The generic set/query packets contains implementation for varioius
sub-commands which are required for GDB and also additional commands
which are QEMU specific.
To see which QEMU specific commands are available use the command
gdb> maintenance packet qqemu.Supported
Currently the only implemented QEMU specific command is the command
that sets the single step behavior.
gdb> maintenance packet qqemu.sstepbits
Will display the MASK bits used to control the single stepping.
gdb> maintenance packet qqemu.sstep
Will display the current value of the mask used when single stepping.
gdb> maintenance packet Qqemu.sstep:HEX_VALUE
Will change the single step mask.
Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-18-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-16-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-14-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-13-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-12-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-11-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-7-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-6-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-5-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-4-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Message-Id: <20190529064148.19856-3-arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Jon Doron <arilou@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20190529064148.19856-2-arilou@gmail.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
While size_t is defined to happily access the biggest host object this
isn't the case when generating masks for 64 bit guests on 32 bit
hosts. Otherwise we end up truncating the address when we fall back to
our unaligned helper.
Fixes: https://bugs.launchpad.net/qemu/+bug/1831545
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Andrew Randrianasulu <randrianasulu@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
As I've been reviewing a lot of this recently and I'm going to put
together a pull request I'd better keep an eye on it. Philippe has
also volunteered to be a reviewer.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Instead of doing the full real to 64 bit dance we are attempting to
leverage Xen's PVH boot spec to go from 32 bit to 64 bit.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Since we only run build the multiarch tests and we use a fully
resolved path for the crt object we don't need the wildcard or VPATH
messing about.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
If we've truncated a wider read we can detect the condition earlier by
looking at the number of zeros we've read. So we don't trip up on
cases where we have written zeros to the start of the buffer we also
ensure we only start each offset read from the right address.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
When running on 32 bit TCG backends a wide unaligned load ends up
truncating data before returning to the guest. We specifically have
the return type as uint64_t to avoid any premature truncation so we
should use the same for the interim types.
Fixes: https://bugs.launchpad.net/qemu/+bug/1830872
Fixes: eed5664238
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Laszlo Ersek <lersek@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
This is ostensibly to avoid the weirdness of len looking like it might
come from a guest and sometimes being used. While we are at it fix up
the error checking for the arm-linux-user implementation of the API
which got flagged up by Coverity (CID 1401700).
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Add proper unicode handling when processing strings.
Also need to explicitly say we want int not float.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190520124716.30472-3-kraxel@redhat.com>
[AJB: fix conflicts with tests/vm: Port basevm to Python 3]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Use git archive to create tarballs of qemu and submodules instead of
cloning the repository and the submodules. This is a order of magnitude
faster because it doesn't fetch the submodules from the internet each
time the script runs.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190520124716.30472-2-kraxel@redhat.com>
[AJB: fixed up tabs]
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Added description of variables missing on vm-test help.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20190329210804.22121-6-wainersm@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
`make vm-build-centos` run docker-based tests on CentOS. The
created containers should have network otherwise some tests
fail. Also fixed the BUILD_SCRIPT template to correctly
evaluate "V=1" for verbose output.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20190329210804.22121-5-wainersm@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Fixed tests/vm/basevm.py to run with Python 3:
- hashlib.sha1() requires an binary encoded object.
- uses floor division ("//") (PEP 238).
- decode bytes to unicode when needed.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20190329210804.22121-3-wainersm@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Changed the vm-test makefile to execute python scripts
with the interpreter configured on build. This allows to
run vm-test targets properly in Linux distros with Python 3
only support.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Message-Id: <20190329210804.22121-2-wainersm@redhat.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
We document this on our wiki and we might as well catch it in our CI
rather than waiting for it to be picked up on merge:
https://wiki.qemu.org/Testing#clang_UBSan
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
The toolchain PPA has it so we might as well use it. We currently have
to add:
-Wno-error=stringop-truncation
as there are still strncpy operations in the tree operating on things
that haven't been annotated with QEMU_NONSTRING.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
This has aged a little and we have a separate LTS image for testing on
the older distros. Update it to a more recent release like its Fedora
cousin.
Besides it is useful to have something with gcc-9 on it for squashing
those stringop truncation errors.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
While at it remove the bogus :latest tag for cris cross compiler. It
tends to break caching and cause confusion.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
The previous use of gettimeofday() ran into undefined behaviour when
we ended up doing a div 0 for a very short operation. This is because
gettimeofday only works at the microsecond level as well as being
prone to discontinuous jumps in system time. Using clock_gettime with
CLOCK_MONOTONIC gives greater precision and alleviates some of the
potential problems with time jumping around.
We could use CLOCK_MONOTONIC_RAW to avoid being tripped up by NTP and
adjtime but that is Linux specific so I decided it would do for now.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
QAPIDoc uses a state machine to for processing of documentation lines.
Its state is encoded as an enum QAPIDoc._state (well, as enum-like
class actually, thanks to our infatuation with Python 2).
All we ever do with the state is calling the state's function to
process a line of documentation. The enum values effectively serve as
handles for the functions.
Eliminate the rather wordy indirection: store the function to call in
QAPIDoc._append_line. Update and improve comments.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190606153803.5278-8-armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
[Commit message typo fixed]
In commit 23dece19da ('file-posix: Make auto-read-only dynamic') ,
auto-read-only=on changed its behaviour in file-posix for the 4.0
release. This change cannot be detected through the usual mechanisms
like schema introspection. Add a new feature flag to the schema to
allow libvirt to detect the presence of the new behaviour.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20190606153803.5278-7-armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Comment tweaked on Eric Blake's advice]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Features will be documented in a new part introduced by a "Features:"
line, after arguments and before named sections.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20190606153803.5278-6-armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Documentation comments follow a certain structure: First, we have a text
with a general description (called QAPIDoc.body). After this,
descriptions of the arguments follow. Finally, we have a part that
contains various named sections.
The code doesn't show this structure, but just checks various attributes
that indicate indirectly which part is being processed, so it happens to
do the right set of things in the right phase. This is hard to follow,
and adding support for documentation of features would be even harder.
This patch restructures the code so that the three parts are clearly
separated. The code becomes a bit longer, but easier to follow. The
resulting output remains unchanged.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20190606153803.5278-5-armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20190606153803.5278-4-armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20190606153803.5278-3-armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Sometimes, the behaviour of QEMU changes without a change in the QMP
syntax (usually by allowing values or operations that previously
resulted in an error). QMP clients may still need to know whether
they can rely on the changed behavior.
Let's add feature flags to the QAPI schema language, so that we can make
such changes visible with schema introspection.
An example for a schema definition using feature flags looks like this:
{ 'struct': 'TestType',
'data': { 'number': 'int' },
'features': [ 'allow-negative-numbers' ] }
Introspection information then looks like this:
{ "name": "TestType", "meta-type": "object",
"members": [
{ "name": "number", "type": "int" } ],
"features": [ "allow-negative-numbers" ] }
This patch implements feature flags only for struct types. We'll
implement them more widely as needed.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20190606153803.5278-2-armbru@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Add missing 'falloc' among the allowed values of 'preallocation'
option; show it and 'full' only when they are supported.
('falloc' is supported if defined CONFIG_GLUSTERFS_FALLOCATE,
'full' is supported if defined CONFIG_GLUSTERFS_ZEROFILL)
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190524075848.23781-4-sgarzare@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Show 'falloc' among the allowed values of 'preallocation'
option, only when it is supported (if defined CONFIG_POSIX_FALLOCATE)
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190524075848.23781-3-sgarzare@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Add default and available values in the documentation block of
each block device or protocol that supports the 'preallocation'
parameter during the image creation.
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190524075848.23781-2-sgarzare@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Commit 4e4fa398db "qdev: Introduce lost tick policy property"
(v1.1.0) created PropertyType PROP_TYPE_LOSTTICKPOLICY with values
"discard", "delay", "merge", and "slew". Value "merge" has never been
used. Delete it.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20190401150140.29151-1-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Next pull request against qemu-4.1. The big thing here is adding
support for hot plug of P2P bridges, and PCI devices under P2P bridges
on the "pseries" machine (which doesn't use SHPC). Other than that
there's just a handful of fixes and small enhancements.
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.1-20190612' into staging
ppc patch queue 2019-06-12
Next pull request against qemu-4.1. The big thing here is adding
support for hot plug of P2P bridges, and PCI devices under P2P bridges
on the "pseries" machine (which doesn't use SHPC). Other than that
there's just a handful of fixes and small enhancements.
# gpg: Signature made Wed 12 Jun 2019 06:47:56 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-4.1-20190612:
ppc/xive: Make XIVE generate the proper interrupt types
ppc/pnv: activate the "dumpdtb" option on the powernv machine
target/ppc: Use tcg_gen_gvec_bitsel
spapr: Allow hot plug/unplug of PCI bridges and devices under PCI bridges
spapr: Direct all PCI hotplug to host bridge, rather than P2P bridge
spapr: Don't use bus number for building DRC ids
spapr: Clean up DRC index construction
spapr: Clean up spapr_drc_populate_dt()
spapr: Clean up dt creation for PCI buses
spapr: Clean up device tree construction for PCI devices
spapr: Clean up device node name generation for PCI devices
target/ppc: Fix lxvw4x, lxvh8x and lxvb16x
spapr_pci: Improve error message
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Jon Doron
Alex Bennée
Gerd Hoffmann
Wainer dos Santos Moschetta
Philippe Mathieu-Daudé
Markus Armbruster
Kevin Wolf
Stefano Garzarella
Peter Maydell