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Author SHA1 Message Date
Peter Maydell f33f43bd86 Fixes for libcacard (usb smartcard emulation), xhci and uhci.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20141028-1' into staging

Fixes for libcacard (usb smartcard emulation), xhci and uhci.

# gpg: Signature made Tue 28 Oct 2014 10:39:52 GMT 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-usb-20141028-1:
  uhci: remove useless DEBUG
  xhci: add property to turn on/off streams support
  libcacard: don't free sign buffer while sign op is pending
  libcacard: Lock NSS cert db when selecting an applet on an emulated card
  libcacard: introduce new vcard_emul_logout

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-30 17:04:29 +00:00
Peter Maydell 08118672d0 virtio-scsi fixes, the first part of dynamic sysbus devices,
MAINTAINERS updates, and AVX512 support.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

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>
2014-10-30 13:35:12 +00:00
Paolo Bonzini cbd5ac6991 virtio: link the rng backend through an alias property
The virtio-rng backend is currently linked twice, once in the proxy
device (e.g. virtio-rng-pci) and once in virtio-rng-device.  This causes
a double unref of the backend when the parent device is unplugged.

To fix this, make the proxy device use an alias, similar to what is
already being done for the iothread link.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 1414577839-18695-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-30 12:59:27 +00:00
Gonglei a65e4ef90f uhci: remove useless DEBUG
commit 50dcc0f8 (uhci: tracing support) had removed
DPRINTF, the DEBUG marco is useless now, remove it.

Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-10-28 11:38:18 +01:00
Gerd Hoffmann 2aa6bfcb66 xhci: add property to turn on/off streams support
streams support in usb-redir and usb-host works only with recent enough
versions of the support libraries (libusbredir and libusbx).  Failure
mode is rather unelegant:  Any stream usb transfers will throw stall
errors.  Turning off support for streams in the xhci host controller
will work better as the guest can figure beforehand that streams are
not going to work.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2014-10-28 11:38:18 +01:00
Bin Wu 024d9adc79 hw/scsi/virtio-scsi.c: fix the "type" use error in virtio_scsi_handle_ctrl
The local variable "type" in virtio_scsi_handle_ctl represents the tmf
command type from the guest and it has the same meaning as the
req->req.tmf.type. However, before the invoking of virtio_scsi_parse_req
the req->req.tmf.type doesn't has the correct value(just initialized to
zero). Therefore, we need to use the "type" variable to judge the case.

Cc: qemu-stable@nongnu.org
Signed-off-by: Bin Wu <wu.wubin@huawei.com>
[Actually make it compile, "type" must be uint32_t in order to pass
 it to virtio_tswap32s. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-27 16:11:45 +01:00
Ting Wang b7890c40e5 virtio-scsi: sense in virtio_scsi_command_complete
If req->resp.cmd.status is not GOOD, the address of sense for
qemu_iovec_from_buf should be modified from &req->resp to sense.

Cc: qemu-stable@nongnu.org
Signed-off-by: Ting Wang <kathy.wangting@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-27 16:10:53 +01:00
Rob Herring 211b016915 arm/virt: enable PSCI emulation support for system emulation
Now that we have PSCI emulation, enable it for the virt platform.
This simplifies the virt machine a bit now that PSCI no longer
needs to be a KVM only feature.

Signed-off-by: Rob Herring <rob.herring@linaro.org>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1412865028-17725-8-git-send-email-peter.maydell@linaro.org
2014-10-24 12:19:13 +01:00
Dr. David Alan Gilbert 635117e71f omap_gpmc.c: Remove duplicate assignment
This looks like an old merge error and should have no effect.
(Build tested only)

Found by Coccinelle using Julia Lawall's script:
https://lkml.org/lkml/2014/8/23/128

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-id: 1414055855-6688-1-git-send-email-dgilbert@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24 12:19:12 +01:00
KONRAD Frederic 7b95a50858 arm_gic: remove unused parameter.
This removes num_irq parameter from gic_init_irqs_and_distributor as it is not
used.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1412859651-15060-1-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24 12:19:11 +01:00
Ard Biesheuvel c6faa758e3 hw/arm/boot: register cpu reset handlers if using -bios
Move the registering of CPU reset handlers to before the point where
we leave the function in the -bios (not -kernel) case, so CPU reset
works correctly with -bios as well.

Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24 12:19:11 +01:00
Claudio Fontana b32a950910 hw/arm/virt: mark timer in fdt as v8-compatible
check if the first cpu is an armv8 cpu, and if so, put
arm,armv8-timer in the compatible string list.

Note that due to this check, this patch moves the creation
of the timer fdt node to after the cpu creation loop.

Signed-off-by: Claudio Fontana <claudio.fontana@huawei.com>
Message-id: 1411736960-24206-1-git-send-email-hw.claudio@gmail.com
[PMM: updated to list arm,armv8-timer first]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-24 12:19:11 +01:00
Markus Armbruster 7797a73947 hmp: Remove "info pcmcia"
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>
2014-10-24 12:19:11 +01:00
Peter Crosthwaite b591721909 sysbus: Use TYPE_DEVICE GPIO functionality
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>
2014-10-23 16:41:26 +02:00
Peter Crosthwaite 17a96a146c qdev: gpio: Define qdev_pass_gpios()
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>
2014-10-23 16:41:26 +02:00
Peter Crosthwaite aef0869e8e qdev: gpio: Remove qdev_init_gpio_out x1 restriction
Previously this was restricted to a single call per-dev/per-name. With
the conversion of the GPIO output state to QOM the implementation can
now handle repeated calls. Remove the restriction.

Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23 16:41:26 +02:00
Peter Crosthwaite 15942b6569 qdev: gpio: delete NamedGPIOList::out
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>
2014-10-23 16:41:26 +02:00
Peter Crosthwaite b58c303590 irq: Remove qemu_irq_intercept_out
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>
2014-10-23 16:41:25 +02:00
Peter Crosthwaite 60a79016ae qtest/irq: Rework IRQ interception
Change the qtest intercept handler to accept just the individual IRQ
being intercepted as opaque. n is still expected to be correctly set
as for the original intercepted irq. qemu_intercept_irq_in is updated
accordingly.

Then covert the qemu_irq_intercept_out call to use qdev intercept
version. This stops qtest from having to mess with the raw IRQ pointers
(still has to mess with names and counts but a step in the right
direction).

Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23 16:41:25 +02:00
Peter Crosthwaite 0c24db2b8c qdev: gpio: Add API for intercepting a GPIO
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>
2014-10-23 16:41:25 +02:00
Peter Crosthwaite 02757df2ad qdev: gpio: Re-implement qdev_connect_gpio QOM style
Re-implement as a link setter. This should allow the QOM framework to
keep track of ref counts properly etc.

We need to add a default parent for the connecting input incase it's
coming from a non-qdev source. We simply parent the IRQ to the machine
in this case.

Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23 16:41:25 +02:00
Cornelia Huck 4adea8042f virtio-scsi: dataplane: stop trying on notifier error
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>
2014-10-23 16:41:25 +02:00
Cornelia Huck 361dcc790d virtio-scsi: dataplane: fail setup gracefully
The dataplane code is currently doing a hard exit on various setup
failures. In practice, this may mean that a guest suddenly dies after
a dataplane device failed to come up (e.g., when a file descriptor
limit is hit for the nth device).

Let's just try to unwind the setup instead and return.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23 16:41:24 +02:00
Cornelia Huck 6d2c83165b virtio-scsi: dataplane: print why starting failed
Setting up guest or host notifiers may fail, but the user will have
no idea why: Let's print the error returned by the callback.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-10-23 16:41:24 +02:00
Fam Zheng 3e2b2a9c49 virtio-scsi-dataplane: Add op blocker
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>
2014-10-23 16:41:22 +02:00
Zhu Guihua 66e56b13ad qdev: add qdev_build_hotpluggable_device_list helper
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>
2014-10-23 09:02:51 -04:00
Markus Armbruster 22644cd2c6 virtio-balloon: Tweak recent fix for integer overflow
Commit 1f9296b avoids "other kinds of overflow" by limiting the
polling interval to UINT_MAX.  The computations to protect are done in
64 bits.  This is indeed safe when unsigned is 32 bits, as it commonly
is.  It isn't when unsigned is 64 bits.  Purely theoretical; I'm not
aware of such a system.  Limit it to UINT32_MAX instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-10-23 09:01:29 -04:00
Peter Maydell 8f4699d873 Block patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

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>
2014-10-22 16:39:49 +01:00
Peter Maydell 895b810c12 usb: add high speed mouse & keyboard configuration
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20141015-2' into 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>
2014-10-22 15:48:32 +01:00
Peter Maydell 19f3772995 qxl: keep going if reaching guest bug on empty area
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Merge remote-tracking branch 'remotes/spice/tags/pull-spice-20141015-1' into staging

qxl: keep going if reaching guest bug on empty area

# gpg: Signature made Wed 15 Oct 2014 11:45:37 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/spice/tags/pull-spice-20141015-1:
  qxl: keep going if reaching guest bug on empty area

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-10-22 14:49:37 +01:00
Peter Maydell 31cc9514a5 Merge remote-tracking branch 'remotes/lalrae/tags/mips-20141015' into staging
* 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>
2014-10-22 12:06:47 +01:00
Peter Maydell 01a2050fa5 hw/i386/pc_q35.c: Avoid g_assert_cmpint() as it is not in glib 2.12
The function g_assert_cmpint() is not in glib 2.12, which is our current
minimum requirement. Rephrase the recently added assertion to avoid it.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
2014-10-22 11:32:44 +01:00
Markus Armbruster 26f8b3a847 blockdev: Fix blockdev-add not to create DriveInfo
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>
2014-10-20 14:03:50 +02:00
Markus Armbruster a987ee1f1b ide: Complete conversion from BlockDriverState to BlockBackend
Add a BlockBackend member to TrimAIOCB, so ide_issue_trim_cb() can use
blk_aio_discard() instead of bdrv_aio_discard().

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>
2014-10-20 14:03:50 +02:00
Markus Armbruster 4be746345f hw: Convert from BlockDriverState to BlockBackend, mostly
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>
2014-10-20 14:02:25 +02:00
Markus Armbruster 2a30307f70 virtio-blk: Rename VirtIOBlkConf variables to conf
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>
2014-10-20 14:02:21 +02:00
Markus Armbruster f75167313c virtio-blk: Drop redundant VirtIOBlock member conf
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>
2014-10-20 13:48:28 +02:00
Markus Armbruster 097310b53e block: Rename BlockDriverCompletionFunc to BlockCompletionFunc
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>
2014-10-20 13:41:27 +02:00
Markus Armbruster 7c84b1b831 block: Rename BlockDriverAIOCB* to BlockAIOCB*
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>
2014-10-20 13:41:27 +02:00
Markus Armbruster fa1d36df74 block: Eliminate DriveInfo member bdrv, use blk_by_legacy_dinfo()
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>
2014-10-20 13:41:27 +02:00
Markus Armbruster b9fe8a7a12 blockdev: Eliminate drive_del()
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>
2014-10-20 13:41:26 +02:00
Markus Armbruster 9ba10c95a4 block: Make BlockBackend own its BlockDriverState
On BlockBackend destruction, unref its BlockDriverState.  Replaces the
callers' unrefs.

This turns the pointer from BlockBackend to BlockDriverState into a
strong reference, managed with bdrv_ref() / bdrv_unref().  The
back-pointer remains weak.

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>
2014-10-20 13:41:26 +02:00
Markus Armbruster 7e7d56d9e0 block: Connect BlockBackend to BlockDriverState
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>
2014-10-20 13:41:26 +02:00
Markus Armbruster 26f54e9a3c block: New BlockBackend
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>
2014-10-20 13:41:26 +02:00
Markus Armbruster e4e9986b1c block: Split bdrv_new_root() off bdrv_new()
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>
2014-10-20 13:41:26 +02:00
Peter Maydell 8a2c263624 vga-pci: add qext region to mmio
vga: Remove unused arrays dmask4 and dmask16
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-vga-20141015-1' into 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>
2014-10-16 09:26:14 +01:00
Peter Maydell 605c690b1b allow changing bootorder via monitor at runtime,
by making bootindex a writable qom property.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-bootindex-20141015-1' 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>
2014-10-16 09:24:45 +01:00
Gerd Hoffmann ac20e1bb0e xhci: remove dead code
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2014-10-15 13:39:48 +02:00
Jan Vesely b13ce07688 usb-hid: Add high speed keyboard configuration
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>
2014-10-15 13:39:22 +02:00
Jan Vesely 58e4fee24a usb-hid: Add high speed mouse configuration
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>
2014-10-15 13:38:09 +02:00