Kevin Wolf [Fri, 15 Mar 2013 09:35:05 +0000 (10:35 +0100)]
qemu-option: Add qemu_opts_absorb_qdict()
This adds a function that adds all entries of a QDict to a QemuOpts if
the keys are known, and leaves only the rest in the QDict.
This way a single QDict of -drive options can be processed in multiple
places (generic block layer, block driver, backing file block driver,
etc.), where each part picks the options it knows. If at the end of the
process the QDict isn't empty, the user specified an invalid option.
Kevin Wolf [Fri, 15 Mar 2013 09:35:04 +0000 (10:35 +0100)]
block: Add options QDict to bdrv_open_common()
The options are passed down to the block drivers, which are supposed to
remove all options they have processed. Anything that is left over in
the end is an unknown option and results in an error.
Anthony Liguori [Thu, 14 Mar 2013 19:54:37 +0000 (14:54 -0500)]
Merge remote-tracking branch 'kraxel/chardev.5' into staging
* kraxel/chardev.5:
spice-qemu-char: Remove dead debugging code
spice-qemu-char: Fix name parameter issues after qapi-ifying
qemu-char.c: fix waiting for telnet connection message
Revert "hmp: Disable chardev-add and chardev-remove"
chardev: add udp support to qapi
chardev: add memory (ringbuf) support to qapi
chardev: add vc support to qapi
chardev: add spice support to qapi
chardev: add pipe support to qapi
chardev: add console support to qapi
chardev: switch pty init to qapi
chardev: switch parallel init to qapi
chardev: switch serial/tty init to qapi
chardev: add stdio support to qapi
chardev: switch file init to qapi
chardev: add braille support to qapi
chardev: add msmouse support to qapi
chardev: switch null init to qapi
chardev: add mux chardev support to qapi
chardev: add support for qapi-based chardev initialization
Anthony Liguori [Thu, 14 Mar 2013 19:50:58 +0000 (14:50 -0500)]
Merge remote-tracking branch 'afaerber/qom-cpu' into staging
# By Andreas Färber (16) and Igor Mammedov (1)
# Via Andreas Färber
* afaerber/qom-cpu:
target-lm32: Update VMStateDescription to LM32CPU
target-arm: Override do_interrupt for ARMv7-M profile
cpu: Replace do_interrupt() by CPUClass::do_interrupt method
cpu: Pass CPUState to cpu_interrupt()
exec: Pass CPUState to cpu_reset_interrupt()
cpu: Move halted and interrupt_request fields to CPUState
target-cris/helper.c: Update Coding Style
target-i386: Update VMStateDescription to X86CPU
cpu: Introduce cpu_class_set_vmsd()
cpu: Register VMStateDescription through CPUState
stubs: Add a vmstate_dummy struct for CONFIG_USER_ONLY
vmstate: Make vmstate_register() static inline
target-sh4: Move PVR/PRR/CVR into SuperHCPUClass
target-sh4: Introduce SuperHCPU subclasses
cpus: Replace open-coded CPU loop in qmp_memsave() with qemu_get_cpu()
monitor: Use qemu_get_cpu() in monitor_set_cpu()
cpu: Fix qemu_get_cpu() to return NULL if CPU not found
Anthony Liguori [Thu, 14 Mar 2013 19:50:30 +0000 (14:50 -0500)]
Merge remote-tracking branch 'mdroth/qga-pull-3-11-2013' into staging
# By Laszlo Ersek (3) and others
# Via Michael Roth
* mdroth/qga-pull-3-11-2013:
qga: implement qmp_guest_set_vcpus() for Linux with sysfs
qga: implement qmp_guest_get_vcpus() for Linux with sysfs
qga: introduce guest-get-vcpus / guest-set-vcpus with stubs
qga: add guest-set-time command
qga: add guest-get-time command
qemu-ga: use key-value store to avoid recycling fd handles after restart
qemu-ga: make guest-sync-delimited available during fsfreeze
qemu-ga: fix confusing GAChannelMethod comparison
qga: cast to int for DWORD type
Anthony Liguori [Thu, 14 Mar 2013 19:50:21 +0000 (14:50 -0500)]
Merge remote-tracking branch 'riku/linux-user-for-upstream' into staging
# By Peter Maydell (5) and others
# Via Riku Voipio
* riku/linux-user-for-upstream:
linux-user/syscall.c: Don't warn about unimplemented get_robust_list
linux-user: Implement accept4
linux-user: Implement sendfile and sendfile64
linux-user: make bogus negative iovec lengths fail EINVAL
linux-user: Fix layout of usage table to account for option text
linux-user: Add more sparc syscall numbers
linux-user: Support setgroups syscall with no groups
linux-user: fix futex strace of FUTEX_CLOCK_REALTIME
linux-user/syscall.c: handle FUTEX_WAIT_BITSET in do_futex
linux-user: improve print_fcntl()
linux-user: Add Alpha socket constants
It is impossible to set the debug parameter, so all the dprintf calls
are essentially nops. Since we've not needed the debug parameter in ages this
is not a problem, if it later turns out we do need some more debugging options
we can add more trace-points.
Hans de Goede [Wed, 13 Mar 2013 09:41:31 +0000 (10:41 +0100)]
spice-qemu-char: Fix name parameter issues after qapi-ifying
The strings passed in through the qapi calls are dynamic memory, since
we want to have them stick around longer then just the call to
qemu_chr_open_spice_* we need to strdup them.
Igor Mitsyanko [Sun, 10 Mar 2013 13:58:05 +0000 (17:58 +0400)]
qemu-char.c: fix waiting for telnet connection message
Current colon position in "waiting for telnet connection" message template
produces messages like:
QEMU waiting for connection on: telnet::127.0.0.16666,server
After moving a colon to the right, we will get a correct messages like:
QEMU waiting for connection on: telnet:127.0.0.1:6666,server
Gerd Hoffmann [Thu, 21 Feb 2013 10:39:12 +0000 (11:39 +0100)]
chardev: add support for qapi-based chardev initialization
This patch add support for a new way to initialize chardev devices.
Instead of calling a initialization function with a QemuOpts we will
now create a (qapi) ChardevBackend, optionally call a function to
fill ChardevBackend from QemuOpts, then go create the chardev using
the new qapi code path which is also used by chardev-add.
Gerd Hoffmann [Fri, 8 Mar 2013 10:42:24 +0000 (11:42 +0100)]
Add search path support for qemu data files.
This patch allows to specify multiple directories where qemu should look
for data files. To implement that the behavior of the -L switch is
slightly different now: Instead of replacing the data directory the
path specified will be appended to the data directory list. So when
specifiying -L multiple times all directories specified will be checked,
in the order they are specified on the command line, instead of just the
last one.
Additionally the default paths are always appended to the directory
data list. This allows to specify a incomplete directory (such as the
seabios out/ directory) via -L. Anything not found there will be loaded
from the default paths, so you don't have to create a symlink farm for
all the rom blobs.
For trouble-shooting a tracepoint has been added, logging which blob
has been loaded from which location.
Stefan Berger [Wed, 27 Feb 2013 17:47:54 +0000 (12:47 -0500)]
Add support for cancelling of a TPM command
This patch adds support for cancelling an executing TPM command.
In Linux for example a user can cancel a command through the TPM's
sysfs 'cancel' entry using
echo "1" > /sysfs/class/misc/tpm0/device/cancel
This patch propagates the cancellation of a command inside a VM
to the host TPM's sysfs entry.
It also uses the possibility to cancel the command before QEMU VM
shutdown or reboot, which helps in preventing QEMU from hanging while
waiting for the completion of the command.
To relieve higher layers or users from having to determine the TPM's
cancel sysfs entry, the driver searches for the entry in well known
locations.
Stefan Berger [Wed, 27 Feb 2013 17:47:53 +0000 (12:47 -0500)]
Add a TPM Passthrough backend driver implementation
This patch is based of off version 9 of Stefan Berger's patch series
"QEMU Trusted Platform Module (TPM) integration"
and adds a new backend driver for it.
This patch adds a passthrough backend driver for passing commands sent to the
emulated TPM device directly to a TPM device opened on the host machine.
Thus it is possible to use a hardware TPM device in a system running on QEMU,
providing the ability to access a TPM in a special state (e.g. after a Trusted
Boot).
This functionality is being used in the acTvSM Trusted Virtualization Platform
which is available on [1].
Some notes about the host TPM:
The TPM needs to be enabled and activated. If that's not the case one
has to go through the BIOS/UEFI and enable and activate that TPM for TPM
commands to work as expected.
It may be necessary to boot the kernel using tpm_tis.force=1 in the boot
command line or 'modprobe tpm_tis force=1' in case of using it as a module.
Stefan Berger [Wed, 27 Feb 2013 17:47:51 +0000 (12:47 -0500)]
Add a debug register
This patch uses the possibility to add a vendor-specific register and
adds a debug register useful for dumping the TIS's internal state. This
register is only active in a debug build (#define DEBUG_TIS).
Stefan Berger [Wed, 27 Feb 2013 17:47:50 +0000 (12:47 -0500)]
Add TPM (frontend) hardware interface (TPM TIS) to QEMU
This patch adds the main code of the TPM frontend driver, the TPM TIS
interface, to QEMU. The code is largely based on the previous implementation
for Xen but has been significantly extended to meet the standard's
requirements, such as the support for changing of localities and all the
functionality of the available flags.
Communication with the backend (i.e., for Xen or the libtpms-based one)
is cleanly separated through an interface which the backend driver needs
to implement.
Whenever the frontend has collected a complete packet, it will submit
a task to the backend, which then starts processing the command. Once
the result has been returned, the backend invokes a callback function
(tpm_tis_receive_cb()).
Testing the proper functioning of the different flags and localities
cannot be done from user space when running in Linux for example, since
access to the address space of the TPM TIS interface is not possible. Also
the Linux driver itself does not exercise all functionality. So, for
testing there is a fairly extensive test suite as part of the SeaBIOS patches
since from within the BIOS one can have full access to all the TPM's registers.
Stefan Berger [Wed, 27 Feb 2013 17:47:49 +0000 (12:47 -0500)]
Support for TPM command line options
This patch adds support for TPM command line options.
The command line options supported here are
./qemu-... -tpmdev passthrough,path=<path to TPM device>,id=<id>
-device tpm-tis,tpmdev=<id>,id=<other id>
and
./qemu-... -tpmdev help
where the latter works similar to -soundhw help and shows a list of
available TPM backends (for example 'passthrough').
Using the type parameter, the backend is chosen, i.e., 'passthrough' for the
passthrough driver. The interpretation of the other parameters along
with determining whether enough parameters were provided is pushed into
the backend driver, which needs to implement the interface function
'create' and return a TPMDriverOpts structure if the VM can be started or
'NULL' if not enough or bad parameters were provided.
Monitor support for 'info tpm' has been added. It for example prints the
following:
(qemu) info tpm
TPM devices:
tpm0: model=tpm-tis
\ tpm0: type=passthrough,path=/dev/tpm0,cancel-path=/sys/devices/pnp0/00:09/cancel
Andreas Färber [Sat, 2 Feb 2013 11:33:14 +0000 (12:33 +0100)]
target-arm: Override do_interrupt for ARMv7-M profile
Enable ARMCPUInfo to specify a custom class_init functions.
Introduce arm_v7m_class_init() and use it for "cortex-m3" model.
Instead of forwarding from arm_cpu_do_interrupt() to do_interrupt_v7m(),
override CPUClass::do_interrupt with arm_v7m_cpu_do_interrupt()
in arm_v7m_class_init().
Andreas Färber [Fri, 25 Jan 2013 16:37:28 +0000 (17:37 +0100)]
target-cris/helper.c: Update Coding Style
Reindent, add missing braces and drop/adjust whitespace.
Prepares for CPUArchState-to-CPUState field movements in
cpu_cris_handle_mmu_fault(), do_interruptv10() and do_interrupt().
The remaining functions were so minor that they can be fixed in one go.
Andreas Färber [Sun, 20 Jan 2013 19:23:22 +0000 (20:23 +0100)]
cpu: Register VMStateDescription through CPUState
In comparison to DeviceClass::vmsd, CPU VMState is split in two,
"cpu_common" and "cpu", and uses cpu_index as instance_id instead of -1.
Therefore add a CPU-specific CPUClass::vmsd field.
Unlike the legacy CPUArchState registration, rather register CPUState.
Andreas Färber [Fri, 15 Feb 2013 14:41:49 +0000 (15:41 +0100)]
cpus: Replace open-coded CPU loop in qmp_memsave() with qemu_get_cpu()
No functional change, just less usages of first_cpu and next_cpu fields.
env is passed to cpu_memory_rw_debug(), which in turn passes it to
target-specific cpu_get_phys_page_debug(). Changing both would be a
larger refactoring, so defer that by using env_ptr for now.
Andreas Färber [Fri, 15 Feb 2013 16:01:09 +0000 (17:01 +0100)]
monitor: Use qemu_get_cpu() in monitor_set_cpu()
No functional change, just a reduction of CPU loops.
The mon_cpu field is left untouched for now since changing that requires
a number of larger prerequisites, including cpu_synchronize_state() and
mon_get_cpu().
Igor Mammedov [Thu, 7 Mar 2013 18:12:43 +0000 (19:12 +0100)]
cpu: Fix qemu_get_cpu() to return NULL if CPU not found
Commit 55e5c2850 breaks CPU not found return value, and returns
CPU corresponding to the last non NULL env.
Fix it by returning CPU only if env is not NULL, otherwise CPU is
not found and function should return NULL.
Michael Roth [Fri, 1 Mar 2013 17:40:27 +0000 (11:40 -0600)]
qemu-ga: use key-value store to avoid recycling fd handles after restart
Hosts hold on to handles provided by guest-file-open for periods that can
span beyond the life of the qemu-ga process that issued them. Since these
are issued starting from 0 on every restart, we run the risk of issuing
duplicate handles after restarts/reboots.
As a result, users with a stale copy of these handles may end up
reading/writing corrupted data due to their existing handles effectively
being re-assigned to an unexpected file or offset.
We unfortunately do not issue handles as strings, but as integers, so a
solution such as using UUIDs can't be implemented without introducing a
new interface.
As a workaround, we fix this by implementing a persistent key-value store
that will be used to track the value of the last handle that was issued
across restarts/reboots to avoid issuing duplicates.
The store is automatically written to the same directory we currently
set via --statedir to track fsfreeze state, and so should be applicable
for stable releases where this flag is supported.
A follow-up can use this same store for handling fsfreeze state, but
that change is cosmetic and left out for now.
Signed-off-by: Michael Roth <[email protected]> Cc: [email protected]
* fixed guest_file_handle_add() return value from uint64_t to int64_t
Michael Roth [Fri, 1 Mar 2013 17:49:38 +0000 (11:49 -0600)]
qemu-ga: make guest-sync-delimited available during fsfreeze
We currently maintain a whitelist of commands that are safe during
fsfreeze. During fsfreeze, we disable all commands that aren't part of
that whitelist.
guest-sync-delimited meets the criteria for being whitelisted, and is
also required for qemu-ga clients that rely on guest-sync-delimited for
re-syncing the channel after a timeout.
Stefan Hajnoczi [Tue, 19 Feb 2013 14:12:34 +0000 (15:12 +0100)]
qemu-ga: fix confusing GAChannelMethod comparison
In commit 7868e26e5930f49ca942311885776b938dcf3b77
("qemu-ga: add initial win32 support") support was added for qemu-ga on
Windows using virtio-serial. Other channel methods (ISA serial and UNIX
domain socket) are not supported on Windows.
Lei Li [Mon, 28 Jan 2013 04:49:09 +0000 (12:49 +0800)]
qga: cast to int for DWORD type
This patch fixes a compiler warning when cross-build:
qga/service-win32.c: In function 'printf_win_error':
qga/service-win32.c:32:5: warning: format '%d' expects argument of type 'int',
but argument 3 has type 'DWORD' [-Wformat]
Anthony Liguori [Mon, 11 Mar 2013 13:30:34 +0000 (08:30 -0500)]
Merge remote-tracking branch 'quintela/migration.next' into staging
# By Paolo Bonzini (40) and others
# Via Juan Quintela
* quintela/migration.next: (46 commits)
page_cache: dup memory on insert
page_cache: fix memory leak
Fix cache_resize to keep old entry age
Fix page_cache leak in cache_resize
migration: inline migrate_fd_close
migration: eliminate s->migration_file
migration: move contents of migration_close to migrate_fd_cleanup
migration: move rate limiting to QEMUFile
migration: small changes around rate-limiting
migration: use qemu_ftell to compute bandwidth
migration: use QEMUFile for writing outgoing migration data
migration: use QEMUFile for migration channel lifetime
qemu-file: simplify and export qemu_ftell
qemu-file: add writable socket QEMUFile
qemu-file: check exit status when closing a pipe QEMUFile
qemu-file: fsync a writable stdio QEMUFile
migration: merge qemu_popen_cmd with qemu_popen
migration: use qemu_file_rate_limit consistently
migration: remove useless qemu_file_get_error check
migration: detect error before sleeping
...
Paolo Bonzini [Mon, 11 Mar 2013 10:31:26 +0000 (11:31 +0100)]
arm: fix compilation with CONFIG_FDT
A conflict was resolved the wrong way when merging commit 320ba5f (build:
always link device_tree.o into emulators if libfdt available, 2013-02-05).
This causes a build failure for the arm-softmmu target due to multiply
defined symbol.
Peter Maydell [Fri, 8 Feb 2013 04:34:54 +0000 (04:34 +0000)]
linux-user/syscall.c: Don't warn about unimplemented get_robust_list
The nature of the kernel ABI for the get_robust_list and set_robust_list
syscalls means we cannot implement them in QEMU. Make get_robust_list
silently return ENOSYS rather than using the default "print message and
then fail ENOSYS" code path, in the same way we already do for
set_robust_list, and add a comment documenting why we do this.
This silences warnings which were being produced for emulating
even trivial programs like 'ls' in x86-64-on-x86-64.
Peter Maydell [Fri, 8 Feb 2013 07:58:41 +0000 (07:58 +0000)]
linux-user: make bogus negative iovec lengths fail EINVAL
If the guest passes us a bogus negative length for an iovec, fail
EINVAL rather than proceeding blindly forward. This fixes some of
the error cases tests for readv and writev in the LTP.
Peter Maydell [Thu, 14 Feb 2013 08:46:43 +0000 (08:46 +0000)]
linux-user: Fix layout of usage table to account for option text
The linux-user usage message attempts to line up the columns in
its table by calculating the maximum width of any item in them.
However for the 'Argument' column it was only accounting for the
length of the option switch (eg "-d"), not the additional example
text (eg "item[,...]"). This currently has no adverse effects
because the widest item in the column happens to be the argumentless
"-singlestep" option, but improving the "-d" option help to read
"-d item[,...]" exceeds that limit.
Fix this by correctly calculating maxarglen as the width of the
first column text including a possible option argument, and
adjusting its uses to match.
Peter Lieven [Mon, 25 Feb 2013 17:12:04 +0000 (19:12 +0200)]
page_cache: dup memory on insert
The page cache frees all data on finish, on resize and
if there is collision on insert. So it should be the caches
responsibility to dup the data that is stored in the cache.
Peter Lieven [Mon, 25 Feb 2013 17:12:03 +0000 (19:12 +0200)]
page_cache: fix memory leak
XBZRLE encoded migration introduced a MRU page cache
meachnism. Unfortunately, cached items where never freed in
case of a collision in the page cache on cache_insert().
This lead to out of memory conditions during XBZRLE migration
if the page cache was small and there where a lot of collisions
in the cache.
Paolo Bonzini [Fri, 22 Feb 2013 16:36:45 +0000 (17:36 +0100)]
migration: move rate limiting to QEMUFile
Rate limiting is now simply a byte counter; client call
qemu_file_rate_limit() manually to determine if they have to exit.
So it is possible and simple to move the functionality to QEMUFile.
This makes the remaining functionality of s->file redundant;
in the next patch we can remove it and write directly to s->migration_file.
Paolo Bonzini [Fri, 22 Feb 2013 16:36:44 +0000 (17:36 +0100)]
migration: small changes around rate-limiting
This patch extracts a few small changes from the next patch, which
are unrelated to adding generic rate-limiting functionality to
QEMUFile. Make migration_set_rate_limit a simple accessor, and
use qemu_file_set_rate_limit consistently. Also fix a typo where
INT_MAX should have been SIZE_MAX.
Paolo Bonzini [Fri, 22 Feb 2013 16:36:36 +0000 (17:36 +0100)]
migration: merge qemu_popen_cmd with qemu_popen
There is no reason for outgoing exec migration to do popen manually
anymore (the reason used to be that we needed the FILE* to make it
non-blocking). Use qemu_popen_cmd.
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