The maximal number of virtqueues per device can be limited on a per
transport basis. For virtio-ccw this limit is defined by
VIRTIO_CCW_QUEUE_MAX, however the limitation used to come form the
number of adapter routes supported by flic (via notifiers).
Recently the limitation of the flic was adjusted so that it can
accommodate VIRTIO_QUEUE_MAX queues, and is in the meanwhile checked for
separately too.
Let us remove the transport specific limitation of virtio-ccw by
dropping VIRTIO_CCW_QUEUE_MAX and using VIRTIO_QUEUE_MAX instead.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Let's increase ADAPTER_ROUTES_MAX_GSI to VIRTIO_QUEUE_MAX which is the
largest demand foreseeable at the moment. Let us add a compatibility
macro for the previous machines so client code can maintain backwards
migration compatibility
To not mess up migration compatibility for virtio-ccw
VIRTIO_CCW_QUEUE_MAX is left at it's current value, and will be dropped
when virtio-ccw is converted to use the capability of the flic
introduced by this patch.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Currently VIRTIO_CCW_QUEUE_MAX is defined as ADAPTER_ROUTES_MAX_GSI.
That is when checking queue max we implicitly check the constraint
concerning the number of adapter routes. This won't be satisfactory any
more (due to backward migration considerations) if ADAPTER_ROUTES_MAX_GSI
changes (ADAPTER_ROUTES_MAX_GSI is going to change because we want to
support up to VIRTIO_QUEUE_MAX queues per virtio-ccw device).
Let us introduce a check on a recently introduce flic property which
gives us the compatibility machine aware limit on adapter routes.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
To make virtio-ccw supports more that 64 virtqueues we will have to
increase ADAPTER_ROUTES_MAX_GSI which is currently limiting the number if
possible adapter routes. Of course increasing the number of supported
routes can break backwards migration.
Let us introduce a compatibility property adapter_routes_max_batch so
client code can use the some old limit if in compatibility mode and
retain the migration compatibility.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
We cannot support more than 64 virtqueues with the 64 bits provided by
classic indicators. If a driver tries to setup classic indicators
(which it is free to do even for virtio-1 devices) for a device with
more than 64 virtqueues, we should reject the attempt so that the
driver does not end up with an unusable device.
This is in preparation for bumping the number of supported virtqueues
on the ccw transport.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Wire up virtio-crypto for the CCW based VIRTIO.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
As a preparation for wiring-up virtio-crypto, the first non-transitional
virtio device on the ccw transport, let us introduce a mechanism for
disabling revision 0. This is more or less equivalent with disabling
legacy as revision 0 is legacy only, and legacy drivers use the revision
0 exclusively.
Signed-off-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Current code puts a 'FLIC_FAILED' marker into the migration stream
to indicate something went wrong while saving flic state and fails
load if it encounters that marker. VMState's put routine recently
gained the ability to return error codes (but did not wire it up
yet).
In order to be able to reap the benefits of returning an error and
failing migration on the source already once this gets wired up
in core, return an error in addition to storing 'FLIC_FAILED'.
Suggested-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com>
Sometimes (e.g. early boot) a guest is broken in such ways that it loops
100% delivering operation exceptions (illegal operation) but the pgm new
PSW is not set properly. This will result in code being read from
address zero, which usually contains another illegal op. Let's detect
this case and put the guest in crashed state. Instead of only detecting
this for address zero apply a heuristic that will work for any program
check new psw so that it will also reach the crashed state if you
provide some random elf file to the -kernel option.
We do not want guest problem state to be able to trigger a guest panic,
e.g. by faulting on an address that is the same as the program check
new PSW, so we check for the problem state bit being off.
With this we
a: get rid of CPU consumption of such broken guests
b: keep the program old PSW. This allows to find out the original illegal
operation - making debugging such early boot issues much easier than
with single stepping
This relies on the kernel using a similar heuristic and passing such
operation exceptions to user space.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
The DPRINTF approach is likely to introduce bitrot, and the preferred
way for debugging is tracing anyway. Fortunately, there are no users
(left), so nuke it.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Halil Pasic <pasic@linux.vnet.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Python is no longer installed implicitly, but the QEMU build system
requires it. List it in PACKAGES.
Reported-by: Auger Eric <eric.auger@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170222021801.28658-1-famz@redhat.com>
Tested-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
The docker framework is really just another piece in the build
automation puzzle so lets merge it together. For added bonus I've also
included the Travis and Patchew status links. The Shippable links will
be added later once mainline tests have been configured and setup.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170220105139.21581-5-alex.bennee@linaro.org>
Signed-off-by: Fam Zheng <famz@redhat.com>
Ostensibly Shippable offers a similar set of services as Travis.
However they are focused on Docker container based work-flows so we
can use our existing containers to run a few extra builds - in this
case a bunch of cross-compiled targets on a Debian multiarch system.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Message-Id: <20170220105139.21581-4-alex.bennee@linaro.org>
Signed-off-by: Fam Zheng <famz@redhat.com>
This provides a basic Debian install with access to the emdebian cross
compilers. The debian-armhf-cross and debian-arm64-cross targets build
on the basic Debian image to allow cross compiling to those targets.
A new environment variable (QEMU_CONFIGURE_OPTS) is set as part of the
docker container and passed to the build to specify the
--cross-prefix. The user still calls the build in the usual way, for
example:
make docker-test-build@debian-arm64-cross \
TARGET_LIST="aarch64-softmmu,aarch64-linux-user"
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170220105139.21581-3-alex.bennee@linaro.org>
Signed-off-by: Fam Zheng <famz@redhat.com>
Currently all docker builds are done by exporting a tarball to the
docker container and running the build as the containers root user.
Other use cases are possible however and it is possible to map a part
of users file-system to the container. This is useful for example for
doing cross-builds of arbitrary source trees. For this to work
smoothly the container needs to have a user created that maps cleanly
to the host system.
This adds a -u option to the docker script so that:
DEB_ARCH=armhf DEB_TYPE=stable ./tests/docker/docker.py build \
-u --include-executable=arm-linux-user/qemu-arm \
debian:armhf ./tests/docker/dockerfiles/debian-bootstrap.docker
Will build a container that can then be run like:
docker run --rm -it -v /home/alex/lsrc/qemu/risu.git/:/src \
--user=alex:alex -w /src/ debian:armhf \
sh -c "make clean && ./configure -s && make"
All docker containers built will add the current user unless
explicitly disabled by specifying NOUSER when invoking the Makefile:
make docker-image-debian-armhf-cross NOUSER=1
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Fam Zheng <famz@redhat.com>
Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20170220105139.21581-2-alex.bennee@linaro.org>
Signed-off-by: Fam Zheng <famz@redhat.com>
parse_option_size()'s checking for overflow and trailing crap is
wrong. Has always been that way. qemu_strtosz() gets it right, so
use that.
This adds support for size suffixes 'P', 'E', and ignores case for all
suffixes, not just 'k'.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-25-git-send-email-armbru@redhat.com>
This will permit its use in parse_option_size().
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com> (maintainer:X86)
Cc: Kevin Wolf <kwolf@redhat.com> (supporter:Block layer core)
Cc: Max Reitz <mreitz@redhat.com> (supporter:Block layer core)
Cc: qemu-block@nongnu.org (open list:Block layer core)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1487708048-2131-24-git-send-email-armbru@redhat.com>
This makes qemu_strtosz(), qemu_strtosz_mebi() and
qemu_strtosz_metric() similar to qemu_strtoi64(), except negative
values are rejected.
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com> (maintainer:X86)
Cc: Kevin Wolf <kwolf@redhat.com> (supporter:Block layer core)
Cc: Max Reitz <mreitz@redhat.com> (supporter:Block layer core)
Cc: qemu-block@nongnu.org (open list:Block layer core)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1487708048-2131-23-git-send-email-armbru@redhat.com>
Change the qemu_strtosz() & friends to return -EINVAL when @endptr is
null and the conversion doesn't consume the string completely.
Matches how qemu_strtol() & friends work.
Only test_qemu_strtosz_simple() passes a null @endptr. No functional
change there, because its conversion consumes the string.
Simplify callers that use @endptr only to fail when it doesn't point
to '\0' to pass a null @endptr instead.
Cc: Dr. David Alan Gilbert <dgilbert@redhat.com>
Cc: Eduardo Habkost <ehabkost@redhat.com> (maintainer:X86)
Cc: Kevin Wolf <kwolf@redhat.com> (supporter:Block layer core)
Cc: Max Reitz <mreitz@redhat.com> (supporter:Block layer core)
Cc: qemu-block@nongnu.org (open list:Block layer core)
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <1487708048-2131-22-git-send-email-armbru@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Cc: qemu-block@nongnu.org
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-21-git-send-email-armbru@redhat.com>
Leave testing unit suffixes to test_qemu_strtosz_units().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-20-git-send-email-armbru@redhat.com>
Use qemu_strtosz() instead of qemu_strtosz_MiB() where it doesn't
really make a difference.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-19-git-send-email-armbru@redhat.com>
Writing QEMU_STRTOSZ_DEFSUFFIX_* instead of '*' gains nothing. Get
rid of these eyesores.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1487708048-2131-18-git-send-email-armbru@redhat.com>
Most callers of qemu_strtosz_suffix() pass QEMU_STRTOSZ_DEFSUFFIX_B.
Capture the pattern in new qemu_strtosz().
Inline qemu_strtosz_suffix() into its only remaining caller.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-17-git-send-email-armbru@redhat.com>
With qemu_strtosz(), no suffix means mebibytes. It's used rarely.
I'm going to add a similar function where no suffix means bytes.
Rename qemu_strtosz() to qemu_strtosz_MiB() to make the name
qemu_strtosz() available for the new function.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-16-git-send-email-armbru@redhat.com>
To parse numbers with metric suffixes, we use
qemu_strtosz_suffix_unit(nptr, &eptr, QEMU_STRTOSZ_DEFSUFFIX_B, 1000)
Capture this in a new function for legibility:
qemu_strtosz_metric(nptr, &eptr)
Replace test_qemu_strtosz_suffix_unit() by test_qemu_strtosz_metric().
Rename qemu_strtosz_suffix_unit() to do_strtosz() and give it internal
linkage.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-15-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-14-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-13-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-12-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1487708048-2131-11-git-send-email-armbru@redhat.com>
parse_option_number() fails to check for these errors after
strtoull(). Has always been broken. Fix that.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-10-git-send-email-armbru@redhat.com>
Reorder check_strtox_error() to make it obvious that we always store
through a non-null @endptr.
Transform
if (some error) {
error case ...
err = value for error case;
} else {
normal case ...
err = value for normal case;
}
return err;
to
if (some error) {
error case ...
return value for error case;
}
normal case ...
return value for normal case;
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-9-git-send-email-armbru@redhat.com>
Name same things the same, different things differently.
* qemu_strtol()'s parameter @nptr is called @p in
check_strtox_error(). Rename the latter.
* qemu_strtol()'s parameter @endptr is called @next in
check_strtox_error(). Rename the latter.
* qemu_strtol()'s variable @p is called @endptr in
check_strtox_error(). Rename both to @ep.
* qemu_strtol()'s variable @err is *negative* errno,
check_strtox_error()'s parameter @err is *positive*. Rename the
latter to @libc_errno.
Same for qemu_strtoul(), qemu_strtoi64(), qemu_strtou64(), of course.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-8-git-send-email-armbru@redhat.com>
The name qemu_strtoll() suggests conversion to long long, but it
actually converts to int64_t. Rename to qemu_strtoi64().
The name qemu_strtoull() suggests conversion to unsigned long long,
but it actually converts to uint64_t. Rename to qemu_strtou64().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1487708048-2131-7-git-send-email-armbru@redhat.com>
Fixes the following documentation bugs:
* Fails to document that null @nptr is safe.
* Fails to document that we return -EINVAL when no conversion could be
performed (commit 47d4be1).
* Confuses long long with int64_t, and unsigned long long with
uint64_t.
* Claims the unsigned conversions can underflow. They can't.
While there, mark problematic assumptions that int64_t is long long,
and uint64_t is unsigned long long with FIXME comments.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1487708048-2131-6-git-send-email-armbru@redhat.com>
Use unsigned comparisons to check the result of qemu_strtoul() and
strtoull().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-5-git-send-email-armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <1487708048-2131-4-git-send-email-armbru@redhat.com>
Plenty of code relies on QemuOpt member @str not being null, including
qemu_opts_print(), qemu_opts_to_qdict(), and callbacks passed to
qemu_opt_foreach().
Begs the question whether it can be null. Only opt_set() creates
QemuOpt. It sets member @str to its argument @value. Passing null
for @value would plant a time bomb. Callers:
* opts_do_parse() can't pass null.
* qemu_opt_set() passes its argument @value. Callers:
- qemu_opts_from_qdict_1() can't pass null
- qemu_opts_set() passes its argument @value, but none of its
callers pass null.
- Many more outside qemu-option.c, but they shouldn't pass null,
either.
Assert member @str isn't null, so that misuse is caught right away.
Simplify parse_option_bool(), parse_option_number() and
parse_option_size() accordingly. Best viewed with whitespace changes
ignored.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-3-git-send-email-armbru@redhat.com>
The new tests demonstrate a few bugs, all clearly marked.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <1487708048-2131-2-git-send-email-armbru@redhat.com>
[A few additional test cases squashed in, see
Message-ID: <871supjijq.fsf@dusky.pond.sub.org>]
This reverts commit d3473e147a.
This commit creates a board which defaults to having 2GB of RAM.
Unfortunately on 32-bit hosts we can't create boards with 2GB of RAM,
and so 'make check' fails. I missed this during testing of the
merge, unfortunately. Luckily the offending commit is the last
one in the merge request, so we can just revert it for now.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Split xhci properties into common and nec specific.
Move the backward compat flags to nec, so the new qemu-xhci
devices doesn't carry on the compatibiity stuff.
Move the msi/msix switches too and just enable msix for qemu-xhci.
Also move the intrs and slots properties. Wasn't a great idea to
make them configurable in the first place, nobody needs this.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 1487663432-10410-1-git-send-email-kraxel@redhat.com
It should return 1 if an error occurs when reading td.
This will avoid an infinite loop issue in ohci_service_ed_list.
Signed-off-by: Li Qiang <liqiang6-s@360.cn>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-id: 1487760990-115925-1-git-send-email-liqiang6-s@360.cn
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Curiously, unrealize() is not being used, but it seems more
appropriate than handle_destroy() together with realize(). It is more
ubiquitous destroy name in qemu code base and may throw errors.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20170221141451.28305-25-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Changes:
* Add MIPS Boston board support
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Merge remote-tracking branch 'remotes/yongbok/tags/mips-20170222' into staging
MIPS patches 2017-02-22
Changes:
* Add MIPS Boston board support
# gpg: Signature made Wed 22 Feb 2017 00:08:00 GMT
# gpg: using RSA key 0x2238EB86D5F797C2
# gpg: Good signature from "Yongbok Kim <yongbok.kim@imgtec.com>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 8600 4CF5 3415 A5D9 4CFA 2B5C 2238 EB86 D5F7 97C2
* remotes/yongbok/tags/mips-20170222:
hw/mips: MIPS Boston board support
hw: xilinx-pcie: Add support for Xilinx AXI PCIe Controller
loader: Support Flattened Image Trees (FIT images)
dtc: Update requirement to v1.4.2
target-mips: Provide function to test if a CPU supports an ISA
hw/mips_gic: Update pin state on mask changes
hw/mips_gictimer: provide API for retrieving frequency
hw/mips_cmgcr: allow GCR base to be moved
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Regardless of running in UPT or legacy mode, the guest igd
drivers may attempt to use stolen memory, however only legacy
mode has BIOS support for reserving stolen memmory in the
guest VM. We zero out the stolen memory size in all cases,
then guest igd driver won't use stolen memory.
In legacy mode, user could use x-igd-gms option to specify the
amount of stolen memory which will be pre-allocated and reserved
by bios for igd use.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99028https://bugs.freedesktop.org/show_bug.cgi?id=99025
Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com>
Tested-by: Terrence Xu <terrence.xu@intel.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Since commit 4bb571d857 ("pci/pcie: don't assume cap id 0 is
reserved") removes the internal use of extended capability ID 0, the
comment here becomes invalid. However, peeling back the onion, the
code is still correct and we still can't seed the capability chain
with ID 0, unless we want to muck with using the version number to
force the header to be non-zero, which is much uglier to deal with.
The comment also now covers some of the subtleties of using cap ID 0,
such as transparently indicating absence of capabilities if none are
added. This doesn't detract from the correctness of the referenced
commit as vfio in the kernel also uses capability ID zero to mask
capabilties. In fact, we should skip zero capabilities precisely
because the kernel might also expose such a capability at the head
position and re-introduce the problem.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Tested-by: Peter Xu <peterx@redhat.com>
Reported-by: Jintack Lim <jintack@cs.columbia.edu>
Tested-by: Jintack Lim <jintack@cs.columbia.edu>
Currently we ignore this error, report it with error_reportf_err()
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
After a visit of a complex QAPI type FOO
ov = qobject_output_visitor_new(&foo);
visit_type_FOO(ov, NULL, expr, &error_abort);
visit_complete(ov, &foo);
we can safely assume qobject_type(foo) is QTYPE_QDICT. We do in many
places, but occasionally assert qobject_type(obj) == QTYPE_QDICT.
Don't. The appropriate place to check such fundamental properties of
QAPI visitors is the test suite.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1487363905-9480-15-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Leave checking qobject_type(req) to qmp_check_input_obj(). Rework
handling of json_parser_parse_err() failing without setting an error.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1487363905-9480-14-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
qobject_to_qbool(obj) returns NULL when obj isn't a QBool. Check
that instead of qobject_type(obj) == QTYPE_QBOOL.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1487363905-9480-13-git-send-email-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
