Commit Graph

14542 Commits

Author SHA1 Message Date
Peter Maydell
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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
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
Shmulik Ladkani
d62241eb6d vmxnet3: Add support for VMXNET3_CMD_GET_ADAPTIVE_RING_INFO command
Some drivers (e.g. vmware-tools) issue the VMXNET3_CMD_GET_ADAPTIVE_RING_INFO
command.

Currently, due to lack of support, a bogus value (-1) is returned.

Support this command, returning the "adaptive-ring disabled" flag.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:19:29 +08:00
Jason Wang
8304402033 e1000: use alias for default model
Instead of duplicating the "e1000-82540em" device model as "e1000",
make the latter an alias for the former.

Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2015-10-12 13:19:29 +08:00
Shmulik Ladkani
c6048f849c vmxnet3: Support reading IMR registers on bar0
Instead of asserting, return the actual IMR register value.
This is aligned with what's returned on ESXi.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Tested-by: Dana Rubin <dana.rubin@ravellosystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:19:29 +08:00
Dana Rubin
a7278b36fc net/vmxnet3: Refine l2 header validation
Validation of l2 header length assumed minimal packet size as
eth_header + 2 * vlan_header regardless of the actual protocol.

This caused crash for valid non-IP packets shorter than 22 bytes, as
'tx_pkt->packet_type' hasn't been assigned for such packets, and
'vmxnet3_on_tx_done_update_stats()' expects it to be properly set.

Refine header length validation in 'vmxnet_tx_pkt_parse_headers'.
Check its return value during packet processing flow.

As a side effect, in case IPv4 and IPv6 header validation failure,
corrupt packets will be dropped.

Signed-off-by: Dana Rubin <dana.rubin@ravellosystems.com>
Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-10-12 13:19:29 +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
Paolo Bonzini
c710440235 macio: move DBDMA_init from instance_init to realize
DBDMA_init is not idempotent, and calling it from instance_init
breaks a simple object_new/object_unref pair.  Work around this,
pending qdev-ification of DBDMA, by moving the call to realize.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1443689999-12182-4-git-send-email-armbru@redhat.com>
2015-10-09 15:25:57 +02:00
Paolo Bonzini
81e0ab48dd hw: do not pass NULL to memory_region_init from instance_init
This causes the region to outlive the object, because it attaches the
region to /machine.  This is not nice for the "realize" method, but
much worse for "instance_init" because it can cause dangling pointers
after a simple object_new/object_unref pair.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1443689999-12182-3-git-send-email-armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
2015-10-09 15:25:56 +02:00
Markus Armbruster
c6047e9621 virtio-input: Fix device introspection on non-Linux hosts
When CONFIG_LINUX is off, devices "virtio-keyboard-device",
"virtio-mouse-device", "virtio-tablet-device" and
"virtio-input-host-device" aren't compiled in, yet
"virtio-keyboard-pci", "virtio-mouse-pci", "virtio-tablet-pci" and
"virtio-input-host-pci" still are.  Attempts to introspect them crash,
e.g.

    $ qemu-system-x86_64 -device virtio-tablet-pci,help
    **
    ERROR:/work/armbru/qemu/qom/object.c:333:object_initialize_with_type: assertion failed: (type != NULL)

Broken in commit 710e2d9 and commit 006a5ed.

Fix by compiling the "virtio-FOO-pci" exactly when compiling the
"virtio-FOO-device": compile "virtio-keyboard-device",
"virtio-mouse-device", "virtio-tablet-device" regardless of
CONFIG_LINUX, and compile "virtio-input-host-pci" only for
CONFIG_LINUX.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <1444320700-26260-3-git-send-email-armbru@redhat.com>
2015-10-09 15:25:56 +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
Markus Armbruster
778358d0a8 rocker: Use g_new() & friends where that makes obvious sense
g_new(T, n) is neater than g_malloc(sizeof(T) * n).  It's also safer,
for two reasons.  One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.

This commit only touches allocations with size arguments of the form
sizeof(T).  Same Coccinelle semantic patchas in commit b45c03f.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:47 +03:00
Shraddha Barke
65cb2a14ca hw: char: Remove unnecessary variable
Compress lines and remove the variable.

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:47 +03:00
Shraddha Barke
bf5f78efed hw: timer: Remove unnecessary variable
Compress lines and remove the variable.

Signed-off-by: Shraddha Barke <shraddha.6596@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:47 +03:00
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
Paolo Bonzini
ec5fd40264 pc: check for underflow in load_linux
If (setup_size+1)*512 is small enough, kernel_size -= setup_size can allocate
a huge amount of memory.  Avoid that.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:01 +03:00
Paolo Bonzini
16033ba577 pci-assign: do not include sys/io.h
This file does not exist on bionic libc and the functions it defines
are in fact not used by pci-assign.c.  Remove it.

Reported-by: Houcheng Lin <houcheng@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:01 +03:00
Guenter Roeck
dc1442204a imx_serial: Generate interrupt on tx empty if enabled
Generate an interrupt if the tx buffer is empty and the tx empty interrupt
is enabled. This fixes a problem seen when running a Linux image since
Linux commit 55c3cb1358e ("serial: imx: remove unneeded imx_transmit_buffer()
from imx_start_tx()"). Linux now waits for the tx empty interrupt before
starting to send data, causing transmit stalls until there is an interrupt
for another reason.

Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:01 +03:00
Sai Pavan Boddu
7af0fc994e sdhci: Change debug prints to compile unconditionally
Conditional compilation hides few type mismatch warnings, fix it to
compile unconditionally.

Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com>
Suggested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2015-10-08 19:46:01 +03:00
Sai Pavan Boddu
be9c5ddeab sdhci: use PRIx64 for uint64_t type
Fix compile time warnings, because of type mismatch for unsigned long
long type.

Signed-off-by: Sai Pavan Boddu <saipava@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
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
Peter Maydell
fb6345f452 NUMA queue, 2015-10-06
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Merge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging

NUMA queue, 2015-10-06

# gpg: Signature made Tue 06 Oct 2015 20:53:42 BST using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"

* remotes/ehabkost/tags/numa-pull-request:
  pc-dimm: Fail realization for invalid nodes in non-NUMA config

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-08 11:28:17 +01:00
Gerd Hoffmann
e9c1b459f2 virtio-gpu: add cursor update tracepoint
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-08 10:33:21 +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
2e2521452e virtio-gpu: change licence from GPLv2 to GPLv2+
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-08 10:31:35 +02:00
Gerd Hoffmann
7f3be0f20f virtio-gpu: move iov free to virtio_gpu_cleanup_mapping_iov
For symmetry reasons: virtio_gpu_create_mapping_iov() allocates it so
virtio_gpu_cleanup_mapping_iov() should free it, otherwise it's easy to
miss a free() needed and leak memory.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
2015-10-08 10:31:35 +02:00
Bharata B Rao
32532f215c pc-dimm: Fail realization for invalid nodes in non-NUMA config
pc_dimm_realize() validates the NUMA node to which memory hotplug is
being performed only in case of NUMA configuration. Include a check to
fail for invalid nodes in case of non-NUMA configuration too.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2015-10-06 16:51:08 -03:00
Peter Maydell
eed2df6785 s390: fixes
Some fixes all over the place:
 - ccw bios and gcc 5.1 (avoid floating point ops)
 - properly print vector registers
 - sclp and sclp-event-facility no longer hang on object_unref(object_new(T))
 - better name for io_subsystem_reset
 
 One feature
 - the gdb server now exposes several virtualization specific register
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Merge remote-tracking branch 'remotes/borntraeger/tags/s390x-20151006' into staging

s390: fixes

Some fixes all over the place:
- ccw bios and gcc 5.1 (avoid floating point ops)
- properly print vector registers
- sclp and sclp-event-facility no longer hang on object_unref(object_new(T))
- better name for io_subsystem_reset

One feature
- the gdb server now exposes several virtualization specific register

# gpg: Signature made Tue 06 Oct 2015 11:20:24 BST using RSA key ID B5A61C7C
# gpg: Good signature from "Christian Borntraeger (IBM) <borntraeger@de.ibm.com>"

* remotes/borntraeger/tags/s390x-20151006:
  s390x: rename io_subsystem_reset -> subsystem_reset
  s390x/info registers: print vector registers properly
  s390x: set missing parent for hotplug and quiesce events
  s390x/gdb: expose virtualization specific registers
  pc-bios/s390-ccw: avoid floating point operations

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-10-06 16:32:16 +01:00
David Gibson
508ce5eb00 vfio: Allow hotplug of containers onto existing guest IOMMU mappings
At present the memory listener used by vfio to keep host IOMMU mappings
in sync with the guest memory image assumes that if a guest IOMMU
appears, then it has no existing mappings.

This may not be true if a VFIO device is hotplugged onto a guest bus
which didn't previously include a VFIO device, and which has existing
guest IOMMU mappings.

Therefore, use the memory_region_register_iommu_notifier_replay()
function in order to fix this case, replaying existing guest IOMMU
mappings, bringing the host IOMMU into sync with the guest IOMMU.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2015-10-05 12:39:47 -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
ac6dc3894f vfio: Generalize vfio_listener_region_add failure path
If a DMA mapping operation fails in vfio_listener_region_add() it
checks to see if we've already completed initial setup of the
container.  If so it reports an error so the setup code can fail
gracefully, otherwise throws a hw_error().

There are other potential failure cases in vfio_listener_region_add()
which could benefit from the same logic, so move it to its own
fail: block.  Later patches can use this to extend other failure cases
to fail as gracefully as possible under the circumstances.

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 12:37:02 -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
a5b39cd3f6 hw/vfio/platform: do not set resamplefd for edge-sensitive IRQS
In irqfd mode, current code attempts to set a resamplefd whatever
the type of the IRQ. For an edge-sensitive IRQ this attempt fails
and as a consequence, the whole irqfd setup fails and we fall back
to the slow mode. This patch bypasses the resamplefd setting for
non level-sentive IRQs.

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
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
Eric Auger
58892b447f hw/vfio/platform: irqfd setup sequence update
With current implementation, eventfd VFIO signaling is first set up and
then irqfd is setup, if supported and allowed.

This start sequence causes several issues with IRQ forwarding setup
which, if supported, is transparently attempted on irqfd setup:
IRQ forwarding setup is likely to fail if the IRQ is detected as under
injection into the guest (active at irqchip level or VFIO masked).

This currently always happens because the current sequence explicitly
VFIO-masks the IRQ before setting irqfd.

Even if that masking were removed, we couldn't prevent the case where
the IRQ is under injection into the guest.

So the simpler solution is to remove this 2-step startup and directly
attempt irqfd setup. This is what this patch does.

Also in case the eventfd setup fails, there is no reason to go farther:
let's abort.

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
Zhu Guihua
ae50c55a09 x86: use new method to correct reset sequence
During reset some devices (such as hpet, rtc) might send IRQ to APIC
which changes APIC's state from default one it's supposed to have
at machine startup time.
Fix this by resetting APIC after devices have been reset to cancel
any changes that qemu_devices_reset() might have done to its state.

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
8d42d2d32b apic: move APIC's MMIO region mapping into APIC
When ICC bus/bridge is removed, APIC MMIO will be left
unmapped since it was mapped into system's address space
indirectly by ICC bridge.
Fix it by moving mapping into APIC code, so it would be
possible to remove ICC bus/bridge code later.

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
Eduardo Habkost
5114e84222 target-i386: Convert kvm_default_*features to property/value pairs
Convert the kvm_default_features and kvm_default_unset_features arrays
into a simple list of property/value pairs that will be applied to
X86CPU objects when using KVM.

Acked-by: Paolo Bonzini <pbonzini@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
David Hildenbrand
d9f090ec77 s390x: rename io_subsystem_reset -> subsystem_reset
According to the Pop:
"Subsystem reset operates only on those elements in the configuration
which are not CPUs".

As this is what we actually do, let's simply rename the function.

Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1443689387-34473-6-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-10-02 13:31:52 +02:00
David Hildenbrand
7059384c7e s390x: set missing parent for hotplug and quiesce events
Existing code missed to set a parent for the quiesce and hotplug event.
While this didn't matter in practise, new introspection APIs basically now
do an object_unref(object_new(T)), which loops forever.

When trying to remove the event facility bus, the code tries to
unparent all childs on the bus, so they are properly deleted and therefore removed.
As object_unparent() on these child devices doesn't work, as there is no parent,
we loop forever.

Let's fix this by adding the event facility as a parent. Also switch from
object_initialize to object_new, so the only valid reference is in fact the
parent property. This makes it more obvious when the device (state) is actually
gone (and how the reference counting works).

Signed-off-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Message-Id: <1443689387-34473-4-git-send-email-jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2015-10-02 13:31:52 +02:00
Richard Henderson
0d583647a7 virtio: Notice when the system doesn't support MSIx at all
And do not issue an error_report in that case.

Signed-off-by: Richard Henderson <rth@twiddle.net>
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
Eduardo Habkost
798595075b pc: Add a comment explaining why pc_compat_2_4() doesn't exist
pc_compat_2_4() doesn't exist, and we shouldn't create one. Add a
comment explaining why the function doesn't exist and why pc_compat_*()
functions are deprecated.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-10-01 16:16:52 +03:00
Jason Wang
0cf33fb6b4 virtio-net: correctly drop truncated packets
When packet is truncated during receiving, we drop the packets but
neither discard the descriptor nor add and signal used
descriptor. This will lead several issues:

- sg mappings are leaked
- rx will be stalled if a lots of packets were truncated

In order to be consistent with vhost, fix by discarding the descriptor
in this case.

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