Daniel P. Berrange [Fri, 28 Aug 2015 13:40:01 +0000 (14:40 +0100)]
osdep: add qemu_fork() wrapper for safely handling signals
When using regular fork() the child process of course inherits
all the parents' signal handlers. If the child then proceeds
to close() any open file descriptors, it may break some of those
registered signal handlers. The child generally does not want to
ever run any of the signal handlers that the parent may have
installed in the short time before it exec's. The parent may also
have blocked various signals which the child process will want
enabled.
This introduces a wrapper qemu_fork() that takes care to sanitize
signal handling across fork. Before forking it blocks all signals
in the parent thread. After fork returns, the parent unblocks the
signals and carries on as usual. The child, however, resets all the
signal handlers back to their defaults before it unblocks signals.
The child process can now exec the binary in a "clean" signal
environment.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrange [Fri, 14 Aug 2015 17:56:44 +0000 (18:56 +0100)]
ui: convert VNC startup code to use SocketAddress
The VNC code is currently using QemuOpts to configure the
sockets connections / listeners it needs. Convert it to
use SocketAddress to bring it in line with modern QAPI
based code elsewhere in QEMU.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrange [Tue, 1 Sep 2015 13:46:50 +0000 (14:46 +0100)]
sockets: allow port to be NULL when listening on IP address
If the port in the SocketAddress struct is NULL, it can allow
the kernel to automatically select a free port. This is useful
in particular in unit tests to avoid a race trying to find a
free port to run a test case on.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrange [Fri, 14 Aug 2015 17:18:41 +0000 (18:18 +0100)]
sockets: move qapi_copy_SocketAddress into qemu-sockets.c
The qapi_copy_SocketAddress method is going to be useful
in more places than just qemu-char.c, so move it into
the qemu-sockets.c file to allow its reuse.
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Daniel P. Berrange [Fri, 1 May 2015 16:36:20 +0000 (17:36 +0100)]
sockets: add helpers for creating SocketAddress from a socket
Add two helper methods that, given a socket file descriptor,
can return a populated SocketAddress struct containing either
the local or remote address information.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Peter Maydell [Tue, 20 Oct 2015 09:52:56 +0000 (10:52 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-usb-
20151020-1' into staging
usb: misc small tweaks.
# gpg: Signature made Tue 20 Oct 2015 08:24:09 BST using RSA key ID
D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-usb-
20151020-1:
usb-audio: increate default buffer size
usb: print device id in "info usb" monitor command
usb-host: add wakeup call for iso xfers
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Tue, 20 Oct 2015 08:04:20 +0000 (09:04 +0100)]
Merge remote-tracking branch 'remotes/mdroth/tags/qga-pull-2015-10-14-v4-tag' into staging
qemu-ga patch queue
* add unit tests for qemu-ga
* add guest-exec support for posix/w32 guests
* added 'qemu-ga' target for w32. this allows us to do full MSI build,
without overloading 'qemu-ga.exe' target with uneeded dependencies.
* number of s/g_new/g_malloc/ conversions for qga
v2:
* commit message and qapi documentation spelling fixes
* rename 'inp-data' guest-exec param to 'input-data'
v3:
* fix OSX build errors for test-qga by using PRId64
format in place of glib's, and dropping use of G_SPAWN_DEFAULT
macro for glib 2.22 compat
* fix win32 build warnings for 32-bit builds by avoid int casts
of process HANDLEs
v4:
* assert connect_qga() doesn't fail
* only enable test-qga for linux hosts
* allow get-memory-block-info* to fail if memory blocks aren't exposed in
sysfs
# gpg: Signature made Tue 20 Oct 2015 00:33:43 BST using RSA key ID
F108B584
# gpg: Good signature from "Michael Roth <flukshun@gmail.com>"
# gpg: aka "Michael Roth <mdroth@utexas.edu>"
# gpg: aka "Michael Roth <mdroth@linux.vnet.ibm.com>"
* remotes/mdroth/tags/qga-pull-2015-10-14-v4-tag:
qga: fix uninitialized value warning for win32
qga: guest-exec simple stdin/stdout/stderr redirection
qga: handle G_IO_STATUS_AGAIN in ga_channel_write_all()
qga: handle possible SIGPIPE in guest-file-write
qga: guest exec functionality
qga: drop guest_file_init helper and replace it with static initializers
tests: add a local test for guest agent
qga: guest-get-memory-blocks shouldn't fail for unexposed memory blocks
glib-compat: add 2.38/2.40/2.46 asserts
qtest: add a few fd-level qmp helpers
qga: do not override configuration verbosity
qga: add QGA_CONF environment variable
qga: Use g_new() & friends where that makes obvious sense
build: qemu-ga: add 'qemu-ga' build target for w32
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Gerd Hoffmann [Tue, 6 Oct 2015 13:31:56 +0000 (15:31 +0200)]
usb-audio: increate default buffer size
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Tue, 6 Oct 2015 13:31:21 +0000 (15:31 +0200)]
usb: print device id in "info usb" monitor command
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Gerd Hoffmann [Fri, 17 Jul 2015 07:12:57 +0000 (09:12 +0200)]
usb-host: add wakeup call for iso xfers
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Michael Roth [Sat, 17 Oct 2015 15:31:16 +0000 (10:31 -0500)]
qga: fix uninitialized value warning for win32
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Yuri Pudgorodskiy [Tue, 13 Oct 2015 15:41:23 +0000 (18:41 +0300)]
qga: guest-exec simple stdin/stdout/stderr redirection
Implemented with base64-encoded strings in qga json protocol.
Glib portable GIOChannel is used for data I/O.
Optinal stdin parameter of guest-exec command is now used as
stdin content for spawned subprocess.
If capture-output bool flag is specified, guest-exec redirects out/err
file descriptiors internally to pipes and collects subprocess
output.
Guest-exe-status is modified to return this collected data to requestor
in base64 encoding.
Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
* switch from 'struct GuestIOExecData' to 'GuestIOExecData'
* s/TRUE/true/g, s/FALSE/false/g for gboolean return values
* s/inp_data/input_data/
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Yuri Pudgorodskiy [Tue, 13 Oct 2015 15:41:22 +0000 (18:41 +0300)]
qga: handle G_IO_STATUS_AGAIN in ga_channel_write_all()
glib may return G_IO_STATUS_AGAIN which is actually not an error.
Also fixed a bug when on incomplete write buf pointer was not adjusted.
Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Denis V. Lunev [Tue, 13 Oct 2015 15:41:21 +0000 (18:41 +0300)]
qga: handle possible SIGPIPE in guest-file-write
qemu-ga should not exit on guest-file-write to pipe without read end
but proper error code should be returned. The behavior of the
spawned process should be default thus SIGPIPE processing should be
reset to default after fork() but before exec().
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Yuri Pudgorodskiy [Tue, 13 Oct 2015 15:41:20 +0000 (18:41 +0300)]
qga: guest exec functionality
Guest-exec rewritten in platform-independent style with glib spawn.
Child process is spawn asynchronously and exit status can later
be picked up by guest-exec-status command.
stdin/stdout/stderr of the child now is redirected to /dev/null
Later we will add ability to specify stdin in guest-exec command
and to get collected stdout/stderr with guest-exec-status.
Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
CC: Michael Roth <mdroth@linux.vnet.ibm.com>
* use g_new0 in place of g_malloc for GuestExec struct
* commit msg spelling fixes
* s/inp-data/input-data
* document capture-input mode as false by default
* use GetProcessId() for pids on w32 instead of casting HANDLE
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Denis V. Lunev [Tue, 13 Oct 2015 15:41:19 +0000 (18:41 +0300)]
qga: drop guest_file_init helper and replace it with static initializers
This just makes code shorter and better.
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Yuri Pudgorodskiy <yur@virtuozzo.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Marc-André Lureau [Fri, 2 Oct 2015 12:58:18 +0000 (14:58 +0200)]
tests: add a local test for guest agent
Add some local guest agent tests, as it is better than nothing, only
when CONFIG_POSIX (using unix sockets).
With the QGA_TEST_SIDE_EFFECTING environment variable, it will include
tests with side effects, such as freezing/thawing the FS or changing the
time.
(a better test would involve a managed VM (or container), but it might
be better to leave that off to autotest/avocado)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
* use mkdtemp() in placeof g_mkdtemp() for glib 2.22 compat
* drop redundant/conflicting compat defines for
g_assert_{true,false}, since glib-compat has them now.
* build fixes for OSX: use PRId64 instead of glib formats, drop
g_spawn_default usage for glib compat
* assert connect_qga() doesn't fail
* only enable test-qga for linux hosts
* allow get-memory-block-info* to fail
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Michael Roth [Mon, 19 Oct 2015 21:38:25 +0000 (16:38 -0500)]
qga: guest-get-memory-blocks shouldn't fail for unexposed memory blocks
Some guests don't expose memory blocks via sysfs at all. This
shouldn't be a failure, instead just return an empty list. For
other access failures we still report an error.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Marc-André Lureau [Fri, 2 Oct 2015 12:58:17 +0000 (14:58 +0200)]
glib-compat: add 2.38/2.40/2.46 asserts
Those are mostly useful for writing tests.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Claudio Fontana <claudio.fontana@huawei.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Marc-André Lureau [Fri, 2 Oct 2015 12:58:16 +0000 (14:58 +0200)]
qtest: add a few fd-level qmp helpers
Add a few functions to interact with qmp via a simple fd.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Marc-André Lureau [Fri, 2 Oct 2015 12:58:15 +0000 (14:58 +0200)]
qga: do not override configuration verbosity
Move the default verbosity settings before loading the configuration
file, or it will overwrite it. Found thanks to writing qga tests :)
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Marc-André Lureau [Fri, 2 Oct 2015 12:58:14 +0000 (14:58 +0200)]
qga: add QGA_CONF environment variable
Having a environment variable allows to override default configuration
path, useful for testing. Note that this can't easily be an argument,
since loading config is done before parsing the arguments.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Markus Armbruster [Mon, 14 Sep 2015 11:50:44 +0000 (13:50 +0200)]
qga: Use g_new() & friends where that makes obvious sense
g_new(T, n) is neater than g_malloc(sizeof(T) * n). It's also safer,
for two reasons. One, it catches multiplication overflowing size_t.
Two, it returns T * rather than void *, which lets the compiler catch
more type errors.
This commit only touches allocations with size arguments of the form
sizeof(T). Same Coccinelle semantic patch as in commit b45c03f.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Michael Roth [Mon, 7 Sep 2015 23:47:05 +0000 (18:47 -0500)]
build: qemu-ga: add 'qemu-ga' build target for w32
Currently POSIX builds rely on 'qemu-ga' target to do qga-only
distributable build. On w32, as with most standalone binary targets,
we rely on 'qemu-ga.exe' target.
Unlike with POSIX, qemu-ga for w32 has a number of related targets
such as VSS DLL and MSI package. We can do the full distributable
qga-only build on w32 with:
make qemu-ga.exe
or:
make msi
To make that work, we tie VSS dependencies onto qemu-ga.exe.
However, in reality the DLL isn't part of the binary, so we use a
filter to pull them out of the LINK recipe, which attempts to link
against prereqs for binary targets. Additionally, it could be argued
that VSS is a separate distributable, and shouldn't be implied by
qemu-ga.exe binary target.
To avoid this, we can tie the VSS dependencies only to the 'msi'
target, but that would make it impossible to do a qga-only build of
the w32 distributable without building the 'msi' package, which was
supported in the past.
An alternative approach is to add a new target to build the whole
distributable. w32 allows us to use the same build target we use
on POSIX, 'qemu-ga', since the current binary-only target on w32
is 'qemu-ga.exe'.
To further simplify the build, we also make 'qemu-ga' build the MSI
package if the appropriate ./configure options are set, making the
full qga-only build the same on both POSIX and w32: `make qemu-ga`
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Peter Maydell [Mon, 19 Oct 2015 11:13:27 +0000 (12:13 +0100)]
Merge remote-tracking branch 'remotes/sstabellini/tags/2015-10-19-tag' into staging
Xen 2015-10-19
# gpg: Signature made Mon 19 Oct 2015 11:24:05 BST using RSA key ID
70E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"
* remotes/sstabellini/tags/2015-10-19-tag:
xen-platform: Ensure xen is enabled when initializing
pc: Require xen when initializing xenfv machine
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Eduardo Habkost [Mon, 28 Sep 2015 20:01:24 +0000 (17:01 -0300)]
xen-platform: Ensure xen is enabled when initializing
The xen-platform code crashes on reset if the xen backend is not
initialized, because it calls xc_hvm_set_mem_type(). Ensure xen-platform
won't be created without initializing the xen backend.
The assert can't be triggered by the user because the device is not
hotpluggable, and the only code creating it (at pc_xen_hvm_init())
already checks xen_enabled().
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Eduardo Habkost [Mon, 28 Sep 2015 20:01:23 +0000 (17:01 -0300)]
pc: Require xen when initializing xenfv machine
Without this check, the xen-platform device will crash on reset
if using the accel option with anything other than xen (e.g.
"-machine xenfv,accel=kvm").
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Peter Maydell [Mon, 19 Oct 2015 09:52:39 +0000 (10:52 +0100)]
Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging
* KVM page size fix for PPC
* Support for Linux 4.4's new Hyper-V features
* Eliminate g_slice from areas I maintain
* checkpatch fix
* Peter's cpu_reload_memory_map() cleanups
* More changes to MAINTAINERS
* Require Python 2.6
* chardev creation fixes
* PCI requester id for ARM KVM
* cleanups and doc fixes
* Allow customization of the Hyper-V vendor id
# gpg: Signature made Mon 19 Oct 2015 09:13:10 BST using RSA key ID
78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg: aka "Paolo Bonzini <pbonzini@redhat.com>"
* remotes/bonzini/tags/for-upstream: (49 commits)
kvm: Allow the Hyper-V vendor ID to be specified
kvm: Move x86-specific functions into target-i386/kvm.c
kvm: Pass PCI device pointer to MSI routing functions
hw/pci: Introduce pci_requester_id()
kvm: Make KVM_CAP_SIGNAL_MSI globally available
doc/rcu: fix g_free_rcu() usage example
qemu-char: cleanup after completed conversion to cd->create
qemu-char: convert ringbuf backend to data-driven creation
qemu-char: convert vc backend to data-driven creation
qemu-char: convert spice backend to data-driven creation
qemu-char: convert console backend to data-driven creation
qemu-char: convert stdio backend to data-driven creation
qemu-char: convert testdev backend to data-driven creation
qemu-char: convert braille backend to data-driven creation
qemu-char: convert msmouse backend to data-driven creation
qemu-char: convert mux backend to data-driven creation
qemu-char: convert null backend to data-driven creation
qemu-char: convert pty backend to data-driven creation
qemu-char: convert UDP backend to data-driven creation
qemu-char: convert socket backend to data-driven creation
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 19 Oct 2015 09:06:56 +0000 (10:06 +0100)]
Merge remote-tracking branch 'remotes/kraxel/tags/pull-audio-
20151019-1' into staging
Remove macros IO_READ_PROTO and IO_WRITE_PROTO
# gpg: Signature made Mon 19 Oct 2015 09:19:21 BST using RSA key ID
D3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg: aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg: aka "Gerd Hoffmann (private) <kraxel@gmail.com>"
* remotes/kraxel/tags/pull-audio-
20151019-1:
Remove macros IO_READ_PROTO and IO_WRITE_PROTO
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alex Williamson [Fri, 16 Oct 2015 15:38:22 +0000 (09:38 -0600)]
kvm: Allow the Hyper-V vendor ID to be specified
According to Microsoft documentation, the signature in the standard
hypervisor CPUID leaf at 0x40000000 identifies the Vendor ID and is
for reporting and diagnostic purposes only. We can therefore allow
the user to change it to whatever they want, within the 12 character
limit. Add a new hv-vendor-id option to the -cpu flag to allow
for this, ex:
-cpu host,hv_time,hv-vendor-id=KeenlyKVM
Link: http://msdn.microsoft.com/library/windows/hardware/hh975392
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Message-Id: <
20151016153356.28104.48612.stgit@gimli.home>
[Adjust error message to match the property name, use error_report. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Thomas Huth [Thu, 15 Oct 2015 18:30:20 +0000 (20:30 +0200)]
kvm: Move x86-specific functions into target-i386/kvm.c
The functions for checking xcrs, xsave and pit_state2 are
only used on x86, so they should reside in target-i386/kvm.c.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <
1444933820-6968-1-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pavel Fedin [Thu, 15 Oct 2015 13:44:52 +0000 (16:44 +0300)]
kvm: Pass PCI device pointer to MSI routing functions
In-kernel ITS emulation on ARM64 will require to supply requester IDs.
These IDs can now be retrieved from the device pointer using new
pci_requester_id() function.
This patch adds pci_dev pointer to KVM GSI routing functions and makes
callers passing it.
x86 architecture does not use requester IDs, but hw/i386/kvm/pci-assign.c
also made passing PCI device pointer instead of NULL for consistency with
the rest of the code.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Message-Id: <
ce081423ba2394a4efc30f30708fca07656bc500.
1444916432.git.p.fedin@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pavel Fedin [Thu, 15 Oct 2015 13:44:51 +0000 (16:44 +0300)]
hw/pci: Introduce pci_requester_id()
For GICv3 ITS implementation we are going to use requester IDs in KVM IRQ
routing code. This patch introduces reusable convenient way to obtain this
ID from the device pointer. The new function is now used in some places,
where the same calculation was used.
MemTxAttrs.stream_id also renamed to requester_id in order to better
reflect semantics of the field.
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Message-Id: <
5814bcb03a297f198e796b13ed9c35059c52f89b.
1444916432.git.p.fedin@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Pavel Fedin [Thu, 15 Oct 2015 13:44:50 +0000 (16:44 +0300)]
kvm: Make KVM_CAP_SIGNAL_MSI globally available
This capability is useful to determine whether we can use KVM ITS
emulation on ARM
Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Message-Id: <
ff4ccb09b837d37defd639b885526949a25276de.
1444916432.git.p.fedin@samsung.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Sergey Fedorov [Wed, 14 Oct 2015 15:46:44 +0000 (18:46 +0300)]
doc/rcu: fix g_free_rcu() usage example
The first argument of g_free_rcu() is a pointer to a structure. But
foo_reclaim is used as a function name in the previous example along
with &foo as a pointer to the structure being reclaimed. Make the
example consistent with the previous one.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-Id: <
1444837604-13712-1-git-send-email-serge.fdrv@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 12 Oct 2015 07:51:41 +0000 (09:51 +0200)]
qemu-char: cleanup after completed conversion to cd->create
All backends now return errors through Error*, so the "Failed to
create chardev" placeholder error can only be reached if the backend
is not available (and only from the chardev-add QMP command; instead,
the -chardev command line option fails earlier).
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:51:14 +0000 (15:51 +0200)]
qemu-char: convert ringbuf backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:49:06 +0000 (15:49 +0200)]
qemu-char: convert vc backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:45:47 +0000 (15:45 +0200)]
qemu-char: convert spice backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:42:04 +0000 (15:42 +0200)]
qemu-char: convert console backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:40:28 +0000 (15:40 +0200)]
qemu-char: convert stdio backend to data-driven creation
The backend now always returns errors via the Error* argument.
This avoids a double error message. Before:
qemu-system-x86_64: -chardev stdio,id=base: cannot use stdio with -daemonize
qemu-system-x86_64: -chardev stdio,id=base: Failed to create chardev
After:
qemu-system-x86_64: -chardev stdio,id=base: cannot use stdio with -daemonize
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:33:42 +0000 (15:33 +0200)]
qemu-char: convert testdev backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:31:26 +0000 (15:31 +0200)]
qemu-char: convert braille backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:29:15 +0000 (15:29 +0200)]
qemu-char: convert msmouse backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:27:24 +0000 (15:27 +0200)]
qemu-char: convert mux backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:24:29 +0000 (15:24 +0200)]
qemu-char: convert null backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:23:42 +0000 (15:23 +0200)]
qemu-char: convert pty backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:17:20 +0000 (15:17 +0200)]
qemu-char: convert UDP backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:15:53 +0000 (15:15 +0200)]
qemu-char: convert socket backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Tue, 29 Sep 2015 13:14:07 +0000 (15:14 +0200)]
qemu-char: convert pipe backend to data-driven creation
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Paolo Bonzini [Mon, 12 Oct 2015 07:49:28 +0000 (09:49 +0200)]
qemu-char: convert parallel backend to data-driven creation
Conversion to Error * brings better error messages; before:
qemu-system-x86_64: -chardev id=serial,backend=parallel,path=vl.c: Failed to create chardev
After:
qemu-system-x86_64: -chardev id=serial,backend=parallel,path=vl.c: not a parallel port: Inappropriate ioctl for device
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Nutan Shinde [Wed, 7 Oct 2015 16:32:54 +0000 (22:02 +0530)]
Remove macros IO_READ_PROTO and IO_WRITE_PROTO
Signed-off-by: Nutan Shinde <nutanshinde1992@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Peter Maydell [Fri, 16 Oct 2015 16:19:35 +0000 (17:19 +0100)]
hw/ide/ahci.c: Fix shift left into sign bit
Avoid undefined behaviour from shifting left into the sign bit:
hw/ide/ahci.c:551:36: runtime error: left shift of 255 by 24 places cannot be represented in type 'int'
(Unfortunately C's promotion rules mean that in the expression
"some_uint8_t_variable << 24" the LHS gets promoted to signed
int before shifting.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: John Snow <jsnow@redhat.com>
Peter Maydell [Sat, 17 Oct 2015 21:14:52 +0000 (22:14 +0100)]
Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging
Block layer patches
# gpg: Signature made Fri 16 Oct 2015 14:36:50 BST using RSA key ID
C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
* remotes/kevin/tags/for-upstream: (29 commits)
blkdebug: Don't confuse image as backing file
qcow2: Remove forward declaration of QCowAIOCB
qemu-nbd: always compile in --aio=MODE option
blockdev: always compile in -drive aio= parsing
raw-posix: warn about BDRV_O_NATIVE_AIO if libaio is unavailable
block: auto-generated node-names
util - add automated ID generation utility
blkverify: Fix BDS leak in .bdrv_open error path
block: Allow bdrv_unref_child(bs, NULL)
block: Remove bdrv_swap()
block: Add and use bdrv_replace_in_backing_chain()
blockjob: Store device name at job creation
block: Implement bdrv_append() without bdrv_swap()
block: Introduce parents list
block-backend: Add blk_set_bs()
block/io: Make bdrv_requests_pending() public
block: Split bdrv_move_feature_fields()
block: Manage backing file references in bdrv_set_backing_hd()
block: Convert bs->backing_hd to BdrvChild
block: Remove bdrv_open_image()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Sat, 17 Oct 2015 11:31:33 +0000 (12:31 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-
20151016' into staging
target-arm queue:
* break TBs after ISB instructions
* more support code for future implementation of EL2 and 64-bit EL3
* tell guest if KVM is enabled in SMBIOS version string
* implement OSLAR/OSLSR system registers
* provide better help text for Sharp PDA machine names
* rename imx25_pdk to imx25-pdk (since it has never been released
with the underscore-version name)
* fix MMIO writes in zynq_slcr
* implement MDCR_EL2
* virt: allow the guest to configure PCI BARs with zero PCI addresses
* fix breakpoint handling code
# gpg: Signature made Fri 16 Oct 2015 14:56:15 BST using RSA key ID
14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
* remotes/pmaydell/tags/pull-target-arm-
20151016:
target-arm: Fix CPU breakpoint handling
target-arm: Fix GDB breakpoint handling
target-arm: implement arm_debug_target_el()
hw/arm/virt: Allow zero address for PCI IO space
target-arm: Add MDCR_EL2
misc: zynq_slcr: Fix MMIO writes
arm: imx25-pdk: Fix machine name
target-arm: Provide model numbers for Sharp PDAs
target-arm: Implement AArch64 OSLAR/OSLSR_EL1 sysregs
hw/arm/virt: smbios: inform guest of kvm
target-arm: Avoid calling arm_el_is_aa64() function for unimplemented EL
target-arm: Break the TB after ISB to execute self-modified code correctly
target-arm: Add missing 'static' attribute
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 16 Oct 2015 18:11:59 +0000 (19:11 +0100)]
Merge remote-tracking branch 'remotes/pmaydell/tags/pull-cocoa-
20151016' into staging
cocoa queue:
* fixes for compiler warnings
* fix mouse cursor flickering
# gpg: Signature made Fri 16 Oct 2015 11:09:46 BST using RSA key ID
14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg: aka "Peter Maydell <pmaydell@gmail.com>"
# gpg: aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
* remotes/pmaydell/tags/pull-cocoa-
20151016:
ui/cocoa.m: blinky mouse cursor fix
ui/cocoa.m: addRemovableDevicesMenuItems() warning fix
ui/cocoa.m: eliminate normalWindow warning
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 16 Oct 2015 16:13:05 +0000 (17:13 +0100)]
Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2015-10-15' into staging
QAPI patches
# gpg: Signature made Thu 15 Oct 2015 07:40:46 BST using RSA key ID
EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg: aka "Markus Armbruster <armbru@pond.sub.org>"
* remotes/armbru/tags/pull-qapi-2015-10-15:
qapi: Track location that created an implicit type
qapi: Create simple union type member earlier
qapi: Lazy creation of array types
qapi: Don't use info as witness of implicit object type
qapi: Drop redundant args-member-array test
qapi: Drop redundant flat-union-reverse-define test
qapi: Drop redundant returns-int test
qapi: Move empty-enum to compile-time test
qapi: Drop redundant alternate-good test
qapi: Prepare for errors during check()
qapi: Use predicate callback to determine visit filtering
qapi: Fix regression with '-netdev help'
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Fri, 16 Oct 2015 14:47:59 +0000 (15:47 +0100)]
Merge remote-tracking branch 'remotes/juanquintela/tags/migration/
20151015' into staging
migration/next for
20151015
# gpg: Signature made Thu 15 Oct 2015 07:25:27 BST using RSA key ID
5872D723
# gpg: Good signature from "Juan Quintela <quintela@redhat.com>"
# gpg: aka "Juan Quintela <quintela@trasno.org>"
* remotes/juanquintela/tags/migration/
20151015:
migration: fix deadlock
migration: announce VM's new home just before VM is runnable
Migration: Generate the completed event only when we complete
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Sergey Fedorov [Tue, 13 Oct 2015 09:56:28 +0000 (12:56 +0300)]
target-arm: Fix CPU breakpoint handling
A QEMU breakpoint match is not definitely an architectural breakpoint
match. If an exception is generated unconditionally during translation,
it is hardly possible to ignore it in the debug exception handler.
Generate a call to a helper to check CPU breakpoints and raise an
exception only if any breakpoint matches architecturally.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Sergey Fedorov [Tue, 13 Oct 2015 09:56:27 +0000 (12:56 +0300)]
target-arm: Fix GDB breakpoint handling
GDB breakpoints have higher priority so they have to be checked first.
Should GDB breakpoint match, just return from the debug exception
handler.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Fam Zheng [Fri, 16 Oct 2015 10:46:04 +0000 (18:46 +0800)]
blkdebug: Don't confuse image as backing file
The word "backing file" nowadays refers to the backing_hd in the
external snapshot sense (i.e. bs->backing_hd), instead of the file sense
(bs->file). Correct the comment to use the right term.
Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Fri, 10 Jul 2015 20:19:23 +0000 (22:19 +0200)]
qcow2: Remove forward declaration of QCowAIOCB
This struct doesn't exist any more since commit
3fc48d09 in August 2011,
it's about time to remove its forward declaration.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Stefan Hajnoczi [Thu, 23 Jul 2015 12:48:36 +0000 (13:48 +0100)]
qemu-nbd: always compile in --aio=MODE option
The --aio=MODE option enables Linux AIO or Windows overlapped I/O.
The #ifdef CONFIG_LINUX_AIO was a layering violation that also prevented
Windows overlapped I/O from being used.
Now that raw-posix.c prints an error when Linux AIO has not been
compiled in, we can unconditionally compile the option into qemu-nbd.
After this patch qemu-nbd --aio=native works on Windows.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 23 Jul 2015 12:48:35 +0000 (13:48 +0100)]
blockdev: always compile in -drive aio= parsing
CONFIG_LINUX_AIO is an implementation detail of raw-posix.c. Don't
mention CONFIG_LINUX_AIO in blockdev.c. Let block drivers decide what
to do with BDRV_O_NATIVE_AIO. They may print an error if it is
unsupported.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Stefan Hajnoczi [Thu, 23 Jul 2015 12:48:34 +0000 (13:48 +0100)]
raw-posix: warn about BDRV_O_NATIVE_AIO if libaio is unavailable
raw-posix.c silently ignores BDRV_O_NATIVE_AIO if libaio is unavailable.
It is confusing when aio=native performance is identical to aio=threads
because the binary was accidentally built without libaio.
Print a deprecation warning if -drive aio=native is used with a binary
that does not support libaio. There are probably users using aio=native
who would be inconvenienced if QEMU suddenly refused to start their
guests. In the future this will become an error.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Jeff Cody [Mon, 12 Oct 2015 23:36:50 +0000 (19:36 -0400)]
block: auto-generated node-names
If a node-name is not specified, automatically generate the node-name.
Generated node-names will use the "block" sub-system identifier.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Jeff Cody [Mon, 12 Oct 2015 23:36:49 +0000 (19:36 -0400)]
util - add automated ID generation utility
Multiple sub-systems in QEMU may find it useful to generate IDs
for objects that a user may reference via QMP or HMP. This patch
presents a standardized way to do it, so that automatic ID generation
follows the same rules.
This patch enforces the following rules when generating an ID:
1.) Guarantee no collisions with a user-specified ID
2.) Identify the sub-system the ID belongs to
3.) Guarantee of uniqueness
4.) Spoiling predictability, to avoid creating an assumption
of object ordering and parsing (i.e., we don't want users to think
they can guess the next ID based on prior behavior).
The scheme for this is as follows (no spaces):
# subsys D RR
Reserved char --| | | |
Subsystem String ----| | |
Unique number (64-bit) --| |
Two-digit random number ---|
For example, a generated node-name for the block sub-system may look
like this:
#block076
The caller of id_generate() is responsible for freeing the generated
node name string with g_free().
Reviewed-by: John Snow <jsnow@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Signed-off-by: Jeff Cody <jcody@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kevin Wolf [Tue, 13 Oct 2015 12:15:53 +0000 (14:15 +0200)]
blkverify: Fix BDS leak in .bdrv_open error path
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Kevin Wolf [Tue, 13 Oct 2015 12:09:44 +0000 (14:09 +0200)]
block: Allow bdrv_unref_child(bs, NULL)
bdrv_unref() can be called with a NULL argument and doesn't do anything
then. Make bdrv_unref_child() consistent with it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Kevin Wolf [Wed, 16 Sep 2015 14:18:38 +0000 (16:18 +0200)]
block: Remove bdrv_swap()
bdrv_swap() is unused now. Remove it and all functions that have
no other users than bdrv_swap(). In particular, this removes the
.bdrv_rebind callbacks from block drivers.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 15 Sep 2015 09:58:23 +0000 (11:58 +0200)]
block: Add and use bdrv_replace_in_backing_chain()
This cleans up the mess we left behind in the mirror code after the
previous patch. Instead of using bdrv_swap(), just change pointers.
The interface change of the mirror job that callers must consider is
that after job completion, their local BDS pointers still point to the
same node now. qemu-img must change its code accordingly (which makes it
easier to understand); the other callers stays unchanged because after
completion they don't do anything with the BDS, but just with the job,
and the job is still owned by the source BDS.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Wed, 16 Sep 2015 11:34:54 +0000 (13:34 +0200)]
blockjob: Store device name at job creation
Some block jobs change the block device graph on completion. This means
that the device that owns the job and originally was addressed with its
device name may no longer be what the corresponding BlockBackend points
to.
Previously, the effects of bdrv_swap() ensured that the job was (at
least partially) transferred to the target image. Events that contain
the device name could still use bdrv_get_device_name(job->bs) and get
the same result.
After removing bdrv_swap(), this won't work any more. Instead, save the
device name at job creation and use that copy for QMP events and
anything else identifying the job.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Thu, 18 Jun 2015 12:09:57 +0000 (14:09 +0200)]
block: Implement bdrv_append() without bdrv_swap()
Remember all parent nodes and just change the pointers there instead of
swapping the contents of the BlockDriverState.
Handling of snapshot=on must be moved further down in bdrv_open()
because *pbs (which is the bs pointer in the BlockBackend) must already
be set before bdrv_append() is called. Otherwise bdrv_append() changes
the BB's pointer to the temporary snapshot, but bdrv_open() overwrites
it with the read-only original image.
We also need to be careful to update callers as the interface changes
(becomes less insane): Previously, the meaning of the two parameters was
inverted when bdrv_append() returns. Now any BDS pointers keep pointing
to the same node.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Thu, 17 Sep 2015 11:18:23 +0000 (13:18 +0200)]
block: Introduce parents list
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Thu, 17 Sep 2015 11:01:50 +0000 (13:01 +0200)]
block-backend: Add blk_set_bs()
It allows changing the BlockDriverState that a BlockBackend points to.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Wed, 16 Sep 2015 14:08:17 +0000 (16:08 +0200)]
block/io: Make bdrv_requests_pending() public
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Thu, 17 Sep 2015 10:33:26 +0000 (12:33 +0200)]
block: Split bdrv_move_feature_fields()
After bdrv_swap(), some fields must be moved back to their original BDS
to compensate for the effects that a swap of the contents of the objects
has while keeping the old addresses. Other fields must be moved back
because they should logically be moved and must stay on top
When replacing bdrv_swap() with operations changing the pointers in the
parents, we only need the latter and must avoid swapping the former.
Split the function accordingly.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 14 Sep 2015 13:33:33 +0000 (15:33 +0200)]
block: Manage backing file references in bdrv_set_backing_hd()
This simplifies the code somewhat, especially when dropping whole
backing file subchains.
The exception is the mirroring code that does adventurous things with
bdrv_swap() and in order to keep it working, I had to duplicate most of
bdrv_set_backing_hd() locally. We'll get rid again of this ugliness
shortly.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Wed, 17 Jun 2015 12:55:21 +0000 (14:55 +0200)]
block: Convert bs->backing_hd to BdrvChild
This is the final step in converting all of the BlockDriverState
pointers that block drivers use to BdrvChild.
After this patch, bs->children contains the full list of child nodes
that are referenced by a given BDS, and these children are only
referenced through BdrvChild, so that updating the pointer in there is
enough for changing edges in the graph.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 16 Jun 2015 14:23:54 +0000 (16:23 +0200)]
block: Remove bdrv_open_image()
It is unused now.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 16 Jun 2015 12:19:22 +0000 (14:19 +0200)]
block: Convert bs->file to BdrvChild
This patch removes the temporary duplication between bs->file and
bs->file_child by converting everything to BdrvChild.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 16 Jun 2015 09:29:22 +0000 (11:29 +0200)]
quorum: Convert to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 16 Jun 2015 09:13:47 +0000 (11:13 +0200)]
blkverify: Convert s->test_file to BdrvChild
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 15 Jun 2015 11:50:20 +0000 (13:50 +0200)]
vmdk: Use BdrvChild instead of BDS for references to extents
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Mon, 15 Jun 2015 12:11:51 +0000 (14:11 +0200)]
block: Introduce BDS.file_child
Store the BdrvChild for bs->file. At this point, bs->file_child->bs just
duplicates the bs->file pointer. Later, it will completely replace it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Jeff Cody [Tue, 13 Oct 2015 00:18:07 +0000 (20:18 -0400)]
block: qemu-iotests - fix vmdk test 059.out
In commit
fe646693acc13ac48b98435d14149ab04dc597bc, the option
printout format changed.
This updates the VMDK test 059.out to the correct output.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Kashyap Chamarthy [Fri, 2 Oct 2015 12:12:34 +0000 (14:12 +0200)]
qmp-commands.hx: Update the supported 'transaction' operations
Although the canonical source of reference for QMP commands is
qapi-schema.json, for consistency's sake, update qmp-commands.hx to
state the list of supported transactionable operations, namely:
drive-backup
blockdev-backup
blockdev-snapshot-internal-sync
abort
block-dirty-bitmap-add
block-dirty-bitmap-clear
Also update the possible values for the "type" action array.
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Thu, 17 Sep 2015 14:33:06 +0000 (17:33 +0300)]
throttle: test that snapshots move the throttling configuration
If a snapshot is performed on a device that has I/O limits they should
be moved to the target image (the new active layer).
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Alberto Garcia [Mon, 28 Sep 2015 14:23:00 +0000 (17:23 +0300)]
iotests: disable core dumps in test 061
Commit
934659c460 disabled the supression of segmentation faults in
bash tests. The new output of test 061, however, assumes that a core
dump will be produced if a program aborts. This is not necessarily the
case because core dumps can be disabled using ulimit.
Since we cannot guarantee that abort() will produce a core dump, we
should use SIGKILL instead (that does not produce any) and update the
test output accordingly.
Signed-off-by: Alberto Garcia <berto@igalia.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Sergey Fedorov [Mon, 14 Sep 2015 10:53:48 +0000 (13:53 +0300)]
target-arm: implement arm_debug_target_el()
Implement debug exception routing according to ARM ARM D2.3.1 Pseudocode
description of routing debug exceptions.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Alexander Gordeev [Fri, 16 Oct 2015 10:14:54 +0000 (11:14 +0100)]
hw/arm/virt: Allow zero address for PCI IO space
Currently PCI IO address 0 is not allowed even though
the IO space starts from 0. This update makes PCI IO
address 0 usable.
CC: Peter Maydell <peter.maydell@linaro.org>
CC: Andrew Jones <drjones@redhat.com>
Signed-off-by: Alexander Gordeev <agordeev@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Sergey Fedorov [Fri, 16 Oct 2015 10:14:54 +0000 (11:14 +0100)]
target-arm: Add MDCR_EL2
Add the MDCR_EL2 register. We don't implement any of
the debug-related traps this register controls yet, so
currently it simply reads back as written.
Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Message-id:
1444383794-16767-1-git-send-email-serge.fdrv@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: tweaked commit message; moved non-dummy definition from
debug_cp_reginfo to el2_cp_reginfo.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Crosthwaite [Fri, 16 Oct 2015 10:14:53 +0000 (11:14 +0100)]
misc: zynq_slcr: Fix MMIO writes
The /4 for offset calculation in MMIO writes was happening twice giving
wrong write offsets. Fix.
While touching the code, change the if-else to be a short returning if
and convert the debug message to a GUEST_ERROR, which is more accurate
for this condition.
Cc: qemu-stable@nongnu.org
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Crosthwaite [Fri, 16 Oct 2015 10:14:53 +0000 (11:14 +0100)]
arm: imx25-pdk: Fix machine name
ARM uses dashes instead of underscores for machine names. Fix imx25_pdk
which has not seen a release yet (so there is no legacy yet).
Cc: Jean-Christophe Dubois <jcd@tribudubois.net>
Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Message-id:
1444445785-3648-1-git-send-email-crosthwaite.peter@gmail.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
[PMM: Added change to tests/ds1338-test.c to use new machine name]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Ryo ONODERA [Fri, 16 Oct 2015 10:14:53 +0000 (11:14 +0100)]
target-arm: Provide model numbers for Sharp PDAs
* For Collie, Akita, Spitz, Borzoi, Terrier and Tosa PDAs, provide
model numbers and manufacturer (Sharp) information.
Signed-off-by: Ryo ONODERA <ryo_on@yk.rim.or.jp>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Davorin Mista [Fri, 16 Oct 2015 10:14:53 +0000 (11:14 +0100)]
target-arm: Implement AArch64 OSLAR/OSLSR_EL1 sysregs
Added oslar_write function to OSLAR_EL1 sysreg, using a status variable
in ARMCPUState.cp15 struct (oslsr_el1). This variable is also linked
to the newly added read-only OSLSR_EL1 register.
Linux reads from this register during its suspend/resume procedure.
Signed-off-by: Davorin Mista <davorin.mista@aggios.com>
[PMM: folded a long line and tweaked a comment]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Andrew Jones [Fri, 16 Oct 2015 10:14:53 +0000 (11:14 +0100)]
hw/arm/virt: smbios: inform guest of kvm
ARM/AArch64 KVM guests don't have any way to identify
themselves as KVM guests (x86 guests use a CPUID leaf). Now, we
could discuss all sorts of reasons why guests shouldn't need to
know that, but then there's always some case where it'd be
nice... Anyway, now that we have SMBIOS tables in ARM guests,
it's easy for the guest to know that it's a QEMU instance. This
patch takes that one step further, also identifying KVM, when
appropriate. Again, we could debate why generally nothing
should care whether it's of type QEMU or QEMU/KVM, but again,
sometimes it's nice to know...
Signed-off-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Wei Huang <wei@redhat.com>
Message-id:
1443017892-15567-1-git-send-email-drjones@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Sergey Sorokin [Fri, 16 Oct 2015 10:14:52 +0000 (11:14 +0100)]
target-arm: Avoid calling arm_el_is_aa64() function for unimplemented EL
It is incorrect to call arm_el_is_aa64() function for unimplemented EL.
This patch fixes several attempts to do so.
Signed-off-by: Sergey Sorokin <afarallax@yandex.ru>
[PMM: Reworked several of the comments to be more verbose.]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Sergey Sorokin [Fri, 16 Oct 2015 10:14:52 +0000 (11:14 +0100)]
target-arm: Break the TB after ISB to execute self-modified code correctly
If any store instruction writes the code inside the same TB
after this store insn, the execution of the TB must be stopped
to execute new code correctly.
As described in ARMv8 manual D3.4.6 self-modifying code must do an
IC invalidation to be valid, and an ISB after it. So it's enough to end
the TB after ISB instruction on the code translation.
Also this TB break is necessary to take any pending interrupts immediately
after an ISB (as required by ARMv8 ARM D1.14.4).
Signed-off-by: Sergey Sorokin <afarallax@yandex.ru>
[PMM: tweaked commit message and comments slightly]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Stefan Weil [Fri, 16 Oct 2015 10:14:52 +0000 (11:14 +0100)]
target-arm: Add missing 'static' attribute
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Message-id:
1443213733-9807-1-git-send-email-sw@weilnetz.de
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>