Commit Graph

1535 Commits

Author SHA1 Message Date
Paolo Bonzini
9f2931bc65 machine: remove deprecated -machine enforce-config-section option
Deprecated since 3.1 and complicates the initialization sequence,
remove it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-26 07:08:39 -04:00
Alexander Bulekov
2f2e036ca6 fuzz: Add instructions for using generic-fuzz
Reviewed-by: Darren Kenny <darren.kenny@oracle.com>
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20201023150746.107063-13-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-26 09:53:53 +01:00
Thomas Huth
7239c050e8 Remove deprecated -no-kvm option
The option has never been mentioned in our documentation, it's been
deprecated since years, it's marked with QEMU_ARCH_I386 (which does
not make sense anymore since KVM is available on other architectures,
too), it does not do anything by default in upstream QEMU (since TCG
is the default here anyway), and we're spending too much precious time
each year discussing whether it makes sense to keep this option as a
nice suger or not... let's finally put an end on this and remove it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201020160504.62460-1-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-22 11:53:55 -04:00
Emanuele Giuseppe Esposito
a0c0c9f8b4 loads-stores.rst: add footnote that clarifies GETPC usage
Current documentation is not too clear on the GETPC usage.
In particular, when used outside the top level helper function
it causes unexpected behavior.

Signed-off-by: Emanuele Giuseppe Esposito <e.emanuelegiuseppe@gmail.com>
Message-id: 20201015095147.1691-1-e.emanuelegiuseppe@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-20 16:12:00 +01:00
Peter Maydell
22d30b340a MIPS patches queue
. Fix some comment spelling errors
 . Demacro some TCG helpers
 . Add loongson-ext lswc2/lsdc2 group of instructions
 . Log unimplemented cache opcode
 . Increase number of TLB entries on the 34Kf core
 . Allow the CPU to use dynamic frequencies
 . Calculate the CP0 timer period using the CPU frequency
 . Set CPU frequency for each machine
 . Fix Malta FPGA I/O region size
 . Allow running qtests when ROM is missing
 . Add record/replay acceptance tests
 . Update MIPS CPU documentation
 . MAINTAINERS updates
 
 CI jobs results:
   https://gitlab.com/philmd/qemu/-/pipelines/203931842
   https://travis-ci.org/github/philmd/qemu/builds/736491461
   https://cirrus-ci.com/build/6272264062631936
   https://app.shippable.com/github/philmd/qemu/runs/886/summary/console
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Merge remote-tracking branch 'remotes/philmd-gitlab/tags/mips-next-20201017' into staging

MIPS patches queue

. Fix some comment spelling errors
. Demacro some TCG helpers
. Add loongson-ext lswc2/lsdc2 group of instructions
. Log unimplemented cache opcode
. Increase number of TLB entries on the 34Kf core
. Allow the CPU to use dynamic frequencies
. Calculate the CP0 timer period using the CPU frequency
. Set CPU frequency for each machine
. Fix Malta FPGA I/O region size
. Allow running qtests when ROM is missing
. Add record/replay acceptance tests
. Update MIPS CPU documentation
. MAINTAINERS updates

CI jobs results:
  https://gitlab.com/philmd/qemu/-/pipelines/203931842
  https://travis-ci.org/github/philmd/qemu/builds/736491461
  https://cirrus-ci.com/build/6272264062631936
  https://app.shippable.com/github/philmd/qemu/runs/886/summary/console

# gpg: Signature made Sat 17 Oct 2020 14:59:53 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/mips-next-20201017: (44 commits)
  target/mips: Increase number of TLB entries on the 34Kf core (16 -> 64)
  MAINTAINERS: Remove duplicated Malta test entries
  MAINTAINERS: Downgrade MIPS Boston to 'Odd Fixes', fix Paul Burton mail
  MAINTAINERS: Put myself forward for MIPS target
  MAINTAINERS: Remove myself
  docs/system: Update MIPS CPU documentation
  tests/acceptance: Add MIPS record/replay tests
  hw/mips: Remove exit(1) in case of missing ROM
  hw/mips: Rename TYPE_MIPS_BOSTON to TYPE_BOSTON
  hw/mips: Simplify code using ROUND_UP(INITRD_PAGE_SIZE)
  hw/mips: Simplify loading 64-bit ELF kernels
  hw/mips/malta: Use clearer qdev style
  hw/mips/malta: Move gt64120 related code together
  hw/mips/malta: Fix FPGA I/O region size
  target/mips/cpu: Display warning when CPU is used without input clock
  hw/mips/cps: Do not allow use without input clock
  hw/mips/malta: Set CPU frequency to 320 MHz
  hw/mips/boston: Set CPU frequency to 1 GHz
  hw/mips/cps: Expose input clock and connect it to CPU cores
  hw/mips/jazz: Correct CPU frequencies
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-19 10:52:57 +01:00
Peter Maydell
782d7b30dd * Drop ninjatool and just require ninja (Paolo)
* Fix docs build under msys2 (Yonggang)
 * HAX snafu fix (Claudio)
 * Disable signal handlers during fuzzing (Alex)
 * Miscellaneous fixes (Bruce, Greg)
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Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

* Drop ninjatool and just require ninja (Paolo)
* Fix docs build under msys2 (Yonggang)
* HAX snafu fix (Claudio)
* Disable signal handlers during fuzzing (Alex)
* Miscellaneous fixes (Bruce, Greg)

# gpg: Signature made Sat 17 Oct 2020 15:45:56 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# 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-gitlab/tags/for-upstream: (22 commits)
  ci: include configure and meson logs in all jobs if configure fails
  hax: unbreak accelerator cpu code after cpus.c split
  fuzz: Disable QEMU's SIG{INT,HUP,TERM} handlers
  cirrus: Enable doc build on msys2/mingw
  meson: Move the detection logic for sphinx to meson
  meson: move SPHINX_ARGS references within "if build_docs"
  docs: Fix Sphinx configuration for msys2/mingw
  meson: Only install icons and qemu.desktop if have_system
  configure: fix handling of --docdir parameter
  meson: cleanup curses/iconv test
  meson.build: don't condition iconv detection on library detection
  build: add --enable/--disable-libudev
  build: replace ninjatool with ninja
  build: cleanups to Makefile
  add ninja to dockerfiles, CI configurations and test VMs
  dockerfiles: enable Centos 8 PowerTools
  configure: move QEMU_INCLUDES to meson
  tests: add missing generated sources to testqapi
  make: run shell with pipefail
  tests/Makefile.include: unbreak non-tcg builds
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-17 20:52:55 +01:00
Yonggang Luo
e366766046 meson: Move the detection logic for sphinx to meson
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Message-Id: <20201015220626.418-4-luoyonggang@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-17 10:45:53 -04:00
Yonggang Luo
a94a689cc5 docs: Fix Sphinx configuration for msys2/mingw
Python doesn't support running ../scripts/kernel-doc directly.

Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Message-Id: <20201015220626.418-2-luoyonggang@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-17 10:45:52 -04:00
Paolo Bonzini
09e93326e4 build: replace ninjatool with ninja
Now that the build is done entirely by Meson, there is no need
to keep the Makefile conversion.  Instead, we can ask Ninja about
the targets it exposes and forward them.

The main advantages are, from smallest to largest:

- reducing the possible namespace pollution within the Makefile

- removal of a relatively large Python program

- faster build because parsing Makefile.ninja is slower than
parsing build.ninja; and faster build after Meson runs because
we do not have to generate Makefile.ninja.

- tracking of command lines, which provides more accurate rebuilds

In addition the change removes the requirement for GNU make 3.82, which
was annoying on Mac, and avoids bugs on Windows due to ninjatool not
knowing how to convert Windows escapes to POSIX escapes.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-17 10:45:51 -04:00
Huacai Chen
b5330cf19a docs/system: Update MIPS CPU documentation
Add Loongson-3A CPU models description.

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Message-Id: <1602059975-10115-10-git-send-email-chenhc@lemote.com>
[PMD: Split patch in 2: CPU / machine]
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-10-17 13:59:40 +02:00
Peter Maydell
e12ce85b2c x86 queue, 2020-10-15
Cleanups:
 * Drop x86_cpu_get_supported_feature_word() forward declaration
   (Vitaly Kuznetsov)
 * Delete kvm_allows_irq0_override() (Eduardo Habkost)
 * Correct documentation of kvm_irqchip_*() (Eduardo Habkost)
 * Fix FEATURE_HYPERV_EDX value in hyperv_passthrough case (Zhenyu Wang)
 
 Deprecation:
 * CPU model deprecation API (Robert Hoo)
 * Mark Icelake-Client CPU models deprecated (Robert Hoo)
 
 Bug fixes:
 * Remove core_id assert check in CPUID 0x8000001E (Babu Moger)
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Merge remote-tracking branch 'remotes/ehabkost/tags/x86-next-pull-request' into staging

x86 queue, 2020-10-15

Cleanups:
* Drop x86_cpu_get_supported_feature_word() forward declaration
  (Vitaly Kuznetsov)
* Delete kvm_allows_irq0_override() (Eduardo Habkost)
* Correct documentation of kvm_irqchip_*() (Eduardo Habkost)
* Fix FEATURE_HYPERV_EDX value in hyperv_passthrough case (Zhenyu Wang)

Deprecation:
* CPU model deprecation API (Robert Hoo)
* Mark Icelake-Client CPU models deprecated (Robert Hoo)

Bug fixes:
* Remove core_id assert check in CPUID 0x8000001E (Babu Moger)

# gpg: Signature made Thu 15 Oct 2020 17:43:58 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/x86-next-pull-request:
  i386: Mark Icelake-Client CPU models deprecated
  cpu: Introduce CPU model deprecation API
  kvm: Correct documentation of kvm_irqchip_*()
  i386/kvm: Delete kvm_allows_irq0_override()
  i386/kvm: Remove IRQ routing support checks
  i386/kvm: Require KVM_CAP_IRQ_ROUTING
  target/i386: Remove core_id assert check in CPUID 0x8000001E
  i386/kvm: fix FEATURE_HYPERV_EDX value in hyperv_passthrough case
  i386: drop x86_cpu_get_supported_feature_word() forward declaration

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-16 22:46:28 +01:00
Daniel P. Berrangé
e1c4269763 block: deprecate the sheepdog block driver
This thread from a little over a year ago:

  http://lists.wpkg.org/pipermail/sheepdog/2019-March/thread.html

states that sheepdog is no longer actively developed. The only mentioned
users are some companies who are said to have it for legacy reasons with
plans to replace it by Ceph. There is talk about cutting out existing
features to turn it into a simple demo of how to write a distributed
block service. There is no evidence of anyone working on that idea:

  https://github.com/sheepdog/sheepdog/commits/master

No real commits to git since Jan 2018, and before then just some minor
technical debt cleanup.

There is essentially no activity on the mailing list aside from
patches to QEMU that get CC'd due to our MAINTAINERS entry.

Fedora packages for sheepdog failed to build from upstream source
because of the more strict linker that no longer merges duplicate
global symbols. Fedora patches it to add the missing "extern"
annotations and presumably other distros do to, but upstream source
remains broken.

There is only basic compile testing, no functional testing of the
driver.

Since there are no build pre-requisites the sheepdog driver is currently
enabled unconditionally. This would result in configure issuing a
deprecation warning by default for all users. Thus the configure default
is changed to disable it, requiring users to pass --enable-sheepdog to
build the driver.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20201002113243.2347710-3-berrange@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-10-15 16:06:28 +02:00
Robert Hoo
3e6a015cbd i386: Mark Icelake-Client CPU models deprecated
Icelake-Client CPU models will be removed in the future.

Signed-off-by: Robert Hoo <robert.hu@linux.intel.com>
Message-Id: <1600758855-80046-2-git-send-email-robert.hu@linux.intel.com>
[ehabkost: reword deprecation note, fix version in doc]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-10-14 15:28:55 -04:00
Peter Maydell
b37da83763 * qtest improvements (test for crash found with the fuzzer, increase
downtime in migration test, less verbose output when running w/o KVM)
 * Improve handling of acceptance tests in the Gitlab-CI
 * Run checkpatch.pl in the Gitlab-CI
 * Improve the gitlab-pipeline-status script
 * Misc patches (mark 'moxie' as deprecated, remove stale .gitignore files, ...)
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Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2020-10-13' into staging

* qtest improvements (test for crash found with the fuzzer, increase
  downtime in migration test, less verbose output when running w/o KVM)
* Improve handling of acceptance tests in the Gitlab-CI
* Run checkpatch.pl in the Gitlab-CI
* Improve the gitlab-pipeline-status script
* Misc patches (mark 'moxie' as deprecated, remove stale .gitignore files, ...)

# gpg: Signature made Tue 13 Oct 2020 11:49:06 BST
# gpg:                using RSA key 27B88847EEE0250118F3EAB92ED9D774FE702DB5
# gpg:                issuer "thuth@redhat.com"
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>" [full]
# gpg:                 aka "Thomas Huth <thuth@redhat.com>" [full]
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>" [full]
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>" [unknown]
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2020-10-13: (23 commits)
  scripts/ci/gitlab-pipeline-status: wait for pipeline creation
  scripts/ci/gitlab-pipeline-status: use more descriptive exceptions
  scripts/ci/gitlab-pipeline-status: handle keyboard interrupts
  scripts/ci/gitlab-pipeline-status: refactor parser creation
  scripts/ci/gitlab-pipeline-status: give early feedback on running pipelines
  scripts/ci/gitlab-pipeline-status: improve message regarding timeout
  scripts/ci/gitlab-pipeline-status: make branch name configurable
  gitlab: assign python helper files to GitLab maintainers section
  gitlab: add a CI job to validate the DCO sign off
  gitlab: add a CI job for running checkpatch.pl
  configure: fixes indent of $meson setup
  docs/system/deprecated: Mark the 'moxie' CPU as deprecated
  Remove superfluous .gitignore files
  MAINTAINERS: Ignore bios-tables-test in the qtest section
  Add a comment in bios-tables-test.c to clarify the reason behind approach
  softmmu/vl: Be less verbose about missing KVM when running the qtests
  tests/migration: Allow longer timeouts
  qtest: add fuzz test case
  Acceptance tests: show test report on GitLab CI
  Acceptance tests: do not show canceled test logs on GitLab CI
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-13 12:46:26 +01:00
Thomas Huth
4258c8e221 docs/system/deprecated: Mark the 'moxie' CPU as deprecated
It is currently unclear whether anybody is still using the 'moxie' CPU,
and there are no images for testing available this CPU, so the code has
likely bit-rotten in the course of time. When I asked the maintainer
for information, I did not get a reply within four weeks yet (see
https://lists.gnu.org/archive/html/qemu-devel/2020-08/msg07201.html).
The last Signed-off-by line from Anthony in our repo is from 2013,
so it seems like this code is rather unmaintained. Time to put it onto
the deprecation list to see whether somebody is still interested in this
code or whether we could remove it in a couple of releases.

Message-Id: <20200923171815.97801-1-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-10-13 12:48:17 +02:00
Paolo Bonzini
bab88ead6f docs/devel: update instruction on how to add new unit tests
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-12 11:50:23 -04:00
Eduardo Habkost
51c778edd3 docs/devel/qtest: Include libqtest API reference
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201005205228.697463-4-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-12 11:50:23 -04:00
Eduardo Habkost
f59c6de7f0 docs/devel/qtest: Include protocol spec in document
Include the QTest Protocol doc string in docs/devel/qtest.rst,
after converting it to use Sphinx syntax.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201005205228.697463-3-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-12 11:50:22 -04:00
Eduardo Habkost
a738a50e62 docs: Move QTest documentation to its own document
The qtest and libqtest doc comments will be parsed to generate
API documentation, so move QTest documentation to its own
document where the API and format documentation and will be
included.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201005205228.697463-2-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-12 11:50:22 -04:00
Alex Bennée
f6698f2b03 tools/virtiofsd: add support for --socket-group
If you like running QEMU as a normal user (very common for TCG runs)
but you have to run virtiofsd as a root user you run into connection
problems. Adding support for an optional --socket-group allows the
users to keep using the command line.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>

Message-Id: <20200925125147.26943-2-alex.bennee@linaro.org>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
  dgilbert: Split long line
2020-10-12 12:39:38 +01:00
John Snow
1ec43ca42e docs: repair broken references
In two different places, we are not making a cross-reference to some
resource correctly.

Signed-off-by: John Snow <jsnow@redhat.com>
Message-Id: <20201009161558.107041-2-jsnow@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-10-10 11:37:46 +02:00
Peter Maydell
4a7c0bd9dc ppc patch queue 2020-10-09
Here's the next set of ppc related patches for qemu-5.2.  There are
 two main things here:
 
 * Cleanups to error handling in spapr from Greg Kurz
 * Improvements to NUMA handling for spapr from Daniel Barboza
 
 There are also a handful of other bugfixes.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.2-20201009' into staging

ppc patch queue 2020-10-09

Here's the next set of ppc related patches for qemu-5.2.  There are
two main things here:

* Cleanups to error handling in spapr from Greg Kurz
* Improvements to NUMA handling for spapr from Daniel Barboza

There are also a handful of other bugfixes.

# gpg: Signature made Fri 09 Oct 2020 07:02:29 BST
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-5.2-20201009:
  specs/ppc-spapr-numa: update with new NUMA support
  spapr_numa: consider user input when defining associativity
  spapr_numa: change reference-points and maxdomain settings
  spapr_numa: forbid asymmetrical NUMA setups
  spapr: add spapr_machine_using_legacy_numa() helper
  ppc/pnv: Increase max firmware size
  spapr: Add a return value to spapr_check_pagesize()
  spapr: Add a return value to spapr_nvdimm_validate()
  spapr: Simplify error handling in spapr_cpu_core_realize()
  spapr: Add a return value to spapr_set_vcpu_id()
  spapr: Simplify error handling in prop_get_fdt()
  spapr: Add a return value to spapr_drc_attach()
  spapr: Simplify error handling in spapr_vio_busdev_realize()
  spapr: Simplify error handling in do_client_architecture_support()
  spapr: Get rid of cas_check_pvr() error reporting
  spapr: Simplify error handling in callers of ppc_set_compat()
  ppc: Fix return value in cpu_post_load() error path
  ppc: Add a return value to ppc_set_compat() and ppc_set_compat_all()
  spapr: Fix error leak in spapr_realize_vcpu()
  spapr: Handle HPT allocation failure in nested guest

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-09 15:48:04 +01:00
Kevin Wolf
bb4b9ead95 hmp: Add support for coroutine command handlers
Often, QMP command handlers are not only called to handle QMP commands,
but also from a corresponding HMP command handler. In order to give them
a consistent environment, optionally run HMP command handlers in a
coroutine, too.

The implementation is a lot simpler than in QMP because for HMP, we
still block the VM while the coroutine is running.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20201005155855.256490-11-kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-10-09 07:08:20 +02:00
Kevin Wolf
04f22362f1 qapi: Add a 'coroutine' flag for commands
This patch adds a new 'coroutine' flag to QMP command definitions that
tells the QMP dispatcher that the command handler is safe to be run in a
coroutine.

The documentation of the new flag pretends that this flag is already
used as intended, which it isn't yet after this patch. We'll implement
this in another patch in this series.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20201005155855.256490-9-kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-10-09 07:08:19 +02:00
Daniel Henrique Barboza
307e7a34dc specs/ppc-spapr-numa: update with new NUMA support
This update provides more in depth information about the
choices and drawbacks of the new NUMA support for the
spapr machine.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20201007172849.302240-6-danielhb413@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-10-09 15:06:14 +11:00
Peter Maydell
497d415d76 target-arm queue:
* hw/ssi/npcm7xx_fiu: Fix handling of unsigned integer
  * hw/arm/fsl-imx25: Fix a typo
  * hw/arm/sbsa-ref : Fix SMMUv3 Initialisation
  * hw/arm/sbsa-ref : allocate IRQs for SMMUv3
  * hw/char/bcm2835_aux: Allow less than 32-bit accesses
  * hw/arm/virt: Implement kvm-steal-time
  * target/arm: Make '-cpu max' have a 48-bit PA
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 =B2p0
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20201008-1' into staging

target-arm queue:
 * hw/ssi/npcm7xx_fiu: Fix handling of unsigned integer
 * hw/arm/fsl-imx25: Fix a typo
 * hw/arm/sbsa-ref : Fix SMMUv3 Initialisation
 * hw/arm/sbsa-ref : allocate IRQs for SMMUv3
 * hw/char/bcm2835_aux: Allow less than 32-bit accesses
 * hw/arm/virt: Implement kvm-steal-time
 * target/arm: Make '-cpu max' have a 48-bit PA

# gpg: Signature made Thu 08 Oct 2020 21:40:31 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20201008-1:
  target/arm: Make '-cpu max' have a 48-bit PA
  hw/arm/virt: Implement kvm-steal-time
  tests/qtest: Restore aarch64 arm-cpu-features test
  hw/arm/virt: Move kvm pmu setup to virt_cpu_post_init
  hw/arm/virt: Move post cpu realize check into its own function
  target/arm/kvm: Make uncalled stubs explicitly unreachable
  linux headers: sync to 5.9-rc7
  hw/char/bcm2835_aux: Allow less than 32-bit accesses
  hw/arm/sbsa-ref : allocate IRQs for SMMUv3
  hw/arm/sbsa-ref : Fix SMMUv3 Initialisation
  hw/arm/fsl-imx25: Fix a typo
  hw/ssi/npcm7xx_fiu: Fix handling of unsigned integer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 21:41:20 +01:00
Andrew Jones
68970d1e0d hw/arm/virt: Implement kvm-steal-time
We add the kvm-steal-time CPU property and implement it for machvirt.
A tiny bit of refactoring was also done to allow pmu and pvtime to
use the same vcpu device helper functions.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-id: 20201001061718.101915-7-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 15:24:32 +01:00
Peter Maydell
a1d22c668a machine + QOM queue, 2020-10-06
* QOM documentation fixes and cleanups (Eduardo Habkost)
 * user-mode: Prune build dependencies (Philippe Mathieu-Daudé)
 * qom: Improve error message (Philippe Mathieu-Daudé)
 * numa: hmat: require parent cache description before the next
   level one (Igor Mammedov)
 -----BEGIN PGP SIGNATURE-----
 
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/ehabkost/tags/machine-next-pull-request' into staging

machine + QOM queue, 2020-10-06

* QOM documentation fixes and cleanups (Eduardo Habkost)
* user-mode: Prune build dependencies (Philippe Mathieu-Daudé)
* qom: Improve error message (Philippe Mathieu-Daudé)
* numa: hmat: require parent cache description before the next
  level one (Igor Mammedov)

# gpg: Signature made Tue 06 Oct 2020 23:09:03 BST
# gpg:                using RSA key 5A322FD5ABC4D3DBACCFD1AA2807936F984DC5A6
# gpg:                issuer "ehabkost@redhat.com"
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>" [full]
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-next-pull-request: (21 commits)
  numa: hmat: require parent cache description before the next level one
  kernel-doc: Remove $decl_type='type name' hack
  memory: Explicitly tag doc comments for structs
  qom: Explicitly tag doc comments for typedefs and structs
  kernel-doc: Handle function typedefs without asterisks
  kernel-doc: Handle function typedefs that return pointers
  docs/devel/qom: Avoid long lines
  docs/devel/qom: Remove usage of <code>
  docs/devel/qom: Use *emphasis* for emphasis
  docs/devel/qom: Fix indentation of code blocks
  docs/devel/qom: Fix indentation of bulleted list
  qom: Fix DECLARE_*CHECKER documentation
  qom: Improve error message displayed with missing object properties
  hw/core/cpu: Add missing 'exec/cpu-common.h' include
  hw/core/qdev-properties: Extract system-mode specific properties
  hw/core/qdev-properties: Export some integer-related functions
  hw/core/qdev-properties: Export qdev_prop_enum
  hw/core/qdev-properties: Export enum-related functions
  hw/core/qdev-properties: Fix code style
  hw/core/qdev-properties: Use qemu_strtoul() in set_pci_host_devaddr()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-08 11:32:54 +01:00
Eduardo Habkost
38a0d5bcde docs/devel/qom: Avoid long lines
Long code lines don't look good in the rendered documents, make
them shorter.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201003025424.199291-7-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-10-06 11:09:35 -04:00
Eduardo Habkost
acc34c2144 docs/devel/qom: Use *emphasis* for emphasis
<emphasis> is not valid reST syntax.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201003025424.199291-5-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-10-06 11:09:35 -04:00
Eduardo Habkost
671b3db056 docs/devel/qom: Fix indentation of code blocks
Some code blocks had one extra space, fix that.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201003025424.199291-4-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-10-06 11:09:35 -04:00
Eduardo Habkost
258c732769 docs/devel/qom: Fix indentation of bulleted list
The list was incorrectly parsed as a literal block due to
indentation.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20201003025424.199291-3-ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-10-06 11:09:35 -04:00
Peter Maydell
f2687fdb75 * Reverse debugging (Pavel)
* CFLAGS cleanup (Paolo)
 * ASLR fix (Mark)
 * cpus.c refactoring (Claudio)
 -----BEGIN PGP SIGNATURE-----
 
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 H+gzFsDoLPfCjZ3IhfZyvzF5leSZmdbFfzI0tHS1UJ/ZZYjutDvlPlbyYA==
 =Jys5
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

* Reverse debugging (Pavel)
* CFLAGS cleanup (Paolo)
* ASLR fix (Mark)
* cpus.c refactoring (Claudio)

# gpg: Signature made Tue 06 Oct 2020 07:35:09 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# 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-gitlab/tags/for-upstream: (37 commits)
  tests/acceptance: add reverse debugging test
  replay: create temporary snapshot at debugger connection
  replay: describe reverse debugging in docs/replay.txt
  gdbstub: add reverse continue support in replay mode
  gdbstub: add reverse step support in replay mode
  replay: flush rr queue before loading the vmstate
  replay: implement replay-seek command
  replay: introduce breakpoint at the specified step
  replay: introduce info hmp/qmp command
  qapi: introduce replay.json for record/replay-related stuff
  migration: introduce icount field for snapshots
  qcow2: introduce icount field for snapshots
  replay: provide an accessor for rr filename
  replay: don't record interrupt poll
  configure: don't enable ASLR for --enable-debug Windows builds
  configure: consistently pass CFLAGS/CXXFLAGS/LDFLAGS to meson
  configure: do not clobber environment CFLAGS/CXXFLAGS/LDFLAGS
  dtc: Convert Makefile bits to meson bits
  slirp: Convert Makefile bits to meson bits
  accel/tcg: use current_machine as it is always set for softmmu
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-10-06 15:04:10 +01:00
Pavel Dovgalyuk
9a608af3c0 replay: describe reverse debugging in docs/replay.txt
This patch updates the documentation and describes usage of the reverse
debugging in QEMU+GDB.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>

--

v4 changes:
 - added an example of the command line for reverse debugging of
   the diskless machine
Message-Id: <160174523509.12451.1409905901920738979.stgit@pasha-ThinkPad-X280>

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-06 08:34:49 +02:00
Pavel Dovgalyuk
bbacffc5f7 qcow2: introduce icount field for snapshots
This patch introduces the icount field for saving within the snapshot.
It is required for navigation between the snapshots in record/replay mode.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Acked-by: Kevin Wolf <kwolf@redhat.com>

--

v7 changes:
 - also fix the test which checks qcow2 snapshot extra data
Message-Id: <160174518284.12451.2301137308458777398.stgit@pasha-ThinkPad-X280>

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-06 08:34:49 +02:00
Claudio Fontana
8191d36841 icount: rename functions to be consistent with the module name
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-05 16:41:22 +02:00
Vladimir Sementsov-Ogievskiy
aaaa20b69b scripts: add block-coroutine-wrapper.py
We have a very frequent pattern of creating a coroutine from a function
with several arguments:

  - create a structure to pack parameters
  - create _entry function to call original function taking parameters
    from struct
  - do different magic to handle completion: set ret to NOT_DONE or
    EINPROGRESS or use separate bool field
  - fill the struct and create coroutine from _entry function with this
    struct as a parameter
  - do coroutine enter and BDRV_POLL_WHILE loop

Let's reduce code duplication by generating coroutine wrappers.

This patch adds scripts/block-coroutine-wrapper.py together with some
friends, which will generate functions with declared prototypes marked
by the 'generated_co_wrapper' specifier.

The usage of new code generation is as follows:

    1. define the coroutine function somewhere

        int coroutine_fn bdrv_co_NAME(...) {...}

    2. declare in some header file

        int generated_co_wrapper bdrv_NAME(...);

       with same list of parameters (generated_co_wrapper is
       defined in "include/block/block.h").

    3. Make sure the block_gen_c declaration in block/meson.build
       mentions the file with your marker function.

Still, no function is now marked, this work is for the following
commit.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200924185414.28642-5-vsementsov@virtuozzo.com>
[Added encoding='utf-8' to open() calls as requested by Vladimir. Fixed
typo and grammar issues pointed out by Eric Blake. Removed clang-format
dependency that caused build test issues.
--Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2020-10-05 10:59:06 +01:00
Kevin Wolf
443127e81b nbd: Deprecate nbd-server-add/remove
These QMP commands are replaced by block-export-add/del.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20200924152717.287415-28-kwolf@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-10-02 15:46:40 +02:00
Alberto Garcia
8e7b122bf8 docs: Document the throttle block filter
This filter was added back in 2017 for QEMU 2.11 but it was never
properly documented, so let's explain how it works and add a couple of
examples.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200921173016.27935-1-berto@igalia.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-10-02 15:46:40 +02:00
Thomas Huth
1b11f28d05 configure: Bump the minimum required Python version to 3.6
All our supported build platforms have Python 3.6 or newer nowadays, and
there are some useful features in Python 3.6 which are not available in
3.5 yet (e.g. the type hint annotations which will allow us to statically
type the QAPI parser), so let's bump the minimum Python version to 3.6 now.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200923162908.95372-1-thuth@redhat.com>
Message-Id: <20200925154027.12672-16-alex.bennee@linaro.org>
2020-10-02 12:29:23 +01:00
Pavel Pisa
de4d4adb58 hw/net/can: Documentation for CTU CAN FD IP open hardware core emulation.
Updated MAINTAINERS for CAN bus related emulation as well.

Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Message-Id: <6d1b8db69efc4e5cfad702d2150e1960e8f63572.1600069689.git.pisa@cmp.felk.cvut.cz>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:11:37 +02:00
Paolo Bonzini
9cb54b18e8 docs: Move object.h overview doc comment to qom.rst
Move the whole contents of the overview doc comment from object.h
to qom.rst.

This makes the documentation source easier to read and edit, and
also solves the backslash escaping issue at the typecasting macro
examples.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20200910221526.10041-10-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:11:36 +02:00
Eduardo Habkost
cd442a45db docs: Create docs/devel/qom.rst
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20200910221526.10041-9-ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:11:36 +02:00
Igor Mammedov
b057f0961b smp: drop support for deprecated (invalid topologies)
it's was deprecated since 3.1

Support for invalid topologies is removed, the user must ensure
that topologies described with -smp include all possible cpus,
i.e. (sockets * cores * threads) == maxcpus or QEMU will
exit with error.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by:
Message-Id: <20200911133202.938754-1-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:11:36 +02:00
Igor Mammedov
c01f250cb8 doc: Cleanup "'-mem-path' fallback to RAM" deprecation text
it was actually removed in 5.0,
commit 68a86dc15c (numa: remove deprecated -mem-path fallback to anonymous RAM)
clean up forgotten remnants in docs.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200911084410.788171-3-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:09:20 +02:00
Igor Mammedov
b21aa7e01e numa: drop support for '-numa node' (without memory specified)
it was deprecated since 4.1
commit 4bb4a2732e (numa: deprecate implict memory distribution between nodes)

Users of existing VMs, wishing to preserve the same RAM distribution,
should configure it explicitly using ``-numa node,memdev`` options.
Current RAM distribution can be retrieved using HMP command
`info numa` and if separate memory devices (pc|nv-dimm) are present
use `info memory-device` and subtract device memory from output of
`info numa`.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200911084410.788171-2-imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:09:20 +02:00
Paolo Bonzini
27d551c00d meson: clean up build_by_default
Build all executables by default except for the known-broken ones.

This also allows running qemu-iotests without manually building
socket_scm_helper.

Reported-by: Max Reitz <mreitz@redhat.com>
Tested-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-30 19:09:19 +02:00
Peter Maydell
55ec69f8b1 docs/devel/qapi-code-gen.txt: Update to new rST backend conventions
Update the documentation of QAPI document comment syntax to match
the new rST backend requirements. The principal changes are:
 * whitespace is now significant, and multiline definitions
   must have their second and subsequent lines indented to
   match the first line
 * general rST format markup is permitted, not just the small
   set of markup the old texinfo generator handled. For most
   things (notably bulleted and itemized lists) the old format
   was the same as rST is.
 * Specific things that might trip people up:
   - instead of *bold* and _italic_ rST has **bold** and *italic*
   - lists need a preceding and following blank line
   - a lone literal '*' will need to be backslash-escaped to
     avoid a rST syntax error
 * the old leading '|' for example (literal text) blocks is
   replaced by the standard rST '::' literal block.
 * we support arbitrary levels of sub- and sub-sub-heading, not
   just a main and sub-heading like the old texinfo generator
 * lists can now be nested

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-18-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message improved slightly]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29 17:55:39 +02:00
Peter Maydell
b3f4830ab3 meson.build: Make manuals depend on source to Sphinx extensions
The automatic dependency handling for Sphinx manuals only makes the output
depend on the input documentation files. This means that if you edit
the Python source of an extension then the documentation won't be
rebuilt.

Create a list of all the source files for the extensions and add
it to the dependencies for the manuals. This is similar to how we
handle the qapi_gen_depends list.

Because we don't try to identify which manuals are using which
Sphinx extensions, a change to the source of one extension will
always rebuild the entire manual set, not merely the manuals
which have changed. This is acceptable because we don't change
the extensions all that often.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-15-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Re rebuilding the enitre manual set being acceptable "because we
don't change the extensions all that often": we also rebuild it when
the QAPI generator code the qapidoc extension depends on changes.
This will inconvenience QAPI developers.  Can't be helped now.]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29 17:55:39 +02:00
Peter Maydell
eb937365fa meson.build: Move SPHINX_ARGS to top level meson.build file
We're going to want to use SPHINX_ARGS in both docs/meson.build
and tests/qapi-schema/meson.build. Move the definition up to the
top level file so it is available to both subdirectories.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-14-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29 17:55:39 +02:00
Peter Maydell
4ac2ee194b docs/interop: Convert qemu-qmp-ref to rST
Convert qemu-qmp-ref to rST format. This includes dropping
the plain-text, pdf and info format outputs for this document;
as with all our other Sphinx-based documentation, we provide
HTML and manpage only.

The qemu-qmp-ref.rst is somewhat more stripped down than
the .texi was, because we do not (currently) attempt to
generate indexes for the commands, events and data types
being documented.

Again, we drop the direct link from index.html.in now that
the QMP ref is part of the interop manual.

This commit removes the code from the root meson.build file that
handled the various Texinfo-based outputs, because we no longer
generate any documentation except for the Sphinx HTML manuals and the
manpages, and the code can't handle having an empty list of files
to process.. We'll do further cleanup of the remainders of
Texinfo support in subsequent commits.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-10-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Unicode legacy literal dumbed down to plain string literal, TODO
comment on displaying QEMU version added, "make html" fixed,
storage-daemon/qapi/meson.build updated]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29 17:55:39 +02:00
Peter Maydell
db16115f87 docs/interop: Convert qemu-ga-ref to rST
Convert qemu-ga-ref to rST format. This includes dropping
the plain-text, pdf and info format outputs for this document;
as with all our other Sphinx-based documentation, we provide
HTML and manpage only.

The qemu-ga-ref.rst is somewhat more stripped down than
the .texi was, because we do not (currently) attempt to
generate indexes for the commands, events and data types
being documented.

As the GA ref is now part of the Sphinx 'interop' manual,
we can delete the direct link from index.html.in.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-9-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Unicode legacy literal dumbed down to plain string literal, TODO
comment on displaying QEMU version added]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29 17:55:39 +02:00
Peter Maydell
4078ee5469 docs/sphinx: Add new qapi-doc Sphinx extension
Some of our documentation is auto-generated from documentation
comments in the JSON schema.

For Sphinx, rather than creating a file to include, the most natural
way to handle this is to have a small custom Sphinx extension which
processes the JSON file and inserts documentation into the rST
file being processed.

This is the same approach that kerneldoc and hxtool use.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-8-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Comment and doc string formatting tweaked, unused method dropped,
a few line breaks tweaked to follow PEP 8 more closely, MAINTAINERS
section QAPI updated]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29 17:55:39 +02:00
Peter Maydell
a69a6d4b4d scripts/qapi/parser.py: improve doc comment indent handling
Make the handling of indentation in doc comments more sophisticated,
so that when we see a section like:

Notes: some text
       some more text
          indented line 3

we save it for the doc-comment processing code as:

some text
some more text
   indented line 3

and when we see a section with the heading on its own line:

Notes:

some text
some more text
   indented text

we also accept that and save it in the same form.

If we detect that the comment document text is not indented as much
as we expect it to be, we throw a parse error.  (We don't complain
about over-indented sections, because for rST this can be legitimate
markup.)

The golden reference for the doc comment text is updated to remove
the two 'wrong' indents; these now form a test case that we correctly
stripped leading whitespace from an indented multi-line argument
definition.

We update the documentation in docs/devel/qapi-code-gen.txt to
describe the new indentation rules.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200925162316.21205-6-peter.maydell@linaro.org>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Whitespace between sentences tweaked]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-29 17:55:39 +02:00
Igor Mammedov
63e79833c4 cphp: remove deprecated cpu-add command(s)
These were deprecated since 4.0, remove both HMP and QMP variants.

Users should use device_add command instead. To get list of
possible CPUs and options, use 'info hotpluggable-cpus' HMP
or query-hotpluggable-cpus QMP command.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Acked-by: Cornelia Huck <cohuck@redhat.com>
Message-Id: <20200915120403.1074579-1-imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2020-09-29 02:14:30 -04:00
Peter Maydell
92d0950267 Trivial Patches Pull request 20200928
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Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-5.2-pull-request' into staging

Trivial Patches Pull request 20200928

# gpg: Signature made Mon 28 Sep 2020 10:15:00 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-5.2-pull-request:
  docs/system/deprecated: Move lm32 and unicore32 to the right section
  migration/multifd: Remove superfluous semicolons
  timer: Fix timer_mod_anticipate() documentation
  vhost-vdpa: remove useless variable
  Add *.pyc back to the .gitignore file
  virtio: vdpa: omit check return of g_malloc
  meson: fix static flag summary
  vhost-vdpa: fix indentation in vdpa_ops

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-28 14:03:09 +01:00
Harry G. Coin
f1303afe22 virtiofsd: document cache=auto default
The virtiofsd --help output documents the cache=auto default value but
the man page does not. Fix this.

Signed-off-by: Harry G. Coin <hgcoin@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-Id: <20200916112250.760245-1-stefanha@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-09-25 12:45:58 +01:00
Peter Maydell
8c1c07929f Pull request
This includes the atomic_ -> qatomic_ rename that touches many files and is
 prone to conflicts.
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging

Pull request

This includes the atomic_ -> qatomic_ rename that touches many files and is
prone to conflicts.

# gpg: Signature made Wed 23 Sep 2020 17:08:43 BST
# gpg:                using RSA key 8695A8BFD3F97CDAAC35775A9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>" [full]
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>" [full]
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/block-pull-request:
  qemu/atomic.h: rename atomic_ to qatomic_
  tests: add test-fdmon-epoll
  fdmon-poll: reset npfd when upgrading to fdmon-epoll
  gitmodules: add qemu.org vbootrom submodule
  gitmodules: switch to qemu.org meson mirror
  gitmodules: switch to qemu.org qboot mirror
  docs/system: clarify deprecation schedule
  virtio-crypto: don't modify elem->in/out_sg
  virtio-blk: undo destructive iov_discard_*() operations
  util/iov: add iov_discard_undo()
  virtio: add vhost-user-fs-ccw device
  libvhost-user: handle endianness as mandated by the spec
  MAINTAINERS: add Stefan Hajnoczi as block/nvme.c maintainer

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-24 18:48:45 +01:00
Thomas Huth
c66790b5df docs/system/deprecated: Move lm32 and unicore32 to the right section
lm32 and unicore32 are softmmut targets, and not linux-user targets.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200923080015.77373-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-23 19:19:57 +02:00
Stefan Hajnoczi
d73415a315 qemu/atomic.h: rename atomic_ to qatomic_
clang's C11 atomic_fetch_*() functions only take a C11 atomic type
pointer argument. QEMU uses direct types (int, etc) and this causes a
compiler error when a QEMU code calls these functions in a source file
that also included <stdatomic.h> via a system header file:

  $ CC=clang CXX=clang++ ./configure ... && make
  ../util/async.c:79:17: error: address argument to atomic operation must be a pointer to _Atomic type ('unsigned int *' invalid)

Avoid using atomic_*() names in QEMU's atomic.h since that namespace is
used by <stdatomic.h>. Prefix QEMU's APIs with 'q' so that atomic.h
and <stdatomic.h> can co-exist. I checked /usr/include on my machine and
searched GitHub for existing "qatomic_" users but there seem to be none.

This patch was generated using:

  $ git grep -h -o '\<atomic\(64\)\?_[a-z0-9_]\+' include/qemu/atomic.h | \
    sort -u >/tmp/changed_identifiers
  $ for identifier in $(</tmp/changed_identifiers); do
        sed -i "s%\<$identifier\>%q$identifier%g" \
            $(git grep -I -l "\<$identifier\>")
    done

I manually fixed line-wrap issues and misaligned rST tables.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20200923105646.47864-1-stefanha@redhat.com>
2020-09-23 16:07:44 +01:00
Stefan Hajnoczi
ef1f5b0a96 docs/system: clarify deprecation schedule
The sentence explaining the deprecation schedule is ambiguous. Make it
clear that a feature deprecated in the Nth release is guaranteed to
remain available in the N+1th release. Removal can occur in the N+2nd
release or later.

As an example of this in action, see commit
25956af3fe ("block: Finish deprecation of
'qemu-img convert -n -o'"). The feature was deprecated in QEMU 4.2.0. It
was present in the 5.0.0 release and removed in the 5.1.0 release.

Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200915150734.711426-1-stefanha@redhat.com>
2020-09-23 13:42:02 +01:00
Igor Mammedov
c4332cd1dc smp: drop support for deprecated (invalid topologies)
it's was deprecated since 3.1

Support for invalid topologies is removed, the user must ensure
that topologies described with -smp include all possible cpus,
i.e. (sockets * cores * threads) == maxcpus or QEMU will
exit with error.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20200911133202.938754-1-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-22 16:45:16 -04:00
Peter Maydell
834b9273d5 Pull request trivial patches 20200919
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Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-5.2-pull-request' into staging

Pull request trivial patches 20200919

# gpg: Signature made Sat 19 Sep 2020 19:43:35 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-5.2-pull-request:
  contrib/: fix some comment spelling errors
  qapi/: fix some comment spelling errors
  disas/: fix some comment spelling errors
  linux-user/: fix some comment spelling errors
  util/: fix some comment spelling errors
  scripts/: fix some comment spelling errors
  docs/: fix some comment spelling errors
  migration/: fix some comment spelling errors
  qemu/: fix some comment spelling errors
  scripts/git.orderfile: Display meson files along with buildsys ones
  hw/timer/hpet: Fix debug format strings
  hw/timer/hpet: Remove unused functions hpet_ram_readb, hpet_ram_readw
  meson: remove empty else and duplicated gio deps
  manual: escape backslashes in "parsed-literal" blocks
  ui/spice-input: Remove superfluous forward declaration
  hw/ppc/ppc4xx_pci: Replace magic value by the PCI_NUM_PINS definition
  hw/gpio/max7310: Remove impossible check

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-22 15:42:23 +01:00
Vitaly Kuznetsov
f701c082e7 i386/kvm: correct the meaning of '0xffffffff' value for hv-spinlocks
Hyper-V TLFS prior to version 6.0 had a mistake in it: special value
'0xffffffff' for CPUID 0x40000004.EBX was called 'never to retry', this
looked weird (like why it's not '0' which supposedly have the same effect?)
but nobody raised the question. In TLFS version 6.0 the mistake was
corrected to 'never notify' which sounds logical. Fix QEMU accordingly.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Message-Id: <20200515114847.74523-1-vkuznets@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2020-09-18 13:49:54 -04:00
Cédric Le Goater
9820e52fbe hw/arm/aspeed: Add machine properties to define the flash models
Some machines don't have much differences a part from the flash model
being used. Introduce new machine properties to change them from the
command line.

For instance, to start the ast2500-evb machine with a different FMC
chip and a 64M SPI chip, use :

  -M ast2500-evb,fmc-model=mx25l25635e,spi-model=mx66u51235f

Cc: 郁雷 <yulei.sh@bytedance.com>
Reviewed-by: Joel Stanley <joel@jms.id.au>
Tested-by: Lei YU <yulei.sh@bytedance.com>
Message-Id: <20200915054859.2338477-1-clg@kaod.org>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
2020-09-18 09:04:36 +02:00
zhaolichang
76ca4b58c2 docs/: fix some comment spelling errors
I found that there are many spelling errors in the comments of qemu,
so I used the spellcheck tool to check the spelling errors
and finally found some spelling errors in the docs folder.

Signed-off-by: zhaolichang <zhaolichang@huawei.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200917075029.313-4-zhaolichang@huawei.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-17 20:37:13 +02:00
Laszlo Ersek
353a06b425 manual: escape backslashes in "parsed-literal" blocks
According to
<https://docutils.sourceforge.io/docs/ref/rst/directives.html#parsed-literal>,
"inline markup is recognized and there is no protection from parsing.
Backslash-escapes may be necessary to prevent unintended parsing".

The qemu(1) manual page (formatted with Sphinx 2.2.2) has several overlong
lines on my system. A stand-alone backslash at EOL serves as line
continuation in a "parsed-literal" block. Therefore, escape the
backslashes that we want to appear as such in the formatted documentation.

Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200908172111.19072-1-lersek@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-16 10:52:34 +02:00
Havard Skinnemoen
82c703fea4 docs/system: Add Nuvoton machine documentation
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Havard Skinnemoen <hskinnemoen@google.com>
Message-id: 20200911052101.2602693-14-hskinnemoen@google.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-14 14:24:59 +01:00
Peter Maydell
d849800512 Deprecate lm32 port
Deprecate our lm32 target support. Michael Walle (former lm32 maintainer)
suggested that we do this in 2019:
 https://www.mail-archive.com/qemu-devel@nongnu.org/msg605024.html
because the only public user of the architecture is the many-years-dead
milkymist project. (The Linux port to lm32 was never merged upstream.)

In commit 4b4d96c776 (March 2020) we marked it as 'orphan' in
the MAINTAINERS file, but didn't officially deprecate it. Mark it
deprecated now, with the intention of removing it from QEMU in
mid-2021 before the 6.1 release.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Michael Walle <michael@walle.cc>
Message-id: 20200827113259.25064-1-peter.maydell@linaro.org
2020-09-14 14:24:15 +01:00
Peter Maydell
8e4ff4a8d2 Deprecate Unicore32 port
Deprecate our Unicore32 target support:
 * the Linux kernel dropped support for unicore32 in commit
   05119217a9bd199c for its 5.9 release (with rationale in the
   cover letter: https://lkml.org/lkml/2020/8/3/232 )
 * there is apparently no upstream toolchain that can create unicore32
   binaries
 * the maintainer doesn't seem to have made any contributions to
   QEMU since the port first landed in 2012
 * nobody else seems to have made changes to the unicore code except
   for generic cleanups either

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Message-id: 20200825172719.19422-1-peter.maydell@linaro.org
2020-09-14 14:24:15 +01:00
Peter Maydell
99dfb04a2e docs/system/arm/mps2.rst: Make board list consistent
Make the list of MPS2 boards consistent in the phrasing of each
entry, use the correct casing of "Arm", and move the mps2-an511
entry so the list is in numeric order.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200903202048.15370-4-peter.maydell@linaro.org
2020-09-14 14:24:15 +01:00
Peter Maydell
6d4811c4b6 hw/arm/mps2: New board model mps2-an500
Implement a model of the MPS2 with the AN500 firmware. This is
similar to the AN385, with the following differences:
 * Cortex-M7 CPU
 * PSRAM is at 0x6000_0000
 * Ethernet is at 0xa000_0000
 * No zbt_boot_ctrl remapping of the low 16K
   (but QEMU doesn't implement this anyway)
 * no "block RAM" at 0x01000000

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200903202048.15370-3-peter.maydell@linaro.org
2020-09-14 14:23:19 +01:00
Peter Maydell
897d27260a hw/arm/mps2: New board model mps2-an386
Implement a model of the MPS2 with the AN386 firmware. This is
essentially identical to the AN385 firmware, but it has a
Cortex-M4 rather than a Cortex-M3.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 20200903202048.15370-2-peter.maydell@linaro.org
2020-09-14 14:23:19 +01:00
Peter Maydell
82bf7ae84c target/arm: Remove KVM support for 32-bit Arm hosts
We deprecated the support for KVM on 32-bit Arm hosts in time
for release 5.0, which means that our deprecation policy allows
us to drop it in release 5.2. Remove the code.

To repeat the rationale from the deprecation note: the Linux
kernel dropped support for 32-bit Arm KVM hosts in 5.7.

Running 32-bit guests on a 64-bit Arm host remains supported.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20200904154156.31943-2-peter.maydell@linaro.org
2020-09-14 14:23:19 +01:00
Alex Bennée
c17a386b6a plugins: move the more involved plugins to contrib
We have an exploding complexity problem in the testing so lets just
move the more involved plugins into contrib. tests/plugins still exist
for the basic plugins that exercise the API. We restore the old
pre-meson style Makefile for contrib as it also doubles as a guide for
out-of-tree plugin builds.

While we are at it add some examples to the documentation and a
specific plugins build target.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20200909112742.25730-11-alex.bennee@linaro.org>
2020-09-10 10:47:03 +01:00
Alex Bennée
c609274b85 docs/system/deprecated: mark ppc64abi32-linux-user for deprecation
It's buggy and we are not sure anyone uses it.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20200909112742.25730-6-alex.bennee@linaro.org>
2020-09-10 10:44:01 +01:00
Peter Maydell
6779038537 QAPI patches patches for 2020-09-08
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2020-09-08' into staging

QAPI patches patches for 2020-09-08

# gpg: Signature made Tue 08 Sep 2020 07:06:52 BST
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2020-09-08:
  qapi/block-core.json: Fix nbd-server-start docs
  qapi: Fix indentation, again
  qapi/migration.json: Fix indentation
  qapi: Make section headings start a new doc comment block
  qapi: Reject section markup in definition documentation

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-08 17:23:31 +01:00
Paolo Bonzini
ef6a0d6e39 docs: update build system documentation
Most of the Makefile bits are obsolete and can be removed.

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-08 11:43:16 +02:00
Paolo Bonzini
738aa60624 docs: suggest Meson replacements for various configure functions
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-08 11:43:16 +02:00
Paolo Bonzini
b6daf4d369 configure: do not look for install(1)
It is not used anymore, so there is no Solaris-specific check to
perform.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-08 11:43:16 +02:00
Paolo Bonzini
660f793093 Makefile: inline the relevant parts of rules.mak
Most of rules.mak is not used anymore, just inline what's needed.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-08 11:43:16 +02:00
Markus Armbruster
d98884b75d qapi: Reject section markup in definition documentation
Section markup in definition documentation makes no sense and can
produce invalid Texinfo.  Reject.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200320091805.5585-2-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2020-09-07 16:35:16 +02:00
Markus Armbruster
923fbd4cbd docs/qdev-device-use: Don't suggest -drive and -net can do USB
Commit 480324ec8d "docs/qdev-device-use: Clean up the sentences
related to -usbdevice" deleted the information on syntax that no
longer works.  Unfortunately, the resulting text suggests you can
configure USB block devices with -drive, and USB network devices with
-net, which is misleading.

Instead of rephrasing the now misleading text, I'm putting the
information back, and just make clear it's about old versions of QEMU.

Cc: Thomas Huth <thuth@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200806081147.3123652-4-armbru@redhat.com>
2020-09-03 09:58:39 +02:00
Markus Armbruster
a7742549ea docs/interop/qmp-spec: Point to the QEMU QMP reference manual
Commit 4d8bb958fa0..231aaf3a821 integrated the contents of
docs/qmp-events.txt into QAPI schema doc comments.  It left dangling
references to qmp-events.txt behind.  Fix to point to the QEMU QMP
reference manual generated from the QAPI schema.

Add a similar reference for commands.

Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200806081147.3123652-2-armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2020-09-03 09:58:02 +02:00
Daniel P. Berrangé
221db5daf6 qapi: enable use of g_autoptr with QAPI types
Currently QAPI generates a type and function for free'ing it:

  typedef struct QCryptoBlockCreateOptions QCryptoBlockCreateOptions;
  void qapi_free_QCryptoBlockCreateOptions(QCryptoBlockCreateOptions *obj);

This is used in the traditional manner:

  QCryptoBlockCreateOptions *opts = NULL;

  opts = g_new0(QCryptoBlockCreateOptions, 1);

  ....do stuff with opts...

  qapi_free_QCryptoBlockCreateOptions(opts);

Since bumping the min glib to 2.48, QEMU has incrementally adopted the
use of g_auto/g_autoptr. This allows the compiler to run a function to
free a variable when it goes out of scope, the benefit being the
compiler can guarantee it is freed in all possible code ptahs.

This benefit is applicable to QAPI types too, and given the seriously
long method names for some qapi_free_XXXX() functions, is much less
typing. This change thus makes the code generator emit:

 G_DEFINE_AUTOPTR_CLEANUP_FUNC(QCryptoBlockCreateOptions,
                              qapi_free_QCryptoBlockCreateOptions)

The above code example now becomes

  g_autoptr(QCryptoBlockCreateOptions) opts = NULL;

  opts = g_new0(QCryptoBlockCreateOptions, 1);

  ....do stuff with opts...

Note, if the local pointer needs to live beyond the scope holding the
variable, then g_steal_pointer can be used. This is useful to return the
pointer to the caller in the success codepath, while letting it be freed
in all error codepaths.

  return g_steal_pointer(&opts);

The crypto/block.h header needs updating to avoid symbol clash now that
the g_autoptr support is a standard QAPI feature.

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20200723153845.2934357-1-berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-09-03 09:38:36 +02:00
Peter Maydell
887adde81d meson fixes:
* bump submodule to 0.55.1
 * SDL, pixman and zlib fixes
 * firmwarepath fix
 * fix firmware builds
 
 meson related:
 * move install to Meson
 * move NSIS to Meson
 * do not make meson use cmake
 * add description to options
 -----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging

meson fixes:
* bump submodule to 0.55.1
* SDL, pixman and zlib fixes
* firmwarepath fix
* fix firmware builds

meson related:
* move install to Meson
* move NSIS to Meson
* do not make meson use cmake
* add description to options

# gpg: Signature made Tue 01 Sep 2020 17:11:03 BST
# gpg:                using RSA key F13338574B662389866C7682BFFBD25F78C7AE83
# gpg:                issuer "pbonzini@redhat.com"
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>" [full]
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>" [full]
# 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-gitlab/tags/for-upstream: (26 commits)
  Makefile: Fix in-tree clean/distclean
  Makefile: Add back TAGS/ctags/cscope rules
  meson: add description to options
  build: fix recurse-all target
  meson: use pkg-config method to find dependencies
  configure: do not include ${prefix} in firmwarepath
  meson: add pixman dependency to UI modules
  meson: add pixman dependency to chardev/baum module
  meson: add NSIS building
  meson: use meson mandir instead of qemu_mandir
  meson: pass docdir option
  meson: use meson datadir instead of qemu_datadir
  meson: pass qemu_suffix option
  configure: build docdir like other suffixed directories
  configure: always /-seperate directory from qemu_suffix
  configure: rename confsuffix option
  meson: move zlib detection to meson
  build-sys: remove install target from Makefile
  meson: install $localstatedir/run for qga
  meson: install desktop file
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-01 22:50:23 +01:00
Peter Maydell
071a6dba7d Pull request trivial patches 20200901
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 =mJ/w
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/vivier2/tags/trivial-branch-for-5.2-pull-request' into staging

Pull request trivial patches 20200901

# gpg: Signature made Tue 01 Sep 2020 15:08:59 BST
# gpg:                using RSA key CD2F75DDC8E3A4DC2E4F5173F30C38BD3F2FBE3C
# gpg:                issuer "laurent@vivier.eu"
# gpg: Good signature from "Laurent Vivier <lvivier@redhat.com>" [full]
# gpg:                 aka "Laurent Vivier <laurent@vivier.eu>" [full]
# gpg:                 aka "Laurent Vivier (Red Hat) <lvivier@redhat.com>" [full]
# Primary key fingerprint: CD2F 75DD C8E3 A4DC 2E4F  5173 F30C 38BD 3F2F BE3C

* remotes/vivier2/tags/trivial-branch-for-5.2-pull-request: (44 commits)
  docs/system: Fix grammar in documentation
  main-loop: Fix comment
  hw/display/vga:Remove redundant statement in vga_draw_graphic()
  hw/intc: fix default registers value in exynos4210_combiner_read()
  usb/bus: Remove dead assignment in usb_get_fw_dev_path()
  vfio/platform: Remove dead assignment in vfio_intp_interrupt()
  hw/net/virtio-net:Remove redundant statement in virtio_net_rsc_tcp_ctrl_check()
  hw/virtio/vhost-user:Remove dead assignment in scrub_shadow_regions()
  target/arm/translate-a64:Remove redundant statement in disas_simd_two_reg_misc_fp16()
  target/arm/translate-a64:Remove dead assignment in handle_scalar_simd_shli()
  hw/arm/omap1:Remove redundant statement in omap_clkdsp_read()
  hw/arm/virt-acpi-build:Remove dead assignment in build_madt()
  linux-user: Add strace support for printing OFD fcntl operations
  util/vfio-helpers: Unify trace-events size format
  hw/net/xilinx_axienet: Remove unused code
  hw/scsi/scsi-disk: Replace magic '512' value by BDRV_SECTOR_SIZE
  hw/ide/pci: Replace magic '512' value by BDRV_SECTOR_SIZE
  hw/ide/atapi: Replace magic '512' value by BDRV_SECTOR_SIZE
  hw/ide/ahci: Replace magic '512' value by BDRV_SECTOR_SIZE
  hw/ide/core: Trivial typo fix
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-09-01 15:19:33 +01:00
Paolo Bonzini
1a94933fcc meson: use pkg-config method to find dependencies
We do not need to ask cmake for the dependencies, so just use the
pkg-config mechanism.  Keep "auto" for SDL so that it tries using
sdl-config too.

The documentation is adjusted to use SDL2_image as the example,
rather than SDL which does not use the "pkg-config" method.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-01 08:51:35 -04:00
Marc-André Lureau
491e74c158 meson: pass docdir option
When cross-compiling, by default qemu_docdir is 'c:\Program Files\QEMU\'
which is not recognized as being an absolute path, and meson will end up
adding the prefix again.

Add an option to pass docdir location to meson, pre-prefixed like we do
with other directories, build qemu_docdir with the common suffix and use
that instead of config_host['qemu_docdir'].

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20200826110419.528931-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-09-01 08:51:33 -04:00
Stefan Weil
1eef4ba6be docs/system: Fix grammar in documentation
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200827173051.31050-1-sw@weilnetz.de>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-01 12:09:30 +02:00
Thomas Huth
0abd386d8b docs/system/target-avr: Improve the AVR docs and add to MAINTAINERS
The examples look nicer when using "::" code blocks.
Also mention that "-d in_asm" only outputs instructions that have not
been translated by the JIT layer yet.
And while we're at it, also add the AVR doc file to the MAINTAINERS file.

Signed-off-by: Thomas Huth <huth@tuxfamily.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Michael Rolnik <mrolnik@gmail.com>
Message-Id: <20200812155304.18016-1-huth@tuxfamily.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-01 11:15:00 +02:00
Han Han
4aeae1d4d7 docs: Fix broken links
Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200807101736.3544506-1-hhan@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2020-09-01 09:31:33 +02:00
César Belley
d7c1523f58 hw/usb: Add U2F device autoscan to passthru mode
This patch adds an autoscan to let u2f-passthru choose the first U2F
device it finds.

The autoscan is performed using libudev with an enumeration of all the
hidraw devices present on the host.

The first device which happens to be a U2F device is taken to do the
passtru.

Signed-off-by: César Belley <cesar.belley@lse.epita.fr>
Message-id: 20200826114209.28821-13-cesar.belley@lse.epita.fr
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31 08:23:39 +02:00
César Belley
c81737e537 docs/qdev-device-use.txt: Add USB U2F key to the QDEV devices examples
Signed-off-by: César Belley <cesar.belley@lse.epita.fr>
Message-id: 20200826114209.28821-10-cesar.belley@lse.epita.fr
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31 08:23:39 +02:00
César Belley
15e557b716 docs/system: Add U2F key to the USB devices examples
Signed-off-by: César Belley <cesar.belley@lse.epita.fr>
Message-id: 20200826114209.28821-9-cesar.belley@lse.epita.fr
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31 08:23:39 +02:00
César Belley
785f558b6a docs: Add USB U2F key device documentation
Add USB U2F key device documentation:
- USB U2F key device
- Building
- Using u2f-emulated
- Using u2f-passthru
- Libu2f-emu

Signed-off-by: César Belley <cesar.belley@lse.epita.fr>
Message-id: 20200826114209.28821-3-cesar.belley@lse.epita.fr
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-08-31 08:10:47 +02:00
Sergio Lopez
e9a78564a1 virtiofsd: Remove "norace" from cmdline help and docs
Commit 93bb3d8d4c ("virtiofsd: remove symlink fallbacks") removed
the implementation of the "norace" option, so remove it from the
cmdline help and the documentation too.

Signed-off-by: Sergio Lopez <slp@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20200717121110.50580-1-slp@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-08-28 13:34:52 +01:00
Vivek Goyal
88fc107956 virtiofsd: Disable remote posix locks by default
Right now we enable remote posix locks by default. That means when guest
does a posix lock it sends request to server (virtiofsd). But currently
we only support non-blocking posix lock and return -EOPNOTSUPP for
blocking version.

This means that existing applications which are doing blocking posix
locks get -EOPNOTSUPP and fail. To avoid this, people have been
running virtiosd with option "-o no_posix_lock". For new users it
is still a surprise and trial and error takes them to this option.

Given posix lock implementation is not complete in virtiofsd, disable
it by default. This means that posix locks will work with-in applications
in a guest but not across guests. Anyway we don't support sharing
filesystem among different guests yet in virtiofs so this should
not lead to any kind of surprise or regression and will make life
little easier for virtiofs users.

Reported-by: Aa Aa <jimbothom@yandex.com>
Suggested-by: Miklos Szeredi <mszeredi@redhat.com>
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Misono Tomohiro <misono.tomohiro@jp.fujitsu.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2020-08-28 13:34:52 +01:00
Thomas Huth
70c04a7ca2 docs/system/s390x: Add a chapter about s390x boot devices
Booting on s390x is a little bit different compared to other architectures.
Let's add some information for people who are not yet used to this.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200806150507.12073-1-thuth@redhat.com>
[CH: minor wording tweaks]
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
2020-08-27 12:37:03 +02:00
Alberto Garcia
30afc12085 qcow2: Document the Extended L2 Entries feature
Subcluster allocation in qcow2 is implemented by extending the
existing L2 table entries and adding additional information to
indicate the allocation status of each subcluster.

This patch documents the changes to the qcow2 format and how they
affect the calculation of the L2 cache size.

Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <5199f2e1c717bcaa58b48142c9062b803145ff7f.1594396418.git.berto@igalia.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2020-08-25 08:33:20 +02:00
Peter Maydell
07d914cb94 target-arm queue:
* hw/cpu/a9mpcore: Verify the machine use Cortex-A9 cores
  * hw/arm/smmuv3: Implement SMMUv3.2 range-invalidation
  * docs/system/arm: Document the Xilinx Versal Virt board
  * target/arm: Make M-profile NOCP take precedence over UNDEF
  * target/arm: Use correct FPST for VCMLA, VCADD on fp16
  * target/arm: Various cleanups preparing for fp16 support
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200824' into staging

target-arm queue:
 * hw/cpu/a9mpcore: Verify the machine use Cortex-A9 cores
 * hw/arm/smmuv3: Implement SMMUv3.2 range-invalidation
 * docs/system/arm: Document the Xilinx Versal Virt board
 * target/arm: Make M-profile NOCP take precedence over UNDEF
 * target/arm: Use correct FPST for VCMLA, VCADD on fp16
 * target/arm: Various cleanups preparing for fp16 support

# gpg: Signature made Mon 24 Aug 2020 10:47:14 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20200824: (27 commits)
  target/arm: Use correct FPST for VCMLA, VCADD on fp16
  target/arm: Implement FPST_STD_F16 fpstatus
  target/arm: Make A32/T32 use new fpstatus_ptr() API
  target/arm: Replace A64 get_fpstatus_ptr() with generic fpstatus_ptr()
  target/arm: Delete unused ARM_FEATURE_CRC
  target/arm/translate.c: Delete/amend incorrect comments
  target/arm: Delete unused VFP_DREG macros
  target/arm: Remove ARCH macro
  target/arm: Convert T32 coprocessor insns to decodetree
  target/arm: Do M-profile NOCP checks early and via decodetree
  target/arm: Tidy up disas_arm_insn()
  target/arm: Convert A32 coprocessor insns to decodetree
  target/arm: Separate decode from handling of coproc insns
  target/arm: Pull handling of XScale insns out of disas_coproc_insn()
  docs/system/arm: Document the Xilinx Versal Virt board
  hw/arm/smmuv3: Advertise SMMUv3.2 range invalidation
  hw/arm/smmuv3: Support HAD and advertise SMMUv3.1 support
  hw/arm/smmuv3: Let AIDR advertise SMMUv3.0 support
  hw/arm/smmuv3: Fix IIDR offset
  hw/arm/smmuv3: Get prepared for range invalidation
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-24 12:13:09 +01:00
Edgar E. Iglesias
ff9e157bdc docs/system/arm: Document the Xilinx Versal Virt board
Document the Xilinx Versal Virt board.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Message-id: 20200803164749.301971-2-edgar.iglesias@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-24 10:02:06 +01:00
Peter Maydell
dd8014e4e9 ppc patch queue 2020-08-18
Here's my first pull request for qemu-5.2, which has quite a few
 accumulated things.  Highlights are:
 
  * Preliminary support for POWER10 (Power ISA 3.1) instruction emulation
  * Add documentation on the (very confusing) pseries NUMA configuration
  * Fix some bugs handling edge cases with XICS, XIVE and kernel_irqchip
  * Fix icount for a number of POWER registers
  * Many cleanups to error handling in XIVE code
  * Validate size of -prom-env data
 -----BEGIN PGP SIGNATURE-----
 
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 =L9Wi
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-5.2-20200818' into staging

ppc patch queue 2020-08-18

Here's my first pull request for qemu-5.2, which has quite a few
accumulated things.  Highlights are:

 * Preliminary support for POWER10 (Power ISA 3.1) instruction emulation
 * Add documentation on the (very confusing) pseries NUMA configuration
 * Fix some bugs handling edge cases with XICS, XIVE and kernel_irqchip
 * Fix icount for a number of POWER registers
 * Many cleanups to error handling in XIVE code
 * Validate size of -prom-env data

# gpg: Signature made Tue 18 Aug 2020 05:18:36 BST
# gpg:                using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-5.2-20200818: (40 commits)
  spapr/xive: Use xive_source_esb_len()
  nvram: Exit QEMU if NVRAM cannot contain all -prom-env data
  spapr/xive: Simplify error handling of kvmppc_xive_cpu_synchronize_state()
  ppc/xive: Simplify error handling in xive_tctx_realize()
  spapr/xive: Simplify error handling in kvmppc_xive_connect()
  ppc/xive: Fix error handling in vmstate_xive_tctx_*() callbacks
  spapr/xive: Fix error handling in kvmppc_xive_post_load()
  spapr/kvm: Fix error handling in kvmppc_xive_pre_save()
  spapr/xive: Rework error handling of kvmppc_xive_set_source_config()
  spapr/xive: Rework error handling in kvmppc_xive_get_queues()
  spapr/xive: Rework error handling of kvmppc_xive_[gs]et_queue_config()
  spapr/xive: Rework error handling of kvmppc_xive_cpu_[gs]et_state()
  spapr/xive: Rework error handling of kvmppc_xive_mmap()
  spapr/xive: Rework error handling of kvmppc_xive_source_reset()
  spapr/xive: Rework error handling of kvmppc_xive_cpu_connect()
  spapr: Simplify error handling in spapr_phb_realize()
  spapr/xive: Convert KVM device fd checks to assert()
  ppc/xive: Introduce dedicated kvm_irqchip_in_kernel() wrappers
  ppc/xive: Rework setup of XiveSource::esb_mmio
  target/ppc: Integrate icount to purr, vtb, and tbu40
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-24 09:35:21 +01:00
Paolo Bonzini
a14f0bf165 docs: convert build system documentation to rST
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:45 -04:00
Paolo Bonzini
77d27b9271 meson: update build-system documentation
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:45 -04:00
Paolo Bonzini
484e2cc730 rules.mak: drop unneeded macros
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:42 -04:00
Paolo Bonzini
acfdaac577 meson: build texi doc
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:42 -04:00
Paolo Bonzini
bac35bf517 docs: automatically track manual dependencies
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:41 -04:00
Paolo Bonzini
f8aa24ea9a meson: sphinx-build
For now, sphinx is run on every invocation of make.  The previous mechanism
using $(wildcard) is not reproducible in Meson and was also brittle; for
example some .rst.inc files were left out.  The next patch will introduce
a Sphinx extension to emit a depfile.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:41 -04:00
Paolo Bonzini
64ed6f92ff meson: link emulators without Makefile.target
The binaries move to the root directory, e.g. qemu-system-i386 or
qemu-arm.  This requires changes to qtests, CI, etc.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:40 -04:00
Paolo Bonzini
a81df1b68b libqemuutil, qapi, trace: convert to meson
This shows how to do some "computations" in meson.build using its array
and dictionary data structures, and also a basic usage of the sourceset
module for conditional compilation.

Notice the new "if have_system" part of util/meson.build, which fixes
a bug in the old build system was buggy: util/dbus.c was built even for
non-softmmu builds, but the dependency on -lgio was lost when the linking
was done through libqemuutil.a.  Because all of its users required gio
otherwise, the bug was hidden.  Meson instead propagates libqemuutil's
dependencies down to its users, and shows the problem.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:08 -04:00
Marc-André Lureau
bf0e56a3ca meson: use coverage option
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-08-21 06:30:07 -04:00
Greg Kurz
c55bcb1f47 spapr: Clarify error and documentation for broken KVM XICS
When starting an L2 KVM guest with `ic-mode=dual,kernel-irqchip=on`,
QEMU fails with:

KVM is too old to support ic-mode=dual,kernel-irqchip=on

This error message was introduced to detect older KVM versions that
didn't allow destruction and re-creation of the XICS KVM device that
we do at reboot. But it is actually the same issue that we get with
nested guests : when running under pseries, KVM currently provides
a genuine XICS device (not the XICS-on-XIVE device that we get
under powernv) which doesn't support destruction/re-creation.

This will eventually be fixed in KVM but in the meantime, update
the error message and documentation to mention the nested case.
While here, mention that in "No XIVE support in KVM" section that
this can also happen with "guest OSes supporting XIVE" since
we check this at init time before starting the guest.

Reported-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Buglink: https://bugs.launchpad.net/qemu/+bug/1890290
Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <159664243614.622889.18307368735989783528.stgit@bahia.lan>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-08-12 13:16:27 +10:00
Cédric Le Goater
8d14523b1c docs: Update POWER9 XIVE support for nested guests
It is not yet supported.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20200804131639.407049-1-clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-08-12 13:16:27 +10:00
Daniel Henrique Barboza
61f5e1a34d docs: adding NUMA documentation for pseries
This patch adds a new documentation file, ppc-spapr-numa.rst,
informing what developers and user can expect of the NUMA distance
support for the pseries machine, up to QEMU 5.1.

In the (hopefully soon) future, when we rework the NUMA mechanics
of the pseries machine to at least attempt to contemplate user
choice, this doc will be extended to inform about the new
support.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Message-Id: <20200803133440.825276-1-danielhb413@gmail.com>
Tested-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2020-08-12 13:16:27 +10:00
Richard Henderson
ffdfca6fac docs/devel: Document decodetree no-overlap groups
When support for this feature went in, the update to the
documentation was forgotten.

Fixes: 067e8b0f45
Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20200803205708.315829-1-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-08-04 16:33:47 +01:00
Andrea Bolognani
f7160f3218 schemas: Add vim modeline
The various schemas included in QEMU use a JSON-based format which
is, however, strictly speaking not valid JSON.

As a consequence, when vim tries to apply syntax highlight rules
for JSON (as guessed from the file name), the result is an unreadable
mess which mostly consist of red markers pointing out supposed errors
in, well, pretty much everything.

Using Python syntax highlighting produces much better results, and
in fact these files already start with specially-formatted comments
that instruct Emacs to process them as if they were Python files.

This commit adds the equivalent special comments for vim.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Message-Id: <20200729185024.121766-1-abologna@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2020-08-03 08:28:08 +02:00
Peter Maydell
3461487523 target-arm queue:
* ACPI: Assert that we don't run out of the preallocated memory
  * hw/misc/aspeed_sdmc: Fix incorrect memory size
  * target/arm: Always pass cacheattr in S1_ptw_translate
  * docs/system/arm/virt: Document 'mte' machine option
  * hw/arm/boot: Fix PAUTH, MTE for EL3 direct kernel boot
  * target/arm: Improve IMPDEF algorithm for IRG
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 =s8n/
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20200727' into staging

target-arm queue:
 * ACPI: Assert that we don't run out of the preallocated memory
 * hw/misc/aspeed_sdmc: Fix incorrect memory size
 * target/arm: Always pass cacheattr in S1_ptw_translate
 * docs/system/arm/virt: Document 'mte' machine option
 * hw/arm/boot: Fix PAUTH, MTE for EL3 direct kernel boot
 * target/arm: Improve IMPDEF algorithm for IRG

# gpg: Signature made Mon 27 Jul 2020 16:18:38 BST
# gpg:                using RSA key E1A5C593CD419DE28E8315CF3C2525ED14360CDE
# gpg:                issuer "peter.maydell@linaro.org"
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>" [ultimate]
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>" [ultimate]
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20200727:
  target/arm: Improve IMPDEF algorithm for IRG
  hw/arm/boot: Fix MTE for EL3 direct kernel boot
  hw/arm/boot: Fix PAUTH for EL3 direct kernel boot
  docs/system/arm/virt: Document 'mte' machine option
  target/arm: Always pass cacheattr in S1_ptw_translate
  hw/misc/aspeed_sdmc: Fix incorrect memory size
  ACPI: Assert that we don't run out of the preallocated memory

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-28 18:43:48 +01:00
Andrey Shinkevich
8098969cf2 qcow2: Fix capitalization of header extension constant.
Make the capitalization of the hexadecimal numbers consistent for the
QCOW2 header extension constants in docs/interop/qcow2.txt.

Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andrey Shinkevich <andrey.shinkevich@virtuozzo.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <1594973699-781898-2-git-send-email-andrey.shinkevich@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2020-07-27 15:39:58 -05:00
Peter Maydell
222f45b759 docs/system/arm/virt: Document 'mte' machine option
Commit 6a0b7505f1 which added documentation of the virt board
crossed in the post with commit 6f4e1405b9 which added a new
'mte' machine option. Update the docs to include the new option.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
2020-07-27 16:12:10 +01:00
Alexander Bulekov
09a14f586c docs/fuzz: add instructions for generating a coverage report
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20200706195534.14962-5-alxndr@bu.edu>
[thuth: Replaced --enable-sanitizers with --enable-fuzzing]
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-07-21 07:29:18 +02:00
Alexander Bulekov
19a91e4af8 docs/fuzz: add information about useful libFuzzer flags
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20200706195534.14962-4-alxndr@bu.edu>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-07-21 07:27:28 +02:00
Alexander Bulekov
ee16da12d7 docs/fuzz: describe building fuzzers with enable-sanitizers
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20200706195534.14962-3-alxndr@bu.edu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-07-21 07:27:28 +02:00
Peter Maydell
6a0b7505f1 docs/system: Document the arm virt board
Document the arm 'virt' board, which has been undocumented
for far too long given that it is the main recommended board
type for arm guests.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200713175746.5936-5-peter.maydell@linaro.org
2020-07-20 11:35:17 +01:00
Peter Maydell
bb309000c8 docs/system: Briefly document gumstix boards
Add skeletal documentation of the gumstix boards
('connex' and 'verdex').

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200713175746.5936-4-peter.maydell@linaro.org
2020-07-20 11:35:17 +01:00
Peter Maydell
b76b60f59b docs/system: Briefly document collie board
Add skeletal documentation of the collie board.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200713175746.5936-3-peter.maydell@linaro.org
2020-07-20 11:35:17 +01:00
Peter Maydell
2d21dd17c5 docs/system: Briefly document canon-a1100 board
Add skeletal documentation of the canon-a1100 board.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-id: 20200713175746.5936-2-peter.maydell@linaro.org
2020-07-20 11:35:17 +01:00
Peter Maydell
97f750beca Fix typo in newly added documentation.
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20200717' into staging

Fix typo in newly added documentation.

# gpg: Signature made Fri 17 Jul 2020 14:54:20 BST
# gpg:                using RSA key C3D0D66DC3624FF6A8C018CEDECF6B93C6F02FAF
# gpg:                issuer "cohuck@redhat.com"
# gpg: Good signature from "Cornelia Huck <conny@cornelia-huck.de>" [marginal]
# gpg:                 aka "Cornelia Huck <huckc@linux.vnet.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cornelia.huck@de.ibm.com>" [full]
# gpg:                 aka "Cornelia Huck <cohuck@kernel.org>" [marginal]
# gpg:                 aka "Cornelia Huck <cohuck@redhat.com>" [marginal]
# Primary key fingerprint: C3D0 D66D C362 4FF6 A8C0  18CE DECF 6B93 C6F0 2FAF

* remotes/cohuck/tags/s390x-20200717:
  docs/s390x: fix vfio-ccw type

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-18 17:27:34 +01:00
Marc-André Lureau
a08464521c Remove VXHS block device
The vxhs code doesn't compile since v2.12.0. There's no point in fixing
and then adding CI for a config that our users have demonstrated that
they do not use; better to just remove it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200711065926.2204721-1-marcandre.lureau@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-07-17 14:20:57 +02:00
Cornelia Huck
9ece07d7a3 docs/s390x: fix vfio-ccw type
Fix the type name in the mdevctl example.

Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Message-Id: <20200716145031.771476-1-cohuck@redhat.com>
2020-07-17 12:56:22 +02:00
Peter Maydell
dfcade7cef Final fixes for 5.1-rc0
- minor documentation nit
   - docker.py bootstrap fixes
   - tweak containers.yml wildcards
   - fix float16 nan detection
   - conditional use of -Wpsabi
   - fix missing iotlb data for plugins
   - proper locking for helper based bb count
   - drop ppc64abi32 from the plugin check-tcg test
 -----BEGIN PGP SIGNATURE-----
 
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-misc-for-rc0-150720-3' into staging

Final fixes for 5.1-rc0

  - minor documentation nit
  - docker.py bootstrap fixes
  - tweak containers.yml wildcards
  - fix float16 nan detection
  - conditional use of -Wpsabi
  - fix missing iotlb data for plugins
  - proper locking for helper based bb count
  - drop ppc64abi32 from the plugin check-tcg test

# gpg: Signature made Wed 15 Jul 2020 11:59:08 BST
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-misc-for-rc0-150720-3:
  .travis.yml: skip ppc64abi32-linux-user with plugins
  plugins: expand the bb plugin to be thread safe and track per-cpu
  cputlb: ensure we save the IOTLB data in case of reset
  tests/plugins: don't unconditionally add -Wpsabi
  fpu/softfloat: fix up float16 nan recognition
  gitlab-ci/containers: Add missing wildcard where we should look for changes
  docker.py: fix fetching of FROM layers
  tests/docker: Remove the libssh workaround from the ubuntu 20.04 image
  docs/devel: fix grammar in multi-thread-tcg

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-15 17:16:39 +01:00
Alex Bennée
93154e767f docs/devel: fix grammar in multi-thread-tcg
Review comment came just too late ;-)

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200713200415.26214-9-alex.bennee@linaro.org>
2020-07-15 11:52:39 +01:00
Peter Maydell
3a9163af4e Fix CVE-2020-13253
By using invalidated address, guest can do out-of-bounds accesses.
 These patches fix the issue by only allowing SD card image sizes
 power of 2, and not switching to SEND_DATA state when the address
 is invalid (out of range).
 
 This issue was found using QEMU fuzzing mode (using --enable-fuzzing,
 see docs/devel/fuzzing.txt) and reported by Alexander Bulekov.
 
 Reproducer:
   https://bugs.launchpad.net/qemu/+bug/1880822/comments/1
 
 CI jobs results:
 . https://cirrus-ci.com/build/5157142548185088
 . https://gitlab.com/philmd/qemu/-/pipelines/166381731
 . https://travis-ci.org/github/philmd/qemu/builds/707956535
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 =VZsF
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/philmd-gitlab/tags/sdcard-CVE-2020-13253-pull-request' into staging

Fix CVE-2020-13253

By using invalidated address, guest can do out-of-bounds accesses.
These patches fix the issue by only allowing SD card image sizes
power of 2, and not switching to SEND_DATA state when the address
is invalid (out of range).

This issue was found using QEMU fuzzing mode (using --enable-fuzzing,
see docs/devel/fuzzing.txt) and reported by Alexander Bulekov.

Reproducer:
  https://bugs.launchpad.net/qemu/+bug/1880822/comments/1

CI jobs results:
. https://cirrus-ci.com/build/5157142548185088
. https://gitlab.com/philmd/qemu/-/pipelines/166381731
. https://travis-ci.org/github/philmd/qemu/builds/707956535

# gpg: Signature made Tue 14 Jul 2020 14:54:44 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/sdcard-CVE-2020-13253-pull-request:
  hw/sd/sdcard: Do not switch to ReceivingData if address is invalid
  hw/sd/sdcard: Update coding style to make checkpatch.pl happy
  hw/sd/sdcard: Do not allow invalid SD card sizes
  hw/sd/sdcard: Simplify realize() a bit
  hw/sd/sdcard: Restrict Class 6 commands to SCSD cards
  tests/acceptance/boot_linux: Expand SD card image to power of 2
  tests/acceptance/boot_linux: Tag tests using a SD card with 'device:sd'
  docs/orangepi: Add instructions for resizing SD image to power of two
  MAINTAINERS: Cc qemu-block mailing list

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-15 09:06:55 +01:00
Niek Linnenbank
1c2329b5d6 docs/orangepi: Add instructions for resizing SD image to power of two
SD cards need to have a size of a power of two.
Update the Orange Pi machine documentation to include
instructions for resizing downloaded images using the
qemu-img command.

Signed-off-by: Niek Linnenbank <nieklinnenbank@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200712183708.15450-1-nieklinnenbank@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-07-14 15:38:22 +02:00
Eric Blake
d9f059aa6c qemu-img: Deprecate use of -b without -F
Creating an image that requires format probing of the backing image is
potentially unsafe (we've had several CVEs over the years based on
probes leaking information to the guest on a subsequent boot, although
these days tools like libvirt are aware of the issue enough to prevent
the worst effects).  For example, if our probing algorithm ever
changes, or if other tools like libvirt determine a different probe
result than we do, then subsequent use of that backing file under a
different format will present corrupted data to the guest.
Fortunately, the worst effects occur only when the backing image is
originally raw, and we at least prevent commit into a probed raw
backing file that would change its probed type.

Still, it is worth starting a deprecation clock so that future
qemu-img can refuse to create backing chains that would rely on
probing, to encourage clients to avoid unsafe practices.  Most
warnings are intentionally emitted from bdrv_img_create() in the block
layer, but qemu-img convert uses bdrv_create() which cannot emit its
own warning without causing spurious warnings on other code paths.  In
the end, all command-line image creation or backing file rewriting now
performs a check.

Furthermore, if we probe a backing file as non-raw, then it is safe to
explicitly record that result (rather than relying on future probes);
only where we probe a raw image do we care about further warnings to
the user when using such an image (for example, commits into a
probed-raw backing file are prevented), to help them improve their
tooling.  But whether or not we make the probe results explicit, we
still warn the user to remind them to upgrade their workflow to supply
-F always.

iotest 114 specifically wants to create an unsafe image for later
amendment rather than defaulting to our new default of recording a
probed format, so it needs an update.  While touching it, expand it to
cover all of the various warnings enabled by this patch.  iotest 301
also shows a change to qcow messages.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200706203954.341758-11-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-07-14 15:24:05 +02:00
Eric Blake
bc5ee6da71 qcow2: Deprecate use of qemu-img amend to change backing file
The use of 'qemu-img amend' to change qcow2 backing files is not
tested very well.  In particular, our implementation has a bug where
if a new backing file is provided without a format, then the prior
format is blindly reused, even if this results in data corruption, but
this is not caught by iotests.

There are also situations where amending other options needs access to
the original backing file (for example, on a downgrade to a v2 image,
knowing whether a v3 zero cluster must be allocated or may be left
unallocated depends on knowing whether the backing file already reads
as zero), but the command line does not have a nice way to tell us
both the backing file to use for opening the image as well as the
backing file to install after the operation is complete.

Even if we do allow changing the backing file, it is redundant with
the existing ability to change backing files via 'qemu-img rebase -u'.
It is time to deprecate this support (leaving the existing behavior
intact, even if it is buggy), and at a point in the future, require
the use of only 'qemu-img rebase' for adjusting backing chain
relations, saving 'qemu-img amend' for changes unrelated to the
backing chain.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200706203954.341758-8-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-07-14 15:18:59 +02:00
Eric Blake
add8200dd1 block: Error if backing file fails during creation without -u
Back in commit 6e6e55f5 (Jul 2017, v2.10), we tweaked the code to warn
if the backing file could not be opened but the user gave a size,
unless the user also passes the -u option to bypass the open of the
backing file.  As one common reason for failure to open the backing
file is when there is mismatch in the requested backing format in
relation to what the backing file actually contains, we actually want
to open the backing file and ensure that it has the right format in as
many cases as possible.  iotest 301 for qcow demonstrates how
detecting explicit format mismatch is useful to prevent the creation
of an image that would probe differently than the user requested.  Now
is the time to finally turn the warning an error, as promised.

Note that the original warning was added prior to our documentation of
an official deprecation policy (eb22aeca, also Jul 2017), and because
the warning didn't mention the word "deprecated", we never actually
remembered to document it as such.  But the warning has been around
long enough that I don't see prolonging it another two releases.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200706203954.341758-7-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-07-14 15:18:59 +02:00
Eric Blake
25956af3fe block: Finish deprecation of 'qemu-img convert -n -o'
It's been two releases since we started warning; time to make the
combination an error as promised.  There was no iotest coverage, so
add some.

While touching the documentation, tweak another section heading for
consistent style.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200706203954.341758-3-eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2020-07-14 15:18:59 +02:00
Peter Maydell
20c1df5476 bugfixes for audio, usb, ui and docs.
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Merge remote-tracking branch 'remotes/kraxel/tags/fixes-20200713-pull-request' into staging

bugfixes for audio, usb, ui and docs.

# gpg: Signature made Mon 13 Jul 2020 15:10:35 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/fixes-20200713-pull-request:
  usb: fix usb-host build on windows.
  ui: fix vc_chr_write call in text_console_do_init
  docs/qdev-device-use: Clean up the sentences related to -usbdevice
  ossaudio: fix out of bounds write

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-13 16:58:44 +01:00
Thomas Huth
2a84f48c2b docs/system/s390x: Improve the 3270 documentation
There is some additional information about the 3270 support in our Wiki
at https://wiki.qemu.org/Features/3270 - so let's include this information
into the main documentation now to have one single source of information
(the Wiki page could later be removed).

While at it, I also shortened the lines of the first example a little bit.
Otherwise they showed up with a horizontal scrollbar in my Firefox browser.

Message-Id: <20200713075112.442-1-thuth@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2020-07-13 11:40:52 +02:00
Thomas Huth
590246ead7 docs/devel/fuzzing: Fix bugs in documentation
Fix typo - the option is called "--fuzz-target" and not "--fuzz_taget".
Also use a different fuzzer in the example, since "virtio-net-fork-fuzz"
does not seem to be a valid fuzzer target (anymore?).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20200709084059.22539-1-thuth@redhat.com>
2020-07-13 11:40:52 +02:00
Thomas Huth
480324ec8d docs/qdev-device-use: Clean up the sentences related to -usbdevice
Most of the -usbdevice paramaters have been removed already. Update
the doc accordingly.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 20200710065520.24784-1-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-07-13 11:40:47 +02:00
Peter Maydell
9f526fce49 Testing and misc build updates:
- tests/vm support for aarch64 VMs
   - tests/tcg better cross-compiler detection
   - update docker tooling to support registries
   - update docker support for xtensa
   - gitlab build docker images and store in registry
   - gitlab use docker images for builds
   - a number of skipIf updates to support move
   - linux-user MAP_FIXED_NOREPLACE fix
   - qht-bench compiler tweaks
   - configure fix for secret keyring
   - tsan fiber annotation clean-up
   - doc updates for mttcg/icount/gdbstub
   - fix cirrus to use brew bash for iotests
   - revert virtio-gpu breakage
   - fix LC_ALL to avoid sorting changes in iotests
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Merge remote-tracking branch 'remotes/stsquad/tags/pull-testing-and-misc-110720-2' into staging

Testing and misc build updates:

  - tests/vm support for aarch64 VMs
  - tests/tcg better cross-compiler detection
  - update docker tooling to support registries
  - update docker support for xtensa
  - gitlab build docker images and store in registry
  - gitlab use docker images for builds
  - a number of skipIf updates to support move
  - linux-user MAP_FIXED_NOREPLACE fix
  - qht-bench compiler tweaks
  - configure fix for secret keyring
  - tsan fiber annotation clean-up
  - doc updates for mttcg/icount/gdbstub
  - fix cirrus to use brew bash for iotests
  - revert virtio-gpu breakage
  - fix LC_ALL to avoid sorting changes in iotests

# gpg: Signature made Sat 11 Jul 2020 15:56:42 BST
# gpg:                using RSA key 6685AE99E75167BCAFC8DF35FBD0DB095A9E2A44
# gpg: Good signature from "Alex Bennée (Master Work Key) <alex.bennee@linaro.org>" [full]
# Primary key fingerprint: 6685 AE99 E751 67BC AFC8  DF35 FBD0 DB09 5A9E 2A44

* remotes/stsquad/tags/pull-testing-and-misc-110720-2: (50 commits)
  iotests: Set LC_ALL=C for sort
  Revert "vga: build virtio-gpu as module"
  tests: fix "make check-qtest" for modular builds
  .cirrus.yml: add bash to the brew packages
  tests/docker: update toolchain set in debian-xtensa-cross
  tests/docker: fall back more gracefully when pull fails
  docs: Add to gdbstub documentation the PhyMemMode
  docs/devel: add some notes on tcg-icount for developers
  docs/devel: convert and update MTTCG design document
  tests/qht-bench: Adjust threshold computation
  tests/qht-bench: Adjust testing rate by -1
  travis.yml: Test also the other targets on s390x
  shippable: pull images from registry instead of building
  testing: add check-build target
  containers.yml: build with docker.py tooling
  gitlab: limit re-builds of the containers
  tests: improve performance of device-introspect-test
  gitlab: add avocado asset caching
  gitlab: enable check-tcg for linux-user tests
  linux-user/elfload: use MAP_FIXED_NOREPLACE in pgb_reserved_va
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-12 15:32:05 +01:00
Jon Doron
5067946775 docs: Add to gdbstub documentation the PhyMemMode
The PhyMemMode gdb extension command was missing from the gdb.rst
document.

Signed-off-by: Jon Doron <arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20200601171609.1665397-1-arilou@gmail.com>
Message-Id: <20200709141327.14631-4-alex.bennee@linaro.org>
2020-07-11 15:53:00 +01:00
Alex Bennée
4d7fe02be3 docs/devel: add some notes on tcg-icount for developers
This attempts to bring together my understanding of the requirements
for icount behaviour into one reference document for our developer
notes.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Pavel Dovgalyuk <dovgaluk@ispras.ru>
Cc: Peter Maydell <peter.maydell@linaro.org>
Message-Id: <20200709141327.14631-3-alex.bennee@linaro.org>
2020-07-11 15:53:00 +01:00
Alex Bennée
c8c06e520d docs/devel: convert and update MTTCG design document
Do a light conversion to .rst and clean-up some of the language at the
start now MTTCG has been merged for a while.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20200709141327.14631-2-alex.bennee@linaro.org>
2020-07-11 15:53:00 +01:00
Thomas Huth
c0a659f9de target/avr: Add section into QEMU documentation
The new section explains basic ways of using AVR target in QEMU.

Signed-off-by: Michael Rolnik <mrolnik@gmail.com>
[thuth: Converted doc from texi to Sphinx syntax]
Signed-off-by: Thomas Huth <huth@tuxfamily.org>
Message-Id: <20200705140315.260514-31-huth@tuxfamily.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2020-07-11 11:02:05 +02:00
Markus Armbruster
cdd2b228b9 qapi: Smooth visitor error checking in generated code
Use visitor functions' return values to check for failure.  Eliminate
error_propagate() that are now unnecessary.  Delete @err that are now
unused.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200707160613.848843-41-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Markus Armbruster
012d4c96e2 qapi: Make visitor functions taking Error ** return bool, not void
See recent commit "error: Document Error API usage rules" for
rationale.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20200707160613.848843-18-armbru@redhat.com>
2020-07-10 15:18:08 +02:00
Peter Maydell
aecdfcc3f8 firmware (and crypto) patches
- add the tls-cipher-suites object,
 - add the ability to QOM objects to produce data consumable
   by the fw_cfg device,
 - let the tls-cipher-suites object implement the
   FW_CFG_DATA_GENERATOR interface.
 
 This is required by EDK2 'HTTPS Boot' feature of OVMF to tell
 the guest which TLS ciphers it can use.
 
 CI jobs results:
   https://travis-ci.org/github/philmd/qemu/builds/704724619
   https://gitlab.com/philmd/qemu/-/pipelines/162938106
   https://cirrus-ci.com/build/4682977303068672
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/philmd-gitlab/tags/fw_cfg-20200704' into staging

firmware (and crypto) patches

- add the tls-cipher-suites object,
- add the ability to QOM objects to produce data consumable
  by the fw_cfg device,
- let the tls-cipher-suites object implement the
  FW_CFG_DATA_GENERATOR interface.

This is required by EDK2 'HTTPS Boot' feature of OVMF to tell
the guest which TLS ciphers it can use.

CI jobs results:
  https://travis-ci.org/github/philmd/qemu/builds/704724619
  https://gitlab.com/philmd/qemu/-/pipelines/162938106
  https://cirrus-ci.com/build/4682977303068672

# gpg: Signature made Sat 04 Jul 2020 17:37:08 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd-gitlab/tags/fw_cfg-20200704:
  crypto/tls-cipher-suites: Produce fw_cfg consumable blob
  softmmu/vl: Allow -fw_cfg 'gen_id' option to use the 'etc/' namespace
  softmmu/vl: Let -fw_cfg option take a 'gen_id' argument
  hw/nvram/fw_cfg: Add the FW_CFG_DATA_GENERATOR interface
  crypto: Add tls-cipher-suites object

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2020-07-09 20:01:43 +01:00