This patch adds some infrastructure to handle suspend and resume to
qemu. First there are two functions to switch state and second there
is a suspend notifier:
* qemu_system_suspend_request is supposed to be called when the
guest asks for being be suspended, for example via ACPI.
* qemu_system_wakeup_request is supposed to be called on events
which should wake up the guest.
* qemu_register_suspend_notifier can be used to register a notifier
which will be called when the guest is suspended. Machine types
and device models can hook in there to modify state if needed.
* qemu_register_wakeup_notifier can be used to register a notifier
which will be called when the guest is woken up. Machine types
and device models can hook in there to modify state if needed.
* qemu_system_wakeup_enable can be used to enable/disable wakeup
events.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Stash away the option argument with add_device_config(), so we still
have its location when we get around to parsing it.
This doesn't improve any messages I can see just yet, but that'll
change shortly.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
These are -bt, -serial, -virtcon, -parallel, -debugcon, -usbdevice.
Improves messages emitted via proper error reporting interfaces. For
instance:
$ qemu-system-x86_64 -nodefaults -S -usb -usbdevice net:vlan=xxx
qemu-system-x86_64: Parameter 'vlan' expects a number
becomes:
qemu-system-x86_64: -usbdevice net:vlan=xxx: Parameter 'vlan' expects a number
Many more remain unimproved, because they're fprintf()ed. The next
few commits will take care of that.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Increase the width of the column used for the machine name in
the "-M ?" output from 10 to 20 spaces. This fixes the formatting
so it looks nice for architectures where a few of the machines
have overly long names. (Our current longest machine name is
"petalogix-s3adsp1800" with "realview-eb-mpcore" not far behind.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Make kernel, initrd, append be machine opts (ie -machine kernel=foo)
with the old plain command line arguments as legacy/convenience
equivalents.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Notifiers do not need to access both ends of the list, and using
a QLIST also simplifies the API.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* stefanha/trivial-patches:
linux-user: brk() debugging
virtio: Remove unneeded g_free() check in virtio_cleanup()
net: remove extra spaces in help messages
fmopl: Fix typo in function name
vl.c: Fix typo in variable name
ide: fix compilation errors when DEBUG_IDE is set
cpu-exec.c: Correct comment about this file and indentation cleanup
CODING_STYLE: Clarify style for enum and function type names
linux-user: fail execve() if env/args too big
Make the "machine" option list use list merging, so that multiple
-machine arguments (and the -enable-kvm argument) all merge together
into a single list. Drop the calls to qemu_opts_reset() which meant
that only the last -machine or -enable-kvm option had any effect.
This fixes the bug where "-enable-kvm -machine foo" would ignore
the '-enable-kvm' option, and "-machine foo -enable-kvm" would
ignore the '-machine foo' option.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andrzej Zaborowski <andrew.zaborowski@intel.com>
* kwolf/for-anthony:
AHCI: Masking of IRQs actually masks them
sheepdog: fix co_recv coroutine context
AHCI: Fix port reset race
rewrite QEMU_BUILD_BUG_ON
qcow2: Keep unknown header extension when rewriting header
qcow2: Update whole header at once
vpc: Round up image size during fixed image creation
vpc: Add support for Fixed Disk type
iSCSI: add configuration variables for iSCSI
qemu-io: add write -z option for bdrv_co_write_zeroes
qed: add .bdrv_co_write_zeroes() support
qed: replace is_write with flags field
block: perform zero-detection during copy-on-read
block: add .bdrv_co_write_zeroes() interface
cutils: extract buffer_is_zero() from qemu-img.c
Replace device_init() with generalized type_init().
While at it, unify naming convention: type_init([$prefix_]register_types)
Also, type_init() is a function, so add preceding blank line where
necessary and don't put a semicolon after the closing brace.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: malc <av1474@comtv.ru>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Fix a typo in a local variable name.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
This patch adds configuration variables for iSCSI to set
initiator-name to use when logging in to the target,
which type of header-digest to negotiate with the target
and username and password for CHAP authentication.
This allows specifying a initiator-name either from the command line
-iscsi initiator-name=iqn.2004-01.com.example:test
or from a configuration file included with -readconfig
[iscsi]
initiator-name = iqn.2004-01.com.example:test
header-digest = CRC32C|CRC32C-NONE|NONE-CRC32C|NONE
user = CHAP username
password = CHAP password
If you use several different targets, you can also configure this on a per
target basis by using a group name:
[iscsi "iqn.target.name"]
...
The configuration file can be read using -readconfig.
Example :
qemu-system-i386 -drive file=iscsi://127.0.0.1/iqn.ronnie.test/1
-readconfig iscsi.conf
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
In some cases initializing the alarm timers can lead to non-negligable
overhead from programs that link against qemu-tool.o. At least,
setting a max-resolution WinMM alarm timer via mm_start_timer() (the
current default for Windows) can increase the "tick rate" on Windows
OSs and affect frequency scaling, and in the case of tools that run
in guest OSs such has qemu-ga, the impact can be fairly dramatic
(+20%/20% user/sys time on a core 2 processor was observed from an idle
Windows XP guest).
This patch doesn't address the issue directly (not sure what a good
solution would be for Windows, or what other situations it might be
noticeable), but it at least limits the scope of the issue to programs
that "opt-in" to using the main-loop.c functions by only enabling alarm
timers when qemu_init_main_loop() is called, which is already required
to make use of those facilities, so existing users shouldn't be
affected.
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
So far we overwrite the machine options completely with defaults if no
accel=value is provided. More user friendly is to fill in only
unspecified options. The new qemu_opts_set_defaults enables this.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Allow to configure the MC146818 RTC via the new lost tick policy
property and replace rtc_td_hack with this mechanism.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* qemu-kvm/uq/master:
kvm: Activate in-kernel irqchip support
kvm: x86: Add user space part for in-kernel IOAPIC
kvm: x86: Add user space part for in-kernel i8259
kvm: x86: Add user space part for in-kernel APIC
kvm: x86: Establish IRQ0 override control
kvm: Introduce core services for in-kernel irqchip support
memory: Introduce memory_region_init_reservation
ioapic: Factor out base class for KVM reuse
ioapic: Drop post-load irr initialization
i8259: Factor out base class for KVM reuse
i8259: Completely privatize PicState
apic: Open-code timer save/restore
apic: Factor out base class for KVM reuse
apic: Introduce apic_report_irq_delivered
apic: Inject external NMI events via LINT1
apic: Stop timer on reset
kvm: Move kvmclock into hw/kvm folder
msi: Generalize msix_supported to msi_supported
hyper-v: initialize Hyper-V CPUID leaves.
hyper-v: introduce Hyper-V support infrastructure.
Conflicts:
Makefile.target
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Improve VGA selection logic, push check for device availabilty to vl.c.
Create the devices at board level unconditionally.
Remove now unused pci_try_create*() functions.
Make PCI VGA devices optional.
Reviewed-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
KVM is forced to disable the IRQ0 override when we run with in-kernel
irqchip but without IRQ routing support of the kernel. Set the fwcfg
value correspondingly. This aligns us with qemu-kvm.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Add option to use named socket for communicating between proxy helper
and qemu proxy FS. Access to socket can be given by using command line
options -u and -g.
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Add new proxy filesystem driver to add root privilege to qemu process.
It needs a helper process to be started by root user.
Following command line can be used to utilize proxy filesystem driver
-virtfs proxy,id=<id>,mount_tag=<tag>,socket_fd=<socket-fd>
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
This remove all conditional code from common code path and
make opt validation a FSDriver callback.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
qemu-kvm passes numa/SRAT topology information for smp_cpus to SeaBIOS. However
SeaBIOS always expects to setup max_cpus number of SRAT cpu entries
(MaxCountCPUs variable in build_srat function of Seabios). When qemu-kvm runs
with smp_cpus != max_cpus (e.g. -smp 2,maxcpus=4), Seabios will mistakenly use
memory SRAT info for setting up CPU SRAT entries for the offline CPUs. Wrong
SRAT memory entries are also created. This breaks NUMA in a guest.
Fix by setting up SRAT info for max_cpus in qemu-kvm.
Signed-off-by: Vasilis Liaskovitis <vasilis.liaskovitis@profitbricks.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
since commit f9b29ca03 included in release 2.31 (docs below say 2.32 but
that is not correct) and onwards g_thread_init is deprecated and calling
it is not required:
http://developer.gnome.org/glib/unstable/glib-Deprecated-Thread-APIs.html#g-thread-init
g_thread_init has been deprecated since version 2.32 and should not be
used in newly-written code. This function is no longer necessary. The
GLib threading system is automatically initialized at the start of your
program.
Fixes bulid failure when warnings are treated as errors on fedora 17.
I only tested the change to vl.c, and copy pasted to the two other
locations (couldn't decide if a wrapper for calling g_thread_init is
uglier).
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The peripheral[-anon] containers are initialized lazily but since they sit on
sysbus, they can not be created after realize. This was causing an abort() to
occur during hotplug if no -device option was used.
This was spotted by qemu-test::device-add.sh
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Only print options in the help output that are accepted by our arch.
This is less confusing for users and also for other programs that
consume the help output.
The options affected are:
-g and -prom-env only displayed on PPC or SPARC
-win2k-hack, -rtc-td-hack, -no-fd-bootchk, -no-acpi, -no-hpet,
-acpitable, -smbios only displayed on i386
-semihosting only displayed on ARM, M68K or XTENSA
-old-param only displayed on ARM
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
In vl.c and qemu-options.h we define macros and include qemu-options.def
in order to generate different content. Move the bulk of the def'ing and
undef'ing into a wrapper, this will make it cleaner when we add another
macro in the next patch.
AFAICS undefining GEN_DOCS services no purpose, but I've left it for now.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
In help() we do what boils down to:
printf("%s", "qemu");
This seems to be an artifact of be995c2764
("removed unused code"), which removed some ifdef'ery that used to print
a different name depending on CONFIG_SOFTMMU.
Instead print the actual program name, originally from argv[0].
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
strtosz_suffix() fails unless the size is followed by 0, whitespace or
','. Useless here, because we need to fail for any junk following the
size, even if it starts with whitespace or ','. Check manually.
Things like "-m 1024," are now caught.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
strtosz_suffix() fails unless the size is followed by 0, whitespace or
','. Useless here, because we need to fail for any junk following the
size, even if it starts with whitespace or ','. Check manually.
Things like
-smp 4 -numa "node,mem=1024,cpus=0-1" -numa "node,mem=1024 cpus=2-3"
are now caught. Before, the second -numa's argument was silently
interpreted as just "node,mem=1024".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
With -icount, The vm_clock is updated with help from TCG (it counts
instructions at 2^ICOUNT ns/instructions). With KVM, the instruction
count is not available so KVM cannot provide this help.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
machine defaults to find_default_machine(),
then gets overridden via -M and machine_parse().
If no -M is specified and find_default_machine() returns NULL
(when no machine compiled in), exit with an error.
Avoids a segfault when setting machine->max_cpus.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
g_strdup() can't fail, remove assertion. Assert its argument can't be
null, because that's not obvious (add_boot_device_path() ensures it).
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The caller of qemu_timedate_diff() does not expect that tm it passes to
the function will be modified, but mktime() is destructive and modifies
its argument. Pass a copy of tm to it and set tm_isdst so that mktime()
will not rely on it since its value may be outdated.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
GThread-ERROR **: GThread system may only be initialized once.
aborting...
Making the g_thread_init() call in vl.c conditional resolves an abort on
Mac OS X, where coroutine-gthread.c seems to call it before vl.c.
Reported-by: Juan Pineda <juan@logician.com>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Daniel P. Berrange <berrange@redhat.com>
This patch create a synthetic file system with mount tag
v_synth when -virtfs_synth command line option is specified
in qemu. The synthetic file system can be mounted in guest
using 9p using the below command line
mount -t 9p -oversion=9p2000.L,trans=virtio v_synth <mountpint>
Synthetic file system enabled different qemu subsystem to register
callbacks for read and write events from guest. The subsystem
can create directories and files in the synthetic file system as show
in ex below
qemu_v9fs_synth_mkdir(NULL, 0777, "test2", &node);
qemu_v9fs_synth_add_file(node, 0777, "testfile",
my_test_read, NULL, NULL);
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
A new fsdev parameter "readonly" is introduced to control accessing 9p export.
"readonly" can be used to specify the access type. By default "rw" access
is given to 9p export.
Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Previous commits dropped most qobjects usage from qemu modules
(now they are a low level interface used by the QAPI). However,
some modules still include the qemu-objects.h header file.
This commit drops qemu-objects.h from some of those modules
and includes qjson.h instead, which is what they actually need.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
It should be a matter of allowing the transition POSTMIGRATE ->
FINISH_MIGRATE, but it turns out that the VM won't do the
transition the second time because it's already stopped.
So this commit also adds vm_stop_force_state() which performs
the transition even if the VM is already stopped.
While there also allow other states to migrate.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
