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935 commits

Author SHA1 Message Date
Wenchao Xia a89d89d3e6 snapshot: distinguish id and name in snapshot delete
Snapshot creation actually already distinguish id and name since it take
a structured parameter *sn, but delete can't. Later an accurate delete
is needed in qmp_transaction abort and blockdev-snapshot-delete-sync,
so change its prototype. Also *errp is added to tip error, but return
value is kepted to let caller check what kind of error happens. Existing
caller for it are savevm, delvm and qemu-img, they are not impacted by
introducing a new function bdrv_snapshot_delete_by_id_or_name(), which
check the return value and do the operation again.

Before this patch:
  For qcow2, it search id first then name to find the one to delete.
  For rbd, it search name.
  For sheepdog, it does nothing.

After this patch:
  For qcow2, logic is the same by call it twice in caller.
  For rbd, it always fails in delete with id, but still search for name
in second try, no change to user.

Some code for *errp is based on Pavel's patch.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-12 10:12:47 +02:00
Wenchao Xia 2ea1dd758c snapshot: new function bdrv_snapshot_find_by_id_and_name()
To make it clear about id and name in searching, add this API
to distinguish them. Caller can choose to search by id or name,
*errp will be set only for exception.

Some code are modified based on Pavel's patch.

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-12 10:12:47 +02:00
Max Reitz 6f176b48f9 block: Image file option amendment
This patch adds the "amend" option to qemu-img which allows changing
image options on existing image files. It also adds the generic bdrv
implementation which is basically just a wrapper for the image format
specific function.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-12 10:12:46 +02:00
Paolo Bonzini 5accc8408f scsi: prefer UUID to VM name for the initiator name
The UUID is unique even across multiple hosts, thus it is
better than a VM name even if it is less user-friendly.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-09-12 08:46:21 +02:00
Anthony Liguori 2d1fe1873a ARM queue:
* aarch64 preparation patchset (excluding the defconfigs, so this
    doesn't actually enable the new targets yet)
  * minor bugfixes and cleanups
  * disable "-cpu any" in system emulation mode
  * fix ARMv7M stack alignment on reset
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Merge remote-tracking branch 'pmaydell/tags/pull-target-arm-20130910' into staging

ARM queue:
 * aarch64 preparation patchset (excluding the defconfigs, so this
   doesn't actually enable the new targets yet)
 * minor bugfixes and cleanups
 * disable "-cpu any" in system emulation mode
 * fix ARMv7M stack alignment on reset

# gpg: Signature made Tue 10 Sep 2013 01:46:11 PM CDT using RSA key ID 14360CDE
# gpg: Can't check signature: public key not found

# By Alexander Graf (13) and others
# Via Peter Maydell
* pmaydell/tags/pull-target-arm-20130910: (28 commits)
  configure: Add handling code for AArch64 targets
  linux-user: Add AArch64 support
  linux-user: Allow targets to specify a minimum uname release
  linux-user: Add AArch64 termbits.h definitions
  linux-user: Implement cpu_set_tls() and cpu_clone_regs() for AArch64
  linux-user: Make sure NWFPE code is 32 bit ARM only
  linux-user: Add signal handling for AArch64
  linux-user: Fix up AArch64 syscall handlers
  linux-user: Add syscall number definitions for AArch64
  linux-user: Add cpu loop for AArch64
  linux-user: Don't treat AArch64 cpu names specially
  target-arm: Add AArch64 gdbstub support
  target-arm: Add AArch64 translation stub
  target-arm: Prepare translation for AArch64 code
  target-arm: Disable 32 bit CPUs in 64 bit linux-user builds
  target-arm: Add new AArch64CPUInfo base class and subclasses
  target-arm: Pass DisasContext* to gen_set_pc_im()
  target-arm: Fix target_ulong/uint32_t confusions
  target-arm: Export cpu_env
  target-arm: Extract the disas struct to a header file
  ...

Message-id: 1378839142-7726-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-11 14:46:52 -05:00
Anthony Liguori a640f07c0d Merge remote-tracking branch 'kraxel/usb.89' into staging
# By Gerd Hoffmann (2) and Miroslav Rezanina (2)
# Via Gerd Hoffmann
* kraxel/usb.89:
  ehci: save device pointer in EHCIState
  Remove dev-bluetooth.c dependency from vl.c
  Preparation for usb-bt-dongle conditional build
  usb: sanity check setup_index+setup_len in post_load

Message-id: 1378806073-25197-1-git-send-email-kraxel@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-11 14:46:21 -05:00
Anthony Liguori f69f0bcac9 Merge remote-tracking branch 'mdroth/qga-pull-2013-9-9' into staging
# By Tomoki Sekiyama (10) and Paul Burton (1)
# Via Michael Roth
* mdroth/qga-pull-2013-9-9:
  QMP/qemu-ga-client: Make timeout longer for guest-fsfreeze-freeze command
  qemu-ga: Install Windows VSS provider on `qemu-ga -s install'
  qemu-ga: Call Windows VSS requester in fsfreeze command handler
  qemu-ga: Add Windows VSS provider and requester as DLL
  error: Add error_set_win32 and error_setg_win32
  qemu-ga: Add configure options to specify path to Windows/VSS SDK
  Add a script to extract VSS SDK headers on POSIX system
  checkpatch.pl: Check .cpp files
  Add c++ keywords to QAPI helper script
  configure: Support configuring C++ compiler
  mips_malta: support up to 2GiB RAM

Message-id: 1378755701-2051-1-git-send-email-mdroth@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-11 14:46:08 -05:00
Anthony Liguori 97fdb9410b Merge remote-tracking branch 'sstabellini/xen-2013-09-09' into staging
# By Anthony PERARD
# Via Stefano Stabellini
* sstabellini/xen-2013-09-09:
  pc_q35: Initialize Xen.
  pc: Initializing ram_memory under Xen.

Message-id: alpine.DEB.2.02.1309091718030.6397@kaball.uk.xensource.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-11 14:45:57 -05:00
Anthony Liguori 964737ea19 Merge remote-tracking branch 'stefanha/block' into staging
# By Paolo Bonzini (21) and others
# Via Stefan Hajnoczi
* stefanha/block: (42 commits)
  qemu-iotests: Fixed test case 026
  qemu-iotests: Whitespace cleanup
  dataplane: Fix startup race.
  block: look for zero blocks in bs->file
  block: add default get_block_status implementation for protocols
  raw-posix: report unwritten extents as zero
  raw-posix: return get_block_status data and flags
  docs, qapi: document qemu-img map
  qemu-img: add a "map" subcommand
  block: return BDRV_BLOCK_ZERO past end of backing file
  block: use bdrv_has_zero_init to return BDRV_BLOCK_ZERO
  block: return get_block_status data and flags for formats
  block: define get_block_status return value
  block: introduce bdrv_get_block_status API
  block: make bdrv_has_zero_init return false for copy-on-write-images
  qemu-img: always probe the input image for allocated sectors
  block: expect errors from bdrv_co_is_allocated
  block: remove bdrv_is_allocated_above/bdrv_co_is_allocated_above distinction
  block: do not use ->total_sectors in bdrv_co_is_allocated
  block: make bdrv_co_is_allocated static
  ...

Message-id: 1378481953-23099-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-11 14:45:37 -05:00
Peter Maydell 4d017979aa abitypes.h: Remove incorrect ARM ABI_LLONG_ALIGNMENT
The ARM EABI specifies that 64 bit integers should be
8 aligned; remove our incorrect setting of 4 alignment.
This has no actual effect since it only set the alignment
for the 'abi_ullong' and 'abi_llong' types, which are used
only inside code which is MIPS-specific, but it will
avoid problems later if we use the types elsewhere.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-09-10 19:09:33 +01:00
Miroslav Rezanina 615fe4de4b Remove dev-bluetooth.c dependency from vl.c
Use usb_legacy_register handling to create bt-dongle device and remove code
dependency from vl.c so CONFIG_USB_BLUETOOTH can be disabled.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-09-10 11:14:42 +02:00
Miroslav Rezanina 644e1a8a34 Preparation for usb-bt-dongle conditional build
To allow disable usb-bt-dongle device using CONFIG_BLUETOOTH option, some of
functions in vl.c file has to be made accessible in dev-bluetooth.c. This is
pure code moving.

Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-09-10 11:14:41 +02:00
Tomoki Sekiyama 20840d4cfe error: Add error_set_win32 and error_setg_win32
These functions help maintaining homogeneous formatting of error messages
with Windows error code and description (generated by
g_win32_error_message()).

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-09-09 14:17:57 -05:00
Anthony PERARD 04d7bad8a4 pc: Initializing ram_memory under Xen.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
CC: qemu-stable@nongnu.org
2013-09-09 16:22:19 +00:00
Vincenzo Maffione e9845f0985 e1000: add interrupt mitigation support
This patch partially implements the e1000 interrupt mitigation mechanisms.
Using a single QEMUTimer, it emulates the ITR register (which is the newer
mitigation register, recommended by Intel) and approximately emulates
RADV and TADV registers. TIDV and RDTR register functionalities are not
emulated (RDTR is only used to validate RADV, according to the e1000 specs).

RADV, TADV, TIDV and RDTR registers make up the older e1000 mitigation
mechanism and would need a timer each to be completely emulated. However,
a single timer has been used in order to reach a good compromise between
emulation accuracy and simplicity/efficiency.

The implemented mechanism can be enabled/disabled specifying the command
line e1000-specific boolean parameter "mitigation", e.g.

    qemu-system-x86_64 -device e1000,mitigation=on,... ...

For more information, see the Software developer's manual at
http://download.intel.com/design/network/manuals/8254x_GBe_SDM.pdf.

Interrupt mitigation boosts performance when the guest suffers from
an high interrupt rate (i.e. receiving short UDP packets at high packet
rate). For some numerical results see the following link
http://info.iet.unipi.it/~luigi/papers/20130520-rizzo-vm.pdf

Signed-off-by: Vincenzo Maffione <v.maffione@gmail.com>
Reviewed-by: Andreas Färber <afaerber@suse.de> (for pc-* machines)
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 17:25:52 +02:00
Jan Kiszka 067404be62 net: Rename send_queue to incoming_queue
Each networking client has a queue for packets that could not yet be
delivered to that client. Calling this queue "send_queue" is highly
confusing as it has nothing to to with packets send from this client but
to it. Avoid this confusing by renaming it to "incoming_queue".

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 17:01:26 +02:00
Paolo Bonzini 4333bb7140 block: define get_block_status return value
Define the return value of get_block_status.  Bits 0, 1, 2 and 9-62
are valid; bit 63 (the sign bit) is reserved for errors.  Bits 3-8
are left for future extensions.

The return code is compatible with the old is_allocated API: if a driver
only returns 0 or 1 (aka BDRV_BLOCK_DATA) like is_allocated used to,
clients of is_allocated will not have any change in behavior.  Still,
we will return more precise information in the next patches and the
new definition of bdrv_is_allocated is already prepared for this.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 15:25:09 +02:00
Paolo Bonzini b6b8a33354 block: introduce bdrv_get_block_status API
For now, bdrv_get_block_status is just another name for bdrv_is_allocated.
The next patches will add more flags.

This also touches all block drivers with a mostly mechanical rename.  The
sole exception is cow; because it calls cow_co_is_allocated from the read
code, we keep that function and make cow_co_get_block_status a wrapper.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 15:25:09 +02:00
Paolo Bonzini 4f5786376e block: remove bdrv_is_allocated_above/bdrv_co_is_allocated_above distinction
Now that bdrv_is_allocated detects coroutine context, the two can
use the same code.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 15:25:09 +02:00
Paolo Bonzini bdad13b9de block: make bdrv_co_is_allocated static
bdrv_is_allocated can detect coroutine context and go through a fast
path, similar to other block layer functions.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 15:25:08 +02:00
Fam Zheng 4f6fd3491c block: make bdrv_delete() static
Manage BlockDriverState lifecycle with refcnt, so bdrv_delete() is no
longer public and should be called by bdrv_unref() if refcnt is
decreased to 0.

This is an identical change because effectively, there's no multiple
reference of BDS now: no caller of bdrv_ref() yet, only bdrv_new() sets
bs->refcnt to 1, so all bdrv_unref() now actually delete the BDS.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 15:25:08 +02:00
Fam Zheng 9fcb025146 block: implement reference count for BlockDriverState
Introduce bdrv_ref/bdrv_unref to manage the lifecycle of
BlockDriverState. They are unused for now but will used to replace
bdrv_delete() later.

Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 15:25:08 +02:00
Benoît Canet cc0681c454 block: Enable the new throttling code in the block layer.
Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 15:25:07 +02:00
Benoît Canet 5ddfffbdc5 throttle: Add a new throttling API implementing continuous leaky bucket.
Implement the continuous leaky bucket algorithm devised on IRC as a separate
module.

Signed-off-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-09-06 15:25:07 +02:00
Jan Kiszka 3bb28b7208 memory: Provide separate handling of unassigned io ports accesses
Accesses to unassigned io ports shall return -1 on read and be ignored
on write. Ensure these properties via dedicated ops, decoupling us from
the memory core's handling of unassigned accesses.

Cc: qemu-stable@nongnu.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-09-05 18:11:43 +02:00
Anthony Liguori aaa6a40194 QOM CPUState refactorings / X86CPU
* Conversion of global CPU list to QTAILQ - preparing for CPU hot-unplug
 * Document X86CPU magic numbers for CPUID cache info
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Merge remote-tracking branch 'afaerber/tags/qom-cpu-for-anthony' into staging

QOM CPUState refactorings / X86CPU

* Conversion of global CPU list to QTAILQ - preparing for CPU hot-unplug
* Document X86CPU magic numbers for CPUID cache info

# gpg: Signature made Tue 03 Sep 2013 10:59:22 AM CDT using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found

# By Andreas Färber (3) and Eduardo Habkost (1)
# Via Andreas Färber
* afaerber/tags/qom-cpu-for-anthony:
  target-i386: Use #defines instead of magic numbers for CPUID cache info
  cpu: Replace qemu_for_each_cpu()
  cpu: Use QTAILQ for CPU list
  a15mpcore: Use qemu_get_cpu() for generic timers
2013-09-03 12:33:32 -05:00
Anthony Liguori bb7d4d82b6 Merge remote-tracking branch 'kwolf/for-anthony' into staging
# By Max Reitz (11) and others
# Via Kevin Wolf
* kwolf/for-anthony: (26 commits)
  qemu-iotests: Overlapping cluster allocations
  qcow2_check: Mark image consistent
  qcow2-refcount: Repair shared refcount blocks
  qcow2-refcount: Repair OFLAG_COPIED errors
  qcow2-refcount: Move OFLAG_COPIED checks
  qcow2: Employ metadata overlap checks
  qcow2: Metadata overlap checks
  qcow2: Add corrupt bit
  qemu-iotests: Snapshotting zero clusters
  qcow2-refcount: Snapshot update for zero clusters
  option: Add assigned flag to QEMUOptionParameter
  gluster: Abort on AIO completion failure
  block: Remove old raw driver
  switch raw block driver from "raw.o" to "raw_bsd.o"
  raw_bsd: register bdrv_raw
  raw_bsd: add raw_create_options
  raw_bsd: introduce "special members"
  raw_bsd: add raw_create()
  raw_bsd: emit debug events in bdrv_co_readv() and bdrv_co_writev()
  add skeleton for BSD licensed "raw" BlockDriver
  ...

Message-id: 1378111792-20436-1-git-send-email-kwolf@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-03 12:32:46 -05:00
Anthony Liguori 5a93d5c2ab Merge remote-tracking branch 'mjt/trivial-patches' into staging
# By Stefan Weil (6) and others
# Via Michael Tokarev
* mjt/trivial-patches:
  aio / timers: use g_usleep() not sleep()
  adlib: sort offsets in portio registration
  qmp: fix integer usage in examples
  tci: Remove function tcg_out64 (fix broken build)
  target-arm: Report unimplemented opcodes (LOG_UNIMP)
  pflash_cfi02.c: fix debug macro
  configure: Remove unneeded redirections of stderr (pkg-config --exists)
  configure: Remove unneeded redirections of stderr (pkg-config --cflags, --libs)
  configure: Don't write .pyc files by default (python -B)
  curl: qemu_bh_new() can never return NULL
  slirp/arp_table.c: Avoid shifting into sign bit of signed integers
  configure: disable clang -Wstring-plus-int warning
  rdma: silly ipv6 bugfix
  misc: Fix some typos in names and comments
  slirp: Port redirection option behave differently on Linux and Windows

Message-id: 1378119695-14568-1-git-send-email-mjt@msgid.tls.msk.ru
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-03 12:31:44 -05:00
Anthony Liguori 9889e04ac1 pc,pci,virtio fixes and cleanups
This includes pc and pci cleanups and enhancements,
 and a virtio bugfix for level interrupts.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pc,pci,virtio fixes and cleanups

This includes pc and pci cleanups and enhancements,
and a virtio bugfix for level interrupts.

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

# gpg: Signature made Sun 01 Sep 2013 03:15:36 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Michael S. Tsirkin (3) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  virtio_pci: fix level interrupts with irqfd
  pc: reduce duplication, fix PIIX descriptions
  hw: Clean up bogus default boot order
  pci: add config space access traces
  pc: fix regression for 64 bit PCI memory
  pci: Introduce helper to retrieve a PCI device's DMA address space

Message-id: 1378023590-11109-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-03 12:31:07 -05:00
Anthony Liguori 5cff81f098 QOM device refactorings
* Fix QOM and ISA documentation errors
 * Extend object_initialize() et al. to check the instance size
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Merge remote-tracking branch 'afaerber/tags/qom-devices-for-anthony' into staging

QOM device refactorings

* Fix QOM and ISA documentation errors
* Extend object_initialize() et al. to check the instance size

# gpg: Signature made Fri 30 Aug 2013 02:19:48 PM CDT using RSA key ID 3E7E013F
# gpg: Can't check signature: public key not found

# By Andreas Färber (14) and others
# Via Andreas Färber
* afaerber/tags/qom-devices-for-anthony:
  isa: Fix documentation of isa_register_portio_list()
  qom: Assert instance size in object_initialize_with_type()
  qom: Pass available size to object_initialize()
  qdev: Pass size to qbus_create_inplace()
  virtio-mmio: Pass size to virtio_mmio_bus_new()
  virtio-ccw: Pass size to virtio_ccw_bus_new()
  s390-virtio-bus: Pass size to virtio_s390_bus_new()
  virtio-pci: Pass size to virtio_pci_bus_new()
  usb: Pass size to usb_bus_new()
  scsi: Pass size to scsi_bus_new()
  pci: Pass size to pci_bus_new_inplace()
  ide: Pass size to ide_bus_new()
  ipack: Pass size to ipack_bus_new_inplace()
  intel-hda: Pass size to hda_codec_bus_init()
  qom: Fix object_initialize_with_type() argument name in documentation
  virtio: Remove unnecessary OBJECT() casts
  object: Fix typo in qom/object.h
2013-09-03 12:30:51 -05:00
Andreas Färber 38fcbd3f08 cpu: Replace qemu_for_each_cpu()
It was introduced to loop over CPUs from target-independent code, but
since commit 182735efaf target-independent
CPUState is used.

A loop can be considered more efficient than function calls in a loop,
and CPU_FOREACH() hides implementation details just as well, so use that
instead.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-09-03 12:25:55 +02:00
Andreas Färber bdc44640cb cpu: Use QTAILQ for CPU list
Introduce CPU_FOREACH(), CPU_FOREACH_SAFE() and CPU_NEXT() shorthand
macros.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-09-03 12:25:55 +02:00
Aurelien Jarno 545825d4cd Merge branch 'tcg-next' of git://github.com/rth7680/qemu
* 'tcg-next' of git://github.com/rth7680/qemu: (29 commits)
  tcg-i386: Make use of zero-extended memory helper routines
  tcg: Introduce zero and sign-extended versions of load helpers
  exec: Split softmmu_defs.h
  target: Include softmmu_exec.h where forgotten
  exec: Rename USUFFIX to LSUFFIX
  tcg-i386: Don't perform GETPC adjustment in TCG code
  exec: Reorganize the GETRA/GETPC macros
  configure: Allow x32 as a host
  tcg-i386: Adjust tcg_out_tlb_load for x32
  tcg-i386: Use intptr_t appropriately
  tcg: Fix jit debug for x32
  tcg: Use appropriate types in tcg_reg_alloc_call
  tcg: Change tcg_out_ld/st offset to intptr_t
  tcg: Change tcg_gen_exit_tb argument to uintptr_t
  tcg: Use uintptr_t in TCGHelperInfo
  tcg: Change relocation offsets to intptr_t
  tcg: Change memory offsets to intptr_t
  tcg: Change frame pointer offsets to intptr_t
  tcg: Define TCG_ptr properly
  tcg: Define TCG_TYPE_PTR properly
  ...
2013-09-03 01:35:43 +02:00
Richard Henderson c8f94df593 tcg: Introduce zero and sign-extended versions of load helpers
Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:31 -07:00
Richard Henderson e58eb53413 exec: Split softmmu_defs.h
The _cmmu helpers can be moved to exec-all.h.  The helpers that are
used from TCG will shortly need access to tcg_target_long so move
their declarations into tcg.h.

This requires minor include adjustments to all TCG backends.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:30 -07:00
Richard Henderson 701e3a5cc0 exec: Rename USUFFIX to LSUFFIX
In a following patch, there will be confusion between multiple "unsigned"
suffixes; rename this one so as to imply "load".

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:30 -07:00
Richard Henderson 0f842f8a24 exec: Reorganize the GETRA/GETPC macros
Always define GETRA; use __builtin_extract_return_addr, rather than
having a special case for s390.  Split GETPC_ADJ out of GETPC; use 2
universally, rather than having a special case for arm.

Rename GETPC_LDST to GETRA_LDST to indicate that it does not
contain the GETPC_ADJ value.  Likewise with GETPC_EXT to GETRA_EXT.

Perform the GETPC_ADJ adjustment inside helper_ret_ld/st.  This will
allow backends to pass along the "true" return address rather than
the massaged GETPC value.  In the meantime, double application of
GETPC_ADJ does not hurt, since the call insn in all ISAs is at least
4 bytes long.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:30 -07:00
Richard Henderson 8cfd04959a tcg: Change tcg_gen_exit_tb argument to uintptr_t
And update all users.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-09-02 09:08:30 -07:00
Max Reitz afa50193cd qcow2-refcount: Repair shared refcount blocks
If the refcount of a refcount block is greater than one, we can at least
try to repair that problem by duplicating the affected block.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-09-02 10:06:59 +02:00
Anton Blanchard 42561bf2e4 pseries: Add H_SET_MODE hcall to change guest exception endianness
H_SET_MODE is used for controlling various partition settings. One
of these settings is the endianness a guest takes its exceptions in.

Signed-off-by: Anton Blanchard <anton@samba.org>
[agraf: fix whitespace]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-09-02 10:06:42 +02:00
Alexey Kardashevskiy f1c2dc7c86 spapr-pci: rework MSI/MSIX
On the sPAPR platform a guest allocates MSI/MSIX vectors via RTAS
hypercalls which return global IRQ numbers to a guest so it only
operates with those and never touches MSIMessage.

Therefore MSIMessage handling is completely hidden in QEMU.

Previously every sPAPR PCI host bridge implemented its own MSI window
to catch msi_notify()/msix_notify() calls from QEMU devices (virtio-pci
or vfio) and route them to the guest via qemu_pulse_irq().
MSIMessage used to be encoded as:
	.addr - address within the PHB MSI window;
	.data - the device index on PHB plus vector number.
The MSI MR write function translated this MSIMessage to a global IRQ
number and called qemu_pulse_irq().

However the total number of IRQs is not really big (at the moment it is
1024 IRQs starting from 4096) and even 16bit data field of MSIMessage
seems to be enough to store an IRQ number there.

This simplifies MSI handling in sPAPR PHB. Specifically, this does:
1. remove a MSI window from a PHB;
2. add a single memory region for all MSIs to sPAPREnvironment
and spapr_pci_msi_init() to initialize it;
3. encode MSIMessage as:
    * .addr - a fixed address of SPAPR_PCI_MSI_WINDOW==0x40000000000ULL;
    * .data as an IRQ number.
4. change IRQ allocator to align first IRQ number in a block for MSI.
MSI uses lower bits to specify the vector number so the first IRQ has to
be aligned. MSIX does not need any special allocator though.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-09-02 10:06:42 +02:00
Stefan Weil 4c293dc6e4 misc: Fix some typos in names and comments
Most typos were found using a modified version of codespell:

accross -> across
issueing -> issuing
TICNT_THRESHHOLD -> TICNT_THRESHOLD
bandwith -> bandwidth
VCARD_7816_PROPIETARY -> VCARD_7816_PROPRIETARY
occured -> occurred
gaurantee -> guarantee
sofware -> software

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-09-01 18:59:24 +04:00
Michael S. Tsirkin a0dba644c1 pc: reduce duplication, fix PIIX descriptions
We have a lot of code duplication between machine types,
this increases with each new machine type
and each new field.

This has already introduced a minor bug: description
for pc-1.3 says "Standard PC" while description for
pc-1.4 is "Standard PC (i440FX + PIIX, 1996)"
which makes you think 1.3 is somehow more standard,
or newer, while in fact it's a revision of the same PC.

This patch addresses this issue by using macros, along
the lines used by PC_COMPAT_X_X - only for
non-property options.

The approach can extend to non-PC machine types.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-09-01 10:43:25 +03:00
Hervé Poussineau 520902a656 isa: Fix documentation of isa_register_portio_list()
Commit b40acf9 (ioport: Switch dispatching to memory core layer,
2013-06-24) removed all instances of old_portio.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 21:15:44 +02:00
Andreas Färber 5b9237f67c qom: Assert instance size in object_initialize_with_type()
This catches objects initializing beyond allocated memory, e.g.,
when subtypes get extended with instance state of their own.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 21:15:44 +02:00
Andreas Färber 213f0c4f61 qom: Pass available size to object_initialize()
To be passed on to object_initialize_with_type().

Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> (virtio-ccw)
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 21:15:44 +02:00
Andreas Färber fb17dfe057 qdev: Pass size to qbus_create_inplace()
To be passed to object_initialize().

Since commit 39355c3826 the argument is
void*, so drop some superfluous (BusState *) casts or direct parent
field usages.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 21:15:35 +02:00
Andreas Färber c889b3a55d usb: Pass size to usb_bus_new()
To be passed to qbus_create_inplace().

Use DEVICE() cast to avoid a direct parent field access.

Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 20:14:39 +02:00
Andreas Färber b1187b51ff scsi: Pass size to scsi_bus_new()
To be passed to qbus_create_inplace().

Use DEVICE() casts instead of direct parent field access.

Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 20:14:39 +02:00
Andreas Färber dd301ca607 pci: Pass size to pci_bus_new_inplace()
To be passed to qbus_create_inplace().

Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 20:14:39 +02:00
Andreas Färber 53caad9a31 qom: Fix object_initialize_with_type() argument name in documentation
@obj -> @data.

Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 20:14:38 +02:00
Peter Chubb 70392912ed object: Fix typo in qom/object.h
There's been a cut-and-paste error, it looks like, in the documentation
in qom/object.h.

Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 20:14:37 +02:00
Max Reitz a40f1c2add qcow2: Metadata overlap checks
Two new functions are added; the first one checks a given range in the
image file for overlaps with metadata (main header, L1 tables, L2
tables, refcount table and blocks).

The second one should be used immediately before writing to the image
file as it calls the first function and, upon collision, marks the
image as corrupt and makes the BDS unusable, thereby preventing
further access.

Both functions take a bitmask argument specifying the structures which
should be checked for overlaps, making it possible to also check
metadata writes against colliding with other structures.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-08-30 15:48:43 +02:00
Max Reitz d4ca092a42 option: Add assigned flag to QEMUOptionParameter
Adds an "assigned" flag to QEMUOptionParameter which is cleared at the
beginning of parse_option_parameters and set on (successful)
set_option_parameter and set_option_parameter_int.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-08-30 15:28:52 +02:00
Wenchao Xia d2674b2cf7 monitor: avoid use of global *cur_mon in monitor_find_completion()
Parameter *mon is added, and local variable *mon added in previous patch
is removed. The caller readline_completion(), pass rs->mon as value, which
should be initialized in readline_init() called by monitor_init().

Signed-off-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-30 07:41:14 -04:00
Anthony Liguori b5d54bd421 Merge remote-tracking branch 'qemu-kvm/uq/master' into stable-1.5
* qemu-kvm/uq/master:
  kvm-stub: fix compilation
  kvm: shorten the parameter list for get_real_device()
  kvm: i386: fix LAPIC TSC deadline timer save/restore
  kvm-all.c: max_cpus should not exceed KVM vcpu limit
  kvm: Simplify kvm_handle_io
  kvm: x86: fix setting IA32_FEATURE_CONTROL with nested VMX disabled
  kvm: add KVM_IRQFD_FLAG_RESAMPLE support
  kvm: migrate vPMU state
  target-i386: remove tabs from target-i386/cpu.h
  Initialize IA32_FEATURE_CONTROL MSR in reset and migration

Conflicts:
	target-i386/cpu.h
	target-i386/kvm.c

aliguori: fixup trivial conflicts due to whitespace and added cpu
          argument

Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-08-29 17:21:51 -05:00
Anthony Liguori 3e998a7788 pc,pci,virtio fixes and cleanups
This includes pc and pci cleanups, future-proofing of ROM files,
 and a virtio bugfix correcting splice on virtio console.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into stable-1.5

pc,pci,virtio fixes and cleanups

This includes pc and pci cleanups, future-proofing of ROM files,
and a virtio bugfix correcting splice on virtio console.

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

# gpg: Signature made Mon 26 Aug 2013 01:34:20 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Markus Armbruster (5) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  virtio: virtqueue_get_avail_bytes: fix desc_pa when loop over the indirect descriptor table
  pc_piix: Kill pc_init1() memory region args
  pc: pc_compat_1_4() now can call pc_compat_1_5()
  pc: Create pc_compat_*() functions
  pc: Kill pc_init_pci_1_0()
  pc: Don't explode QEMUMachineInitArgs into local variables needlessly
  pc: Don't prematurely explode QEMUMachineInitArgs
  ppc: Don't duplicate QEMUMachineInitArgs in PPCE500Params
  ppc: Don't explode QEMUMachineInitArgs into local variables needlessly
  sun4: Don't prematurely explode QEMUMachineInitArgs
  q35: Add PCIe switch to example q35 configuration
  loader: store FW CFG ROM files in RAM
  arch_init: align MR size to target page size
  pc: cleanup 1.4 compat support

Message-id: 1377535318-30491-1-git-send-email-mst@redhat.com
2013-08-29 17:19:19 -05:00
Richard Henderson 584950fd4e tcg-i386: Remove abort from GETPC_LDST
Indeed, remove it entirely and remove the is_tcg_gen_code check
from GETPC_EXT.

Fixes https://bugs.launchpad.net/qemu/+bug/1218098 wherein a call
to a "normal" helper function performed a sequence of tail calls
all the way into the memory helper functions, leading to a stack
frame in which the memory helper function appeared to be called
directly from tcg.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-08-29 20:20:39 +02:00
Markus Armbruster c165473269 hw: Clean up bogus default boot order
We set default boot order "cad" in every single machine definition
except "pseries" and "moxiesim", even though very few boards actually
care for boot order, and "cad" makes sense for even fewer.

Machines that care:

* pc and its variants

  Accept up to three letters 'a', 'b' (undocumented alias for 'a'),
  'c', 'd' and 'n'.  Reject all others (fatal with -boot).

* nseries (n800, n810)

  Check whether order starts with 'n'.  Silently ignored otherwise.

* prep, g3beige, mac99

  Extract the first character the machine understands (subset of
  'a'..'f').  Silently ignored otherwise.

* spapr

  Accept an arbitrary string (vl.c restricts it to contain only
  'a'..'p', no duplicates).

* sun4[mdc]

  Use the first character.  Silently ignored otherwise.

Strip characters these machines ignore from their default boot order.

For all other machines, remove the unused default boot order
alltogether.

Note that my rename of QEMUMachine member boot_order to
default_boot_order and QEMUMachineInitArgs member boot_device to
boot_order has a welcome side effect: it makes every use of boot
orders visible in this patch, for easy review.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-08-28 10:16:47 +03:00
Michael S. Tsirkin 1466cef32d pc: fix regression for 64 bit PCI memory
commit 3984890181
    pc: limit 64 bit hole to 2G by default
introduced a way for management to control
the window allocated to the 64 bit PCI hole.

This is useful, but existing management tools do not know how to set
this property.  As a result, e.g. specifying a large ivshmem device with
size > 4G is broken by default.  For example this configuration no
longer works:

-device ivshmem,size=4294967296,chardev=cfoo
-chardev socket,path=/tmp/sock,id=cfoo,server,nowait

Fix this by detecting that hole size was not specified
and defaulting to the backwards-compatible value of 1 << 62.

Cc: qemu-stable@nongnu.org
Cc: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-08-27 10:13:41 +03:00
Alexey Kardashevskiy 9eda7d373e pci: Introduce helper to retrieve a PCI device's DMA address space
A PCI device's DMA address space (possibly an IOMMU) is returned by a
method on the PCIBus.  At the moment that only has one caller, so the
method is simply open coded.  We'll need another caller for VFIO, so
this patch introduces a helper/wrapper function.

If IOMMU is not set, the pci_device_iommu_address_space() function
returns the parent's IOMMU skipping the "bus master" address space as
otherwise proper emulation would require more effort for no benefit.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[aik: added inheritance from parent if iommu is not set for the current bus]
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-08-27 08:30:48 +03:00
Richard Henderson 401c227b0a tcg-i386: Use new return-argument ld/st helpers
Discontinue the jump-around-jump-to-jump scheme, trading it for a single
immediate move instruction.  The two extra jumps always consume 7 bytes,
whereas the immediate move is either 5 or 7 bytes depending on where the
code_gen_buffer gets located.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-08-26 13:31:54 -07:00
Richard Henderson aac1fb0576 tcg: Tidy softmmu_template.h
Avoid a loop in the tlb_fill path; the fill will either succeed or
generate an exception.

Inline the slow_ld/st function; it was a complete copy of the main
helper except for the actual cross-page unaligned code, and the
compiler was inlining it anyway.

Add unlikely markers optimizing for the most common case of simple
tlb miss.

Make sure the compiler can optimize away the unaligned paths for a
1 byte access.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-08-26 13:31:54 -07:00
Richard Henderson e25c3887e6 tcg: Add mmu helpers that take a return address argument
Allow the code that tcg generates to be less obtuse, passing in
the return address directly instead of computing it in the helper.

Maintain the old entrance point unchanged as an alternate entry point.

Delete the helper_st*_cmmu prototypes; the implementations did not exist.

Signed-off-by: Richard Henderson <rth@twiddle.net>
2013-08-26 13:31:53 -07:00
Anthony Liguori f7ad538e1e Merge remote-tracking branch 'stefanha/block' into staging
# By Alex Bligh (32) and others
# Via Stefan Hajnoczi
* stefanha/block: (42 commits)
  win32-aio: drop win32_aio_flush_cb()
  aio-win32: replace incorrect AioHandler->opaque usage with ->e
  aio / timers: remove dummy_io_handler_flush from tests/test-aio.c
  aio / timers: Remove legacy interface
  aio / timers: Switch entire codebase to the new timer API
  aio / timers: Add scripts/switch-timer-api
  aio / timers: Add test harness for AioContext timers
  aio / timers: convert block_job_sleep_ns and co_sleep_ns to new API
  aio / timers: Convert rtc_clock to be a QEMUClockType
  aio / timers: Remove main_loop_timerlist
  aio / timers: Rearrange timer.h & make legacy functions call non-legacy
  aio / timers: Add qemu_clock_get_ms and qemu_clock_get_ms
  aio / timers: Remove legacy qemu_clock_deadline & qemu_timerlist_deadline
  aio / timers: Remove alarm timers
  aio / timers: Add documentation and new format calls
  aio / timers: Use all timerlists in icount warp calculations
  aio / timers: Introduce new API timer_new and friends
  aio / timers: On timer modification, qemu_notify or aio_notify
  aio / timers: Convert mainloop to use timeout
  aio / timers: Convert aio_poll to use AioContext timers' deadline
  ...

Message-id: 1377202298-22896-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-08-26 09:19:50 -05:00
Alex Bligh b4049b74b9 aio / timers: Remove legacy interface
Remove the legacy interface from include/qemu/timers.h.

Ensure struct QEMUClock is not exposed at all.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Alex Bligh bc72ad6754 aio / timers: Switch entire codebase to the new timer API
This is an autogenerated patch using scripts/switch-timer-api.

Switch the entire code base to using the new timer API.

Note this patch may introduce some line length issues.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Alex Bligh 7483d1e547 aio / timers: convert block_job_sleep_ns and co_sleep_ns to new API
Convert block_job_sleep_ns and co_sleep_ns to use the new timer
API.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Alex Bligh 884f17c235 aio / timers: Convert rtc_clock to be a QEMUClockType
Convert rtc_clock to be a QEMUClockType

Move rtc_clock users to use the new API

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Alex Bligh 7bf8fbde44 aio / timers: Remove main_loop_timerlist
Now we have timerlistgroups implemented and main_loop_tlg, we
no longer need the concept of a default timer list associated
with each clock. Remove it and simplify initialisation of
clocks and timer lists.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Alex Bligh 40daca54cd aio / timers: Rearrange timer.h & make legacy functions call non-legacy
Rearrange timer.h so it is in order by function type.

Make legacy functions call non-legacy functions rather than vice-versa.

Convert cpus.c to use new API.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:14:24 +02:00
Alex Bligh 55a197dab4 aio / timers: Add qemu_clock_get_ms and qemu_clock_get_ms
Add utility functions qemu_clock_get_ms and qemu_clock_get_us

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:55 +02:00
Alex Bligh 63111b69cc aio / timers: Remove legacy qemu_clock_deadline & qemu_timerlist_deadline
Remove qemu_clock_deadline and qemu_timerlist_deadline now we are using
the ns functions throughout.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:55 +02:00
Alex Bligh 6d32717155 aio / timers: Remove alarm timers
Remove alarm timers from qemu-timers.c now we use g_poll / ppoll
instead.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:55 +02:00
Alex Bligh 54904d2a91 aio / timers: Add documentation and new format calls
Add documentation for existing qemu timer calls. Add new format
calls of the format timer_XXX rather than qemu_XXX_timer
for consistency.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:53 +02:00
Alex Bligh ac70aafc28 aio / timers: Use all timerlists in icount warp calculations
Notify all timerlists derived from vm_clock in icount warp
calculations.

When calculating timer delay based on vm_clock deadline, use
all timerlists.

For compatibility, maintain an apparent bug where when using
icount, if no vm_clock timer was set, qemu_clock_deadline
would return INT32_MAX and always set an icount clock expiry
about 2 seconds ahead.

NB: thread safety - when different timerlists sit on different
threads, this will need some locking.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:28 +02:00
Alex Bligh a3a726ae09 aio / timers: Introduce new API timer_new and friends
Introduce new API for creating timers - timer_new and
_ns, _ms, _us derivatives.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:28 +02:00
Alex Bligh b1bbfe72ec aio / timers: On timer modification, qemu_notify or aio_notify
On qemu_mod_timer_ns, ensure qemu_notify or aio_notify is called to
end the appropriate poll(), irrespective of use_icount value.

On qemu_clock_enable, ensure qemu_notify or aio_notify is called for
all QEMUTimerLists attached to the QEMUClock.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:28 +02:00
Alex Bligh 4e29e8311a aio / timers: Add aio_timer_init & aio_timer_new wrappers
Add aio_timer_init and aio_timer_new wrapper functions.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:28 +02:00
Alex Bligh d5541d8680 aio / timers: Add a notify callback to QEMUTimerList
Add a notify pointer to QEMUTimerList so it knows what to notify
on a timer change.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:28 +02:00
Alex Bligh dae21b98b9 aio / timers: Add QEMUTimerListGroup to AioContext
Add a QEMUTimerListGroup each AioContext (meaning a QEMUTimerList
associated with each clock is added) and delete it when the
AioContext is freed.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:27 +02:00
Alex Bligh 754d6a544d aio / timers: Add QEMUTimerListGroup and helper functions
Add QEMUTimerListGroup and helper functions, to represent
a QEMUTimerList associated with each clock. Add a default
QEMUTimerListGroup representing the default timer lists
which are not associated with any other object (e.g.
an AioContext as added by future patches).

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:27 +02:00
Alex Bligh 6a1751b7aa aio / timers: Untangle include files
include/qemu/timer.h has no need to include main-loop.h and
doing so causes an issue for the next patch. Unfortunately
various files assume including timers.h will pull in main-loop.h.
Untangle this mess.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:27 +02:00
Alex Bligh ff83c66ecc aio / timers: Split QEMUClock into QEMUClock and QEMUTimerList
Split QEMUClock into QEMUClock and QEMUTimerList so that we can
have more than one QEMUTimerList associated with the same clock.

Introduce a main_loop_timerlist concept and make existing
qemu_clock_* calls that actually should operate on a QEMUTimerList
call the relevant QEMUTimerList implementations, using the clock's
default timerlist. This vastly reduces the invasiveness of this
change and means the API stays constant for existing users.

Introduce a list of QEMUTimerLists associated with each clock
so that reenabling the clock can cause all the notifiers
to be called. Note the code to do the notifications is added
in a later patch.

Switch QEMUClockType to an enum. Remove global variables vm_clock,
host_clock and rt_clock and add compatibility defines. Do not
fix qemu_next_alarm_deadline as it's going to be deleted.

Add qemu_clock_use_for_deadline to indicate whether a particular
clock should be used for deadline calculations. When use_icount
is true, vm_clock should not be used for deadline calculations
as it does not contain a nanosecond count. Instead, icount
timeouts come from the execution thread doing aio_notify or
qemu_notify as appropriate. This function is used in the next
patch.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:27 +02:00
Alex Bligh f9a976b740 aio / timers: Make qemu_run_timers and qemu_run_all_timers return progress
Make qemu_run_timers and qemu_run_all_timers return progress
so that aio_poll etc. can determine whether a timer has been
run.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:27 +02:00
Alex Bligh 4e0c6529fc aio / timers: add ppoll support with qemu_poll_ns
Add qemu_poll_ns which works like g_poll but takes a nanosecond
timeout.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 19:10:26 +02:00
Anthony Liguori 5211333bf7 Merge remote-tracking branch 'luiz/queue/qmp' into staging
# By Laszlo Ersek (8) and others
# Via Luiz Capitulino
* luiz/queue/qmp:
  scripts/qapi.py: Avoid syntax not supported by Python 2.4
  monitor: print the invalid char in error message
  OptsVisitor: introduce unit tests, with test cases for range flattening
  add "test-int128" and "test-bitops" to .gitignore
  OptsVisitor: don't try to flatten overlong integer ranges
  OptsVisitor: opts_type_uint64(): recognize intervals when LM_IN_PROGRESS
  OptsVisitor: rebase opts_type_uint64() to parse_uint_full()
  OptsVisitor: opts_type_int(): recognize intervals when LM_IN_PROGRESS
  OptsVisitor: introduce list modes for interval flattening
  OptsVisitor: introduce basic list modes
  Convert stderr message calling error_get_pretty() to error_report()

Message-id: 1377015041-6567-1-git-send-email-lcapitulino@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-08-22 09:29:25 -05:00
Alex Bligh 02a03a9f12 aio / timers: add qemu-timer.c utility functions
Add utility functions to qemu-timer.c for nanosecond timing.

Add qemu_clock_deadline_ns to calculate deadlines to
nanosecond accuracy.

Add utility function qemu_soonest_timeout to calculate soonest deadline.

Add qemu_timeout_ns_to_ms to convert a timeout in nanoseconds back to
milliseconds for when ppoll is not used.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 15:58:05 +02:00
Alex Bligh 58ac56b9ad aio / timers: Rename qemu_new_clock and expose clock types
Rename qemu_new_clock to qemu_clock_new.

Expose clock types.

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 15:58:05 +02:00
Alex Bligh e93379b039 aio / timers: Rename qemu_timer_* functions
Rename four functions in preparation for new API.

Rename qemu_timer_expired to timer_expired
Rename qemu_timer_expire_time_ns to timer_expire_time_ns
Rename qemu_timer_pending to timer_pending
Rename qemu_timer_expired_ns to timer_expired_ns

Signed-off-by: Alex Bligh <alex@alex.org.uk>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 15:58:05 +02:00
Asias He 0d51b4debe block: Introduce bs->zero_beyond_eof
In 4146b46c42e0989cb5842e04d88ab6ccb1713a48 (block: Produce zeros when
protocols reading beyond end of file), we break qemu-iotests ./check
-qcow2 022. This happens because qcow2 temporarily sets ->growable = 1
for vmstate accesses (which are stored beyond the end of regular image
data).

We introduce the bs->zero_beyond_eof to allow qcow2_load_vmstate() to
disable ->zero_beyond_eof temporarily in addition to enable ->growable.

[Since the broken patch "block: Produce zeros when protocols reading
beyond end of file" has not been merged yet, I have applied this fix
*first* and will then apply the next patch to keep the tree bisectable.
-- Stefan]

Suggested-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Asias He <asias@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-22 14:10:21 +02:00
Michael S. Tsirkin 04920fc0fa loader: store FW CFG ROM files in RAM
ROM files that are put in FW CFG are copied to guest ram, by BIOS, but
they are not backed by RAM so they don't get migrated.

Each time we change two bytes in such a ROM this breaks cross-version
migration: since we can migrate after BIOS has read the first byte but
before it has read the second one, getting an inconsistent state.

Future-proof this by creating, for each such ROM,
an MR serving as the backing store.
This MR is never mapped into guest memory, but it's registered
as RAM so it's migrated with the guest.

Naturally, this only helps for -M 1.7 and up, older machine types
will still have the cross-version migration bug.
Luckily the race window for the problem to trigger is very small,
which is also likely why we didn't notice the cross-version
migration bug in testing yet.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2013-08-21 00:18:39 +03:00
Anthony Liguori ecfe10c9a6 target-arm queue
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Merge remote-tracking branch 'pmaydell/tags/pull-target-arm-20130820' into staging

target-arm queue

# gpg: Signature made Tue 20 Aug 2013 08:56:28 AM CDT using RSA key ID 14360CDE
# gpg: Can't check signature: public key not found

# By Peter Maydell (20) and Peter Chubb (1)
# Via Peter Maydell
* pmaydell/tags/pull-target-arm-20130820: (21 commits)
  hw/timer/imx_epit: Simplify and fix imx_epit implementation
  default-configs: Fix A9MP and A15MP config names
  hw/cpu/a15mpcore: Wire generic timer outputs to GIC inputs
  target-arm: Implement the generic timer
  target-arm: Support coprocessor registers which do I/O
  target-arm: Allow raw_read() and raw_write() to handle 64 bit regs
  hw/arm/pic_cpu: Remove the now-unneeded arm_pic_init_cpu()
  hw/arm/xilinx_zynq: Don't use arm_pic_init_cpu()
  hw/arm/vexpress: Don't use arm_pic_init_cpu()
  hw/arm/versatilepb: Don't use arm_pic_init_cpu()
  hw/arm/strongarm: Don't use arm_pic_init_cpu()
  hw/arm/realview: Don't use arm_pic_init_cpu()
  hw/arm/omap*: Don't use arm_pic_init_cpu()
  hw/arm/musicpal: Don't use arm_pic_init_cpu()
  hw/arm/kzm: Don't use arm_pic_init_cpu()
  hw/arm/integratorcp: Don't use arm_pic_init_cpu()
  hw/arm/highbank: Don't use arm_pic_init_cpu()
  hw/arm/exynos4210: Don't use arm_pic_init_cpu()
  hw/arm/armv7m: Don't use arm_pic_init_cpu()
  target-arm: Make IRQ and FIQ gpio lines on the CPU object
  ...

Message-id: 1377007680-4934-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-08-20 11:23:52 -05:00
Laszlo Ersek 15a849be10 OptsVisitor: don't try to flatten overlong integer ranges
Prevent mistyped command line options from incurring high memory and CPU
usage at startup. 64K elements in a range should be enough for everyone
(TM).

The OPTS_VISITOR_RANGE_MAX macro is public so that unit tests can
construct corner cases with it.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-08-20 11:52:00 -04:00
Anthony Liguori 9176e8fb8f Merge remote-tracking branch 'stefanha/block-next' into staging
# By Stefan Hajnoczi
# Via Stefan Hajnoczi
* stefanha/block-next:
  aio: drop io_flush argument
  tests: drop event_active_cb()
  thread-pool: drop thread_pool_active()
  dataplane/virtio-blk: drop flush_true() and flush_io()
  block/ssh: drop return_true()
  block/sheepdog: drop have_co_req() and aio_flush_request()
  block/rbd: drop qemu_rbd_aio_flush_cb()
  block/nbd: drop nbd_have_request()
  block/linux-aio: drop qemu_laio_completion_cb()
  block/iscsi: drop iscsi_process_flush()
  block/gluster: drop qemu_gluster_aio_flush_cb()
  block/curl: drop curl_aio_flush()
  aio: stop using .io_flush()
  tests: adjust test-thread-pool to new aio_poll() semantics
  tests: adjust test-aio to new aio_poll() semantics
  dataplane/virtio-blk: check exit conditions before aio_poll()
  block: stop relying on io_flush() in bdrv_drain_all()
  block: ensure bdrv_drain_all() works during bdrv_delete()

Message-id: 1376921877-9576-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-08-20 09:52:18 -05:00
Peter Maydell b643e4b90b hw/arm/pic_cpu: Remove the now-unneeded arm_pic_init_cpu()
Now all the boards have been converted arm_pic_init_cpu()
is unused and can just be deleted.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1375977856-25046-15-git-send-email-peter.maydell@linaro.org
2013-08-20 14:54:31 +01:00
Stefan Hajnoczi f2e5dca46b aio: drop io_flush argument
The .io_flush() handler no longer exists and has no users.  Drop the
io_flush argument to aio_set_fd_handler() and related functions.

The AioFlushEventNotifierHandler and AioFlushHandler typedefs are no
longer used and are dropped too.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-08-19 15:52:19 +02:00
Eduardo Habkost 8231c2dd22 qom: Introduce instance_post_init hook
This will allow classes to specify a function to be called after all
instance_init functions were called.

This will be used by DeviceState to call qdev_prop_set_globals() at the
right moment.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-16 18:44:33 +02:00
Andreas Färber 35143f0164 gdbstub: Fix gdb_register_coprocessor() register counting
Commit a0e372f0c4 reorganized the register
counting for GDB. While it seems correct not to let the total number of
registers skyrocket in an SMP scenario through a static variable, the
distinction between total register count and 'g' packet register count
(last_reg vs. num_g_regs) got lost among the way.

Fix this by introducing CPUState::gdb_num_g_regs and using that in
gdb_handle_packet().

Reported-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: qemu-stable@nongnu.org (stable-1.6)
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Tested-by: Max Filippov <jcmvbkbc@gmail.com>
Tested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-16 18:44:33 +02:00
Paolo Bonzini 6dd2a5c98a pc_sysfw: do not make it a device anymore
Move the code to hw/i386, the sole remaining property is available
as !pci_enabled.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1376069702-22330-4-git-send-email-aliguori@us.ibm.com

Rebased.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-08-12 09:31:14 -05:00