Commit Graph

42595 Commits

Author SHA1 Message Date
Thomas Huth
9b7a70e63e hw/ppc/spapr: Remove duplicated "pseries" alias
The "pseries" alias is currently set twice, one time for the
pseries-2.4 machine and one time for the "pseries-2.5" machine.
To avoid confusion with the alias, let's remove the one from
the older machine class. And while we're at it, also remove
the "is_default = 0" there since the is_default variable
should be set to zero by default already.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-11-30 19:39:00 +11:00
Hervé Poussineau
7f0d763ce6 mac_dbdma: always initialize channel field in DBDMA_channel
dbdma_from_ch() uses channel field to return the right DBDMA object.
Previous code was working if guest OS was only using registered DMA channels.
However, it lead to QEMU crashes if guest OS was using unregistered DMA channels.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2015-11-30 19:38:44 +11:00
Peter Maydell
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Fri 27 Nov 2015 02:42:02 GMT 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:
  tap-win32: disable broken async write path
  tap-win32: skip unexpected nodes during registry enumeration
  eepro100: Prevent two endless loops

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-27 10:44:42 +00:00
Andrew Baumann
b73c184914 tap-win32: disable broken async write path
The code under the TUN_ASYNCHRONOUS_WRITES path makes two incorrect
assumptions about the behaviour of the WriteFile API for overlapped
file handles. First, WriteFile does not update the
lpNumberOfBytesWritten parameter when the write completes
asynchronously (the number of bytes written is known only when the
operation completes). Second, the buffer shouldn't be touched (or
freed) until the operation completes. This led to at least one bug
where tap_win32_write returned zero bytes written, which in turn
caused further writes ("receives") to be disabled for that device.

This change disables the asynchronous write path, while keeping most
of the code around in case someone sees value in resurrecting it. It
also adds some conditional debug output, similar to the read path.

Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Acked-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-11-27 10:39:55 +08:00
Andrew Baumann
ee0428e3ac tap-win32: skip unexpected nodes during registry enumeration
In order to find a named tap device, get_device_guid() enumerates children of
HKLM\SYSTEM\CCS\Control\Network\{4D36E972-E325-11CE-BFC1-08002BE10318}
(aka NETWORK_CONNECTIONS_KEY). For each child, it then looks for a
"Connection" subkey, but if this key doesn't exist, it aborts the
entire search. This was observed to fail on at least one Windows 10
machine, where there is an additional child of NETWORK_CONNECTIONS_KEY
(named "Descriptions"). Since registry enumeration doesn't guarantee
any particular sort order, we should continue to search for matching
children rather than aborting the search.

Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-11-27 10:39:55 +08:00
Stefan Weil
00837731d2 eepro100: Prevent two endless loops
http://lists.nongnu.org/archive/html/qemu-devel/2015-11/msg04592.html
shows an example how an endless loop in function action_command can
be achieved.

During my code review, I noticed a 2nd case which can result in an
endless loop.

Reported-by: Qinghao Tang <luodalongde@gmail.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2015-11-27 10:39:55 +08:00
Peter Maydell
b04fc42835 Update version for v2.5.0-rc2 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 17:50:12 +00:00
Peter Maydell
72f75c76d8 vhost, pc: fixes for 2.5
Minor vhost fixes.  HW version tweak for PC.
 Documentation and test updates.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

vhost, pc: fixes for 2.5

Minor vhost fixes.  HW version tweak for PC.
Documentation and test updates.

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

# gpg: Signature made Thu 26 Nov 2015 16:40:25 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"

* remotes/mst/tags/for_upstream:
  vhost-user-test: fix migration overlap test
  Fix memory leak on error
  Revert "vhost: send SET_VRING_ENABLE at start/stop"
  tests/vhost-user-bridge: read command line arguments
  tests/vhost-user-bridge: propose GUEST_ANNOUNCE feature
  vhost-user: clarify start and enable
  vhost-user: set link down when the char device is closed
  pc: Don't set hw_version on pc-*-2.5
  osdep: Change default value of qemu_hw_version() to "2.5+"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 16:50:59 +00:00
Michael S. Tsirkin
d08e42a112 vhost-user-test: fix migration overlap test
During migration, source does GET_BASE, destination does SET_BASE.
Use that as opposed to fds being configured to detect
vhost user running on both source and destination.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-26 18:39:34 +02:00
Peter Maydell
a5df35070a QMP and QObject patches
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Merge remote-tracking branch 'remotes/armbru/tags/pull-monitor-2015-11-26' into staging

QMP and QObject patches

# gpg: Signature made Thu 26 Nov 2015 09:07:18 GMT 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-2015-11-26:
  qjson: Limit number of tokens in addition to total size
  qjson: surprise, allocating 6 QObjects per token is expensive
  qjson: store tokens in a GQueue
  qjson: Convert to parser to recursive descent
  qjson: replace QString in JSONLexer with GString
  qjson: Inline token_is_escape() and simplify
  qjson: Inline token_is_keyword() and simplify
  qjson: Give each of the six structural chars its own token type
  qjson: Spell out some silent assumptions
  check-qjson: Add test for JSON nesting depth limit
  qjson: Don't crash when input exceeds nesting limit
  qjson: Apply nesting limit more sanely
  monitor: Plug memory leak on QMP error

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 16:27:26 +00:00
Peter Maydell
317e4db6e9 Small patches, without the one that introduces -fwrapv.
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

Small patches, without the one that introduces -fwrapv.

# gpg: Signature made Thu 26 Nov 2015 15:48:53 GMT 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:
  target-i386: kvm: Print warning when clearing mcg_cap bits
  target-i386: kvm: Use env->mcg_cap when setting up MCE
  target-i386: kvm: Abort if MCE bank count is not supported by host
  virtio-scsi: don't crash without a valid device
  target-sparc: fix 32-bit truncation in fpackfix
  exec: remove warning about mempath and hugetlbfs
  Revert "exec: silence hugetlbfs warning under qtest"
  call bdrv_drain_all() even if the vm is stopped
  MAINTAINERS: Update TCG CPU cores section

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 15:56:53 +00:00
Eduardo Habkost
5120901a37 target-i386: kvm: Print warning when clearing mcg_cap bits
Instead of silently clearing mcg_cap bits when the host doesn't
support them, print a warning when doing that.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
[Avoid \n at end of error_report. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1448471956-66873-10-git-send-email-pbonzini@redhat.com>
2015-11-26 16:48:16 +01:00
Eduardo Habkost
2590f15b13 target-i386: kvm: Use env->mcg_cap when setting up MCE
When setting up MCE, instead of using the MCE_*_DEF macros
directly, just filter the existing env->mcg_cap value.

As env->mcg_cap is already initialized as
MCE_CAP_DEF|MCE_BANKS_DEF at target-i386/cpu.c:mce_init(), this
doesn't change any behavior. But it will allow us to change
mce_init() in the future, to implement different defaults
depending on CPU model, machine-type or command-line parameters.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1448471956-66873-9-git-send-email-pbonzini@redhat.com>
2015-11-26 16:48:11 +01:00
Eduardo Habkost
49b69cbfcd target-i386: kvm: Abort if MCE bank count is not supported by host
Instead of silently changing the number of banks in mcg_cap based
on kvm_get_mce_cap_supported(), abort initialization if the host
doesn't support MCE_BANKS_DEF banks.

Note that MCE_BANKS_DEF was always 10 since it was introduced in
QEMU, and Linux always returned 32 at KVM_CAP_MCE since
KVM_CAP_MCE was introduced, so no behavior is being changed and
the error can't be triggered by any Linux version. The point of
the new check is to ensure we won't silently change the bank
count if we change MCE_BANKS_DEF or make the bank count
configurable in the future.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
[Avoid Yoda condition and \n at end of error_report. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1448471956-66873-8-git-send-email-pbonzini@redhat.com>
2015-11-26 16:48:07 +01:00
Eugene (jno) Dvurechenski
3e32e8a96e virtio-scsi: don't crash without a valid device
Make sure that we actually have a device when checking the aio
context. Otherwise guests could trigger QEMU crashes.

Signed-off-by: "Eugene (jno) Dvurechenski" <jno@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Message-Id: <1448549135-6582-2-git-send-email-jno@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-26 16:47:44 +01:00
Paolo Bonzini
12a3567c40 target-sparc: fix 32-bit truncation in fpackfix
This is reported by Coverity.  The algorithm description at
ftp://ftp.icm.edu.pl/packages/ggi/doc/hw/sparc/Sparc.pdf suggests
that the 32-bit parts of rs2, after the left shift, is treated
as a 64-bit integer.  Bits 32 and above are used to do the
saturating truncation.

Message-Id: <1446473134-4330-1-git-send-email-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-26 16:47:44 +01:00
Daniel P. Berrange
bfc2a1a1f4 exec: remove warning about mempath and hugetlbfs
The gethugepagesize() method in exec.c printed a warning if
the file path for "-mem-path" or "-object memory-backend-file"
was not on a hugetlbfs filesystem. This warning is bogus, because
QEMU functions perfectly well with the path on a regular tmpfs
filesystem. Use of hugetlbfs vs tmpfs is a choice for the management
application or end user to make as best fits their needs. As such it
is inappropriate for QEMU to have an opinion on whether the user's
choice is right or wrong in this case.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1448448749-1332-3-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-26 16:47:44 +01:00
Daniel P. Berrange
2c189a4e12 Revert "exec: silence hugetlbfs warning under qtest"
This reverts commit 1c7ba94a18.

That commit changed QEMU initialization order from

 - object-initial, chardev, qtest, object-late

to

 - chardev, qtest, object-initial, object-late

This breaks chardev setups which need to rely on objects
having been created. For example, when chardevs use TLS
encryption in the future, they need to have tls credential
objects created first.

This revert, restores the ordering introduced in

  commit f08f9271bf
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Wed May 13 17:14:04 2015 +0100

    vl: Create (most) objects before creating chardev backends

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-Id: <1448448749-1332-2-git-send-email-berrange@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-26 16:47:44 +01:00
Wen Congyang
b2780d3253 call bdrv_drain_all() even if the vm is stopped
There are still I/O operations when the vm is stopped. For example,
stop the vm, and do block migration. In this case, we don't drain all
I/O operation, and may meet the following problem:

qemu-system-x86_64: migration/block.c:731: block_save_complete: Assertion `block_mig_state.submitted == 0' failed.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Message-Id: <564EE92E.4070701@cn.fujitsu.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-11-26 16:47:44 +01:00
Stefano Dong (董兴水)
903a41d341 Fix memory leak on error
hw/ppc/spapr.c: Fix memory leak on error, it was introduced in bc09e0611
hw/acpi/memory_hotplug.c: Fix memory leak on error, it was introduced in 34f2af3d

Signed-off-by: Stefano Dong (董兴水) <opensource.dxs@aliyun.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2015-11-26 14:27:52 +02:00
Peter Maydell
fe4cf57da7 vnc: fix segfault
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-vnc-20151126-1' into staging

vnc: fix segfault

# gpg: Signature made Thu 26 Nov 2015 07:37:43 GMT using RSA key ID D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-vnc-20151126-1:
  vnc: fix segfault

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 10:58:10 +00:00
Peter Maydell
b8b0ee0ea3 qemu-ga patch queue for 2.5
* include additional w32 MSI install components needed for
   guest-exec
 * fix 'make install' when compiling with --disable-tools
 * fix potential data corruption/loss when accessing files
   bi-directionally via guest-file-{read,write}
 * explicitly document how integer args for guest-file-seek map to
   SEEK_SET/SEEK_CUR/etc to avoid platform-specific differences
 
 v2:
 * fixed missing SoB
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Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2015-11-25-v2-tag' into staging

qemu-ga patch queue for 2.5

* include additional w32 MSI install components needed for
  guest-exec
* fix 'make install' when compiling with --disable-tools
* fix potential data corruption/loss when accessing files
  bi-directionally via guest-file-{read,write}
* explicitly document how integer args for guest-file-seek map to
  SEEK_SET/SEEK_CUR/etc to avoid platform-specific differences

v2:
* fixed missing SoB

# gpg: Signature made Wed 25 Nov 2015 23:58:45 GMT using RSA key ID F108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg:                 aka "Michael Roth <mdroth@utexas.edu>"
# gpg:                 aka "Michael Roth <mdroth@linux.vnet.ibm.com>"

* remotes/mdroth/tags/qga-pull-2015-11-25-v2-tag:
  qga: added another non-interactive gspawn() helper file.
  qga: Better mapping of SEEK_* in guest-file-seek
  tests: add file-write-read test
  qga: flush explicitly when needed
  qga: gspawn() console helper to Windows guest agent msi build
  makefile: fix qemu-ga make install for --disable-tools

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 10:24:18 +00:00
Michael S. Tsirkin
449e357810 Revert "vhost: send SET_VRING_ENABLE at start/stop"
This reverts commit 3a12f32229.

In case of live migration several queues can be enabled and not only the
first one. So informing backend that only the first queue is enabled is
wrong.

Reported-by: Thibaut Collet <thibaut.collet@6wind.com>
Cc: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
2015-11-26 12:02:11 +02:00
Peter Maydell
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Merge remote-tracking branch 'remotes/jnsnow/tags/ide-pull-request' into staging

# gpg: Signature made Wed 25 Nov 2015 20:25:21 GMT using RSA key ID AAFC390E
# gpg: Good signature from "John Snow (John Huston) <jsnow@redhat.com>"

* remotes/jnsnow/tags/ide-pull-request:
  ide-test: fix timeouts
  atapi: Fix code indentation
  atapi: Account for failed and invalid operations in cd_read_sector()
  ide-test: cdrom_pio_impl fixup

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-26 09:44:25 +00:00
Markus Armbruster
df649835fe qjson: Limit number of tokens in addition to total size
Commit 29c75dd "json-streamer: limit the maximum recursion depth and
maximum token count" attempts to guard against excessive heap usage by
limiting total token size (it says "token count", but that's a lie).

Total token size is a rather imprecise predictor of heap usage: many
small tokens use more space than few large tokens with the same input
size, because there's a constant per-token overhead: 37 bytes on my
system.

Tighten this up: limit the token count to 2Mi.  Chosen to roughly
match the 64MiB total token size limit.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1448486613-17634-13-git-send-email-armbru@redhat.com>
2015-11-26 10:07:07 +01:00
Paolo Bonzini
9bada89711 qjson: surprise, allocating 6 QObjects per token is expensive
Replace the contents of the tokens GQueue with a simple struct.  This cuts
the amount of memory allocated by tests/check-qjson from ~500MB to ~20MB,
and the execution time from 600ms to 80ms on my laptop.  Still a lot (some
could be saved by using an intrusive list, such as QSIMPLEQ, instead of
the GQueue), but the savings are already massive and the right thing to
do would probably be to get rid of json-streamer completely.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1448300659-23559-5-git-send-email-pbonzini@redhat.com>
[Straightforwardly rebased on my patches]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 10:07:07 +01:00
Paolo Bonzini
95385fe9ac qjson: store tokens in a GQueue
Even though we still have the "streamer" concept, the tokens can now
be deleted as they are read.  While doing so convert from QList to
GQueue, since the next step will make tokens not a QObject and we
will have to do the conversion anyway.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1448300659-23559-4-git-send-email-pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 10:07:07 +01:00
Markus Armbruster
d538b25543 qjson: Convert to parser to recursive descent
We backtrack in parse_value(), even though JSON is LL(1) and thus can
be parsed by straightforward recursive descent.  Do exactly that.

Based on an almost-correct patch from Paolo Bonzini.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1448486613-17634-10-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 10:06:57 +01:00
Paolo Bonzini
d2ca7c0b0d qjson: replace QString in JSONLexer with GString
JSONLexer only needs a simple resizable buffer.  json-streamer.c
can allocate memory for each token instead of relying on reference
counting of QStrings.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1448300659-23559-2-git-send-email-pbonzini@redhat.com>
[Straightforwardly rebased on my patches, checkpatch made happy]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 09:31:22 +01:00
Markus Armbruster
6b9606f68e qjson: Inline token_is_escape() and simplify
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1448486613-17634-8-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 09:27:23 +01:00
Markus Armbruster
50e2a467f5 qjson: Inline token_is_keyword() and simplify
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1448486613-17634-7-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 09:22:57 +01:00
Markus Armbruster
c54616608a qjson: Give each of the six structural chars its own token type
Simplifies things, because we always check for a specific one.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1448486613-17634-6-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 09:22:54 +01:00
Markus Armbruster
b8d3b1da3c qjson: Spell out some silent assumptions
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1448486613-17634-5-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2015-11-26 09:18:45 +01:00
Markus Armbruster
f0ae0304c7 check-qjson: Add test for JSON nesting depth limit
This would have prevented the regression mentioned in the previous
commit.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1448486613-17634-4-git-send-email-armbru@redhat.com>
2015-11-26 09:18:38 +01:00
Markus Armbruster
0753113a26 qjson: Don't crash when input exceeds nesting limit
We limit nesting depth and input size to defend against input
triggering excessive heap or stack memory use (commit 29c75dd
json-streamer: limit the maximum recursion depth and maximum token
count).  However, when the nesting limit is exceeded,
parser_context_peek_token()'s assertion fails.

Broken in commit 65c0f1e "json-parser: don't replicate tokens at each
level of recursion".

To reproduce stuff 1025 open braces or brackets into QMP.

Fix by taking the error exit instead of the normal one.

Reported-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1448486613-17634-3-git-send-email-armbru@redhat.com>
2015-11-26 09:18:04 +01:00
Markus Armbruster
4f2d31fbc0 qjson: Apply nesting limit more sanely
The nesting limit from commit 29c75dd "json-streamer: limit the
maximum recursion depth and maximum token count" applies separately to
braces and brackets.  This makes no sense.  Apply it to their sum,
because that's actually a measure of recursion depth.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1448486613-17634-2-git-send-email-armbru@redhat.com>
2015-11-26 09:17:57 +01:00
Markus Armbruster
3a81a10179 monitor: Plug memory leak on QMP error
Leak introduced in commit 8a4f501..710aec9, v2.4.0.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1446117309-15322-1-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Luiz Capitulino <lcapitulino@redhat.com>
2015-11-26 09:15:37 +01:00
Gerd Hoffmann
7fe4a41c26 vnc: fix segfault
Commit "c7628bf vnc: only alloc server surface with clients connected"
missed one rarely used codepath (cirrus with guest drivers using 2d
accel) where we have to check for the server surface being present,
to avoid qemu crashing with a NULL pointer dereference.  Add the check.

Reported-by: Anthony PERARD <anthony.perard@citrix.com>
Tested-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-11-26 08:32:11 +01:00
Yuri Pudgorodskiy
44c6e00c3f qga: added another non-interactive gspawn() helper file.
With previous commit we added gspawn-win64-helper-console.exe,
required for gspawn() mingw implementation.
Unfortunatly when running as a service without interactive
desktop, gspawn() also requires another helper app.

Added gspawn-win64-helper.exe and gspawn-win32-helper.exe
for corresponding architectures.

Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
* remove trailing whitespace
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-11-25 17:56:45 -06:00
Eric Blake
0a982b1bf3 qga: Better mapping of SEEK_* in guest-file-seek
Exposing OS-specific SEEK_ constants in our qapi was a mistake
(if the host has SEEK_CUR as 1, but the guest has it as 2, then
the semantics are unclear what should happen); if we had a time
machine, we would instead expose only a symbolic enum.  It's too
late to change the fact that we have an integer in qapi, but we
can at least document what mapping we want to enforce for all
qga clients (and luckily, it happens to be the mapping that both
Linux and Windows use); then fix the code to match that mapping.
It also helps us filter out unsupported SEEK_DATA and SEEK_HOLE.

In the future, we may wish to move our QGA_SEEK_* constants into
qga/qapi-schema.json, along with updating the schema to take an
alternate type (either the integer, or the string value of the
enum name) - but that's too much risk during hard freeze.

Signed-off-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-11-25 17:56:45 -06:00
Marc-André Lureau
4eaab85cb1 tests: add file-write-read test
This test exhibits a POSIX behaviour regarding switching between write
and read. It's undefined result if the application doesn't ensure a
flush between the two operations (with glibc, the flush can be implicit
when the buffer size is relatively small). The previous commit fixes
this test.

Related to:
https://bugzilla.redhat.com/show_bug.cgi?id=1210246

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-11-25 17:56:45 -06:00
Marc-André Lureau
895b00f62a qga: flush explicitly when needed
According to the specification:
http://pubs.opengroup.org/onlinepubs/9699919799/functions/fopen.html

"the application shall ensure that output is not directly followed by
input without an intervening call to fflush() or to a file positioning
function (fseek(), fsetpos(), or rewind()), and input is not directly
followed by output without an intervening call to a file positioning
function, unless the input operation encounters end-of-file."

Without this change, an fwrite() followed by an fread() may lose the
previously written content, as shown in the following test.

Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=1210246

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
* don't confuse {write,read}() with f{write,read}() in
  commit msg (Laszlo)
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-11-25 17:56:31 -06:00
John Snow
9c73517ca5 ide-test: fix timeouts
Use explicit timeouts instead of trying to approximate it by counting
the cumulative duration of nsleep calls.

In practice, the timeout if inb() dwarfed the nsleep delays, and as a
result the real timeout value became a lot larger than 5 seconds.

So: change the semantics from "Not sooner than 5 seconds" to "no more
than 5 seconds" to ensure we don't hang the tester for very long.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1448393771-15483-2-git-send-email-jsnow@redhat.com
2015-11-25 11:37:34 -05:00
Yuri Pudgorodskiy
f2b608ab80 qga: gspawn() console helper to Windows guest agent msi build
This helper, gspawn-win64-helper-console.exe for 64-bit and
gspawn-win32-helper-console.exe for 32-bit environment,
is needed for gspawn() mingw implementation, used by guest-exec command.

Without these files guest-exec command on Windows will not
work with "file not found" diagnostic message.

Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-11-25 10:21:55 -06:00
Michael Roth
68aa262ad0 makefile: fix qemu-ga make install for --disable-tools
ab59e3e introduced a fix for `make install` on w32 that involved
filtering out qemu-ga from $TOOLS install recipe so that we could
append $(EXESUF) to it before attempting to install the binary
via install-prog function.

install-prog takes a list of binaries to install to a particular
directory. If the list is empty it breaks. We guard against this
by ensuring $TOOLS is not empty prior to calling.

However, ab59e3e introduces extra filtering after this check which
can still result on us attempting to call install-prog with an
empty list of binaries. In particular, this occurs if we
build with the --disable-tools configure option, which results
in qemu-ga being the only member of $TOOLS.

Fix this by doing a simple s/qemu-ga/qemu-ga$(EXESUF)/ pass through
$TOOLS instead of filtering out qemu-ga to handle it seperately.

Reported-by: Steve Ellcey <sellcey@imgtec.com>
Cc: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2015-11-25 10:21:54 -06:00
Peter Maydell
c7933a80bc migration/next for 20151125
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Merge remote-tracking branch 'remotes/juanquintela/tags/migration/20151125' into staging

migration/next for 20151125

# gpg: Signature made Wed 25 Nov 2015 14:28:47 GMT using RSA key ID 5872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg:                 aka "Juan Quintela <quintela@trasno.org>"

* remotes/juanquintela/tags/migration/20151125:
  block-migration: limit the memory usage
  Assume madvise for (no)hugepage works

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-25 16:20:58 +00:00
Peter Maydell
1a4dab849d Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Wed 25 Nov 2015 13:33:14 GMT using RSA key ID C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"

* remotes/kevin/tags/for-upstream:
  qemu-iotests: Add -nographic when starting QEMU in 119 and 120
  block/qapi: Plug memory leak on query-block error path
  raw-posix.c: Make GetBSDPath() handle caching options
  nand: fix flash erase when oob is in memory
  test-aio: Fix event notifier cleanup
  tests/Makefile: Add more dependencies for test-timed-average

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2015-11-25 14:47:06 +00:00
Wen Congyang
f77dcdbc76 block-migration: limit the memory usage
If we set migration speed in a very large value, block-migration will try to read
all data to the memory. Because
    (block_mig_state.submitted + block_mig_state.read_done) * BLOCK_SIZE
will be overflow, and it will be always less than rate limit.

There is no need to read too many data into memory when the rate limit is very large.
So limit the memory usage can fix the overflow problem.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-11-25 15:27:28 +01:00
Dr. David Alan Gilbert
1d7414396f Assume madvise for (no)hugepage works
madvise() returns EINVAL in the case of many failures, but also
returns it in cases where the host kernel doesn't have THP enabled.
Postcopy only really cares that THP is off before it detects faults,
and turns it back on afterwards; so we're going to have
to assume that if the madvise fails then the host just doesn't do
THP and we can carry on with the postcopy.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Tested-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
2015-11-25 15:27:28 +01:00
Kevin Wolf
8c34d891b1 One block patch for qemu 2.5-rc2.
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Merge remote-tracking branch 'mreitz/tags/pull-block-for-kevin-2015-11-25' into queue-block

One block patch for qemu 2.5-rc2.

# gpg: Signature made Wed Nov 25 14:30:45 2015 CET using RSA key ID E838ACAD
# gpg: Good signature from "Max Reitz <mreitz@redhat.com>"

* mreitz/tags/pull-block-for-kevin-2015-11-25:
  qemu-iotests: Add -nographic when starting QEMU in 119 and 120

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2015-11-25 14:33:01 +01:00