Commit Graph

3239 Commits

Author SHA1 Message Date
Peter Maydell 5451316ed0 Pull request
v2:
  * Fix virtio 16lx -> HWADDR_PRIx format specifier [Peter]
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

v2:
 * Fix virtio 16lx -> HWADDR_PRIx format specifier [Peter]

# gpg: Signature made Mon 12 Oct 2015 11:19:06 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"

* remotes/stefanha/tags/block-pull-request:
  sdhci.c: Limit the maximum block size
  block: switch from g_slice allocator to malloc
  virtio dataplane: adapt dataplane for virtio Version 1
  virtio-blk: use blk_io_plug/unplug for Linux AIO batching
  sdhci: Pass drive parameter to sdhci-pci via qdev property

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-12 15:52:54 +01:00
Peter Maydell 0bf224d5da -----BEGIN PGP SIGNATURE-----
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Mon 12 Oct 2015 08:56:47 BST using RSA key ID 398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  tests: add test cases for netfilter object
  netfilter: add a netbuffer filter
  net/queue: export qemu_net_queue_append_iov
  netfilter: print filter info associate with the netdev
  netfilter: add an API to pass the packet to next filter
  net/queue: introduce NetQueueDeliverFunc
  net: merge qemu_deliver_packet and qemu_deliver_packet_iov
  netfilter: hook packets before net queue send
  init/cleanup of netfilter object
  vl.c: init delayed object after net_init_clients
  vmxnet3: Add support for VMXNET3_CMD_GET_ADAPTIVE_RING_INFO command
  e1000: use alias for default model
  vmxnet3: Support reading IMR registers on bar0
  net/vmxnet3: Refine l2 header validation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-12 14:29:29 +01:00
Pierre Morel a9718ef000 virtio dataplane: adapt dataplane for virtio Version 1
Let dataplane allocate different region for the desc/avail/used
ring regions.
Take VIRTIO_RING_F_EVENT_IDX into account to increase the used/avail
rings accordingly.

[Fix 32-bit builds by changing 16lx format specifier to HWADDR_PRIx.
--Stefan]

Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Tested-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Message-id: 1441625636-23773-1-git-send-email-pmorel@linux.vnet.ibm.com
(changed __virtio16 into uint16_t,
 map descriptor table and available ring read-only)
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2015-10-12 11:16:45 +01:00
Peter Maydell 7684922390 Fix device introspection regressions
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Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2015-10-09' into staging

Fix device introspection regressions

# gpg: Signature made Fri 09 Oct 2015 14:43:41 BST using RSA key ID EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"

* remotes/armbru/tags/pull-monitor-2015-10-09:
  Revert "qdev: Use qdev_get_device_class() for -device <type>,help"
  qdev: Protect device-list-properties against broken devices
  qmp: Fix device-list-properties not to crash for abstract device
  device-introspect-test: New, covering device introspection
  libqtest: New hmp() & friends
  libqtest: Clean up unused QTestState member sigact_old
  tests: Fix how qom-test is run
  macio: move DBDMA_init from instance_init to realize
  hw: do not pass NULL to memory_region_init from instance_init
  memory: allow destroying a non-empty MemoryRegion
  virtio-input: Fix device introspection on non-Linux hosts
  update-linux-headers: Rename SW_MAX to SW_MAX_

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-12 11:07:38 +01:00
Yang Hongyang b68c7f7692 net/queue: export qemu_net_queue_append_iov
This will be used by buffer filter implementation later to
queue packets.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:31:18 +08:00
Yang Hongyang a4960f52e7 netfilter: print filter info associate with the netdev
When execute "info network", print filter info also.
add a info_str member to NetFilterState, store specific filters
info.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:30:56 +08:00
Yang Hongyang 7ef7bc8586 netfilter: add an API to pass the packet to next filter
add an API qemu_netfilter_pass_to_next() to pass the packet
to next filter.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:30:45 +08:00
Yang Hongyang 3e033a46a7 net/queue: introduce NetQueueDeliverFunc
net/queue.c has logic to send/queue/flush packets but a
qemu_deliver_packet_iov() call is hardcoded. Abstract this
func so that we can use our own deliver function in netfilter.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:30:07 +08:00
Yang Hongyang fefe2a78ab net: merge qemu_deliver_packet and qemu_deliver_packet_iov
qemu_deliver_packet_iov already have the compat delivery, we
can drop qemu_deliver_packet.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:30:04 +08:00
Yang Hongyang e64c770d1f netfilter: hook packets before net queue send
Capture packets that will be sent.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:29:39 +08:00
Yang Hongyang fdccce4596 init/cleanup of netfilter object
Add a netfilter object based on QOM.

A netfilter is attached to a netdev, captures all network packets
that pass through the netdev. When we delete the netdev, we also
delete the netfilter object attached to it, because if the netdev is
removed, the filter which attached to it is useless.

Signed-off-by: Yang Hongyang <yanghy@cn.fujitsu.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:23:40 +08:00
Peter Maydell c9003eb466 virtio-gpu: add 3d rendering support using virgl, misc fixes.
ui/gtk: add opengl context and scanout support (for virtio-gpu).
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-virgl-20151008-1' into staging

virtio-gpu: add 3d rendering support using virgl, misc fixes.
ui/gtk: add opengl context and scanout support (for virtio-gpu).

# gpg: Signature made Thu 08 Oct 2015 10:35:39 BST using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-virgl-20151008-1:
  gtk/opengl: add opengl context and scanout support (GtkGLArea)
  gtk/opengl: add opengl context and scanout support (egl)
  opengl: add egl-context.[ch] helpers
  virtio-gpu: add cursor update tracepoint
  virtio-gpu: add 3d mode and virgl rendering support.
  virtio-gpu: update headers for virgl/3d
  virtio-gpu: change licence from GPLv2 to GPLv2+
  virtio-gpu: move iov free to virtio_gpu_cleanup_mapping_iov
  ui/console: add opengl context and scanout support interfaces.
  sdl2: stop flickering
  shaders: initialize vertexes once

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-09 17:30:03 +01:00
Markus Armbruster 4c315c2766 qdev: Protect device-list-properties against broken devices
Several devices don't survive object_unref(object_new(T)): they crash
or hang during cleanup, or they leave dangling pointers behind.

This breaks at least device-list-properties, because
qmp_device_list_properties() needs to create a device to find its
properties.  Broken in commit f4eb32b "qmp: show QOM properties in
device-list-properties", v2.1.  Example reproducer:

    $ qemu-system-aarch64 -nodefaults -display none -machine none -S -qmp stdio
    {"QMP": {"version": {"qemu": {"micro": 50, "minor": 4, "major": 2}, "package": ""}, "capabilities": []}}
    { "execute": "qmp_capabilities" }
    {"return": {}}
    { "execute": "device-list-properties", "arguments": { "typename": "pxa2xx-pcmcia" } }
    qemu-system-aarch64: /home/armbru/work/qemu/memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed.
    Aborted (core dumped)
    [Exit 134 (SIGABRT)]

Unfortunately, I can't fix the problems in these devices right now.
Instead, add DeviceClass member cannot_destroy_with_object_finalize_yet
to mark them:

* Hang during cleanup (didn't debug, so I can't say why):
  "realview_pci", "versatile_pci".

* Dangling pointer in cpus: most CPUs, plus "allwinner-a10", "digic",
  "fsl,imx25", "fsl,imx31", "xlnx,zynqmp", because they create such
  CPUs

* Assert kvm_enabled(): "host-x86_64-cpu", host-i386-cpu",
  "host-powerpc64-cpu", "host-embedded-powerpc-cpu",
  "host-powerpc-cpu" (the powerpc ones can't currently reach the
  assertion, because the CPUs are only registered when KVM is enabled,
  but the assertion is arguably in the wrong place all the same)

Make qmp_device_list_properties() fail cleanly when the device is so
marked.  This improves device-list-properties from "crashes, hangs or
leaves dangling pointers behind" to "fails".  Not a complete fix, just
a better-than-nothing work-around.  In the above reproducer,
device-list-properties now fails with "Can't list properties of device
'pxa2xx-pcmcia'".

This also protects -device FOO,help, which uses the same machinery
since commit ef52358 "qdev-monitor: include QOM properties in -device
FOO, help output", v2.2.  Example reproducer:

    $ qemu-system-aarch64 -machine none -device pxa2xx-pcmcia,help

Before:

    qemu-system-aarch64: .../memory.c:1307: memory_region_finalize: Assertion `((&mr->subregions)->tqh_first == ((void *)0))' failed.

After:

    Can't list properties of device 'pxa2xx-pcmcia'

Cc: "Andreas Färber" <afaerber@suse.de>
Cc: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Anthony Green <green@moxielogic.com>
Cc: Aurelien Jarno <aurelien@aurel32.net>
Cc: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
Cc: Blue Swirl <blauwirbel@gmail.com>
Cc: Eduardo Habkost <ehabkost@redhat.com>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Jia Liu <proljc@gmail.com>
Cc: Leon Alrae <leon.alrae@imgtec.com>
Cc: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Michael Walle <michael@walle.cc>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: qemu-ppc@nongnu.org
Cc: qemu-stable@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1443689999-12182-10-git-send-email-armbru@redhat.com>
2015-10-09 15:25:57 +02:00
Markus Armbruster ac98fa849e update-linux-headers: Rename SW_MAX to SW_MAX_
The next commit will compile hw/input/virtio-input.c and
hw/input/virtio-input-hid.c even when CONFIG_LINUX is off.  These
files include both "include/standard-headers/linux/input.h" and
<windows.h> then.  Doesn't work, because both define SW_MAX.  We don't
actually use it.  Patch input.h to define SW_MAX_ instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1444320700-26260-2-git-send-email-armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-09 15:22:39 +02:00
Peter Maydell 8be6e623a2 trivial patches for 2015-10-08
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Merge remote-tracking branch 'remotes/mjt/tags/pull-trivial-patches-2015-10-08' into staging

trivial patches for 2015-10-08

# gpg: Signature made Thu 08 Oct 2015 17:51:05 BST 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-2015-10-08:
  tests: Unique test path for /string-visitor/output
  linux-user: Remove type casts to union type
  linux-user: Use g_new() & friends where that makes obvious sense
  rocker: Use g_new() & friends where that makes obvious sense
  .travis.yml: Run make check for all targets, not just some
  hw: char: Remove unnecessary variable
  hw: timer: Remove unnecessary variable
  qapi: add missing @
  MAINTAINERS: Add NSIS file for W32, W64 hosts
  target-ppc: Remove unnecessary variable
  target-microblaze: Remove unnecessary variable
  s/cpu_get_real_ticks/cpu_get_host_ticks/
  pc: check for underflow in load_linux
  pci-assign: do not include sys/io.h
  block/ssh: remove dead code
  imx_serial: Generate interrupt on tx empty if enabled
  sdhci: Change debug prints to compile unconditionally
  sdhci: use PRIx64 for uint64_t type
  Add .dir-locals.el file to configure emacs coding style

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-09 10:45:09 +01:00
Christopher Covington 4a7428c5a7 s/cpu_get_real_ticks/cpu_get_host_ticks/
This should help clarify the purpose of the function that returns
the host system's CPU cycle count.

Signed-off-by: Christopher Covington <cov@codeaurora.org>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
ppc portion
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:01 +03:00
Peter Maydell 1d27b91723 VFIO updates 2015-10-07
- Change platform device IRQ setup sequence for compatibility
    with upcoming IRQ forwarding (Eric Auger)
  - Extensions to support vfio-pci devices on spapr-pci-host-bridge
    (David Gibson) [clang problem patch dropped]
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Merge remote-tracking branch 'remotes/awilliam/tags/vfio-update-20151007.0' into staging

VFIO updates 2015-10-07

 - Change platform device IRQ setup sequence for compatibility
   with upcoming IRQ forwarding (Eric Auger)
 - Extensions to support vfio-pci devices on spapr-pci-host-bridge
   (David Gibson) [clang problem patch dropped]

# gpg: Signature made Wed 07 Oct 2015 16:30:52 BST using RSA key ID 3BB08B22
# gpg: Good signature from "Alex Williamson <alex.williamson@redhat.com>"
# gpg:                 aka "Alex Williamson <alex@shazbot.org>"
# gpg:                 aka "Alex Williamson <alwillia@redhat.com>"
# gpg:                 aka "Alex Williamson <alex.l.williamson@gmail.com>"

* remotes/awilliam/tags/vfio-update-20151007.0:
  vfio: Allow hotplug of containers onto existing guest IOMMU mappings
  memory: Allow replay of IOMMU mapping notifications
  vfio: Record host IOMMU's available IO page sizes
  vfio: Check guest IOVA ranges against host IOMMU capabilities
  vfio: Generalize vfio_listener_region_add failure path
  vfio: Remove unneeded union from VFIOContainer
  hw/vfio/platform: do not set resamplefd for edge-sensitive IRQS
  hw/vfio/platform: change interrupt/unmask fields into pointer
  hw/vfio/platform: irqfd setup sequence update

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-08 16:50:34 +01:00
Gerd Hoffmann 925a040002 gtk/opengl: add opengl context and scanout support (GtkGLArea)
This allows virtio-gpu to render in 3d mode.
Uses native opengl support which is present
in gtk versions 3.16 and newer.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-08 10:34:53 +02:00
Gerd Hoffmann 4782aeb79f gtk/opengl: add opengl context and scanout support (egl)
This allows virtio-gpu to render in 3d mode.
Uses egl, for gtk versions 3.14 and older.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-08 10:34:53 +02:00
Gerd Hoffmann 6c18744d0f opengl: add egl-context.[ch] helpers
Add helper functions to manage opengl contexts using egl.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-08 10:34:53 +02:00
Gerd Hoffmann 9d9e152136 virtio-gpu: add 3d mode and virgl rendering support.
Add virglrenderer library detection.  Add 3d mode to virtio-gpu,
wire up virglrenderer library.  When in 3d mode render using the
new context management and texture scanout callbacks.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2015-10-08 10:31:35 +02:00
Gerd Hoffmann bc79e96442 virtio-gpu: update headers for virgl/3d
Sync with linux kernel headers with virgl/3d patches applied.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-08 10:31:35 +02:00
Gerd Hoffmann 06020b950c ui/console: add opengl context and scanout support interfaces.
Add callbacks for opengl context management and scanout texture
configuration to DisplayChangeListenerOps.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-08 10:31:35 +02:00
Gerd Hoffmann c046d82844 shaders: initialize vertexes once
Create a buffer for the vertex data and place vertexes
there at initialization time.  Then just use the buffer
for each texture blit.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2015-10-08 10:31:35 +02:00
Richard Henderson 126d89e8cd tcg: Adjust CODE_GEN_AVG_BLOCK_SIZE
At present, the "average" guestimate of TB size is way too small, leading
to many unused entries in the pre-allocated TB array.  For a guest with 1GB
ram, we're currently allocating 256MB for the array.

Survey arm, alpha, aarch64, ppc, sparc, i686, x86_64 guests running on
x86_64 and ppc64 hosts and select a new average.  The size of the array
drops to 81MB with no more flushing than before.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:40:00 +11:00
Richard Henderson b125f9dc7b tcg: Check for overflow via highwater mark
We currently pre-compute an worst case code size for any TB, which
works out to be 122kB.  Since the average TB size is near 1kB, this
wastes quite a lot of storage.

Instead, check for overflow in between generating code for each opcode.
The overhead of the check isn't measurable and wastage is minimized.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:53 +11:00
Richard Henderson 4e5e121515 tcg: Remove gen_intermediate_code_pc
It is no longer used, so tidy up everything reached by it.
This includes the gen_opc_* arrays, the search_pc parameter
and the inline gen_intermediate_code_internal functions.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:52 +11:00
Richard Henderson fca8a500d5 tcg: Save insn data and use it in cpu_restore_state_from_tb
We can now restore state without retranslation.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:51 +11:00
Richard Henderson bad729e272 tcg: Pass data argument to restore_state_to_opc
The gen_opc_* arrays are already redundant with the data stored in
the insn_start arguments.  Transition restore_state_to_opc to use
data from the latter.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:51 +11:00
Richard Henderson fec88f64bd tcg: Merge cpu_gen_code into tb_gen_code
As it's only caller, this tidies things a bit.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:49 +11:00
Richard Henderson b933066ae0 target-*: Introduce and use cpu_breakpoint_test
Reduce the boilerplate required for each target.  At the same time,
move the test for breakpoint after calling tcg_gen_insn_start.

Note that arm and aarch64 do not use cpu_breakpoint_test, but still
move the inline test down after tcg_gen_insn_start.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
2015-10-07 20:36:28 +11:00
David Gibson a788f227ef memory: Allow replay of IOMMU mapping notifications
When we have guest visible IOMMUs, we allow notifiers to be registered
which will be informed of all changes to IOMMU mappings.  This is used by
vfio to keep the host IOMMU mappings in sync with guest IOMMU mappings.

However, unlike with a memory region listener, an iommu notifier won't be
told about any mappings which already exist in the (guest) IOMMU at the
time it is registered.  This can cause problems if hotplugging a VFIO
device onto a guest bus which had existing guest IOMMU mappings, but didn't
previously have an VFIO devices (and hence no host IOMMU mappings).

This adds a memory_region_iommu_replay() function to handle this case.  It
replays any existing mappings in an IOMMU memory region to a specified
notifier.  Because the IOMMU memory region doesn't internally remember the
granularity of the guest IOMMU it has a small hack where the caller must
specify a granularity at which to replay mappings.

If there are finer mappings in the guest IOMMU these will be reported in
the iotlb structures passed to the notifier which it must handle (probably
causing it to flag an error).  This isn't new - the VFIO iommu notifier
must already handle notifications about guest IOMMU mappings too short
for it to represent in the host IOMMU.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-10-05 12:39:03 -06:00
David Gibson 7a140a57c6 vfio: Record host IOMMU's available IO page sizes
Depending on the host IOMMU type we determine and record the available page
sizes for IOMMU translation.  We'll need this for other validation in
future patches.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-10-05 12:38:41 -06:00
David Gibson 3898aad323 vfio: Check guest IOVA ranges against host IOMMU capabilities
The current vfio core code assumes that the host IOMMU is capable of
mapping any IOVA the guest wants to use to where we need.  However, real
IOMMUs generally only support translating a certain range of IOVAs (the
"DMA window") not a full 64-bit address space.

The common x86 IOMMUs support a wide enough range that guests are very
unlikely to go beyond it in practice, however the IOMMU used on IBM Power
machines - in the default configuration - supports only a much more limited
IOVA range, usually 0..2GiB.

If the guest attempts to set up an IOVA range that the host IOMMU can't
map, qemu won't report an error until it actually attempts to map a bad
IOVA.  If guest RAM is being mapped directly into the IOMMU (i.e. no guest
visible IOMMU) then this will show up very quickly.  If there is a guest
visible IOMMU, however, the problem might not show up until much later when
the guest actually attempt to DMA with an IOVA the host can't handle.

This patch adds a test so that we will detect earlier if the guest is
attempting to use IOVA ranges that the host IOMMU won't be able to deal
with.

For now, we assume that "Type1" (x86) IOMMUs can support any IOVA, this is
incorrect, but no worse than what we have already.  We can't do better for
now because the Type1 kernel interface doesn't tell us what IOVA range the
IOMMU actually supports.

For the Power "sPAPR TCE" IOMMU, however, we can retrieve the supported
IOVA range and validate guest IOVA ranges against it, and this patch does
so.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-10-05 12:38:13 -06:00
David Gibson ee0bf0e59b vfio: Remove unneeded union from VFIOContainer
Currently the VFIOContainer iommu_data field contains a union with
different information for different host iommu types.  However:
   * It only actually contains information for the x86-like "Type1" iommu
   * Because we have a common listener the Type1 fields are actually used
on all IOMMU types, including the SPAPR TCE type as well

In fact we now have a general structure for the listener which is unlikely
to ever need per-iommu-type information, so this patch removes the union.

In a similar way we can unify the setup of the vfio memory listener in
vfio_connect_container() that is currently split across a switch on iommu
type, but is effectively the same in both cases.

The iommu_data.release pointer was only needed as a cleanup function
which would handle potentially different data in the union.  With the
union gone, it too can be removed.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-10-05 12:36:08 -06:00
Eric Auger a22313deca hw/vfio/platform: change interrupt/unmask fields into pointer
unmask EventNotifier might not be initialized in case of edge
sensitive irq. Using EventNotifier pointers make life simpler to
handle the edge-sensitive irqfd setup.

Signed-off-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-10-05 12:30:12 -06:00
Zhu Guihua dfeb8679db icc_bus: drop the unused files
ICC bus impl has been droped, so all icc related files are not useful
any more; delete them.

Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-10-02 16:22:02 -03:00
Chen Fan 46232aaacb cpu/apic: drop icc bus/bridge
After CPU hotplug has been converted to BUS-less hot-plug infrastructure,
the only function ICC bus performs is to propagate reset to LAPICs. However
LAPIC could be reset by registering its reset handler after all device are
initialized.
Do so and drop ~30LOC of not needed anymore ICCBus related code.

Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-10-02 16:22:02 -03:00
Paolo Bonzini becb66673e target-i386: add ABM to Haswell* and Broadwell* CPU models
ABM is only implemented as a single instruction set by AMD; all AMD
processors support both instructions or neither. Intel considers POPCNT
as part of SSE4.2, and LZCNT as part of BMI1, but Intel also uses AMD's
ABM flag to indicate support for both POPCNT and LZCNT.  It has to be
added to Haswell and Broadwell because Haswell, by adding LZCNT, has
completed the ABM.

Tested with "qemu-kvm -cpu Haswell-noTSX,enforce" (and also with older
machine types) on an Haswell-EP machine.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-10-02 16:22:01 -03:00
Chen Fan ed256144cd cpu: Introduce X86CPUTopoInfo structure for argument simplification
In order to simplify arguments of function, introduce a new struct
named X86CPUTopoInfo.

Signed-off-by: Chen Fan <chen.fan.fnst@cn.fujitsu.com>
Signed-off-by: Zhu Guihua <zhugh.fnst@cn.fujitsu.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-10-02 16:22:01 -03:00
Igor Mammedov aa8580cddf pc: memhp: force gaps between DIMM's GPA
mapping DIMMs non contiguously allows to workaround
virtio bug reported earlier:
http://lists.nongnu.org/archive/html/qemu-devel/2015-08/msg00522.html
in this case guest kernel doesn't allocate buffers
that can cross DIMM boundary keeping each buffer
local to a DIMM.

Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-02 17:04:32 +03:00
Igor Mammedov df0acded19 memhp: extend address auto assignment to support gaps
setting gap to TRUE will make sparse DIMM
address auto allocation, leaving gaps between
a new DIMM address and preceeding existing DIMM.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-02 17:04:32 +03:00
Jason Wang 29b9f5efd7 virtio: introduce virtqueue_discard()
This patch introduces virtqueue_discard() to discard a descriptor and
unmap the sgs. This will be used by the patch that will discard
descriptor when packet is truncated.

Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-01 16:16:52 +03:00
Jason J. Herne 2adcc85d40 cpu: Provide vcpu throttling interface
Provide a method to throttle guest cpu execution. CPUState is augmented with
timeout controls and throttle start/stop functions. To throttle the guest cpu
the caller simply has to call the throttle set function and provide a percentage
of throttle time.

Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
2015-09-30 09:42:04 +02:00
Dr. David Alan Gilbert 56f3835ff1 migration: qemu-file more size_t'ifying
This time convert the external functions:
  qemu_get_buffer, qemu_peek_buffer
  qemu_put_buffer and qemu_put_buffer_async

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1439463094-5394-6-git-send-email-dgilbert@redhat.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2015-09-29 11:33:02 +05:30
Dr. David Alan Gilbert a202a4c001 migration: size_t'ify some of qemu-file
This is a start on using size_t more in qemu-file and friends;
it fixes up QEMUFilePutBufferFunc and QEMUFileGetBufferFunc
to take size_t lengths and return ssize_t return values (like read(2))
and fixes up all the different implementations of them.

Note that I've not yet followed this deeply into bdrv_ implementations.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1439463094-5394-5-git-send-email-dgilbert@redhat.com>
Reviewed-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2015-09-29 11:33:02 +05:30
Soren Brinkmann eb5c936e81 vmstate: Remove redefinition of VMSTATE_UINT32_ARRAY
The macro is defined twice in identical ways.

Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Message-Id: <1439532987-16335-1-git-send-email-soren.brinkmann@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2015-09-29 11:32:45 +05:30
Peter Maydell 9e071429e6 * First batch of MAINTAINERS updates
* IOAPIC fixes (to pass kvm-unit-tests with -machine kernel_irqchip=off)
 * NBD API upgrades from Daniel
 * strtosz fixes from Marc-André
 * improved support for readonly=on on scsi-generic devices
 * new "info ioapic" and "info lapic" monitor commands
 * Peter Crosthwaite's ELF_MACHINE cleanups
 * docs patches from Thomas and Daniel
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* First batch of MAINTAINERS updates
* IOAPIC fixes (to pass kvm-unit-tests with -machine kernel_irqchip=off)
* NBD API upgrades from Daniel
* strtosz fixes from Marc-André
* improved support for readonly=on on scsi-generic devices
* new "info ioapic" and "info lapic" monitor commands
* Peter Crosthwaite's ELF_MACHINE cleanups
* docs patches from Thomas and Daniel

# gpg: Signature made Fri 25 Sep 2015 11:20:52 BST using RSA key ID 78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"

* remotes/bonzini/tags/for-upstream: (52 commits)
  doc: Refresh URLs in the qemu-tech documentation
  docs: describe the QEMU build system structure / design
  typedef: add typedef for QemuOpts
  i386: interrupt poll processing
  i386: partial revert of interrupt poll fix
  ppc: Rename ELF_MACHINE to be PPC specific
  i386: Rename ELF_MACHINE to be x86 specific
  alpha: Remove ELF_MACHINE from cpu.h
  mips: Remove ELF_MACHINE from cpu.h
  sparc: Remove ELF_MACHINE from cpu.h
  s390: Remove ELF_MACHINE from cpu.h
  sh4: Remove ELF_MACHINE from cpu.h
  xtensa: Remove ELF_MACHINE from cpu.h
  tricore: Remove ELF_MACHINE from cpu.h
  or32: Remove ELF_MACHINE from cpu.h
  lm32: Remove ELF_MACHINE from cpu.h
  unicore: Remove ELF_MACHINE from cpu.h
  moxie: Remove ELF_MACHINE from cpu.h
  cris: Remove ELF_MACHINE from cpu.h
  m68k: Remove ELF_MACHINE from cpu.h
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-25 21:52:30 +01:00
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Merge remote-tracking branch 'remotes/cody/tags/block-pull-request' into staging

# gpg: Signature made Fri 25 Sep 2015 16:47:31 BST using RSA key ID C0DE3057
# gpg: Good signature from "Jeffrey Cody <jcody@redhat.com>"
# gpg:                 aka "Jeffrey Cody <jeff@codyprime.org>"
# gpg:                 aka "Jeffrey Cody <codyprime@gmail.com>"

* remotes/cody/tags/block-pull-request:
  sheepdog: refine discard support
  sheepdog: use per AIOCB dirty indexes for non overlapping requests
  Backup: don't do copy-on-read in before_write_notifier
  block: Introduce a new API bdrv_co_no_copy_on_readv()
  sheepdog: add reopen support
  block/nfs: cache allocated filesize for read-only files
  block/nfs: fix calculation of allocated file size

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-25 19:01:46 +01:00
Peter Maydell 690b286fef Remove muldiv64() by using period instead of frequency
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Merge remote-tracking branch 'remotes/vivier-misc/tags/pull-muldiv64-20150925' into staging

Remove muldiv64() by using period instead of frequency

# gpg: Signature made Fri 25 Sep 2015 14:54:37 BST using RSA key ID 3F2FBE3C
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>"
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>"
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@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: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier-misc/tags/pull-muldiv64-20150925:
  net: remove muldiv64()
  bt: remove muldiv64()
  hpet: remove muldiv64()
  arm: clarify the use of muldiv64()
  openrisc: remove muldiv64()
  mips: remove muldiv64()
  pcnet: remove muldiv64()
  rtl8139: remove muldiv64()
  i6300esb: remove muldiv64()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-09-25 18:03:19 +01:00