osdep: initialize glib threads in all QEMU tools

glib versions prior to 2.31.0 require an explicit g_thread_init() call
to enable multi-threading.

Failure to initialize threading causes glib to take single-threaded code
paths without synchronization.  For example, the g_slice allocator will
crash due to race conditions.

Fix this for all QEMU tool programs (qemu-nbd, qemu-io, qemu-img) by
moving the g_thread_init() call from vl.c:main() into a new
osdep.c:thread_init() constructor function.

thread_init() has __attribute__((constructor)) and is automatically
invoked by the runtime during startup.

We can now drop the "simple" trace backend's g_thread_init() call since
thread_init() already called it.

Note that we must keep coroutine-gthread.c's g_thread_init() call which
is located in a constructor function.  There is no guarantee for
constructor function ordering so thread_init() may only be called later.

Reported-by: Mario de Chenno <mario.dechenno@unina2.it>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qemu-img: mandate argument to 'qemu-img check --repair'

qemu-img check --repair option accepts an argument. The argument to
--repair switch can either be 'all' or 'leak'. Fix the long option to
mandate argument with --repair switch.

The patch fixes following segmentation fault

Core was generated by `qemu-img check -f qcow2 --repair all t.qcow2'.
Program terminated with signal 11, Segmentation fault.
0  in img_check (argc=6, argv=0x7fffab9b8a10) at qemu-img.c:588
588	            if (!strcmp(optarg, "leaks")) {
(gdb) bt
  0  img_check (argc=6, argv=0x7fffab9b8a10) at qemu-img.c:588
  1  __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
  2  _start ()
(gdb)

Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
Reviewed-by: Leandro Dorileo <l@dorileo.org>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Fixed various typos

Signed-off-by: Deepak Kathayat <deepak.mk17@gmail.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
mirror: fix throttling delay calculation

The throttling delay calculation was using an inaccurate sector count to
calculate the time to sleep.  This broke rate-limiting for the block
mirror job.

Move the delay calculation into mirror_iteration() where we know how
many sectors were transferred.  This lets us calculate an accurate delay
time.

Reported-by: Joaquim Barrera <jbarrera@ac.upc.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
mirror: fix early wake from sleep due to aio

The mirror blockjob coroutine rate-limits itself by sleeping.  The
coroutine also performs I/O asynchronously so it's important that the
aio callback doesn't wake the coroutine early as that breaks
rate-limiting.

Reported-by: Joaquim Barrera <jbarrera@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
vfio: Correction in vfio_rom_read when attempting rom loading

commit e638073c569e801ce9de added a flag to track whether
a previous rom read had failed. Accidentally, the code
ended up adding vfio_load_option_rom twice. (Thanks to Alex
for spotting it)

Signed-off-by: Bandan Das <bsd@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Block pull request

# gpg: Signature made Tue 25 Mar 2014 14:34:45 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.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: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  mirror: fix early wake from sleep due to aio
  mirror: fix throttling delay calculation
  Fixed various typos
  qemu-img: mandate argument to 'qemu-img check --repair'
  osdep: initialize glib threads in all QEMU tools

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging

Net patches

# gpg: Signature made Tue 25 Mar 2014 15:02:48 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.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: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/net-pull-request:
  net: netmap_poll must update both read/write poll state

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
vfio: Cosmetic error reporting fixes

* Remove terminating newlines from hw_error() and error_report() calls
* Fix cut-n-paste error in text (s/to/from/)

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Merge remote-tracking branch 'remotes/awilliam/tags/vfio-pci-for-qemu-20140325.0' into staging

A couple trivial fixes for QEMU 2.0:
 - Coding correction that allowed attempts to read the device
   ROM after we'd already marked it failed (Bandan)
 - Cosmetic error reporting fixes to remove unnecessary new lines
   and fix a cut-n-paste wording error (Alex)

# gpg: Signature made Tue 25 Mar 2014 18:18:57 GMT using RSA key ID 3BB08B22
# gpg: Can't check signature: public key not found

* remotes/awilliam/tags/vfio-pci-for-qemu-20140325.0:
  vfio: Cosmetic error reporting fixes
  vfio: Correction in vfio_rom_read when attempting rom loading

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
target-mips: fix MTHC1 and MFHC1 when FPU in FR=0 mode

Previous implementation presumed that FPU registers are 64-bit and are
working in 64-bit mode. This change first checks MIPS_HFLAG_F64 and if not
set, it does load/store from the odd numbered register pair.
Patch by Matthew Fortune.

Signed-off-by: Matthew Fortune <matthew.fortune@imgtec.com>
Signed-off-by: Petar Jovanovic <petar.jovanovic@imgtec.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
gtk: Support GTK without VTE

GTK without VTE is needed for hosts which don't support VTE (for example
all variants of MinGW), but it can also be reasonable for other hosts.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
acpi: make SSDT 1.0 spec compliant when possible

The ACPI specification says:

The ASL compiler can emit two different AML opcodes for a Package
declaration, either PackageOp or VarPackageOp. For small, fixed-length
packages, the PackageOp is used and this opcode is compatible with ACPI
1.0. A VarPackageOp will be emitted if any of the following conditions
are true:
. The NumElements argument is a TermArg that can only be resolved at
runtime.
. At compile time, NumElements resolves to a constant that is larger than
255.
. The PackageList contains more than 255 initializer elements.
Note: The ability to create variable-sized packages was first introduced
in ACPI 2.0. ACPI 1.0 only allowed fixed-size packages with up to 255 elements.

So the spec seems to say a fixed value up to 255 must always
be used with PackageOp and not VarPackageOp, and some guests
(windows up to win2k8) seem to interpret it like this.

Let's do just this, choosing the encoding depending on
the number of elements.

Fixes 9bcc80cd71892df42605e0c097d85c0237ff45d1
(i386/acpi-build: allow more than 255 elements in CPON).

https://bugs.launchpad.net/bugs/1297651

Reported-by: Robert Hu <robert.hu@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Revert "acpi-test: rebuild SSDT"

This reverts commit d07e0e9cddf02dd2abedbbf7ab0e069c8f5dabfd.

Since
commit b4f4d54812624581ce429c805e5179c78222c707
    acpi: make SSDT 1.0 spec compliant when possible
We are back to old encoding.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio-net: Do not filter VLANs without F_CTRL_VLAN

If VIRTIO_NET_F_CTRL_VLAN is not negotiated, do not filter out all
VLAN-tagged packets but send them to the guest.

This fixes VLANs with OpenBSD guests (and probably NetBSD, too, because
the OpenBSD driver started as a port from NetBSD).

Signed-off-by: Stefan Fritsch <sf@sfritsch.de>
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio-net: add vlan receive state to RxFilterInfo

Stefan Fritsch just fixed a virtio-net driver bug [1], virtio-net won't
filter out VLAN-tagged packets if VIRTIO_NET_F_CTRL_VLAN isn't negotiated.

This patch added a new field to @RxFilterInfo to indicate vlan receive
state ('normal', 'none', 'all'). If VIRTIO_NET_F_CTRL_VLAN isn't
negotiated, vlan receive state will be 'all', then all VLAN-tagged packets
will be received by guest.

This patch also fixed a boundary issue in visiting vlan table.

[1] http://lists.nongnu.org/archive/html/qemu-devel/2014-02/msg02604.html

Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
linux-user: Correct DLINFO_ITEMS

Commit a07c67dfccb1 (Implement AT_CLKTCK.) back in March 2008 added a
new auxvec entry but didn't increment DLINFO_ITEMS, so it's been out of
sync ever since.

Bump it up to 14 so that it matches the number of NEW_AUX_ENT's that
need to be counted in create_elf_tables().

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Riku Voipio <riku.voipio@iki.fi>
Cc: Paul Brook <paul@codesourcery.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
scsi: check req pointer before dereferencing it

Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
spapr_vscsi: remove duplicate condition check

Signed-off-by: Prasad Joshi <prasadjoshi.linux@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Merge remote-tracking branch 'remotes/weil/qemu-2.0' into staging

* remotes/weil/qemu-2.0:
  gtk: Support GTK without VTE

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>