Commit Graph

47844 Commits

Author SHA1 Message Date
Peter Maydell
085c915019 x86 and memory backends queue, 2016-09-05
This includes a few features that were submitted just after hard
 freeze, and a bug fix for memory backend initialization ordering.
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging

x86 and memory backends queue, 2016-09-05

This includes a few features that were submitted just after hard
freeze, and a bug fix for memory backend initialization ordering.

# gpg: Signature made Mon 05 Sep 2016 20:50:14 BST
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-pull-request:
  vl: Delay initialization of memory backends
  vhost-user-test: Use libqos instead of pxe-virtio.rom
  target-i386: Add more Intel AVX-512 instructions support
  exec: Ensure the only one cpu_index allocation method is used

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-06 13:33:17 +01:00
Peter Maydell
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Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

# gpg: Signature made Mon 05 Sep 2016 20:41:04 BST
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  trace: Avoid implicit bool->integer conversions
  trace: Remove 'trace_events_dstate_init'
  trace: add syslog tracing backend

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-06 12:41:24 +01:00
Peter Maydell
1fd66154fd Xen 2016/09/05
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Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20160905' into staging

Xen 2016/09/05

# gpg: Signature made Mon 05 Sep 2016 19:59:47 BST
# gpg:                using RSA key 0x894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 AE90

* remotes/sstabellini/tags/xen-20160905:
  xen: use native disk xenbus protocol if possible

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-06 11:43:18 +01:00
Eduardo Habkost
6546d0dba6 vl: Delay initialization of memory backends
Initialization of memory backends may take a while when
prealloc=yes is used, depending on their size. Initializing
memory backends before chardevs may delay the creation of monitor
sockets, and trigger timeouts on management software that waits
until the monitor socket is created by QEMU. See, for example,
the bug report at:
https://bugzilla.redhat.com/show_bug.cgi?id=1371211

In addition to that, allocating memory before calling
configure_accelerator() breaks the tcg_enabled() checks at
memory_region_init_*().

This patch fixes those problems by adding "memory-backend-*"
classes to the delayed-initialization list.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-09-05 16:03:47 -03:00
Eduardo Habkost
cdafe92961 vhost-user-test: Use libqos instead of pxe-virtio.rom
vhost-user-test relies on iPXE just to initialize the virtio-net
device, and doesn't do any actual packet tx/rx testing.

In addition to that, the test relies on TCG, which is
imcompatible with vhost. The test only worked by accident: a bug
the memory backend initialization made memory regions not have
the DIRTY_MEMORY_CODE bit set in dirty_log_mask.

This changes vhost-user-test to initialize the virtio-net device
using libqos, and not use TCG nor pxe-virtio.rom.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-09-05 16:03:47 -03:00
Luwei Kang
cc728d1493 target-i386: Add more Intel AVX-512 instructions support
Add more AVX512 feature bits, include AVX512DQ, AVX512IFMA,
AVX512BW, AVX512VL, AVX512VBMI. Its spec can be found at:
https://software.intel.com/sites/default/files/managed/b4/3a/319433-024.pdf

Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-09-05 16:01:55 -03:00
Igor Mammedov
630eb0faf4 exec: Ensure the only one cpu_index allocation method is used
Make sure that cpu_index auto allocation isn't used in
combination with manual cpu_index assignment. And
dissallow out of order cpu removal if auto allocation
is in use.

Target that wishes to support out of order unplug should
switch to manual cpu_index assignment. Following patch
could be used as an example:
 (pc: init CPUState->cpu_index with index in possible_cpus[]))

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-09-05 16:01:55 -03:00
Lluís Vilanova
8eb1b9db55 trace: Avoid implicit bool->integer conversions
An explicit if/else is clearer than arithmetic assuming #true is 1,
while the compiler should be able to generate just as optimal code.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 147194273830.26836.5875729707953474838.stgit@fimbulvetr.bsc.es
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-05 13:47:02 -04:00
Lluís Vilanova
a4d50b1d2a trace: Remove 'trace_events_dstate_init'
Removes the event state array used for early initialization. Since only
events with the "vcpu" property need a late initialization fixup,
threats their initialization specially.

Assumes that the user won't touch the state of "vcpu" events between
early and late initialization (e.g., through QMP).

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 147194273191.26836.14423079546263831356.stgit@fimbulvetr.bsc.es
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-05 13:47:01 -04:00
Paul Durrant
0a85241756 trace: add syslog tracing backend
This patch adds a tracing backend which sends output using syslog().
The syslog backend is limited to POSIX compliant systems.

openlog() is called with facility set to LOG_DAEMON, with the LOG_PID
option. Trace events are logged at level LOG_INFO.

Signed-off-by: Paul Durrant <paul.durrant@citrix.com>
Message-id: 1470318254-29989-1-git-send-email-paul.durrant@citrix.com
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-05 13:47:01 -04:00
Peter Maydell
e87d397e5e Open 2.8 development tree
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-05 11:38:54 +01:00
Peter Maydell
1dc33ed90b Update version for v2.7.0 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-02 13:44:11 +01:00
Juergen Gross
4ada797b05 xen: use native disk xenbus protocol if possible
The qdisk implementation is using the native xenbus protocol only in
case of no protocol specified at all. As using the explicit 32- or
64-bit protocol is slower than the native one due to copying requests
not by memcpy but element for element, this is not optimal.

Correct this by using the native protocol in case word sizes of
frontend and backend match.

Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <sstabellini@kernel.org>
2016-08-30 15:01:01 -07:00
Peter Maydell
12d2c4184c Update version for v2.7.0-rc5 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-30 20:39:45 +01:00
Greg Kurz
56f101ecce 9pfs: handle walk of ".." in the root directory
The 9P spec at http://man.cat-v.org/plan_9/5/intro says:

All directories must support walks to the directory .. (dot-dot) meaning
parent directory, although by convention directories contain no explicit
entry for .. or . (dot).  The parent of the root directory of a server's
tree is itself.

This means that a client cannot walk further than the root directory
exported by the server. In other words, if the client wants to walk
"/.." or "/foo/../..", the server should answer like the request was
to walk "/".

This patch just does that:
- we cache the QID of the root directory at attach time
- during the walk we compare the QID of each path component with the root
  QID to detect if we're in a "/.." situation
- if so, we skip the current component and go to the next one

Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-30 19:23:00 +01:00
Greg Kurz
805b5d98c6 9pfs: forbid . and .. in file names
According to the 9P spec http://man.cat-v.org/plan_9/5/open about the
create request:

The names . and .. are special; it is illegal to create files with these
names.

This patch causes the create and lcreate requests to fail with EINVAL if
the file name is either "." or "..".

Even if it isn't explicitly written in the spec, this patch extends the
checking to all requests that may cause a directory entry to be created:

    - mknod
    - rename
    - renameat
    - mkdir
    - link
    - symlink

The unlinkat request also gets patched for consistency (even if
rmdir("foo/..") is expected to fail according to POSIX.1-2001).

The various error values come from the linux manual pages.

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-30 19:21:56 +01:00
Greg Kurz
fff39a7ad0 9pfs: forbid illegal path names
Empty path components don't make sense for most commands and may cause
undefined behavior, depending on the backend.

Also, the walk request described in the 9P spec [1] clearly shows that
the client is supposed to send individual path components: the official
linux client never sends portions of path containing the / character for
example.

Moreover, the 9P spec [2] also states that a system can decide to restrict
the set of supported characters used in path components, with an explicit
mention "to remove slashes from name components".

This patch introduces a new name_is_illegal() helper that checks the
names sent by the client are not empty and don't contain unwanted chars.
Since 9pfs is only supported on linux hosts, only the / character is
checked at the moment. When support for other hosts (AKA. win32) is added,
other chars may need to be blacklisted as well.

If a client sends an illegal path component, the request will fail and
ENOENT is returned to the client.

[1] http://man.cat-v.org/plan_9/5/walk
[2] http://man.cat-v.org/plan_9/5/intro

Suggested-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-30 19:21:39 +01:00
Peter Maydell
2b294f6b65 * pc-bios/optionrom/Makefile fix for -O0
* revert socket_connect change
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* pc-bios/optionrom/Makefile fix for -O0
* revert socket_connect change

# gpg: Signature made Tue 30 Aug 2016 15:36:59 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream:
  optionrom: cope with multiple -O options
  Revert "Change net/socket.c to use socket_*() functions"

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-30 17:11:14 +01:00
Paolo Bonzini
336d5881a9 optionrom: cope with multiple -O options
Reproducer:

    CFLAGS="-g3 -O0" ./configure --target-list=aarch64-softmmu,arm-softmmu --enable-vhost-net --enable-virtfs

Here CFLAGS ends up with "-O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2 ... -g3 -O0"
and pc-bios/optionrom/Makefile forgets to add the -O2 it needs.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-08-30 16:28:46 +02:00
Paolo Bonzini
616018352c Revert "Change net/socket.c to use socket_*() functions"
Since commit 7e8449594c, the socket connect code is blocking, because
calling socket_connect() without callback is blocking.  This reverts the
commit.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-08-30 16:28:46 +02:00
Christian Borntraeger
135a972b45 translate: early exit in tb_flush if there is no tcg
tb_flush does all kind of things, which are very tcg specific. As it
is called from some places even for KVM (e.g. gdb server) it is better
to detect these cases and do an early exit.
This also fixes a crash in the gdb server that was triggered by
commit 909eaac9bb ("tb hash: track translated blocks with qht").

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Reported-by: Richard Henderson <rth@twiddle.net>
Reported-by: Brent Baccala <cosine@freesoft.org>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-id: 1472148686-39841-1-git-send-email-borntraeger@de.ibm.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-30 13:30:55 +01:00
Daniel P. Berrange
b69a553b4a ui: fix refresh of VNC server surface
In previous commit

  commit c7628bff41
  Author: Gerd Hoffmann <kraxel@redhat.com>
  Date:   Fri Oct 30 12:10:09 2015 +0100

    vnc: only alloc server surface with clients connected

the VNC server was changed so that the 'vd->server' pixman
image was only allocated when a client is connected.

Since then if a client disconnects and then reconnects to
the VNC server all they will see is a black screen until
they do something that triggers a refresh. On a graphical
desktop this is not often noticed since there's many things
going on which cause a refresh. On a plain text console it
is really obvious since nothing refreshes frequently.

The problem is that the VNC server didn't update the guest
dirty bitmap, so still believes its server image is in sync
with the guest contents.

To fix this we must explicitly mark the entire guest desktop
as dirty after re-creating the server surface. Move this
logic into vnc_update_server_surface() so it is guaranteed
to be call in all code paths that re-create the surface
instead of only in vnc_dpy_switch()

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Peter Lieven <pl@kamp.de>
Tested-by: Peter Lieven <pl@kamp.de>
Message-id: 1471365032-18096-1-git-send-email-berrange@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-30 11:20:24 +01:00
Peter Maydell
e00da552a0 virtio: fixes
some bugfixes for virtio
 balloon is still broken wrt migration
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

virtio: fixes

some bugfixes for virtio
balloon is still broken wrt migration

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

# gpg: Signature made Tue 23 Aug 2016 17:33:11 BST
# gpg:                using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  virtio: decrement vq->inuse in virtqueue_discard()
  virtio: recalculate vq->inuse after migration

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-24 17:21:03 +01:00
Ed Maste
8c1c230a6e Fix bsd-user build after d915b7bb
Must include "qemu-version.h" for the QEMU_PKGVERSION definition.

Signed-off-by: Ed Maste <emaste@freebsd.org>
Message-id: 1471877833-52343-1-git-send-email-emaste@freebsd.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-24 16:42:40 +01:00
Stefan Hajnoczi
58a83c6149 virtio: decrement vq->inuse in virtqueue_discard()
virtqueue_discard() moves vq->last_avail_idx back so the element can be
popped again.  It's necessary to decrement vq->inuse to avoid "leaking"
the element count.

Cc: qemu-stable@nongnu.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-23 19:20:24 +03:00
Stefan Hajnoczi
bccdef6b1a virtio: recalculate vq->inuse after migration
The vq->inuse field is not migrated.  Many devices don't hold
VirtQueueElements across migration so it doesn't matter that vq->inuse
starts at 0 on the destination QEMU.

At least virtio-serial, virtio-blk, and virtio-balloon migrate while
holding VirtQueueElements.  For these devices we need to recalculate
vq->inuse upon load so the value is correct.

Cc: qemu-stable@nongnu.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-08-23 19:20:10 +03:00
Peter Maydell
d75aa4372f Update version for v2.7.0-rc4 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-22 15:29:41 +01:00
Peter Maydell
62680fad7f -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
 iQEcBAABAgAGBQJXurKIAAoJEO8Ells5jWIRUaAIAKy9h8aIpBV9JH7aeXmjbA8i
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 +CYbZmpUsXAYgI0YNlukmfG/U3n2jCN043aTNmwfRzATi2qYXO95bohftjaFXck=
 =waIl
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Mon 22 Aug 2016 09:06:32 BST
# gpg:                using RSA key 0xEF04965B398D6211
# 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:
  e1000e: remove internal interrupt flag
  slirp: fix segv when init failed

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-22 10:02:28 +01:00
Cao jin
e0af5a0e8b e1000e: remove internal interrupt flag
Commit 66bf7d58 removed internal msi state flag E1000E_USE_MSI, E1000E_USE_MSIX
is not necessary too, remove it now. And interrupt flag field intr_state also
can be removed now.

CC: Dmitry Fleytman <dmitry@daynix.com>
CC: Jason Wang <jasowang@redhat.com>
CC: Markus Armbruster <armbru@redhat.com>
CC: Marcel Apfelbaum <marcel@redhat.com>
CC: Michael S. Tsirkin <mst@redhat.com>
CC: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Dmitry Fleytman <dmitry@daynix.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-08-22 16:06:08 +08:00
Marc-André Lureau
67f3280c06 slirp: fix segv when init failed
Since commit f6c2e66ae8, slirp uses an exit notifier to call
slirp_smb_cleanup. However, if init() failed, the notifier isn't added,
and removing it will fail:

==18447== Invalid write of size 8
==18447==    at 0x7EF2B5: notifier_remove (notify.c:32)
==18447==    by 0x48E80C: qemu_remove_exit_notifier (vl.c:2661)
==18447==    by 0x6A2187: net_slirp_cleanup (slirp.c:134)
==18447==    by 0x69419D: qemu_cleanup_net_client (net.c:338)
==18447==    by 0x69445B: qemu_del_net_client (net.c:401)
==18447==    by 0x6A2B81: net_slirp_init (slirp.c:366)
==18447==    by 0x6A4241: net_init_slirp (slirp.c:865)
==18447==    by 0x695C6D: net_client_init1 (net.c:1051)
==18447==    by 0x695F6E: net_client_init (net.c:1108)
==18447==    by 0x696DBA: net_init_netdev (net.c:1498)
==18447==    by 0x7F1F99: qemu_opts_foreach (qemu-option.c:1116)
==18447==    by 0x696E60: net_init_clients (net.c:1516)
==18447==  Address 0x0 is not stack'd, malloc'd or (recently) free'd

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-08-22 15:20:32 +08:00
Sascha Silbe
5f9f818ea8 test-logging: don't hard-code paths in /tmp
Since f6880b7f [qemu-log: support simple pid substitution for logs],
test-logging creates files with hard-coded names in /tmp. In the best
case, this prevents multiple developers from running "make check" on
the same machine. In the worst case, it allows for symlink attacks,
enabling an attacker to overwrite files that are writable to the
developer running "make check".

Instead of hard-coding the paths, create a temporary directory using
g_dir_make_tmp() and clean it up afterwards.

Fixes: f6880b7f ("qemu-log: support simple pid substitution for logs")
Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Message-id: 1471545963-11720-3-git-send-email-silbe@linux.vnet.ibm.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-19 12:44:11 +01:00
Sascha Silbe
5045570009 glib: add compatibility implementation for g_dir_make_tmp()
We're going to make use of g_dir_make_tmp() in test-logging. Provide a
compatibility implementation of it for glib < 2.30.

May behave differently in some edge cases (e.g. pattern only at the
end of the template, the file name is not part of the error message),
but good enough in practice.

Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Message-id: 1471545963-11720-2-git-send-email-silbe@linux.vnet.ibm.com
[PMM: removed variable "template" which caused compilation failures
 when C++ files include glib-compat.h]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-19 12:42:40 +01:00
Michal Privoznik
60c6b790fc syscall.c: Redefine IFLA_* enums
In 9c37146782 I've tried to fix a broken build with older
linux-headers. However, I didn't do it properly. The solution
implemented here is to grab the enums that caused the problem
initially, and rename their values so that they are "QEMU_"
prefixed. In order to guarantee matching values with actual
enums from linux-headers, the enums are seeded with starting
values from the original enums.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 75c14d6e8a97c4ff3931d69c13eab7376968d8b4.1471593869.git.mprivozn@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-19 09:47:51 +01:00
Michal Privoznik
aee5f8f98e Revert "syscall.c: Fix build with older linux-headers"
The fix I've made there was wrong. I mean, basically what I did
there was equivalent to:

  #if 0
  some code;
  #endif

This reverts commit 9c37146782.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-id: 40d61349e445c1ad5fef795da704bf7ed6e19c86.1471593869.git.mprivozn@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-19 09:47:51 +01:00
Peter Maydell
02b1ad881c -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
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 =T6Rt
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

# gpg: Signature made Thu 18 Aug 2016 14:39:31 BST
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  block: fix possible reorder of flush operations
  block: fix deadlock in bdrv_co_flush

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-18 14:42:51 +01:00
Denis V. Lunev
156af3ac98 block: fix possible reorder of flush operations
This patch reduce CPU usage of flush operations a bit. When we have one
flush completed we should kick only next operation. We should not start
all pending operations in the hope that they will go back to wait on
wait_queue.

Also there is a technical possibility that requests will get reordered
with the previous approach. After wakeup all requests are removed from
the wait queue. They become active and they are processed one-by-one
adding to the wait queue in the same order. Though new flush can arrive
while all requests are not put into the queue.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Tested-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Message-id: 1471457214-3994-3-git-send-email-den@openvz.org
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-08-18 14:36:49 +01:00
Evgeny Yakovlev
ce83ee57f6 block: fix deadlock in bdrv_co_flush
The following commit
    commit 3ff2f67a7c
    Author: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
    Date:   Mon Jul 18 22:39:52 2016 +0300
    block: ignore flush requests when storage is clean
has introduced a regression.

There is a problem that it is still possible for 2 requests to execute
in non sequential fashion and sometimes this results in a deadlock
when bdrv_drain_one/all are called for BDS with such stalled requests.

1. Current flushed_gen and flush_started_gen is 1.
2. Request 1 enters bdrv_co_flush to with write_gen 1 (i.e. the same
   as flushed_gen). It gets past flushed_gen != flush_started_gen and
   sets flush_started_gen to 1 (again, the same it was before).
3. Request 1 yields somewhere before exiting bdrv_co_flush
4. Request 2 enters bdrv_co_flush with write_gen 2. It gets past
   flushed_gen != flush_started_gen and sets flush_started_gen to 2.
5. Request 2 runs to completion and sets flushed_gen to 2
6. Request 1 is resumed, runs to completion and sets flushed_gen to 1.
   However flush_started_gen is now 2.

From here on out flushed_gen is always != to flush_started_gen and all
further requests will wait on flush_queue. This change replaces
flush_started_gen with an explicitly tracked active flush request.

Signed-off-by: Evgeny Yakovlev <eyakovlev@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Message-id: 1471457214-3994-2-git-send-email-den@openvz.org
CC: Stefan Hajnoczi <stefanha@redhat.com>
CC: Fam Zheng <famz@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
CC: Max Reitz <mreitz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-08-18 14:36:49 +01:00
Peter Maydell
5844365fe8 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
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 =21z1
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Thu 18 Aug 2016 06:36:16 BST
# gpg:                using RSA key 0xEF04965B398D6211
# 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:
  net/net: properly handle multiple packets in net_fill_rstate()
  net: vmxnet: use g_new for pkt initialisation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-18 10:56:41 +01:00
Peter Maydell
4b887ae658 Fix 'make docker-test-mingw@fedora'
Peter,
 
 This is the single patch that stalls patchew's mingw testing. Since it
 is small and trivial, let's have it in 2.7.
 
 Fam
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 ce08c9+iErJM6C08uOBPcJM3AcERmnzDButBm6YPTglEHUA/lmCD9bAijosRy+c=
 =XBcZ
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/famz/tags/docker-pull-request' into staging

Fix 'make docker-test-mingw@fedora'

Peter,

This is the single patch that stalls patchew's mingw testing. Since it
is small and trivial, let's have it in 2.7.

Fam

# gpg: Signature made Wed 17 Aug 2016 13:13:53 BST
# gpg:                using RSA key 0xCA35624C6A9171C6
# gpg: Good signature from "Fam Zheng <famz@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: 5003 7CB7 9706 0F76 F021  AD56 CA35 624C 6A91 71C6

* remotes/famz/tags/docker-pull-request:
  curl: Cast fd to int for DPRINTF

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-18 10:27:57 +01:00
Zhang Chen
e9e0a5854b net/net: properly handle multiple packets in net_fill_rstate()
When network is busy, we will receive multiple packets at one time. In
that situation, we should keep trying to do the receiving instead of
finalizing only the first packet.

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-08-18 12:20:57 +08:00
Li Qiang
47882fa497 net: vmxnet: use g_new for pkt initialisation
When network transport abstraction layer initialises pkt, the maximum
fragmentation count is not checked. This could lead to an integer
overflow causing a NULL pointer dereference. Replace g_malloc() with
g_new() to catch the multiplication overflow.

Reported-by: Li Qiang <liqiang6-s@360.cn>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Acked-by: Dmitry Fleytman <dmitry@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-08-18 12:05:18 +08:00
Fam Zheng
92b6a16087 curl: Cast fd to int for DPRINTF
Currently "make docker-test-mingw@fedora" has a warning like:

    /tmp/qemu-test/src/block/curl.c: In function 'curl_sock_cb':
    /tmp/qemu-test/src/block/curl.c:172:6: warning: format '%d' expects
    argument of type 'int', but argument 4 has type 'curl_socket_t {aka long
    long unsigned int}'
         DPRINTF("CURL (AIO): Sock action %d on fd %d\n", action, fd);
          ^
    cc1: all warnings being treated as errors

Cast to int to suppress it.

Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <1470027888-24381-1-git-send-email-famz@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
2016-08-17 19:57:54 +08:00
Peter Maydell
5f0e775348 Update version for v2.7.0-rc3 release
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-16 17:34:30 +01:00
Peter Maydell
9fea273c85 linux-user: Fix llseek with high bit of offset_low set
The llseek syscall takes two 32-bit arguments, offset_high
and offset_low, which must be combined to form a single
64-bit offset. Unfortunately we were combining them with
   (uint64_t)arg2 << 32) | arg3
and arg3 is a signed type; this meant that when promoting
arg3 to a 64-bit type it would be sign-extended. The effect
was that if the offset happened to have bit 31 set then
this bit would get sign-extended into all of bits 63..32.
Explicitly cast arg3 to abi_ulong to avoid the erroneous
sign extension.

Reported-by: Chanho Park <parkch98@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Tested-by: Chanho Park <parkch98@gmail.com>
Message-id: 1470938379-1133-1-git-send-email-peter.maydell@linaro.org
2016-08-16 16:42:03 +01:00
Michal Privoznik
9c37146782 syscall.c: Fix build with older linux-headers
In c5dff280 we tried to make us understand netlink messages more.
So we've added a code that does some translation. However, the
code assumed linux-headers to be at least version 4.4 of it
because most of the symbols there (if not all of them) were added
in just that release. This, however, breaks build on systems with
older versions of the package.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Message-id: 23806aac6db3baf7e2cdab4c62d6e3468ce6b4dc.1471340849.git.mprivozn@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-16 16:14:48 +01:00
Marc-André Lureau
1451a7a673 qmp-commands.hx: remove outdated note
input-send-event is now stable since
6575ccddf4.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 20160811112041.18616-1-marcandre.lureau@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-16 15:19:52 +01:00
Peter Maydell
725092ede5 target-i386: kernel_irqchip=off fix for KVM
-----BEGIN PGP SIGNATURE-----
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-pull-request' into staging

target-i386: kernel_irqchip=off fix for KVM

# gpg: Signature made Tue 16 Aug 2016 12:55:42 BST
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-pull-request:
  target-i386: kvm: Report kvm_pv_unhalt as unsupported w/o kernel_irqchip

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-16 13:03:16 +01:00
Eduardo Habkost
648774779a target-i386: kvm: Report kvm_pv_unhalt as unsupported w/o kernel_irqchip
The kvm_pv_unhalt feature doesn't work if kernel_irqchip is
disabled, so we need to report it as unsupported.

Tested-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-08-16 08:49:53 -03:00
Thomas Huth
1f8b56e7ce slirp: Rename "struct arphdr" to "struct slirp_arphdr"
struct arphdr is already used by the system headers on OpenBSD
and thus QEMU does not compile here anymore. Fix it by renaming
our struct to slirp_arphdr instead.

Reported-by: Brad Smith
Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1471249494-17392-1-git-send-email-thuth@redhat.com
Buglink: https://bugs.launchpad.net/qemu/+bug/1613133
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-16 12:17:36 +01:00
Marc-André Lureau
1dc8a6695c char: fix waiting for TLS and telnet connection
Since commit d7a04fd7d5, tcp_chr_wait_connected() was introduced,
so vhost-user could wait until a backend started successfully. In
vhost-user case, the chr socket must be plain unix, and the chr+vhost
setup happens synchronously during qemu startup.

However, with TLS and telnet socket, initial socket setup happens
asynchronously, and s->connected is not set after the socket is
accepted. In order for tcp_chr_wait_connected() to not keep accepting
new connections and proceed with the last accepted socket, it can
check for s->ioc instead.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20160816083332.15088-1-marcandre.lureau@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-08-16 11:50:55 +01:00