The CanBusState state structure is created for each
emulated CAN channel. Individual clients/emulated
CAN interfaces or host interface connection registers
to the bus by CanBusClientState structure.

The CAN core is prepared to support connection to the
real host CAN bus network. The commit with such support
for Linux SocketCAN follows.

Implementation is as simple as possible.  There is no state to be
migrated, and messages prioritization and queuing are not considered
for now.  But it is intended to be extended when need arises.

Development repository and more documentation at

https://gitlab.fel.cvut.cz/canbus/qemu-canbus

The work is based on Jin Yang GSoC 2013 work funded
by Google and mentored in frame of RTEMS project GSoC
slot donated to QEMU.

Rewritten for QEMU-2.0+ versions and architecture cleanup
by Pavel Pisa (Czech Technical University in Prague).
Signed-off-by: NPavel Pisa <pisa@cmp.felk.cvut.cz>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Since HAX_VM_IOCTL_ALLOC_RAM takes a 32-bit size, it cannot handle
RAM blocks of 4GB or larger, which is why HAXM can only run guests
with less than 4GB of RAM. Solve this problem by utilizing the new
HAXM API, HAX_VM_IOCTL_ADD_RAMBLOCK, which takes a 64-bit size, to
register RAM blocks with the HAXM kernel module. The new API is
first added in HAXM 7.0.0, and its availablility and be confirmed
by the presence of the HAX_CAP_64BIT_RAMBLOCK capability flag.

When the guest RAM size reaches 7GB, QEMU will ask HAXM to set up a
memory mapping that covers a 4GB region, which will fail, because
HAX_VM_IOCTL_SET_RAM also takes a 32-bit size. Work around this
limitation by splitting the large mapping into small ones and
calling HAX_VM_IOCTL_SET_RAM multiple times.

Bug: https://bugs.launchpad.net/qemu/+bug/1735576Signed-off-by: NYu Ning <yu.ning@intel.com>
Message-Id: <1515752555-12784-1-git-send-email-yu.ning@linux.intel.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

The make rules for building QEMU are mostly silent by default. They can
be made verbose by setting the variable V=1. The default state does not
however correspond to a V=0 setting - $(V) must be undefined / empty to
get the default quiet build.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Message-Id: <20180123164718.12714-3-berrange@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

This reverts commit 42a77f1c.

The primary intention of this change was to silence messages
like

  make[1]: '/home/berrange/src/virt/qemu/capstone/libcapstone.a' is up to date.

which we get when calling make recursively with explicit
targets.

The problem is that this change affected every make target,
not merely the targets that triggered these "is up to date"
messages. As a result any targets that were not invoking
commands via "$(call quiet-command ...)" suddenly become
silent. This is particularly bad for "make install" which
now appears todo nothing.

Rather than go through every make rule and try to identify
places where we now need to explicitly print a message to
show work taking place, just revert the change.

To address the original problem of silencing "is up to date"
messages, we simply add --quiet to the SUBDIR_MAKEVARS
variable, so it only affects us on recursive make calls.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Message-Id: <20180123164718.12714-2-berrange@redhat.com>
Tested-by: NEric Blake <eblake@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

ppc patch queue 2018-02-12

Here's the accumulatead ppc and pseries related patches for the last
while.  Highlights are:
    * A number of Macintosh / CUDA cleanups from Mark Cave-Ayland
    * An important bug fix (missing "break;") for
      H_GET_CPU_CHARACTERISTICS
    * Yet another fix for SMT mode handling
    * Assorted other cleanups and fixes

# gpg: Signature made Mon 12 Feb 2018 03:39:30 GMT
# gpg:                using RSA key 6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.12-20180212:
  misc: introduce new mos6522 VIA device and enable it for ppc builds
  cuda: factor out timebase-derived counter value and load time
  cuda: set timer 1 frequency property to CUDA_TIMER_FREQ
  cuda: don't call cuda_update() when writing to ACR register
  cuda: minor cosmetic tidy-ups to get_next_irq_time()
  cuda: rename frequency property to tb_frequency
  cuda: introduce CUDAState parameter to get_counter()
  spapr: set vsmt to MAX(8, smp_threads)
  cuda: don't allow writes to port output pins
  cuda: do not use old_mmio accesses
  hw/ppc: rename functions in comments
  spapr: add missing break in h_get_cpu_characteristics()
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

trivial patches for 2018-02-10

# gpg: Signature made Sat 10 Feb 2018 07:54:03 GMT
# gpg:                using RSA key 701B4F6B1A693E59
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931  4B22 701B 4F6B 1A69 3E59

* remotes/mjt/tags/trivial-patches-fetch:
  tests/qapi: use ARRAY_SIZE macro
  tests/qapi: use QEMU_IS_ALIGNED macro
  tests/hbitmap: use ARRAY_SIZE macro
  async: use ARRAY_SIZE macro
  qga: use ARRAY_SIZE macro
  MAINTAINERS: Add qemu-binfmt-conf.sh script
  oslib-posix: check for posix_memalign in configure script
  maint: Mention web site maintenance in README
  build: fix typo in error message
  configure: Allow capstone=git only if git update is not disabled
  scripts/make-release: Don't archive .git files
  qemu-options.hx: Remove confusing spaces in parameter listings
  mailmap: set preferred spelling for Daniel Berrangé
  Drop unneeded system header includes
  machine: Polish -machine xxx,help
  scripts/argparse.py: spelling (independant)
  qapi-schema.json: spelling (independant comparation)
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

nbd patches for 2018-02-09

- Vladimir Sementsov-Ogievskiy: iotests: 205: support luks format
- Eric Blake: block: Simplify bdrv_can_write_zeroes_with_unmap()

# gpg: Signature made Fri 09 Feb 2018 18:34:20 GMT
# gpg:                using RSA key A7A16B4A2527436A
# gpg: Good signature from "Eric Blake <eblake@redhat.com>"
# gpg:                 aka "Eric Blake (Free Software Programmer) <ebb9@byu.net>"
# gpg:                 aka "[jpeg image of size 6874]"
# Primary key fingerprint: 71C2 CC22 B1C4 6029 27D2  F3AA A7A1 6B4A 2527 436A

* remotes/ericb/tags/pull-nbd-2018-02-09:
  block: Simplify bdrv_can_write_zeroes_with_unmap()
  iotests: 205: support luks format
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

The MOS6522 VIA forms the bridge part of several Mac devices, including the
Mac via-cuda and via-pmu devices. Introduce a standard mos6522 device that
can be shared amongst multiple implementations.

This is effectively taking the 6522 parts out of cuda.c and turning them
into a separate device whilst also applying some style tidy-ups and including
a conversion to trace-events.
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

Commit b981289c "PPC: Cuda: Use cuda timer to expose tbfreq to guest" altered
the timer calculations from those based upon the hardware CUDA clock frequency
to those based upon the CPU timebase frequency.

In fact we can isolate the differences to 2 simple changes: one to the counter
read value and another to the counter load time. Move these changes into
separate functions so the implementation can be swapped later.
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

Now that we have successfully decoupled the timebase frequency and the hardware
timer frequency, set the timer 1 frequency property to CUDA_TIMER_FREQ and alter
get_next_irq_time() to use it rather than the hard-coded constant.

In addition to this we must now switch the tb_diff calculation over to use the
timebase frequency now that the hardware clock frequency and the timebase
frequency are different.
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
[dwg: Correct a conflict due to a bug in an earlier patch]
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

The wire protocol for reading data to/from the VIA is triggered by changing
inputs on port B rather than changing the timer configuration via the ACR.
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

This allows us to more easily differentiate between the timebase frequency used
to calibrate the MacOS timers and the actual frequency of the hardware clock as
indicated by CUDA_TIMER_FREQ.
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
[dwg: Revert some extraneous changes which break compile]
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

This will be required shortly and also happens to match nicely with the
corresponding signature for set_counter().
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

We ignore silently the value of smp_threads when we set
the default VSMT value, and if smp_threads is greater than VSMT
kernel is going into trouble later.

Fixes: 8904e5a7
("spapr: Adjust default VSMT value for better migration compatibility")
Signed-off-by: NLaurent Vivier <lvivier@redhat.com>
Reviewed-by: NGreg Kurz <groug@kaod.org>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

Applied using the Coccinelle semantic patch scripts/coccinelle/use_osdep.cocci
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>

Applied using the Coccinelle semantic patch scripts/coccinelle/use_osdep.cocci
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>

Applied using the Coccinelle semantic patch scripts/coccinelle/use_osdep.cocci
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NJohn Snow <jsnow@redhat.com>

Applied using the Coccinelle semantic patch scripts/coccinelle/use_osdep.cocci
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>

Applied using the Coccinelle semantic patch scripts/coccinelle/use_osdep.cocci
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>

Use the direction registers as a mask to ensure that only input pins are
updated upon write.
Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: NLaurent Vivier <lvivier@redhat.com>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

qemu-binfmt-conf.sh is used for the Linux usermode emulation, so
let's add this file to that section in the MAINTAINERS file.
Signed-off-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NLaurent Vivier <laurent@vivier.eu>

Signed-off-by: NMark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

Check for the presence of posix_memalign() in the configure script,
not using "defined(_POSIX_C_SOURCE) && !defined(__sun__)".  This
lets qemu use posix_memalign() on NetBSD versions that have it,
instead of falling back to valloc() which is wasteful when the
required alignment is smaller than a page.
Signed-off-by: NAndreas Gustafsson <gson@gson.org>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NKamil Rytarowski <n54@gmx.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>

Now that we have a website that accepts patches on the list, the
main project should make it easier to find information about that
process.
Signed-off-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NFam Zheng <famz@redhat.com>

Signed-off-by: NLaurent Vivier <lvivier@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Fixes: f62bbee5

Even with --disable-git-update, ./configure tries updating the capstone
submodule instead of marking it "no"; this disables capstone submodule
if git update is disabled.
Signed-off-by: NAlexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NThomas Huth <thuth@redhat.com>

As was last done in 379e21c2, we don't want .git files for
submodules here, which we aren't presently doing for capstone and
keycodemapdb.

Rather than delete the offending files before archiving, ask tar
to --exclude=.git
Signed-off-by: NCole Robinson <crobinso@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NThomas Huth <thuth@redhat.com>

The spaces between the parameters in the chardev and tpmdev sections
are rather confusing than helpful, and prevent that the lists can be
copy-n-pasted easily for real usage. We also don't use such spaces
in other sections in the documentation, e.g. with the -netdev option,
so let's be consistent and remove the spaces in the chardev and tpmdev
sections, too.
Signed-off-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NStefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>

Signed-off-by: NDaniel P. Berrangé <berrange@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

<memory.h> is a non-standard obsolete header that was long ago
replaced by <string.h>.

<malloc.h> is a non-standard header; it is not obsolete (we must
use it for malloc_trim, for example), but generally should not
be used in files that just need malloc() and friends, where
<stdlib.h> is the standard header.

And since osdep.h already guarantees string.h and stdlib.h, we
can drop these unusual system header includes as redundant
rather than replacing them.
Signed-off-by: NEric Blake <eblake@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NThomas Huth <thuth@redhat.com>

The "-machine xxx,help" prints kernel-irqchip possible values as
"OnOffSplit", this adds separators to the printed line.

Also, since only lower case letters are specified in qapi/common.json,
this changes the letter cases too.
Signed-off-by: NAlexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NEric Blake <eblake@redhat.com>

Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>
Reviewed-by: NEric Blake <eblake@redhat.com>

Commit bcb5ce08 ("spapr: Rename machine init functions for clarity")
renamed ppc_spapr_reset to spapr_machine_reset and ppc_spapr_init
to spapr_machine_init. Let's also rename the references in
comments.
Signed-off-by: NDaniel Henrique Barboza <danielhb@linux.vnet.ibm.com>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

Detected by Coverity (CID 1385702). This fixes the recently added hypercall
to let guests properly apply Spectre and Meltdown workarounds.

Fixes: c59704b2 "target/ppc/spapr: Add H-Call H_GET_CPU_CHARACTERISTICS"
Reported-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NGreg Kurz <groug@kaod.org>
Reviewed-by: NSuraj Jitindar Singh <sjitindarsingh@gmail.com>
Signed-off-by: NDavid Gibson <david@gibson.dropbear.id.au>

We don't need the can_write_zeroes_with_unmap field in
BlockDriverInfo, because it is redundant information with
supported_zero_flags & BDRV_REQ_MAY_UNMAP.  Note that
BlockDriverInfo and supported_zero_flags are both per-device
settings, rather than global state about the driver as a
whole, which means one or both of these bits of information
can already be conditional.  Let's audit how they were set:

crypto: always setting can_write_ to false is pointless (the
struct starts life zero-initialized), no use of supported_

nbd: just recently fixed to set can_write_ if supported_
includes MAY_UNMAP (thus this commit effectively reverts
bca80059e and solves the problem mentioned there in a more
global way)

file-posix, iscsi, qcow2: can_write_ is conditional, while
supported_ was unconditional; but passing MAY_UNMAP would
fail with ENOTSUP if the condition wasn't met

qed: can_write_ is unconditional, but pwrite_zeroes lacks
support for MAY_UNMAP and supported_ is not set. Perhaps
support can be added later (since it would be similar to
qcow2), but for now claiming false is no real loss

all other drivers: can_write_ is not set, and supported_ is
either unset or a passthrough

Simplify the code by moving the conditional into
supported_zero_flags for all drivers, then dropping the
now-unused BDI field.  For callers that relied on
bdrv_can_write_zeroes_with_unmap(), we return the same
per-device settings for drivers that had conditions (no
observable change in behavior there); and can now return
true (instead of false) for drivers that support passthrough
(for example, the commit driver) which gives those drivers
the same fix as nbd just got in bca80059e.  For callers that
relied on supported_zero_flags, we now have a few more places
that can avoid a wasted call to pwrite_zeroes() that will
just fail with ENOTSUP.
Suggested-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>
Message-Id: <20180126193439.20219-1-eblake@redhat.com>
Reviewed-by: NStefan Hajnoczi <stefanha@redhat.com>

Support default luks options in VM.add_drive and in new library
function qemu_img_create. Use it in 205 iotests.
Signed-off-by: NVladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20180206182507.21753-1-vsementsov@virtuozzo.com>
Reviewed-by: NDaniel P. Berrange <berrange@redhat.com>
Signed-off-by: NEric Blake <eblake@redhat.com>

One patch to mitigate Travis timeouts

# gpg: Signature made Fri 09 Feb 2018 14:13:46 GMT
# gpg:                using RSA key FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>"
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-travis-speedup-090218-1:
  .travis.yml: add --disable-linux-user for some jobs
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Miscellaneous patches for 2018-02-07

# gpg: Signature made Fri 09 Feb 2018 12:52:51 GMT
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-misc-2018-02-07-v4:
  Move include qemu/option.h from qemu-common.h to actual users
  Drop superfluous includes of qapi/qmp/qjson.h
  Drop superfluous includes of qapi/qmp/dispatch.h
  Include qapi/qmp/qnull.h exactly where needed
  Include qapi/qmp/qnum.h exactly where needed
  Include qapi/qmp/qbool.h exactly where needed
  Include qapi/qmp/qstring.h exactly where needed
  Include qapi/qmp/qdict.h exactly where needed
  Include qapi/qmp/qlist.h exactly where needed
  Include qapi/qmp/qobject.h exactly where needed
  qdict qlist: Make most helper macros functions
  Eliminate qapi/qmp/types.h
  Typedef the subtypes of QObject in qemu/typedefs.h, too
  Include qmp-commands.h exactly where needed
  Drop superfluous includes of qapi/qmp/qerror.h
  Include qapi/error.h exactly where needed
  Drop superfluous includes of qapi-types.h and test-qapi-types.h
  Clean up includes
  Use #include "..." for our own headers, <...> for others
  vnc: use stubs for CONFIG_VNC=n dummy functions
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>