Interfaces with QEMU to baseline CPU models. The command takes two
CPU models, A and B, that are given a model name and an optional list
of CPU features. Through the query-cpu-model-baseline command issued
via QMP, a result is produced that contains a new baselined CPU model
that is guaranteed to run on both A and B.
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielh413@gmail.com>
Message-Id: <1568924706-2311-8-git-send-email-walling@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Some older s390 CPU models (e.g. z900) will not report props as a
response from query-cpu-model-expansion. As such, we should make the
props field optional when parsing the return data from the QMP response.
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Message-Id: <1568924706-2311-6-git-send-email-walling@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
When expanding a CPU model via query-cpu-model-expansion, any features
that were a part of the original model are discarded. For exmaple,
when expanding modelA with features f1, f2, a full expansion may reveal
feature f3, but the expanded model will not include f1 or f2.
Let's pass a virCPUDefPtr to the expansion function in preparation for
taking features into consideration.
Signed-off-by: Collin Walling <walling@linux.ibm.com>
Message-Id: <1568924706-2311-4-git-send-email-walling@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Unify with other code that generates parameters for the 'transaction'
command.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Rather than generating the transaction contents in random places add a
unified set of APIs to generate the contents for a 'transaction' for the
dirty bitmap APIs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
As it turns out, on my 32bit ARM machine size_t is not the same
size as ULL. However, @length argument for both functions is type
of size_t but it's treated as ULL - for instance when passed to
qemuMonitorJSONMakeCommand(). The problem is that because of
"U:size" the virJSONValueObjectAddVArgs() expects an ULL argument
but on the stack there are size_t and char * arguments (which
coincidentally add up to size of ULL). So the created command has
only two arguments "val" and incorrect "size" and no "path" which
is required.
I've tried to find other occurrences of this pattern but at the
rest of places where size_t is used it tracks size of an array so
that's safe.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
Use the function directly rather than having a wrapper.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Call to qemuMonitorJSONHumanCommand directly from
qemuMonitorArbitraryCommand.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
We don't need to escape the commands any more since we use QMP
passthrough, which means we can delete the functions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Historically HMP commands needed to be escaped to work properly.
The backdoor for calling HMP commands via QMP must unescape them so that
arguments aren't messed up.
Since we now only support the QMP passthrough the escape->unescape dance
is pointless.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
The remaining HMP commands don't require fd passing so we can purge
filedescriptor passing support from qemuMonitorJSONHumanCommandWitFd and
rename it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
qemuMonitorHMPCommandWithFd is only called via qemuMonitorHMPCommand
macro, so we can remove the macro and the extra unused cruft from the
function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
The handlers for 'add-fd' and 'remove-fd' are unused now and riddled
with legacy cruft. Purge them.
Last use was removed in f2019083de.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
In addition to the data that libvirt needs and extracts internally,
copy and store the whole 'props' JSON sub-object of the data returned by
query-hotpluggable-cpus for future use.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Use the stored job name rather than passing in the disk alias when
referring to the job which allows the same code to work also when
-blockdev will be used.
Note that this API does not require the change to use 'query-job' as it
will ever only work with blockjobs bound to disks due to the arguments
which allow only referring to a disk. For the disk-less jobs we'll need
to add a separate API later.
The change to qemuMonitorGetBlockJobInfo is required as the API was
stripping the 'drive-' prefix when returning the data which is not
desired any more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The 'blockdev-create' starts a job which creates a storage volume using
the given protocol or formats an existing (added) volume with one of the
supported storage formats.
This patch adds the monitor interaction bits.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This new event is a superset of the BLOCK_JOB* events and also covers
jobs which don't bind to a VM disk.
In this patch the monitor part is implemented.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This belongs to the new job management API which can manage also
non-block based jobs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This belongs to the new job management API which can manage also
non-block based jobs. Since we'll need to be able to attempt to cancel
jobs which potentially were not started (during reconnect) the 'quiet'
flag allows to suppress errors reported.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This belongs to the new job management API for generic jobs.
The dismiss command is meant to remove a concluded job after we were
able to get the final status.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Allow using the delayed dismiss of the job so that we can reap the state
even if libvirtd was not running when qemu emitted the job completion
event.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Allow using the node name to specify the base and top of the 'commit'
operation, allow specifying explicit job name and add support for
delayed dismiss of the job so that we can reap the state even if
libvirtd was not running when qemu emitted the job completion event.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Allow using the node name to specify the base of the 'stream' operation,
allow specifying explicit job name and add support for delayed dismiss
of the job so that we can reap the state even if libvirtd was not
running when qemu emitted the job completion event.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use 'rc' to temporarily store the subfunction return values,
instead of ret.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
In preparation to removing the json field from qemuMonitor,
stop checking for it in QEMU_CHECK_MONITOR.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Always assume JSON monitor was requested, since all the callers
pass true anyway.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Unlike the old version (which is now called qemuMonitorGetGuestCPUx86),
this monitor API checks for individual features by their names rather
than processing CPUID bits. Thus we can get the list of enabled and
disabled features for both CPUID and MSR features.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It was never implemented or used for anything else anyway. Mainly
because it uses CPUID features bits. The function is renamed as
qemuMonitorGetGuestCPUx86 to make this explicit.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The hash table returned by qemuMonitorGetAllBlockJobInfo is organized by
the frontend name (which skipps the 'drive-' prefix). While our code
properly matches the jobs to the disk, qemu needs the full job name
including the 'drive-' prefix to be able to identify jobs.
Fix this by adding an argument to qemuMonitorGetAllBlockJobInfo which
does not modify the job name before filling the hash.
This fixes a regression where users would not be able to cancel/pivot
block jobs after restarting libvirtd while a blockjob is running.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The upcoming virDomainBackup() API needs to take advantage of the
ability to expose a bitmap as part of nbd-server-add for a pull-mode
backup (this is the recently-added QEMU_CAPS_NBD_BITMAP capability).
Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
The upcoming virDomainBackup() API needs to take advantage of various
qcow2 bitmap manipulations as the basis to virDomainCheckpoints and
incremental backups. Add four functions to expose
block-dirty-bitmap-{add,enable,disable,merge} (this is the
recently-added QEMU_CAPS_BITMAP_MERGE capability).
Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Migration always uses a TCP socket for NBD servers, because we don't
support same-host migration. But upcoming pull-mode incremental backup
needs to also support a Unix socket, for retrieving the backup from
the same host. Support this by plumbing virStorageNetHostDef through
the monitor calls, since that is a nice reusable struct that can track
both TCP and Unix sockets.
Update qemumonitorjsontest to verify both forms of the QMP command.
Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Split out the 'shallow' and 'reuse' flags as booleans rather than passing
in flags and constructing them in irrelevant APIs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Split out the 'shallow' flag as a boolean argument rather than passing
in flags and constructing them in irrelevant APIs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
So far, this command returns a structure with only one member:
'wakeup-suspend-support'. But that's okay. It's what we are after
anyway.
Based-on-work-of: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
They were added in qemu commit 7572150c189c6553c2448334116ab717680de66d
released in v0.14.0.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
A caller might be interested in differentiating the cause for
error, especially if DeviceNotFound error occurred.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>). VIR_ONCE_GLOBAL_INIT is almost
exclusively called without an ending semicolon, but let's
standardize on using one like the other macros.
Add a dummy struct definition at the end of the macro, so
the compiler will require callers to add a semicolon.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>), and we have a mix of semicolon and
non-semicolon usage through the code. Let's standardize on using
a semicolon for VIR_ENUM_IMPL calls.
Move the verify() statement to the end of the macro and drop
the semicolon, so the compiler will require callers to add a
semicolon.
While we are touching these call sites, standardize on putting
the closing parenth on its own line, as discussed here:
https://www.redhat.com/archives/libvir-list/2019-January/msg00750.html
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>), and we have a mix of semicolon and
non-semicolon usage through the code. Let's standardize on using
a semicolon for VIR_ENUM_DECL calls.
Drop the semicolon from the final statement of the macro, so
the compiler will require callers to add a semicolon.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
In the previous commit we are using uint64_t for storing subnet
prefix and interface id that qemu reports in
RDMA_GID_STATUS_CHANGED event. We also report them in some debug
messages. This poses a problem because uint64_t can be UL or ULL
depending on the host architecture and hence we wouldn't know
which format to use. Switch to ULL which is big enough and
doesn't suffer from the issue.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This event is emitted on the monitor when a GID table in pvrdma device
is modified and the change needs to be propagate to the backend RDMA
device's GID table.
The control over the RDMA device's GID table is done by updating the
device's Ethernet function addresses.
Usually the first GID entry is determine by the MAC address, the second
by the first IPv6 address and the third by the IPv4 address. Other
entries can be added by adding more IP addresses. The opposite is the
same, i.e. whenever an address is removed, the corresponding GID entry
is removed.
The process is done by the network and RDMA stacks. Whenever an address
is added the ib_core driver is notified and calls the device driver's
add_gid function which in turn update the device.
To support this in pvrdma device we need to hook into the create_bind
and destroy_bind HW commands triggered by pvrdma driver in guest.
Whenever a changed is made to the pvrdma device's GID table a special
QMP messages is sent to be processed by libvirt to update the address of
the backend Ethernet device.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Require that all headers are guarded by a symbol named
LIBVIRT_$FILENAME
where $FILENAME is the uppercased filename, with all characters
outside a-z changed into '_'.
Note we do not use a leading __ because that is technically a
namespace reserved for the toolchain.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
In many files there are header comments that contain an Author:
statement, supposedly reflecting who originally wrote the code.
In a large collaborative project like libvirt, any non-trivial
file will have been modified by a large number of different
contributors. IOW, the Author: comments are quickly out of date,
omitting people who have made significant contribitions.
In some places Author: lines have been added despite the person
merely being responsible for creating the file by moving existing
code out of another file. IOW, the Author: lines give an incorrect
record of authorship.
With this all in mind, the comments are useless as a means to identify
who to talk to about code in a particular file. Contributors will always
be better off using 'git log' and 'git blame' if they need to find the
author of a particular bit of code.
This commit thus deletes all Author: comments from the source and adds
a rule to prevent them reappearing.
The Copyright headers are similarly misleading and inaccurate, however,
we cannot delete these as they have legal meaning, despite being largely
inaccurate. In addition only the copyright holder is permitted to change
their respective copyright statement.
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
