Anthony Liguori [Mon, 12 Dec 2011 20:29:36 +0000 (14:29 -0600)]
qdev: add explicitly named devices to the root complex
We first add a 'peripheral' container to the root device that we add user
created devices to. This provides all user created devices with a unique and
isolated namespace.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 12 Dec 2011 20:29:35 +0000 (14:29 -0600)]
qom: qom_{get, set} monitor commands (v2)
This allows clients to read and write device model properties through QMP. QAPI
doesn't support Visitor types yet and these commands are special in that they
don't work with fixed types.
I've added a documentation stub to qapi-schema.json so we can keep consistency
there.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 12 Dec 2011 20:29:32 +0000 (14:29 -0600)]
qom: add link properties (v2)
Links represent an ephemeral relationship between devices. They are meant to
replace the qdev concept of busses by allowing more informal relationships
between devices.
Links are fairly limited in their usefulness without implementing QOM-style
subclassing and interfaces.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 12 Dec 2011 20:29:30 +0000 (14:29 -0600)]
qdev: provide a path resolution (v2)
There are two types of supported paths--absolute paths and partial paths.
Absolute paths are derived from the root device and can follow child<> or
link<> properties. Since they can follow link<> properties, they can be
arbitrarily long. Absolute paths look like absolute filenames and are prefixed
with a leading slash.
Partial paths are look like relative filenames. They do not begin with a
prefix. The matching rules for partial paths are subtle but designed to make
specifying devices easy. At each level of the composition tree, the partial
path is matched as an absolute path. The first match is not returned. At
least two matches are searched for. A successful result is only returned if
only one match is founded. If more than one match is found, a flag is returned
to indicate that the match was ambiguous.
At the end of the day, partial path support means that if you create a device
called 'ide0', you can just say 'ide0' as the path name and it will Just Work.
If we internally create a device called 'i440fx', you can just say 'i440fx' and
it will Just Work and long as you don't do anything silly.
A management tool should probably always use absolute paths since then they
don't have to deal with the possibility of ambiguity.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 12 Dec 2011 20:29:28 +0000 (14:29 -0600)]
qom: introduce root device
This is based on Jan's suggestion for how to do unique naming. The root device
is the root of composition. All devices are reachable via child<> links from
this device.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 12 Dec 2011 20:29:27 +0000 (14:29 -0600)]
qom: register legacy properties as new style properties (v2)
Expose all legacy properties through the new QOM property mechanism. The qdev
property types are exposed through the 'legacy<>' namespace. They are always
visited as strings since they do their own string parsing.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Anthony Liguori [Mon, 12 Dec 2011 20:29:26 +0000 (14:29 -0600)]
qom: add new dynamic property infrastructure based on Visitors (v2)
qdev properties are settable only during construction and static to classes.
This isn't flexible enough for QOM.
This patch introduces a property interface for qdev that provides dynamic
properties that are tied to objects, instead of classes. These properties are
Visitor based instead of string based too.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Sat, 10 Dec 2011 16:35:31 +0000 (16:35 +0000)]
tcg: make tcg_const_ptr actually accept a pointer argument
Make tcg_const_ptr() include a cast so that you can pass it a
pointer. This allows us to drop the casts we had in all the places
that use this macro.
Acked-by: Andreas Färber <andreas.faerber@web.de> Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Paolo Bonzini [Mon, 12 Dec 2011 16:21:34 +0000 (17:21 +0100)]
ccid: make threads joinable
Destroying a mutex that another thread might have just unlocked
is racy. It usually works, but you cannot do that in general and
can lead to deadlocks or segfaults. Change ccid to use joinable
threads instead.
(Also, qemu_mutex_init/qemu_cond_init were missing).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Paolo Bonzini [Mon, 12 Dec 2011 16:21:33 +0000 (17:21 +0100)]
qemu-thread: implement joinable threads for Win32
Rewrite the handshaking between qemu_thread_create and the
win32_start_routine, so that the thread can be joined without races.
Similar handshaking is done now between qemu_thread_exit and
qemu_thread_join.
This also simplifies how QemuThreads are initialized.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Jan Kiszka [Mon, 12 Dec 2011 16:21:32 +0000 (17:21 +0100)]
qemu-thread: implement joinable threads for POSIX
Allow to control if a QEMU thread is created joinable or not. Make it
not joinable by default to avoid that we keep the associated resources
around when terminating a thread without joining it (what we couldn't do
so far for obvious reasons).
The audio subsystem will need the join feature when converting it to
QEMU threading/locking abstractions, so provide that service.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Jan Kiszka [Mon, 12 Dec 2011 16:21:31 +0000 (17:21 +0100)]
qemu-thread: add API for joinable threads
Split from Jan's original qemu-thread-posix.c patch. No semantic change,
just introduce the new API that POSIX and Win32 implementations will
conform to.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Stefan Hajnoczi [Mon, 12 Dec 2011 12:11:41 +0000 (12:11 +0000)]
syborg: drop support for Symbian Virtual Platform
The Symbian Virtual Platform was an ARM-based development and debugging
board. Since Symbian has been disbanded and the code is no longer being
used it can now be removed.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Stefan Hajnoczi [Wed, 7 Dec 2011 15:01:49 +0000 (15:01 +0000)]
net: take ownership of fd in socket init functions
Today net/socket.c has no consistent policy for closing the socket file
descriptor when initialization fails. This means we leak the file
descriptor in some cases or we could also try to close it twice.
Make error paths consistent by taking ownership of the file descriptor
and closing it on error.
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Michael Roth [Wed, 7 Dec 2011 04:03:43 +0000 (22:03 -0600)]
guest agent: add supported command list to guest-info RPC
Not that there is blacklisting functionality we can no longer infer
the agent's capabilities via version. This patch extends the current
guest-info RPC to also return a list of dictionaries containing the name
of each supported RPC, along with a boolean indicating whether or not
the command has been disabled by a guest administrator/distro.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This adds a command-line option, -b/--blacklist, that accepts a
comma-seperated list of RPCs to disable, or prints a list of
available RPCs if passed "?".
In consequence this also adds general blacklisting and RPC listing
facilities to the new QMP dispatch/registry facilities, should the
QMP monitor ever have a need for such a thing.
Ideally, to avoid support/compatability issues in the future,
blacklisting guest agent functionality will be the exceptional
case, but we add the functionality here to handle guest administrators
with specific requirements.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Eduardo Habkost [Thu, 10 Nov 2011 12:41:43 +0000 (10:41 -0200)]
qemu_fclose: return last_error if set (v3)
This will make sure no error will be missed as long as callers always
check for qemu_fclose() return value. For reference, this is the
complete list of qemu_fclose() callers:
- exec_close(): already fixed to check for negative values, not -1
- migrate_fd_cleanup(): already fixed to consider only negative values
as error, not any non-zero value
- exec_accept_incoming_migration(): no return value check (yet)
- fd_accept_incoming_migration(): no return value check (yet)
- tcp_accept_incoming_migration(): no return value check (yet)
- unix_accept_incoming_migration(): no return value check (yet)
- do_savevm(): no return value check (yet)
- load_vmstate(): no return value check (yet)
Changes v1 -> v2:
- Add small comment about the need to return previously-spotted errors
Changes v2 -> v3:
- Add braces to "if" statements to match coding style
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Eduardo Habkost [Thu, 10 Nov 2011 12:41:42 +0000 (10:41 -0200)]
migrate_fd_cleanup: accept any negative qemu_fclose() value as error
Also, we now return the qemu_fclose() value unchanged to the caller. For
reference, the migrate_fd_cleanup() callers are the following:
- migrate_fd_completed(): any negative value is considered an
error, so the change is OK.
- migrate_fd_error(): doesn't check the migrate_fd_cleanup() return value
- migrate_fd_cancel(): doesn't check the migrate_fd_cleanup() return
value
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Eduardo Habkost [Thu, 10 Nov 2011 12:41:41 +0000 (10:41 -0200)]
exec_close(): accept any negative value as qemu_fclose() error
Note that we don't return the unchanged return value back yet, because
we need to change all qemu_fclose() callers to accept any positive value
as success.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Fri, 4 Nov 2011 01:03:38 +0000 (12:03 +1100)]
Remove unnecessary casts from PCI DMA code in usb-uhci
This patch removes some unnecessary casts in the usb-uhci device,
introduced by commit fff23ee9a5de74ab111b3cea9eec56782e7d7c50
'usb-uhci: Use PCI DMA stub functions'.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Fri, 4 Nov 2011 01:03:37 +0000 (12:03 +1100)]
Remove unnecessary casts from PCI DMA code in usb-ehci
This patch removes some unnecessary casts in the usb-ehci device,
introduced by commit 68d553587c0aa271c3eb2902921b503740d775b6
'usb-ehci: Use PCI DMA stub functions'.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Fri, 4 Nov 2011 01:03:36 +0000 (12:03 +1100)]
Remove unnecessary casts from PCI DMA code in rtl8139
This patch removes some unnecessary casts in the rtl8139 device,
introduced by commit 3ada003aee2004d24f23b9cd6f4eda87d9601ddb
'rtl8139: Use PCI DMA stub functions'.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Fri, 4 Nov 2011 01:03:35 +0000 (12:03 +1100)]
Remove unnecessary casts from PCI DMA code in lsi53c895a
This patch removes some unnecessary casts in the lsi53c895a device,
introduced by commit 9ba4524cda1348cbe741535f77815dca6a57da05
'lsi53c895a: Use PCI DMA stub functions'.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Fri, 4 Nov 2011 01:03:34 +0000 (12:03 +1100)]
Remove unnecessary casts from PCI DMA code in PCI IDE
This patch removes some unnecessary casts in the PCI IDE device,
introduced by commit 552908fef5b67ad9d96b76d7cb8371ebc26c9bc8
'PCI IDE: Use PCI DMA stub functions'.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Fri, 4 Nov 2011 01:03:33 +0000 (12:03 +1100)]
Remove unnecessary casts from PCI DMA code in e1000
This patch removes some unnecessary casts in the e1000 device,
introduced by commit 62ecbd353d25e62c4a6c327ea88ba5404e13507a 'e1000:
Use PCI DMA stub functions'.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
David Gibson [Fri, 4 Nov 2011 01:03:32 +0000 (12:03 +1100)]
Remove unnecessary casts from PCI DMA code in eepro100
This patch removes some unnecessary casts in the eepro100 device,
introduced by commit 16ef60c9a8eeee269f7cbc95219a431b1d7cbf29
'eepro100: Use PCI DMA stub functions'.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Peter Maydell [Mon, 5 Dec 2011 13:49:18 +0000 (13:49 +0000)]
hw/mpcore: Clean up mpcore_priv_read/write as they are now SCU only
The only code left in mpcore_priv_read and mpcore_priv_write is now
the implementation of the SCU registers. Clean up by renaming functions
and removing some unnecessary conditionals to make this clearer.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Mon, 5 Dec 2011 13:43:26 +0000 (13:43 +0000)]
hw/mpcore.c: Use the GIC memory regions for the CPU interface
Switch to using the GIC memory regions for the CPU interface
rather than hand implementing them as a subcase of mpcore_priv_read()
and mpcore_priv_write().
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Chubb [Mon, 12 Dec 2011 10:25:42 +0000 (10:25 +0000)]
Fix sp804 dual-timer
Properly implement dual-timer read/write for the sp804 dual timer module.
Based on ARM specs at
http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0271d/index.html
Signed-off-by: Hans Jang <hsjang@ok-labs.com> Signed-off-by: David Mirabito <david.mirabito@nicta.com.au> Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au> Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When the i386 cmpxchg instruction is executed with a memory operand
and the comparison result is "unequal", do the memory write before
changing the accumulator instead of the other way around, because
otherwise the new accumulator value will incorrectly be used in the
comparison when the instruction is restarted after a page fault.
This bug was originally reported on 2010-04-25 as
https://bugs.launchpad.net/qemu/+bug/569760
Stefan Weil [Sat, 3 Dec 2011 21:32:37 +0000 (22:32 +0100)]
w32: Disable buffering for log file
W32 does not support line buffering, but it supports unbuffered output.
Unbuffered output is better for writing to qemu.log than fully buffered
output because it also shows the latest log messages when an application
crash occurs.
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Instead of a GUI application, a console application is created.
This has disadvantages (there is always an empty console window) and
no obvious reason, so this patch removes the strange flag modification.
The SDL GUI applications still can be run from a console window
and even send stdout and stderr to that console by setting environment
variable SDL_STDIO_REDIRECT=no.
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Luiz Capitulino [Fri, 25 Nov 2011 18:15:19 +0000 (16:15 -0200)]
qapi: Convert blockdev_snapshot_sync
Unfortunately, this conversion required an additional change.
In the old QMP command, the 'snapshot-file' argument is specified as
optional. The idea is to take the snapshot internally if 'snapshot-file'
is not passed. However, internal snapshots are not supported yet so
the command returns a MissingParamater error if 'snapshot-file' is not
passed. Which makes the argument actually required and will cause
compatibility breakage if we change that in the future.
To fix this the QAPI converted blockdev_snapshot_sync command makes the
'snapshot-file' argument required. Again, in practice it's actually required,
so this is not incompatible.
If we do implement internal snapshots someday, we'll need a new argument
for it.
Luiz Capitulino [Fri, 25 Nov 2011 16:38:09 +0000 (14:38 -0200)]
qapi: Convert balloon
Note that the command being dropped uses the deprecated MONITOR_CMD_ASYNC
API, but the new command is a regular synchronous command. There shouldn't
be visible differences though, as MONITOR_CMD_ASYNC is internal only.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
projects / qemu-xen-4.2-testing.git / log