Commit Graph

347 Commits

Author SHA1 Message Date
KONRAD Frederic
2cd2b016a1 virtio-serial: add the virtio-serial device.
Create virtio-serial which extends virtio-device, so it can be connected
on virtio-bus.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Message-id: 1365512016-21944-2-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-15 10:22:04 -05:00
KONRAD Frederic
f574fa8b07 virtio: fix broken aliases.
This fix the broken aliases, by renaming the devices.

So: * virtio-blk => virtio-blk-device.
    * virtio-balloon => virtio-balloon-device.
    * virtio-scsi => virtio-scsi-device.

All virtio-*-pci, virtio-*-s390, virtio-*-ccw didn't change.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1365501888-14602-1-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-15 10:22:04 -05:00
Michael S. Tsirkin
3718c7f091 acpi.h: make it self contained
Headers shouldn't assume another header is included,
pull in everything necessary.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 20130415081250.GA7374@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-15 10:22:04 -05:00
Kevin Wolf
8d3b1a2d0b block: Introduce bdrv_pwritev() for qcow2_save_vmstate
Directly pass the QEMUIOVector on instead of linearising it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-15 08:26:18 +02:00
Kevin Wolf
05fcc84888 savevm: Implement block_writev_buffer()
Instead of breaking up RAM state into many small chunks, pass the iovec
to the block layer for better performance.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-15 08:26:18 +02:00
Kevin Wolf
cf8074b382 block: Introduce bdrv_writev_vmstate
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-15 08:26:18 +02:00
Markus Armbruster
cb2744ea34 unicode: New mod_utf8_codepoint()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-04-13 19:39:59 +00:00
Aurelien Jarno
5d6f5cdd8a aes: make Td[0-5] and Te[0-5] tables non static
Remove static attribute to Td[0-5] and Te[0-5] tables so that they
can be used outside of aes.c. Change their type from u32 to uint32_t,
to keep the u32 udef local to aes.c. Prefix them with AES_ so that they
do not conflict with other symbols.

Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-04-13 13:51:57 +02:00
Aurelien Jarno
753d9b82c5 aes: move aes.h from include/block to include/qemu
Move aes.h from include/block to include/qemu to show it can be reused
by other subsystems.

Cc: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-04-13 13:51:57 +02:00
Andreas Färber
2f493fee18 sh7750: Change cpu field type to SuperHCPU
This brings us a step closer to QOM'ified SH7750 SoC and
fixes b350ab75 (target-sh4: Move PVR/PRR/CVR into SuperHCPUClass)
assuming SuperHCPU type for SUPERH_CPU_GET_CLASS().

Fix Coding Style issues while at it (indentation, braces).

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2013-04-13 13:51:45 +02:00
Anthony Liguori
47b5264eb3 Merge remote-tracking branch 'bonzini/hw-dirs' into staging
# By Paolo Bonzini
# Via Paolo Bonzini
* bonzini/hw-dirs: (35 commits)
  hw: move private headers to hw/ subdirectories.
  MAINTAINERS: update for source code movement
  hw: move last file to hw/arm/
  hw: move hw/kvm/ to hw/i386/kvm
  hw: move ARM CPU cores to hw/cpu/, configure with default-configs/
  hw: move other devices to hw/misc/, configure with default-configs/
  hw: move NVRAM interfaces to hw/nvram/, configure with default-configs/
  hw: move GPIO interfaces to hw/gpio/, configure with default-configs/
  hw: move interrupt controllers to hw/intc/, configure with default-configs/
  hw: move DMA controllers to hw/dma/, configure with default-configs/
  hw: move VFIO and ivshmem to hw/misc/
  hw: move PCI bridges to hw/pci-* or hw/ARCH
  hw: move SD/MMC devices to hw/sd/, configure with default-configs/
  hw: move timer devices to hw/timer/, configure with default-configs/
  hw: move ISA bridges and devices to hw/isa/, configure with default-configs/
  hw: move char devices to hw/char/, configure via default-configs/
  hw: move more files to hw/xen/
  hw: move SCSI controllers to hw/scsi/, configure via default-configs/
  hw: move SSI controllers to hw/ssi/, configure via default-configs/
  hw: move I2C controllers to hw/i2c/, configure via default-configs/
  ...

Message-id: 1365442249-18259-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-08 13:12:33 -05:00
Paolo Bonzini
c0907c9e64 hw: move PCI bridges to hw/pci-* or hw/ARCH
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:14 +02:00
Paolo Bonzini
3bd884511f hw: move timer devices to hw/timer/, configure with default-configs/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:14 +02:00
Paolo Bonzini
0d09e41a51 hw: move headers to include/
Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:10 +02:00
Blue Swirl
9196dd411d Merge branch 'arm-devs.next' of git://git.linaro.org/people/pmaydell/qemu-arm
* 'arm-devs.next' of git://git.linaro.org/people/pmaydell/qemu-arm:
  hw/nand.c: Fix nand erase operation
  cadence_uart: Flush queued characters on reset
  pl330: Don't inhibit ES bits on INTEN
  pflash_cfi01: Implement migration support
  pflash_cfi01: Drop unused 'bypass' field
  hw/arm_gic_common: Use vmstate struct rather than save/load functions
  arm_gic: Fix sizes of state fields in preparation for vmstate support
  vmstate: Add support for two dimensional arrays
  hw/onenand.c: fix migration of dynamically allocated buffer "otp"
  hw/sd.c: fix migration of dynamically allocated buffer "buf"
  vmstate.h: introduce VMSTATE_BUFFER_POINTER_UNSAFE macro
  hw/arm_mptimer: Save the timer state
  pl050: Don't send always-constant is_mouse field
  hw/arm/nseries: don't print to stdout or stderr
2013-04-06 12:53:54 +00:00
Anthony Liguori
5098699a51 Merge remote-tracking branch 'kwolf/for-anthony' into staging
# By Stefan Hajnoczi (4) and Kevin Wolf (3)
# Via Kevin Wolf
* kwolf/for-anthony:
  qcow2: Fix L1 write error handling in qcow2_update_snapshot_refcount
  qcow2: Return real error in qcow2_update_snapshot_refcount
  block: clean up I/O throttling wait_time code
  block: drop duplicated slice extension code
  block: keep I/O throttling slice time constant
  block: fix I/O throttling accounting blind spot
  usb-storage: Forward serial number to scsi-disk
2013-04-05 12:49:10 -05:00
Stefan Hajnoczi
ae29d6c64b block: keep I/O throttling slice time constant
It is not necessary to adjust the slice time at runtime.  We already
extend the current slice in order to carry over accounting into the next
slice.  Changing the actual slice time value introduces oscillations.

The guest may experience large changes in throughput or IOPS from one
moment to the next when slice times are adjusted.

Reported-by: Benoît Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-By: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-04-05 18:58:05 +02:00
Stefan Hajnoczi
5905fbc9c9 block: fix I/O throttling accounting blind spot
I/O throttling relies on bdrv_acct_done() which is called when a request
completes.  This leaves a blind spot since we only charge for completed
requests, not submitted requests.

For example, if there is 1 operation remaining in this time slice the
guest could submit 3 operations and they will all be submitted
successfully since they don't actually get accounted for until they
complete.

Originally we probably thought this is okay since the requests will be
accounted when the time slice is extended.  In practice it causes
fluctuations since the guest can exceed its I/O limit and it will be
punished for this later on.

Account for I/O upon submission so that I/O limits are enforced
properly.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Tested-By: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-04-05 18:58:05 +02:00
Peter Maydell
bd7f92e59e vmstate: Add support for two dimensional arrays
Add support for migrating two dimensional arrays, by defining
a set of new macros VMSTATE_*_2DARRAY paralleling the existing
VMSTATE_*_ARRAY macros. 2D arrays are handled the same for actual
state serialization; the only difference is that the type check
has to change for a 2D array.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Igor Mitsyanko <i.mitsyanko@gmail.com>
Message-id: 1363975375-3166-2-git-send-email-peter.maydell@linaro.org
2013-04-05 16:17:59 +01:00
Igor Mitsyanko
8070568b9a vmstate.h: introduce VMSTATE_BUFFER_POINTER_UNSAFE macro
Macro could be used to migrate a dynamically allocated buffer of known size.

Signed-off-by: Igor Mitsyanko <i.mitsyanko@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1362923278-4080-2-git-send-email-i.mitsyanko@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-04-05 16:17:58 +01:00
Luiz Capitulino
54d49ac992 qstring: add qstring_get_length()
Long overdue.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
2013-04-05 08:42:29 -04:00
Brad Smith
d05ef16045 Allow clock_gettime() monotonic clock to be utilized on more OS's
Allow the clock_gettime() code using monotonic clock to be utilized on
more POSIX compliannt OS's. This started as a fix for OpenBSD which was
listed in one function as part of the previous hard coded list of OS's
for the functions to support but not in the other.

Signed-off-by: Brad Smith <brad@comstyle.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 20130405003748.GH884@rox.home.comstyle.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-04 20:22:45 -05:00
Laszlo Ersek
0c764a9dfc acpi_table_add(): accept QemuOpts and parse it with OptsVisitor
As one consequence, strtok() -- which modifies its argument -- is replaced
with g_strsplit().

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Message-id: 1363821803-3380-6-git-send-email-lersek@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-04 19:23:08 -05:00
Hans de Goede
44c473decd qemu-char: Add qemu_chr_fe_claim / _release helper functions
Add qemu_chr_fe_claim / _release helper functions for properly dealing with
avail_connections.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364412581-3672-2-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-04 19:21:25 -05:00
Anthony Liguori
162cbbd173 Merge remote-tracking branch 'luiz/queue/qmp' into staging
# By Stefan Hajnoczi
# Via Luiz Capitulino
* luiz/queue/qmp:
  chardev: clear O_NONBLOCK on SCM_RIGHTS file descriptors
  qemu-socket: set passed fd non-blocking in socket_connect()
  net: ensure "socket" backend uses non-blocking fds
  oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()
2013-04-02 14:07:35 -05:00
Stefan Hajnoczi
f9e8cacc55 oslib-posix: rename socket_set_nonblock() to qemu_set_nonblock()
The fcntl(fd, F_SETFL, O_NONBLOCK) flag is not specific to sockets.
Rename to qemu_set_nonblock() just like qemu_set_cloexec().

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2013-04-02 11:47:37 -04:00
Stefan Berger
8f0605cc9c QOM-ify the TPM support
QOM-ified the TPM support with much code borrowed from the rng implementation.

All other TPM related code moves will be provided in a subsequent patch.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Message-id: 1364469981.24703.1.camel@d941e-10
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-02 08:15:18 -05:00
Hans de Goede
574b711a92 qemu-char: Consolidate guest_close/guest_open into a set_fe_open callback
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-7-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:26:49 -05:00
Hans de Goede
8e25daa87a qemu-char: Cleanup: consolidate fe_open/fe_close into fe_set_open
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-6-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:26:49 -05:00
Hans de Goede
190832289f qemu-char: Automatically do fe_open / fe_close on qemu_chr_add_handlers
Most frontends can't really determine if the guest actually has the frontend
side open. So lets automatically generate fe_open / fe_close as soon as a
frontend becomes ready (as signalled by calling qemu_chr_add_handlers) /
becomes non ready (as signalled by setting all handlers to NULL).

And allow frontends which can actually determine if the guest is listening to
opt-out of this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-5-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:26:49 -05:00
Hans de Goede
c0c4bd2cfa qemu-char: Add fe_open tracking
Add tracking of the fe_open state to struct CharDriverState.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-4-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:26:49 -05:00
Hans de Goede
fee204fd46 qemu-char: Rename qemu_chr_generic_open to qemu_chr_be_generic_open
To better reflect that it is for handling a backend being opened.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-3-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:26:49 -05:00
Hans de Goede
16665b943b qemu-char: Rename opened to be_open
Rename the opened variable to be_open to reflect that it contains the
opened state of the backend.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Message-id: 1364292483-16564-2-git-send-email-hdegoede@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:26:48 -05:00
Paolo Bonzini
99835e0084 compiler: fix warning with GCC 4.8.0
GCC 4.8.0 introduces a new warning:

    block/qcow2-snapshot.c: In function 'qcow2_write_snapshots’:
    block/qcow2-snapshot.c:252:18: error: typedef 'qemu_build_bug_on__253'
              locally defined but not used [-Werror=unused-local-typedefs]
         QEMU_BUILD_BUG_ON(offsetof(QCowHeader, snapshots_offset) !=
                  ^
    cc1: all warnings being treated as errors

(Caret diagnostics aren't perfect yet with macros... :)) Work around it
with __attribute__((unused)).

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1364391272-1128-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-27 10:10:14 -05:00
Anthony Liguori
404e7a4f4a virtio,pci,qom
Work by Alex to support VGA assignment,
 pci and virtio fixes by Stefan, Jason and myself, and a
 new qmp event for hotplug support by myself.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQEcBAABAgAGBQJRUfDAAAoJECgfDbjSjVRp5wwH/RiNzEuC0SNuMArXh2LS+qjn
 EavcSRTas5800Rl8bW2iYwJV38WhyW7jKs3JxbL5iK6XLeZvr7mureMRpsT6N5cR
 WPqoZBw2jIxcHmYZODHTGd9SrAmF2LpfKypN3a86P5P4sQvV/dEusPQx7ZNyi5I5
 kdhqNyP6Q6scAUbJVrNUbcOy8euLUtpEO2VQju/gikz2KLsQj6Hyxt9vKV2ZquYU
 B7pKvYt5UZhNPqhfBmRptW+U0CMYUPiZBZkZsTEPUibIFHQqGkMD/KtthFFDZc/U
 hjxttuETzjACR3KKgegwLVYCFEF8WadPJark4LWb4D9TA1MIdgo2NabNpqYxqrA=
 =PY9F
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'mst/tags/for_anthony' into staging

virtio,pci,qom

Work by Alex to support VGA assignment,
pci and virtio fixes by Stefan, Jason and myself, and a
new qmp event for hotplug support by myself.

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

# gpg: Signature made Tue 26 Mar 2013 02:02:24 PM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Alex Williamson (13) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony: (23 commits)
  pcie: Add endpoint capability initialization wrapper
  roms: switch oldnoconfig to olddefconfig
  pcie: Mangle types to match topology
  pci: Create and use API to determine root buses
  pci: Create pci_bus_is_express helper
  pci: Q35, Root Ports, and Switches create PCI Express buses
  pci: Allow PCI bus creation interfaces to specify the type of bus
  pci: Move PCI and PCIE type defines
  pci: Create and register a new PCI Express TypeInfo
  exec: assert that RAMBlock size is non-zero
  pci: refuse empty ROM files
  pci_bridge: Remove duplicate IRQ swizzle function
  pci_bridge: Use a default map_irq function
  pci: Fix INTx routing notifier recursion
  pci_bridge: drop formatting from source
  pci_bridge: factor out common code
  pci: Teach PCI Bridges about VGA routing
  pci: Add PCI VGA helpers
  virtio-pci: guest notifier mask without non-irqfd
  virtio-net: remove layout assumptions for mq ctrl
  ...
2013-03-26 16:16:43 -05:00
Anthony Liguori
18501ae6e8 Merge remote-tracking branch 'quintela/migration.next' into staging
# By Peter Lieven (9) and others
# Via Juan Quintela
* quintela/migration.next: (22 commits)
  Use qemu_put_buffer_async for guest memory pages
  Add qemu_put_buffer_async
  Use writev ops if available
  Store the data to send also in iovec
  Update bytes_xfer in qemu_put_byte
  Add socket_writev_buffer function
  Add QemuFileWritevBuffer QemuFileOps
  migration: use XBZRLE only after bulk stage
  migration: do not search dirty pages in bulk stage
  migration: do not sent zero pages in bulk stage
  migration: add an indicator for bulk state of ram migration
  migration: search for zero instead of dup pages
  bitops: unroll while loop in find_next_bit()
  buffer_is_zero: use vector optimizations if possible
  cutils: add a function to find non-zero content in a buffer
  move vector definitions to qemu-common.h
  savevm: Fix bugs in the VMSTATE_VBUFFER_MULTIPLY definition
  savevm: Add VMSTATE_STRUCT_VARRAY_POINTER_UINT32
  savevm: Add VMSTATE_FLOAT64 helpers
  savevm: Add VMSTATE_UINTTL_EQUAL helper
  ...
2013-03-26 13:38:00 -05:00
Anthony Liguori
cd18720a29 char: introduce a blocking version of qemu_chr_fe_write
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-26 10:08:07 -05:00
Orit Wasserman
6181ec2455 Add qemu_put_buffer_async
This allows us to add a buffer to the iovec to send without copying it
into the static buffer, the buffer will be sent later when qemu_fflush is called.

Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:32:33 +01:00
Orit Wasserman
d913829f0f Add QemuFileWritevBuffer QemuFileOps
This will allow us to write an iovec

Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:32:33 +01:00
Peter Lieven
f1c72795af migration: do not sent zero pages in bulk stage
during bulk stage of ram migration if a page is a
zero page do not send it at all.
the memory at the destination reads as zero anyway.

even if there is an madvise with QEMU_MADV_DONTNEED
at the target upon receipt of a zero page I have observed
that the target starts swapping if the memory is overcommitted.
it seems that the pages are dropped asynchronously.

this patch also updates QMP to return the number of
skipped pages in MigrationStats.

Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:32:33 +01:00
Peter Lieven
41a259bd2b cutils: add a function to find non-zero content in a buffer
this adds buffer_find_nonzero_offset() which is a SSE2/Altivec
optimized function that searches for non-zero content in a
buffer.

the function starts full unrolling only after the first few chunks have
been checked one by one. analyzing real memory page data has revealed
that non-zero pages are non-zero within the first 256-512 bits in
most cases. as this function is also heavily used to check for zero memory
pages this tweak has been made to avoid the high setup costs of the fully
unrolled check for non-zero pages.

due to the optimizations used in the function there are restrictions
on buffer address and search length. the function
can_use_buffer_find_nonzero_content() can be used to check if
the function can be used safely.

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:32:28 +01:00
Peter Lieven
c61ca00ada move vector definitions to qemu-common.h
vector optimizations will now be used at various places
not just in is_dup_page() in arch_init.c

Signed-off-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:30:49 +01:00
David Gibson
377e2cb96b savevm: Fix bugs in the VMSTATE_VBUFFER_MULTIPLY definition
The VMSTATE_BUFFER_MULTIPLY macro is misnamed - it actually specifies
a variably sized buffer with VMS_VBUFFER, so should be named
VMSTATE_VBUFFER_MULTIPLY.  This patch fixes this (the macro had no current
users under either name).

In addition, unlike the other VMSTATE_VBUFFER variants, this macro did not
specify VMS_POINTER.  This patch fixes this bug as well.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:30:49 +01:00
David Gibson
8474a9dd67 savevm: Add VMSTATE_STRUCT_VARRAY_POINTER_UINT32
Currently the savevm code contains a VMSTATE_STRUCT_VARRAY_POINTER_INT32
helper (a variably sized array with the number of elements in an int32_t),
but not VMSTATE_STRUCT_VARRAY_POINTER_UINT32 (... with the number of
elements in a uint32_t).  This patch (trivially) fixes the deficiency.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:30:49 +01:00
David Gibson
213945e4d7 savevm: Add VMSTATE_FLOAT64 helpers
The current savevm code includes VMSTATE helpers for a number of commonly
used data types, but not for the float64 type used by the internal floating
point emulation code.  This patch fixes the deficiency.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:30:49 +01:00
David Gibson
d58f559834 savevm: Add VMSTATE_UINTTL_EQUAL helper
This adds an _EQUAL VMSTATE helper for target_ulongs, defined in terms of
VMSTATE_UINT32_EQUAL or VMSTATE_UINT64_EQUAL as appropriate.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:30:49 +01:00
David Gibson
e344b8a16d savevm: Add VMSTATE_UINT64_EQUAL helpers
The savevm code already includes a number of *_EQUAL helpers which act as
sanity checks verifying that the configuration of the saved state matches
that of the machine we're loading into to work.  Variants already exist
for 8 bit 16 bit and 32 bit integers, but not 64 bit integers.  This patch
fills that hole, adding a UINT64 version.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2013-03-26 13:30:48 +01:00
Anthony Liguori
dcadaa9b40 Merge remote-tracking branch 'stefanha/net' into staging
# By Dmitry Fleytman (5) and others
# Via Stefan Hajnoczi
* stefanha/net:
  net: increase buffer size to accommodate Jumbo frame pkts
  VMXNET3 device implementation
  Packet abstraction for VMWARE network devices
  Common definitions for VMWARE devices
  net: iovec checksum calculator
  Checksum-related utility functions
  net: use socket_set_nodelay() for -netdev socket
2013-03-25 13:14:26 -05:00
Anthony Liguori
d63c9477e0 glib: add a compatibility interface for g_timeout_add_seconds
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-03-25 13:10:40 -05:00
Scott Feldman
d32fcad366 net: increase buffer size to accommodate Jumbo frame pkts
Socket buffer sizes were hard-coded to 4K for VDE and socket netdevs.  Bump this
up to 68K (ala tap netdev) to handle maximum GSO packet size (64k) plus plenty
of room for the ethernet and virtio_net headers.

Originally, ran into this limitation when using -netdev UDP sockets to connect
VM-to-VM, where VM interface is configure with MTU=9000.  (Using virtio_net
NIC model).  Test is simple: ping -M do -s 8500 <target>.  This test will
attempt to ping with unfragmented packet of given size.  Without patch, size
is limited to < 4K (minus protocol hdrs).  With patch, ping test works with pkt
size up to 9000 (again, minus protocol hdrs).

v2: per Stefan, increase buf size to (4096+65536) as done in tap and apply
    to vde and socket netdevs.
v1: increase buf size to 12K just for -netdev UDP sockets

Signed-off-by: Scott Feldman <sfeldma@cumulusnetworks.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-03-25 11:14:07 +01:00