relieve them of the need to unref the BlockDriverState. Complication: due to the silly way drive_del works, we need a way to hide a BlockBackend, just like bdrv_make_anon(). To emphasize its "special" status, give the function a suitably off-putting name: blk_hide_on_behalf_of_do_drive_del(). Unfortunately, hiding turns the BlockBackend's name into the empty string. Can't avoid that without breaking the blk->bs->device_name equals blk->name invariant. 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: New BlockBackendMarkus Armbruster2-0/+27
A block device consists of a frontend device model and a backend. A block backend has a tree of block drivers doing the actual work. The tree is managed by the block layer. We currently use a single abstraction BlockDriverState both for tree nodes and the backend as a whole. Drawbacks: * Its API includes both stuff that makes sense only at the block backend level (root of the tree) and stuff that's only for use within the block layer. This makes the API bigger and more complex than necessary. Moreover, it's not obvious which interfaces are meant for device models, and which really aren't. * Since device models keep a reference to their backend, the backend object can't just be destroyed. But for media change, we need to replace the tree. Our solution is to make the BlockDriverState generic, with actual driver state in a separate object, pointed to by member opaque. That lets us replace the tree by deinitializing and reinitializing its root. This special need of the root makes the data structure awkward everywhere in the tree. The general plan is to separate the APIs into "block backend", for use by device models, monitor and whatever other code dealing with block backends, and "block driver", for use by the block layer and whatever other code (if any) dealing with trees and tree nodes. Code dealing with block backends, device models in particular, should become completely oblivious of BlockDriverState. This should let us clean up both APIs, and the tree data structures. This commit is a first step. It creates a minimal "block backend" API: type BlockBackend and functions to create, destroy and find them. BlockBackend objects are created and destroyed exactly when root BlockDriverState objects are created and destroyed. "Root" in the sense of "in bdrv_states". They're not yet used for anything; that'll come shortly. A root BlockDriverState is created with bdrv_new_root(), so where to create a BlockBackend is obvious. Where these roots get destroyed isn't always as obvious. It is obvious in qemu-img.c, qemu-io.c and qemu-nbd.c, and in error paths of blockdev_init(), blk_connect(). That leaves destruction of objects successfully created by blockdev_init() and blk_connect(). blockdev_init() is used only by drive_new() and qmp_blockdev_add(). Objects created by the latter are currently indestructible (see commit 48f364d "blockdev: Refuse to drive_del something added with blockdev-add" and commit 2d246f0 "blockdev: Introduce DriveInfo.enable_auto_del"). Objects created by the former get destroyed by drive_del(). Objects created by blk_connect() get destroyed by blk_disconnect(). BlockBackend is reference-counted. Its reference count never exceeds one so far, but that's going to change. In drive_del(), the BB's reference count is surely one now. The BDS's reference count is greater than one when something else is holding a reference, such as a block job. In this case, the BB is destroyed right away, but the BDS lives on until all extra references get dropped. 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: Split bdrv_new_root() off bdrv_new()Markus Armbruster1-1/+2
Creating an anonymous BDS can't fail. Make that obvious. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Benoît Canet <benoit.canet@nodalink.com> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2014-10-16glib: add compatibility interface for g_strcmp0()Gonglei1-0/+17
This patch fixes compilation errors when building against glib < 2.16.0 due to the missing g_strcmp0() function. Suggested-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Gonglei <arei.gonglei@huawei.com> Message-id: 1413457177-10132-1-git-send-email-arei.gonglei@huawei.com Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-16Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20141015-1' into ↵Peter Maydell1-0/+8
staging vga-pci: add qext region to mmio vga: Remove unused arrays dmask4 and dmask16 # gpg: Signature made Wed 15 Oct 2014 10:12:06 BST using RSA key ID D3E87138 # gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" # gpg: aka "Gerd Hoffmann <gerd@kraxel.org>" # gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>" * remotes/kraxel/tags/pull-vga-20141015-1: hw/display/vga: Remove unused arrays dmask4 and dmask16 vga-pci: add qext region to mmio Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-16Merge remote-tracking branch 'remotes/kraxel/tags/pull-bootindex-20141015-1' ↵Peter Maydell4-3/+9
into staging allow changing bootorder via monitor at runtime, by making bootindex a writable qom property. * remotes/kraxel/tags/pull-bootindex-20141015-1: (34 commits) bootindex: change fprintf to error_report bootindex: delete bootindex when device is removed bootindex: move calling add_boot_device_patch to bootindex setter function ide: add calling add_boot_device_patch in bootindex setter function nvma: ide: add bootindex to qom property usb-storage: add bootindex to qom property virtio-blk: alias bootindex property explicitly for virt-blk-pci/ccw/s390 block: remove bootindex property from qdev to qom virtio-blk: add bootindex to qom property ide: add bootindex to qom property scsi: add bootindex to qom property isa-fdc: remove bootindexA/B property from qdev to qom redirect: remove bootindex property from qdev to qom vfio: remove bootindex property from qdev to qom pci-assign: remove bootindex property from qdev to qom host-libusb: remove bootindex property from qdev to qom virtio-net: alias bootindex property explicitly for virt-net-pci/ccw/s390 net: remove bootindex property from qdev to qom usb-net: add bootindex to qom property vmxnet3: add bootindex to qom property ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-15glib: add compatibility interface for g_get_monotonic_time()Stefan Hajnoczi1-0/+19
This patch fixes compilation errors when building against glib <2.28.0 due to the missing g_get_monotonic_time() function. The compilation error in tests/libqos/virtio.c was introduced in commit 70556264a89a268efba1d7e8e341adcdd7881eb4 ("libqos: use microseconds instead of iterations for virtio timeout"). Add a simple g_get_monotonic_time() implementation to glib-compat.h based on code from vhost-user-test.c. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> [Igor: add G_TIME_SPAN_SECOND, include glib-compat.h in libqtest.h] Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-15usb-hid: Add high speed keyboard configurationJan Vesely1-0/+4
Signed-off-by: Jan Vesely <jano.vesely@gmail.com> [ kraxel: fixup compat property to apply to 2.1 & older ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-10-15usb-hid: Add high speed mouse configurationJan Vesely1-0/+4
Signed-off-by: Jan Vesely <jano.vesely@gmail.com> [ kraxel: fixup compat property to apply to 2.1 & older ] Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-10-15Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20141015' ↵Peter Maydell3-0/+39
into staging migration/next for 20141015 # gpg: Signature made Wed 15 Oct 2014 09:21:54 BST using RSA key ID 5872D723 # gpg: Can't check signature: public key not found * remotes/juanquintela/tags/migration/20141015: migration: catch unknown flag combinations in ram_load qemu-file: Move stdio implementation to qemu-file-stdio.c qemu-file: Move unix and socket implementations to qemu-file-unix.c qemu-file: Use qemu_file_is_writable() on stdio_fclose() qemu-file: Make qemu_file_is_writable() non-static qemu-file: Add copyright header to qemu-file.c vmstate: Allow dynamic allocation for VBUFFER during migration block/migration: Disable cache invalidate for incoming migration Tests: QEMUSizedBuffer/QEMUBuffer QEMUSizedBuffer based QEMUFile Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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