Commit graph

2519 commits

Author SHA1 Message Date
Andreas Färber 342b0711cd stm32f205: Fix SoC type name
The type name for the SoC device, unlike those of its sub-devices,
did not follow the QOM naming conventions. While the usage is internal
only, this is exposed through QMP and HMP, so fix it before release.

Cc: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Alistair Francis <alistair@alistair23.me>
Message-id: 1428676676-23056-1-git-send-email-afaerber@suse.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-04-13 11:37:10 +01:00
Paolo Bonzini 2a6cdd6d35 virtio-blk: correctly dirty guest memory
After qemu_iovec_destroy, the QEMUIOVector's size is zeroed and
the zero size ultimately is used to compute virtqueue_push's len
argument.  Therefore, reads from virtio-blk devices did not
migrate their results correctly.  (Writes were okay).

Save the size in virtio_blk_handle_request, and use it when the request
is completed.

Based on a patch by Wen Congyang.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Message-id: 1427997044-392-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-04-08 10:39:18 +01:00
Greg Kurz 9be6e69f12 vhost: fix typo in vq_index description
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-04-04 09:48:19 +03:00
Cornelia Huck 14655e9a18 glib-compat: fix problems with not-quite glib 2.22
Commit 89b516d8b9 ("glib: add
compatibility interface for g_get_monotonic_time()") aimed
at making qemu build with old glib versions. At least SLES11SP3,
however, contains a backport of g_get_monotonic_time() while
keeping the reported glib version at 2.22.

Let's work around this by a strategically placed #define.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1427987865-433-2-git-send-email-cornelia.huck@de.ibm.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-04-02 16:53:42 +01:00
Nadav Amit 9cb11fd753 target-i386: clear bsp bit when designating bsp
Since the BSP bit is writable on real hardware, during reset all the CPUs which
were not chosen to be the BSP should have their BSP bit cleared. This fix is
required for KVM to work correctly when it changes the BSP bit.

An additional fix is required for QEMU tcg to allow software to change the BSP
bit.

Signed-off-by: Nadav Amit <namit@cs.technion.ac.il>
Message-Id: <1427932716-11800-1-git-send-email-namit@cs.technion.ac.il>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-04-02 15:57:27 +02:00
Paolo Bonzini a59629fcc6 rcu: do not create thread in pthread_atfork callback
If QEMU forks after the CPU threads have been created, qemu_mutex_lock_iothread
will not be able to do qemu_cpu_kick_thread.  There is no solution other than
assuming that forks after the CPU threads have been created will end up in an
exec.  Forks before the CPU threads have been created (such as -daemonize)
have to call rcu_after_fork manually.

Notably, the oxygen theme for GTK+ forks and shows a "No such process" error
without this patch.

This patch can be reverted once the iothread loses the "kick the TCG thread"
magic.

User-mode emulation does not use the iothread, so it can also call
rcu_after_fork.

Reported by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Tested by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-04-01 10:06:38 +02:00
Lin Ma d6edb15576 qom: Add can_be_deleted callback to UserCreatableClass
If backends implement the can_be_deleted and it returns false,
Then the qmp_object_del won't delete the given backends.

Signed-off-by: Lin Ma <lma@suse.com>
Message-Id: <1427704589-7688-2-git-send-email-lma@suse.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-04-01 10:06:38 +02:00
Paolo Bonzini c6e765035b powerpc: fix -machine usb=no for newworld and pseries machines
Capture the explicit setting of "usb=no" into a separate bool, and
use it to skip the update of machine->usb in the board init function.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2015-03-25 22:49:47 +01:00
Peter Maydell 4eef86486d NUMA queue 2015-03-19
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Merge remote-tracking branch 'remotes/ehabkost/tags/work/numa-verify-cpus-pull-request' into staging

NUMA queue 2015-03-19

# gpg: Signature made Thu Mar 19 19:25:53 2015 GMT using RSA key ID 984DC5A6
# gpg: Can't check signature: public key not found

* remotes/ehabkost/tags/work/numa-verify-cpus-pull-request:
  numa: Print warning if no node is assigned to a CPU
  pc: fix default VCPU to NUMA node mapping
  numa: introduce machine callback for VCPU to node mapping
  numa: Reject configuration if CPU appears on multiple nodes
  numa: Reject CPU indexes > max_cpus
  numa: Fix off-by-one error at MAX_CPUMASK_BITS check

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-20 10:37:03 +00:00
Peter Maydell e7e9b49f8e usb: bugfix collection.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-20150320-1' into staging

usb: bugfix collection.

# gpg: Signature made Fri Mar 20 07:51:19 2015 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-20150320-1:
  ehci: fix segfault when hot-unplugging ehci controller
  ohci: fix resource cleanup leak
  uhci: fix segfault when hot-unplugging uhci controller
  hw/usb: Include USB files only if necessary
  usb/dev-storage: Avoid qerror_report_err() outside QMP handlers
  usb/dev-storage: Fix QMP device_add missing encryption key failure
  monitor usb: Inline monitor_read_bdrv_key_start()'s first part
  monitor: Plug memory leak in monitor_read_bdrv_key_start()
  monitor: Drop dead QMP check from monitor_read_password()
  uhci: Convert to realize
  ohci: Complete conversion to realize
  usb: Improve companion configuration error messages
  usb: Propagate errors through usb_register_companion()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-20 09:50:08 +00:00
Igor Mammedov 57924bcd87 numa: introduce machine callback for VCPU to node mapping
Current default round-robin way of distributing VCPUs among
NUMA nodes might be wrong in case on multi-core/threads
CPUs. Making guests confused wrt topology where cores from
the same socket are on different nodes.

Allow a machine to override default mapping by providing
 MachineClass::cpu_index_to_socket_id()
callback which would allow it group VCPUs from a socket
on the same NUMA node.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-03-19 16:12:09 -03:00
Peter Maydell 33a8d5b72d virtio-serial api: guest_writable callback for users
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Merge remote-tracking branch 'remotes/amit/tags/vser-for-2.3-3' into staging

virtio-serial api: guest_writable callback for users

# gpg: Signature made Thu Mar 19 12:06:55 2015 GMT using RSA key ID 854083B6
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg:                 aka "Amit Shah <amit@kernel.org>"
# gpg:                 aka "Amit Shah <amitshah@gmx.net>"

* remotes/amit/tags/vser-for-2.3-3:
  virtio: serial: expose a 'guest_writable' callback for users

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-19 16:46:32 +00:00
Peter Maydell 7a9a5e72e8 trivial patches for 2015-03-19
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Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-03-19' into staging

trivial patches for 2015-03-19

# gpg: Signature made Thu Mar 19 08:57:54 2015 GMT using RSA key ID A4C3D7DB
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"

* remotes/mjt/tags/pull-trivial-patches-2015-03-19: (24 commits)
  qga/commands-posix: Fix resource leak
  elf-loader: Add missing error handling for call of lseek
  elf-loader: Fix truncation warning from coverity
  hmp: Fix texinfo documentation
  Fix typos in comments
  qtest/ahci: Fix a bit mask expression
  vl: fix resource leak with monitor_fdset_add_fd
  smbios: add max speed comdline option for type-17 (meory device) structure
  pc-dimm: Add description for device list.
  configure: enable kvm on x32
  error: Replace error_report() & error_free() with error_report_err()
  arm: fix memory leak
  qmp: Drop unused .user_print from command definitions
  hmp: Fix definition of command quit
  target-moxie: Fix warnings from Sparse (one-bit signed bitfield)
  block/qapi: Fix Sparse warning
  Fix remaining warnings from Sparse (void return)
  qom: Fix warning from Sparse
  target-mips: Fix warning from Sparse
  arm/nseries: Fix warnings from Sparse
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-19 14:10:20 +00:00
Amit Shah 4add73aa60 virtio: serial: expose a 'guest_writable' callback for users
Users of virtio-serial may want to know when a port becomes writable.  A
port can stop accepting writes if the guest port is open but not being
read from.  In this case, data gets queued up in the virtqueue, and
after the vq is full, writes to the port do not succeed.

When the guest reads off a vq element, and adds a new one for the host
to put data in, we can tell users the port is available for more writes,
via the new ->guest_writable() callback.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2015-03-19 17:35:40 +05:30
Peter Maydell 2259c16dc2 pci, virtio bugfixes for 2.3
Just a bunch of bugfixes. Should be nothing remarkable here.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pci, virtio bugfixes for 2.3

Just a bunch of bugfixes. Should be nothing remarkable here.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Wed Mar 18 12:31:03 2015 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  pcie_aer: fix comment to match pcie spec
  pci: fix several trivial typos in comment
  aer: fix a wrong init PCI_ERR_COR_STATUS w1cmask type register
  pcie_aer: fix typos in pcie_aer_inject_error comment
  aer: fix wrong check on expose aer tlp prefix log
  pcie: correct mistaken register bit for End-End TLP Prefix Blocking
  virtio: Fix memory leaks reported by Coverity
  virtio: validate the existence of handle_output before calling it

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-19 11:12:22 +00:00
Stefan Weil 23bf2e7680 elf-loader: Add missing error handling for call of lseek
This fixes a warning from Coverity.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-03-19 11:37:40 +03:00
Stefan Weil e7ae771f6d Fix remaining warnings from Sparse (void return)
Sparse report:

hw/display/vga.c:2000:5: warning: returning void-valued expression
hw/intc/arm_gic.c:707:9: warning: returning void-valued expression
hw/intc/etraxfs_pic.c:138:9: warning: returning void-valued expression
hw/nvram/fw_cfg.c:475:5: warning: returning void-valued expression
hw/timer/a9gtimer.c:124:5: warning: returning void-valued expression
hw/tpm/tpm_tis.c:794:5: warning: returning void-valued expression
hw/usb/hcd-musb.c:558:9: warning: returning void-valued expression
hw/usb/hcd-musb.c:776:13: warning: returning void-valued expression
hw/usb/hcd-musb.c:867:5: warning: returning void-valued expression
hw/usb/hcd-musb.c:932:5: warning: returning void-valued expression
include/qom/cpu.h:584:5: warning: returning void-valued expression
monitor.c:4686:13: warning: returning void-valued expression
monitor.c:4690:13: warning: returning void-valued expression

Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Andreas Färber <afaerber@suse.de>
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-03-19 11:11:55 +03:00
Chen Fan 98a2f30a1b pci: fix several trivial typos in comment
Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-18 12:19:16 +01:00
Chen Fan 30b04f8711 pcie: correct mistaken register bit for End-End TLP Prefix Blocking
from pcie spec 7.8.17, the End-End TLP Prefix Blocking bit local
is 15(e.g. 0x8000) in device control 2 register.

Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-18 12:14:45 +01:00
Alexey Kardashevskiy 89d5cbddee profiler: Reenable built-in profiler
2ed1ebcf6 "timer: replace time() with QEMU_CLOCK_HOST" broke compile
when configured with --enable-profiler. Turned out the profiler has been
broken for a while.

This does s/qemu_time/tcg_time/ as the profiler only works in a TCG mode.
This also fixes the compile error.

This changes profile_getclock() to return nanoseconds rather than
CPU ticks as the "profile" HMP command prints seconds and there is no
platform-independent way to get ticks-per-second rate.
Since TCG is quite slow and get_clock() returns nanoseconds (fine
enough), this should not affect precision much.

This removes unused qemu_time_start and tlb_flush_time.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Message-Id: <1426478258-29961-1-git-send-email-aik@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-18 12:07:34 +01:00
Max Reitz 3f4726596d nbd: Set block size to BDRV_SECTOR_SIZE
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <1424887718-10800-13-git-send-email-mreitz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-18 12:07:01 +01:00
Max Reitz ac97393dc7 nbd: Fix potential signed overflow issues
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <1424887718-10800-11-git-send-email-mreitz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-18 12:06:56 +01:00
Max Reitz 98f44bbe70 nbd: Handle blk_getlength() failure
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <1424887718-10800-9-git-send-email-mreitz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-18 12:06:50 +01:00
Peter Maydell d8e33fc980 migration/next for 20150317
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20150317' into staging

migration/next for 20150317

# gpg: Signature made Tue Mar 17 14:21:14 2015 GMT using RSA key ID 5872D723
# gpg: Can't check signature: public key not found

* remotes/juanquintela/tags/migration/20150317:
  migration: Expose 'cancelling' status to user
  migration: Convert 'status' of MigrationInfo to use an enum type
  hmp: Rename 'MigrationStatus' to 'HMPMigrationStatus'
  migration: Rename abbreviated macro MIG_STATE_* to MIGRATION_STATUS_*
  migration: Remove unused functions
  arch_init: Count the total number of pages by using helper function
  migrate_incoming: Cleanup/clarify error messages
  Warn against the use of the string as uri parameter to migrate-incoming
  migrate_incoming: use hmp_handle_error
  migration: Fix remaining 32 bit compiler errors
  migration: Fix some 32 bit compiler errors
  migration/rdma: clean up qemu_rdma_dest_init a bit
  migration: Avoid qerror_report_err() outside QMP command handlers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-17 17:11:33 +00:00
Thomas Huth 21cb4924f7 migration: Remove unused functions
migrate_rdma_pin_all() and qsb_clone() are completely unused and thus
can be deleted.

Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Cc: Juan Quintela <quintela@redhat.com>
Cc: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-17 15:20:37 +01:00
Andreas Färber a01ff75fcd qom: Implement info qom-tree HMP command
To complement qdev's bus-oriented info qtree, info qom-tree
prints a hierarchical view of the QOM composition tree.

By default, the machine composition tree is shown. This can be overriden
by supplying a path argument, such as "info qom-tree /".

Tested-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2015-03-17 14:31:21 +01:00
Markus Armbruster f4bbaaf584 usb: Propagate errors through usb_register_companion()
This loses the messages explaining the error printed with
error_printf_unless_qmp().  The next commit will make up for the loss.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-03-17 14:11:42 +01:00
Peter Maydell 3521f76706 Block patches for 2.3-rc0
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block patches for 2.3-rc0

# gpg: Signature made Mon Mar 16 16:11:55 2015 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  block/vpc: remove disabled code from get_sector_offset
  block/vpc: rename footer->size -> footer->current_size
  block/vpc: make calculate_geometry spec conform
  vpc: Ignore geometry for large images
  block/vpc: optimize vpc_co_get_block_status
  block: Drop bdrv_find
  blockdev: Convert bdrv_find to blk_by_name
  migration: Convert bdrv_find to blk_by_name
  monitor: Convert bdrv_find to blk_by_name
  iotests: Test non-self-referential qcow2 refblocks
  iotests: Add tests for refcount table growth
  qcow2: Respect new_block in alloc_refcount_block()
  qemu-img: Avoid qerror_report_err() outside QMP handlers, again
  block: Fix block-set-write-threshold not to use funky error class
  block: Deprecate QCOW/QCOW2 encryption
  qemu-img: Fix convert, amend error messages for unknown options
  iotests: Update 051's reference output

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-16 19:19:04 +00:00
Fam Zheng d51a2427f6 block: Drop bdrv_find
All callers are converted, so drop it.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1425296209-1476-5-git-send-email-famz@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2015-03-16 12:10:30 -04:00
Alexander Graf 9850c6047b migration: Allow to suppress vmdesc submission
We now always send a JSON blob describing the migration file format as part
of the migration stream. However, some tools built around QEMU have proven
to stumble over this.

This patch gives the user the chance to disable said self-describing part of
the migration stream. To disable vmdesc submission, just add

  -machine suppress-vmdesc=on

to your QEMU command line.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-03-16 14:35:20 +01:00
Juan Quintela 6e1dea46b8 ram: make all save_page functions take a uint64_t parameter
It used to be an int, but then we can't pass directly the
bytes_transferred parameter, that would happen later in the series.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
2015-03-16 14:32:47 +01:00
Peter Maydell 2dfe7d07e2 Final batch of s390x enhancements/fixes for 2.3:
- handle TOD clock during migration
 - CPACF key wrap options
 - limit amount of pci device code we build
 - ensure big endian accesses for ccws
 - various fixes and cleanups
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20150316' into staging

Final batch of s390x enhancements/fixes for 2.3:
- handle TOD clock during migration
- CPACF key wrap options
- limit amount of pci device code we build
- ensure big endian accesses for ccws
- various fixes and cleanups

# gpg: Signature made Mon Mar 16 10:01:44 2015 GMT using RSA key ID C6F02FAF
# gpg: Good signature from "Cornelia Huck <huckc@linux.vnet.ibm.com>"
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>"

* remotes/cohuck/tags/s390x-20150316:
  s390x/config: Do not include full pci.mak
  s390x/pci: fix length in sei_nt2 event
  s390x/ipl: remove dead code
  s390x/virtio-bus: Remove unused function s390_virtio_bus_console()
  s390x: CPACF: Handle key wrap machine options
  s390x/kvm: make use of generic vm attribute check
  kvm: encapsulate HAS_DEVICE for vm attrs
  virtio-ccw: assure BE accesses
  s390x/kvm: Guest Migration TOD clock synchronization
  s390x: Replace unchecked qdev_init() by qdev_init_nofail()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-16 11:44:55 +00:00
Dominik Dingel d0a073a186 kvm: encapsulate HAS_DEVICE for vm attrs
More and more virtual machine specifics between kvm and qemu will be
transferred with vm attributes.
So we encapsulate the common logic in a generic function.

Additionally we need only to check during initialization if kvm supports
virtual machine attributes.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Dominik Dingel <dingel@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1426164834-38648-2-git-send-email-jfrei@linux.vnet.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2015-03-16 10:15:45 +01:00
Richard Henderson 42a268c241 tcg: Change translator-side labels to a pointer
This is improved type checking for the translators -- it's no longer
possible to accidentally swap arguments to the branch functions.

Note that the code generating backends still manipulate labels as int.

With notable exceptions, the scope of the change is just a few lines
for each target, so it's not worth building extra machinery to do this
change in per-target increments.

Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Anthony Green <green@moxielogic.com>
Cc: Jia Liu <proljc@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-03-13 12:28:18 -07:00
Peter Maydell dea4635998 misc ui patches, mostly sdl related.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-sdl-20150312-2' into staging

misc ui patches, mostly sdl related.

# gpg: Signature made Thu Mar 12 14:51:07 2015 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-sdl-20150312-2:
  pixman: add a bunch of PIXMAN_BE_* defines for 32bpp
  Allow the use of X11 from a non standard location.
  configure: opengl overhaul
  sdl: Fix crash when calling sdl_switch() with NULL surface
  sdl: Refresh debug statements

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-13 14:03:31 +00:00
Paolo Bonzini 2120465fbb queue: fix QSLIST_INSERT_HEAD_ATOMIC race
There is a not-so-subtle race in QSLIST_INSERT_HEAD_ATOMIC.

Because atomic_cmpxchg returns the old value instead of a success flag,
QSLIST_INSERT_HEAD_ATOMIC was checking for success by comparing against
the second argument to atomic_cmpxchg.  Unfortunately, this only works
if the second argument is a local or thread-local variable.

If it is in memory, it can be subject to common subexpression elimination
(and then everything's fine) or reloaded after the atomic_cmpxchg,
depending on the compiler's whims.  If the latter happens, the race can
happen.  A thread can sneak in, doing something on elm->field.sle_next
after the atomic_cmpxchg and before the comparison.  This causes a wrong
failure, and then two threads are using "elm" at the same time.  In the
case discovered by Christian, the sequence was likely something like this:

    thread 1                   | thread 2
    QSLIST_INSERT_HEAD_ATOMIC  |
      atomic_cmpxchg succeeds  |
      elm added to list        |
                               | steal release_pool
                               | QSLIST_REMOVE_HEAD
                               | elm removed from list
                               | ...
                               | QSLIST_INSERT_HEAD_ATOMIC
                               |   (overwrites sle_next)
      spurious failure         |
      atomic_cmpxchg succeeds  |
      elm added to list again  |
                               |
    steal release_pool         |
    QSLIST_REMOVE_HEAD         |
    elm removed again          |

The last three steps could be done by a third thread as well.
A reproducer that failed in a matter of seconds is as follows:

- the guest has 32 VCPUs on a 28 core host (hyperthreading was enabled),
  memory was 16G just to err on the safe side (the host has 64G, but hey
  at least you need no s390)

- the guest has 24 null-aio virtio-blk devices using dataplane
  (-object iothread,id=ioN -drive if=none,id=blkN,driver=null-aio,size=500G
  -device virtio-blk-pci,iothread=ioN,drive=blkN)

- the guest also has a single network interface.  It's only doing loopback
  tests so slirp vs. tap and the model doesn't matter.

- the guest is running fio with the following script:

     [global]
     rw=randread
     blocksize=16k
     ioengine=libaio
     runtime=10m
     buffered=0
     fallocate=none
     time_based
     iodepth=32

     [virtio1a]
     filename=/dev/block/252\:16

     [virtio1b]
     filename=/dev/block/252\:16

     ...

     [virtio24a]
     filename=/dev/block/252\:384

     [virtio24b]
     filename=/dev/block/252\:384

     [listen1]
     protocol=tcp
     ioengine=net
     port=12345
     listen
     rw=read
     bs=4k
     size=1000g

     [connect1]
     protocol=tcp
     hostname=localhost
     ioengine=net
     port=12345
     protocol=tcp
     rw=write
     startdelay=1
     size=1000g

     ...

     [listen8]
     protocol=tcp
     ioengine=net
     port=12352
     listen
     rw=read
     bs=4k
     size=1000g

     [connect8]
     protocol=tcp
     hostname=localhost
     ioengine=net
     port=12352
     rw=write
     startdelay=1
     size=1000g

Moral of the story: I should refrain from writing more clever stuff.
At least it looks like it is not too clever to be undebuggable.

Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1426002357-6889-1-git-send-email-pbonzini@redhat.com
Fixes: c740ad92d0
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-03-12 17:41:23 +00:00
Gerd Hoffmann 43db7c3d48 pixman: add a bunch of PIXMAN_BE_* defines for 32bpp
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2015-03-12 15:50:11 +01:00
Gerd Hoffmann da076ffed6 configure: opengl overhaul
Rename config option from "glx" to "opengl", glx will not be the only
option for opengl in near future.  Also switch over to pkg-config for
opengl support detection.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2015-03-12 15:49:57 +01:00
Peter Maydell a195fdd028 misc fixes and cleanups
A bunch of fixes all over the place, some of the
 bugs fixed are actually regressions.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

misc fixes and cleanups

A bunch of fixes all over the place, some of the
bugs fixed are actually regressions.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Wed Mar 11 17:48:30 2015 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream: (25 commits)
  virtio-scsi: remove empty wrapper for cmd
  virtio-scsi: clean out duplicate cdb field
  virtio-scsi: fix cdb/sense size
  uapi/virtio_scsi: allow overriding CDB/SENSE size
  virtio-scsi: drop duplicate CDB/SENSE SIZE
  exec: don't include hw/boards for linux-user
  acpi: specify format for build_append_namestring
  MAINTAINERS: drop aliguori@amazon.com
  tpm: Move memory subregion function into realize function
  virtio-pci: Convert to realize()
  pci: Convert pci_nic_init() to Error to avoid qdev_init()
  machine: query mem-merge machine property
  machine: query dump-guest-core machine property
  hw/boards: make it safe to include for linux-user
  machine: query phandle-start machine property
  machine: query kvm-shadow-mem machine property
  kvm: add machine state to kvm_arch_init
  machine: query kernel-irqchip property
  machine: allowed/required kernel-irqchip support
  machine: replace qemu opts with iommu property
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-03-12 09:13:07 +00:00
Michael S. Tsirkin 18bf9e2f37 virtio-scsi: remove empty wrapper for cmd
The anonymous struct only has a single field now, drop the wrapper
structure.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-11 18:24:30 +01:00
Michael S. Tsirkin bb72463bc8 virtio-scsi: clean out duplicate cdb field
cdb is now part of cmd, drop it from req.
There's also nothing to check using build assert now.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-11 18:24:30 +01:00
Michael S. Tsirkin 03325525c3 virtio-scsi: fix cdb/sense size
Commit "virtio-scsi: use standard-headers" added
cdb and sense into req/rep structures, which
breaks uses of sizeof for these structures,
since qemu adds its own arrays on top.

To fix, redefine CDB/sense field size to 0.

Reported-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-11 18:24:29 +01:00
Michael S. Tsirkin 2106ba3010 uapi/virtio_scsi: allow overriding CDB/SENSE size
QEMU wants to use virtio scsi structures with
a different VIRTIO_SCSI_CDB_SIZE/VIRTIO_SCSI_SENSE_SIZE,
let's add ifdefs to allow overriding them.

Keep the old defines under new names:
VIRTIO_SCSI_CDB_DEFAULT_SIZE/VIRTIO_SCSI_SENSE_DEFAULT_SIZE,
since that's what these values really are:
defaults for cdb/sense size fields.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-11 18:24:29 +01:00
Michael S. Tsirkin e7cc8ba22e virtio-scsi: drop duplicate CDB/SENSE SIZE
This is duplicated from the kernel header,
drop our copy.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-11 18:24:29 +01:00
Michael S. Tsirkin 4485bd269c exec: don't include hw/boards for linux-user
As noted by Andreas, hw/boards.h shouldn't be used outside softmmu code.
Include it conditionally, and drop the (now unnecessary) ifdef guards in
hw/boards.h

Reported-by: Andreas Färber <afaerber@suse.de>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
2015-03-11 18:24:29 +01:00
Marcel Apfelbaum 75cc7f0183 machine: query mem-merge machine property
Running
    qemu-bin ... -machine pc,mem-merge=on
leads to crash:
    x86_64-softmmu/qemu-system-x86_64 -machine pc,dump-guest-core=on
    qemu-system-x86_64: qemu/util/qemu-option.c:387: qemu_opt_get_bool_helper:
    Assertion `opt->desc && opt->desc->type == QEMU_OPT_BOOL' failed.  Aborted
    (core dumped)

This happens because the commit e79d5a6 ("machine: remove qemu_machine_opts
global list") removed the global option descriptions and moved them to
MachineState's QOM properties.

Fix this by querying machine properties through designated wrappers.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-11 18:19:22 +01:00
Marcel Apfelbaum 47c8ca533e machine: query dump-guest-core machine property
Running
    qemu-bin ... -machine pc,dump-guest-core=on
leads to crash:
    x86_64-softmmu/qemu-system-x86_64 -machine pc,dump-guest-core=on
    qemu-system-x86_64: qemu/util/qemu-option.c:387: qemu_opt_get_bool_helper:
    Assertion `opt->desc && opt->desc->type == QEMU_OPT_BOOL' failed.  Aborted
    (core dumped)

This happens because the commit e79d5a6 ("machine: remove qemu_machine_opts
global list") removed the global option descriptions and moved them to
MachineState's QOM properties.

Fix this by querying machine properties through designated wrappers.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-11 18:17:54 +01:00
Michael S. Tsirkin 66bd56694b hw/boards: make it safe to include for linux-user
Make it safe to include hw/boards.h in exec.c
for linux-user configurations.
We don't need any of its contents though.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-03-11 18:17:54 +01:00
Marcel Apfelbaum 6cabe7fa6d machine: query phandle-start machine property
Commit e79d5a6 ("machine: remove qemu_machine_opts global list") removed
the global option descriptions and moved them to MachineState's QOM
properties.

Query phandle-start by accessing machine properties through designated
wrappers.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-11 18:17:11 +01:00
Marcel Apfelbaum 4689b77bda machine: query kvm-shadow-mem machine property
Commit e79d5a6 ("machine: remove qemu_machine_opts global list") removed
the global option descriptions and moved them to MachineState's QOM
properties.

Query kvm-shadow-mem by accessing machine properties through designated
wrappers.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2015-03-11 18:16:25 +01:00