| Commit message (Collapse) | Author | Age | Files | Lines |
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Linus likely does not want to get e-mails about QEMU, so let's
just remove this option.
Suggested-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Don Slutz <dslutz@verizon.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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simpletrace.py does not recognize the tcg option while reading trace-events file. In result simpletrace does not work on binary traces and tcg enabled events. Moved transformation of tcg enabled events to _read_events() which is used by simpletrace.
Signed-off-by: Christoph Seifert <christoph.seifert@posteo.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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pc, virtio, misc bugfixes
A bunch of minor bugfixes all over the place.
changes from v2:
added cpu hotplug rework
added default vga type switch
more fixes
changes from v1:
fix for test re-generation script
add missing acks to two patches
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 03 Nov 2014 16:33:13 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream: (28 commits)
vga: flip qemu 2.2 pc machine types from cirrus to stdvga
vga: add default display to machine class
vhost-user: fix mmap offset calculation
hw/i386/acpi-build.c: Fix memory leak in acpi_build_tables_cleanup()
smbios: Encode UUID according to SMBIOS specification
pc: Add pc_compat_2_1() function
hw/virtio/vring/event_idx: fix the vring_avail_event error
hw/pci: fixed hotplug crash when using rombar=0 with devices having romfile
hw/pci: fixed error flow in pci_qdev_init
-machine vmport=off: Allow disabling of VMWare ioport emulation
acpi/cpu-hotplug: introduce helper function to keep bit setting in one place
cpu-hotplug: rename function for better readability
qom/cpu: remove the unused CPU hot-plug notifier
pc: Update rtc_cmos in pc_cpu_plug
pc: add cpu hotplug handler to PC_MACHINE
acpi:piix4: convert cpu hotplug to hotplug_handler API
acpi:ich9: convert cpu hotplug to hotplug_handler API
acpi/cpu: add cpu hotplug callback function to match hotplug_handler API
acpi: create separate file for TCPA log
tests: fix rebuild-expected-aml.sh for acpi-test rename
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Add a 16-bytes buffer to allow storing a 128-bit UUID value in an
ACPI table.
Signed-off-by: Gal Hammer <ghammer@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Add support for powerpc platforms. We use uname -m, which allows us to
detect ppc, ppc64 and ppc64le/el.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Unfortunately ioctl numbers are platform specific, so abstract them out
of the code so they can be overridden. As it happens x86 and s390 share
the same values, so nothing needs to change yet.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The current platform detection is a little bit messy. We look for lines
in /proc/cpuinfo starting with 'flags' OR 'vendor-id', and scan both
for values we know will only occur in one or the other. We also keep
scanning once we've found a value, which could be a feature, but isn't
in this case.
We'd also like to add another platform, powerpc, which will just make it
worse. So clean it up in preparation.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In kvm_stat we have a dictionary of exit reasons for s390. Firstly these
are not s390 specific, they are the generic exit reasons. So rename the
dictionary to reflect that, and add it separately to filters[].
Secondly, the values are defined using hex, but in the kernel header
they are decimal. That means values above 9 in kvm_stat are incorrect.
While we're there, fix the whitespace to match the rest of the file.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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In kvm_stat we grovel through /sys to find out how many cpus are in the
system. However if a cpu is offline it will still be present in /sys,
and the perf_event_open() will fail.
Modify the logic to only return online cpus. We need to be careful on
systems which don't support cpu hotplug, the online file will not be
present at all.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The list emitted by --git-fallback often leads inexperienced contributors
to add pointless CCs. While not discouraging usage of --git-fallback,
we want to:
1) disable the fallback if only some files lack a maintainer
$ scripts/get_maintainer.pl -f util/cutils.c hw/ide/core.c
Kevin Wolf <kwolf@redhat.com> (odd fixer:IDE)
Stefan Hajnoczi <stefanha@redhat.com> (odd fixer:IDE)
This behavior is taken even if --git-fallback is specified.
2) warn the contributors about what we're doing, asking them to use their
common sense:
$ scripts/get_maintainer.pl -f util/cutils.c
get_maintainer.pl: No maintainers found, printing recent contributors.
get_maintainer.pl: Do not blindly cc: them on patches! Use common sense.
Luiz Capitulino <lcapitulino@redhat.com> (commit_signer:1/2=50%)
...
$
Explicitly disabling the fallback will not result in the warning message:
$ scripts/get_maintainer.pl -f util/cutils.c --no-git-fallback
$ echo $?
0
(Returning 1 would break usage of scripts/get_maintainer.pl as a cccmd
for git-send-email).
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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All checks in the loop are guarded by that condition, and there is a
handy "if" just below. Simplify the code.
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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* remotes/qmp-unstable/queue/qmp:
Add HMP command "info memory-devices"
qemu-socket: Eliminate silly QERR_ macros
qemu-socket: Polish errors for connect() and listen() failure
qemu-iotests: Test missing "driver" key for blockdev-add
tests: add QMP input visitor test for unions with no discriminator
qapi: dealloc visitor, implement visit_start_union
qapi: add visit_start_union and visit_end_union
virtio-balloon: fix integer overflow in memory stats feature
monitor: Reset HMP mon->rs in CHR_EVENT_OPEN
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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In some cases an input visitor might bail out on filling out a
struct for various reasons, such as missing fields when running
in strict mode. In the case of a QAPI Union type, this may lead
to cases where the .kind field which encodes the union type
is uninitialized. Subsequently, other visitors, such as the
dealloc visitor, may use this .kind value as if it were
initialized, leading to assumptions about the union type which
in this case may lead to segfaults. For example, freeing an
integer value.
However, we can generally rely on the fact that the always-present
.data void * field that we generate for these union types will
always be NULL in cases where .kind is uninitialized (at least,
there shouldn't be a reason where we'd do this purposefully).
So pass this information on to Visitor implementation via these
optional start_union/end_union interfaces so this information
can be used to guard against the situation above. We will make
use of this information in a subsequent patch for the dealloc
visitor.
Cc: qemu-stable@nongnu.org
Reported-by: Fam Zheng <famz@redhat.com>
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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This adds reporting of RDSEED exiting and XSAVES/XRSTORS #UD and fixes
the range of VMCS revision as well as some typos.
Signed-off-by: Adrian-Ken Rueegsegger <ken@codelabs.ch>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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This only affects lttng user space tracing at the moment.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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The script can get fooled too easily. For instance, it finds
trace_megasas_io_read_start when looking for trace_megasas_io_read,
and incorrectly concludes that event megasas_io_read is used.
Supply -w to git-grep to tighten the search.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-id: 1411476811-24251-2-git-send-email-armbru@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Use \w for properties and trace event names since they are both drawn
from [a-zA-Z0-9_] character sets.
The .* for matching properties was too aggressive and caused the
following failure with foo(int rc) "(this is a test)":
Traceback (most recent call last):
File "scripts/tracetool.py", line 139, in <module>
main(sys.argv)
File "scripts/tracetool.py", line 134, in main
binary=binary, probe_prefix=probe_prefix)
File "scripts/tracetool/__init__.py", line 334, in generate
events = _read_events(fevents)
File "scripts/tracetool/__init__.py", line 262, in _read_events
res.append(Event.build(line))
File "scripts/tracetool/__init__.py", line 225, in build
return Event(name, props, fmt, args, arg_fmts)
File "scripts/tracetool/__init__.py", line 185, in __init__
% ", ".join(unknown_props))
ValueError: Unknown properties: foo(int, rc)
Cc: Lluís Vilanova <vilanova@ac.upc.edu>
Reported-by: Eric Auger <eric.auger@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1411468626-20450-1-git-send-email-stefanha@redhat.com
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TCG-enabled events start with two format strings. Delay per-argument format
computation until requested ('Event.formats').
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1408557576-14574-3-git-send-email-mreitz@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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This is a dummy file with no user, drop it.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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Mostly bugfixes + Alexey's interface-based implementation
of the NMI monitor command.
# gpg: Signature made Thu 28 Aug 2014 15:07:22 BST using RSA key ID 9B4D86F2
# gpg: Good signature from "Paolo Bonzini <pbonzini@redhat.com>"
# gpg: aka "Paolo Bonzini <bonzini@gnu.org>"
* remotes/kvm/tags/for-upstream:
mc146818rtc: reinitialize irq_reinject_on_ack_count on reset
target-i386: Add "tsc_adjust" CPU feature name
target-i386: Add "mpx" CPU feature name
vl: process -object after other backend options
checkpatch.pl: adjust typedef definition to QEMU coding style
x86: Clear MTRRs on vCPU reset
x86: kvm: Add MTRR support for kvm_get|put_msrs()
x86: Use common variable range MTRR counts
target-i386: Don't forbid NX bit on PAE PDEs and PTEs
spapr: Add support for new NMI interface
s390x: Migrate to new NMI interface
s390x: Convert QEMUMachine to MachineClass
cpus: Define callback for QEMU "nmi" command
kvm: run cpu state synchronization on target vcpu thread
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Most QEMU typedefs are camelcase, starting with one uppercase letter
and containing at least one lowercase letter. There are a few
all-uppercase types, add the most common too.
This fixes recognition of types in lines such as
static __attribute__((unused)) inline void tcg_out8(TCGContext *s, uint8_t v)
(Example provided by Peter Maydell).
Reported-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Cc: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Red Hat Enterprise Linux 5 ships Python 2.4.3. The all() function was
added in Python 2.5 so we cannot use it.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
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There is one instance of any() in qapi.py that breaks builds on older
distros that ship Python 2.4 (like RHEL5):
GEN qmp-commands.h
Traceback (most recent call last):
File "build/scripts/qapi-commands.py", line 445, in ?
exprs = parse_schema(input_file)
File "build/scripts/qapi.py", line 329, in parse_schema
schema = QAPISchema(open(input_file, "r"))
File "build/scripts/qapi.py", line 110, in __init__
if any(include_path == elem[1]
NameError: global name 'any' is not defined
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Benoît Canet <benoit.canet@nodalink.com>
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This makes the UST backend pay attention to the format string arguments
that are defined when defining payload data. With this you can now
ensure integers are reported in hex mode if you want.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Generate header "trace/generated-tcg-tracers.h" with the necessary routines for
tracing events in guest code:
* trace_${event}_tcg
Convenience wrapper that calls the translation-time tracer
'trace_${event}_trans', and calls 'gen_helper_trace_${event}_exec to
generate the TCG code to later trace the event at execution time.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Generates header "trace/generated-helpers-wrappers.h" with definitions for TCG
helper wrappers.
These wrappers ('gen_helper_trace_${event}_exec_wrapper') transform mixed native
and TCG argument types to TCG types and call the actual TCG helpers
('gen_helper_trace_${event}_exec_proxy').
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Generates file "trace/generated-helpers.c" with TCG helper definitions to trace
events in guest code at execution time.
The helpers ('helper_trace_${event}_exec_proxy') cast the TCG-compatible native
argument types to their original types (as defined in "trace-events") and call
the tracing routine ('trace_${event}_exec').
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Generates file "trace/generated-helpers.h" with TCG helper declarations to trace
events in guest code at execution time ('trace_${event}_exec_proxy').
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Transforms event:
tcg name(...) "...", "..."
into two internal events:
tcg-trans name_trans(...) "..."
tcg-exec name_exec(...) "..."
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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It can be useful to read simpletrace files that have no header. For
example, a ring buffer may not have a header record but can still be
processed if the user is sure the file format version is compatible.
$ scripts/simpletrace.py --no-header trace-events trace-file
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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This new tracetool "format" generates a SystemTap .stp file that outputs
simpletrace binary trace data.
In contrast to simpletrace or ftrace, SystemTap does not define its own
trace format. All output from SystemTap is generated by .stp files.
This patch lets us generate a .stp file that outputs in the simpletrace
binary format.
This makes it possible to reuse simpletrace.py to analyze traces
recorded using SystemTap. The simpletrace binary format is especially
useful for long-running traces like flight-recorder mode where string
formatting can be expensive.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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SystemTap reserved words sometimes conflict with QEMU variable names.
We escape them to prevent conflicts.
Move escaping into its own function so the next patch can reuse it.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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While comparing qemu-1.0 json output with qemu-2.1, a few fields got
marked unused. These need to be skipped over, and not flagged as
mismatches.
For handling unused fields, the exact number of bytes need to be skipped
over as the size of the unused field.
Currently, only the term "unused" is matched. When more field names
turn up, this will have to be updated based on the whitelist matching
method to match more such terms.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
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Comparing json outputs from qemu-1.0 with qemu-2.1 turned up a few
description name changes; whitelist them here.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
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Commit 292b1634 changed the section name of "ICH9 LPC" to "ICH9-LPC",
and that causes the static checker to flag this:
Section "ICH9 LPC" does not exist in dest
This patch introduces a function that checks for section renames and
also a dictionary that maps those renames.
Reported-by: "Dr. David Alan Gilbert" <dgilbert@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
---
This is a small patch to a script; doesn't break qemu and helps with the
static checker, so it's a very low-risk patch for 2.1.
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This patch improve docs and uses c_type(argentry, is_param=True)
in script.
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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into staging
migration/next for 20140623
# gpg: Signature made Mon 23 Jun 2014 18:18:57 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20140623: (22 commits)
vmstate: Refactor & increase tests for primitive types
vmstate: Return error in case of error
migration: Remove unneeded minimum_version_id_old
tests: vmstate static checker: add size mismatch inside substructure
tests: vmstate static checker: add substructure for usb-kbd for hid section
tests: vmstate static checker: remove Subsections
tests: vmstate static checker: remove a subsection
tests: vmstate static checker: remove Description inside Fields
tests: vmstate static checker: remove Description
tests: vmstate static checker: remove Fields
tests: vmstate static checker: change description name
tests: vmstate static checker: remove last field in a struct
tests: vmstate static checker: remove a field
tests: vmstate static checker: remove a section
tests: vmstate static checker: minimum_version_id check
tests: vmstate static checker: version mismatch inside a Description
tests: vmstate static checker: add version error in main section
tests: vmstate static checker: incompat machine types
tests: vmstate static checker: add dump1 and dump2 files
vmstate-static-checker: script to validate vmstate changes
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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This script compares the vmstate dumps in JSON format as output by QEMU
with the -dump-vmstate option.
It flags various errors, like version mismatch, sections going away,
size mismatches, etc.
This script is tolerant of a few changes that do not change the on-wire
format, like embedding a few fields within substructs.
The script takes -s/--src and -d/--dest parameters, to which filenames
are given as arguments.
Example:
(in a qemu 2.0 tree):
./x86_64-softmmu/qemu-system-x86_64 -dump-vmstate qemu-2.0.json
(in a qemu 2.2 tree:)
./x86_64-softmmu/qemu-system-x86_64 -dump-vmstate -M pc-i440fx-2.0 \
qemu-2.2-m2.0.json
./scripts/vmstate-static-checker.py -s qemu-2.0.json -d qemu-2.2-m2.0.json
The script also takes a --reverse parameter to switch the src and dest
jsons. This is just a shorthand for reversing the src and dest.
The --help parameter shows usage information.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
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qapi-event.py will parse the schema and generate qapi-event.c, then
the API in qapi-event.c can be used to handle events in qemu code.
All API have prefix "qapi_event".
The script mainly includes two parts: generate API for each event
define, generate an enum type for all defined events.
Since in some cases the real emit behavior may change, for example,
qemu-img would not send a event, a callback layer is used to
control the behavior. As a result, the stubs at compile time
can be saved, the binding of block layer code and monitor code
will become looser.
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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We always generate a space between type and identifier in parameter
and variable declarations, even when idiomatic C style doesn't have
a space there. Suppress it.
Signed-off-by: Amos Kong <akong@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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It's ugly to add const prefix for parameter type by an if statement
outside c_type(). This patch adds a parameter to do it.
Signed-off-by: Amos Kong <akong@redhat.com>
Suggested-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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A space after * when declaring a pointer type is redundant.
Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
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The kvm headers now have a dependency on psci.h, sync it into our linux
header copy as well.
Signed-off-by: Alexander Graf <agraf@suse.de>
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Adds support to compile QEMU with multiple tracing backends at the same time.
For example, you can compile QEMU with:
$ ./configure --enable-trace-backends=ftrace,dtrace
Where 'ftrace' can be handy for having an in-flight record of events, and 'dtrace' can be later used to extract more information from the system.
This patch allows having both available without recompiling QEMU.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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Extract the pid field from the trace record and print it.
Change the trace record tuple from:
(event_num, timestamp, arg1, ..., arg6)
to:
(event_num, timestamp, pid, arg1, ..., arg6)
Trace event methods now support 3 prototypes:
1. <event-name>(arg1, arg2, arg3)
2. <event-name>(timestamp, arg1, arg2, arg3)
3. <event-name>(timestamp, pid, arg1, arg2, arg3)
Existing script continue to work without changes, they only know about
prototypes 1 and 2.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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* remotes/kvm/uq/master:
kvm: Fix eax for cpuid leaf 0x40000000
kvmclock: Ensure proper env->tsc value for kvmclock_current_nsec calculation
kvm: Enable -cpu option to hide KVM
kvm: Ensure negative return value on kvm_init() error handling path
target-i386: set CC_OP to CC_OP_EFLAGS in cpu_load_eflags
target-i386: get CPL from SS.DPL
target-i386: rework CPL checks during task switch, preparing for next patch
target-i386: fix segment flags for SMM and VM86 mode
target-i386: Fix vm86 mode regression introduced in fd460606fd6f.
kvm_stat: allow choosing between tracepoints and old stats
kvmclock: Ensure time in migration never goes backward
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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The old stats contain information not available in the tracepoints.
By default, keep the old behavior, but allow choosing which set of stats
to present, or even both.
Inspired by a patch from Marcelo Tosatti.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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