If we configure mlock=on and memory policy=bind at the same time,
It will consume lots of time for system to treat with memory,
especially when call mbind behind mlockall.
Adjust the place of calling mlockall, calling mbind before mlockall
can remarkably reduce the time of VM's startup.
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
On a system with a low limit of open files the initialization
of the event notifier could fail and QEMU exits without printing any
error information to the user.
The problem can be easily reproduced by enforcing a low limit of open
files and start QEMU with enough I/O threads to hit this limit.
The same problem raises, without the creation of I/O threads, while
QEMU initializes the main event loop by enforcing an even lower limit of
open files.
This commit adds an error message on failure:
# qemu [...] -object iothread,id=iothread0 -object iothread,id=iothread1
qemu: Failed to initialize event notifier: Too many open files in system
Signed-off-by: Chrysostomos Nanakos <cnanakos@grnet.gr>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
In error message, maxmem is printed in Dec but ram_size in Hex.
It is better to print them in same format.
Also use error_report instead of fprintf.
Reviewed-By: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
A bunch of bugfixes - some of these will make sense for 2.1.2
I put Cc: qemu-stable included where appropriate.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pci, pc, virtio, misc bugfixes
A bunch of bugfixes - some of these will make sense for 2.1.2
I put Cc: qemu-stable included where appropriate.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Thu 18 Sep 2014 19:52:18 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
pc: leave more space for BIOS allocations
virtio-pci: fix migration for pci bus master
vhost-user: fix VIRTIO_NET_F_MRG_RXBUF negotiation
virtio-pci: enable bus master for old guests
Revert "virtio: don't call device on !vm_running"
virtio-net: drop assert on vm stop
Revert "rng-egd: remove redundant free"
qdev: Move global validation to a single function
qdev: Rename qdev_prop_check_global() to qdev_prop_check_globals()
test-qdev-global-props: Test handling of hotpluggable and non-device types
test-qdev-global-props: Initialize not_used=true for all props
test-qdev-global-props: Run tests on subprocess
tests: disable global props test for old glib
test-qdev-global-props: Trivial comment fix
hw/machine: Free old values of string properties
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Ticks and clock offset used by CPU timers have to be saved in vmstate.
But vmstate for these fields registered only in icount mode.
Missing registration leads to breaking the continuity when vmstate is loaded.
This patch introduces new initialization function which fixes this.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Since commit c4090f8, -object options are no longer handled through
object_set_property(), so clean up -object leftovers by renaming the
function and dropping special-casing of qom-type and id properties.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
A bunch of bugfixes - these will make sense for 2.1.1
Initial Intel IOMMU support.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pci, pc fixes, features
A bunch of bugfixes - these will make sense for 2.1.1
Initial Intel IOMMU support.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Tue 02 Sep 2014 16:05:04 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream:
vhost_net: start/stop guest notifiers properly
pci: avoid losing config updates to MSI/MSIX cap regs
virtio-net: don't run bh on vm stopped
ioh3420: remove unused ioh3420_init() declaration
vhost_net: cleanup start/stop condition
intel-iommu: add IOTLB using hash table
intel-iommu: add context-cache to cache context-entry
intel-iommu: add supports for queued invalidation interface
intel-iommu: fix coding style issues around in q35.c and machine.c
intel-iommu: add Intel IOMMU emulation to q35 and add a machine option "iommu" as a switch
intel-iommu: add DMAR table to ACPI tables
intel-iommu: introduce Intel IOMMU (VT-d) emulation
iommu: add is_write as a parameter to the translate function of MemoryRegionIOMMUOps
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add Intel IOMMU emulation to q35 chipset and expose it to the guest.
1. Add a machine option. Users can use "-machine iommu=on|off" in the command
line to enable/disable Intel IOMMU. The default is off.
2. Accroding to the machine option, q35 will initialize the Intel IOMMU and
use pci_setup_iommu() to setup q35_host_dma_iommu() as the IOMMU function for
the pci bus.
3. q35_host_dma_iommu() will return different address space according to the
bus_num and devfn of the device.
Signed-off-by: Le Tan <tamlokveer@gmail.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
QOM backends can refer to chardevs, but not vice versa. So
process -chardev and -fsdev options before -object
This fixes the rng-egd backend to virtio-rng.
Reported-by: Amos Kong <akong@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
err is not freed after use, thus causing memory leak. This patch fixes
it.
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Cc: qemu-trivial@nongnu.org
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
imitate nearby code about using '!value' or 'value == NULL'
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The align option is used for activating the align algorithm
in order to synchronise the host clock and the guest clock.
Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Make icount parameter use QemuOpts style options in order
to easily add other suboptions.
Signed-off-by: Sebastian Tanase <sebastian.tanase@openwide.fr>
Tested-by: Camille Bégué <camille.begue@openwide.fr>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Replaced '_' with '-' to comply with QOM guidelines.
Made the conversion from command line to QMP in vl.c.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
If machine doesn't support memory hotplug then starting QEMU
with initial memory less than default will make QEMU exit with
following error message:
$QEMU -m 16 -M isapc
qemu-system-i386: "-memory 'slots|maxmem'" is not supported by: isapc
Set maxram_size to initial memory value before parsing
'maxmem' option allows to keep maxmem in sync with initial
memory size if no maxmem option was specified.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
CC: Bruce Rogers <brogers@suse.com>
Reviewed-By: Bruce Rogers <brogers@suse.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We have the experience that the guest doesn't stop successfully
though it was instructed to shut down.
The root cause may be not in QEMU mostly. However, QEMU is often
suspected at the beginning just because the issue occurred in
virtualization environment.
Therefore, we need to affirm that QEMU received the shutdown
request and raised ACPI irq from "virsh shutdown" command,
virt-manger or stopping QEMU process to the VM .
So that we can affirm the problems was belonged to the Guset OS
rather than the QEMU itself.
When we stop guests by "virsh shutdown" command or virt-manger,
or stopping QEMU process, qemu_system_powerdown_request() or
qemu_system_shutdown_request() is called. Then the below functions
in main_loop_should_exit() of Vl.c are called roughly in the
following order.
if (qemu_powerdown_requested())
qemu_system_powerdown()
monitor_protocol_event(QEVENT_POWERDOWN, NULL)
OR
if(qemu_shutdown_requested()}
monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
The tracepoint of monitor_protocol_event() already exists, but no
tracepoints are defined for qemu_system_powerdown_request() and
qemu_system_shutdown_request(). So this patch adds two tracepoints for
the two functions. We believe that it will become much easier to
isolate the problem mentioned above by these tracepoints.
Signed-off-by: Yang Zhiyong <yangzy.fnst@cn.fujitsu.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
This will be added (after QOMification) as the QOM parent.
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Based on "enable sparse node numbering" patch from Nishanth Aravamudan,
but without the code to actually support sparse node IDs. This just adds
the code to keep track of present/non-present nodes on the command-line,
without changing any behavior.
Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
[Rename max_numa_node to max_numa_nodeid -Eduardo]
[Initialize max_numa_nodeid to 0 -Eduardo]
[Use MAX() macro when setting max_numa_nodeid -Eduardo]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Don's patches to limit below-4g ram for pc
Marcel's pcie hotplug rewrite
Gabriel's changes to e1000 auto-negotiation
qemu char bugfixes by Stefan
misc bugfixes
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,pci,vhost,net fixes, enhancements
Don's patches to limit below-4g ram for pc
Marcel's pcie hotplug rewrite
Gabriel's changes to e1000 auto-negotiation
qemu char bugfixes by Stefan
misc bugfixes
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon 23 Jun 2014 16:25:19 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream: (23 commits)
xen-hvm: Handle machine opt max-ram-below-4g
pc & q35: Add new machine opt max-ram-below-4g
xen-hvm: Fix xen_hvm_init() to adjust pc memory layout
pcie: coding style tweak
hw/pcie: better hotplug/hotunplug support
hw/pcie: implement power controller functionality
hw/pcie: correct debug message
q35: Use PC_Q35_COMPAT_1_4 on pc-q35-1.4 compat_props
virtio-pci: Report an error when msix vectors init fails
qemu-char: avoid leaking unused fds in tcp_get_msgfds()
qemu-char: fix qemu_chr_fe_get_msgfd()
qapi/string-output-visitor: fix human output
e1000: factor out checking for auto-negotiation availability
e1000: move e1000_autoneg_timer() to after set_ics()
e1000: signal guest on successful link auto-negotiation
e1000: improve auto-negotiation reporting via mii-tool
e1000: emulate auto-negotiation during external link status change
qtest: fix vhost-user-test unbalanced mutex locks
qtest: fix qtest for vhost-user
libqemustub: add more stubs for qemu-char
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit adds a new command, '-dump-vmstate', that takes a filename
as an argument. When executed, QEMU will dump the vmstate information
for the machine type it's invoked with to the file, and quit.
The JSON-format output can then be used to compare the vmstate info for
different QEMU versions, specifically to test whether live migration
would break due to changes in the vmstate data.
A Python script that compares the output of such JSON dumps is included
in the following commit.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
This patch also eliminates build time warning caused by no caller
of monitor_qapi_event_throttle().
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This is a pc & q35 only machine opt.
If you add enough PCI devices then all mmio for them will not fit
below 4G which may not be the layout the user wanted. This allows
you to increase the below 4G address space that PCI devices can use
(aka decrease ram below 4G) and therefore in more cases not have any
mmio that is above 4G.
For example using "-machine pc,max-ram-below-4g=2G" on the command
line will limit the amount of ram that is below 4G to 2G.
Note: this machine option cannot be used to increase the amount
of ram below 4G.
Signed-off-by: Don Slutz <dslutz@verizon.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
MST: fix 32 bit
There is no existing comments for POWERDOWN in doc/qmp/qmp-events.txt,
so no change on it like other conversion patch.
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
This patch also eliminates build time warning caused by
QAPI_EVENT_MAX = 0.
Signed-off-by: Wenchao Xia <wenchaoqemu@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
As a "utility", it only supported ppc, and in a way that other
tcg backends provided directly in tcg-target.h. Removing this
disparity is easier now that the two ppc backends are merged.
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
Instead of getting backup auxv data from the env pointer given to main,
read it from /proc/self/auxv. We can do this at any time, so we're not
tied to any ordering wrt a call to qemu_init_auxval from main.
Tested-by: Tom Musta <tommusta@gmail.com>
Signed-off-by: Richard Henderson <rth@twiddle.net>
There patch protects vmstop_requested with a lock and introduces
qemu_system_vmstop_request_prepare.
Together with the new call to qemu_vmstop_requested in vm_start,
qemu_system_vmstop_request_prepare avoids a race where the VM could remain
stopped even though the iostatus of a block device has already been set
(for example).
qemu_system_vmstop_request_prepare however also lets the caller thread
delay observation of the state change until it has itself communicated
that change to the user. This delay avoids any possibility of a wrong
reordering of the BLOCK_IO_ERROR event and the subsequent STOP event.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
commit 4407ab055be995e64633322a78e64dfa376dc534
vl.c: extend -m option to support options for memory hotplug
prints ram_addr_t with u64 format, this is wrong for
some systems, in particular w32.
print ram_addr_t with RAM_ADDR_FMT to fix build on w32.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Follow the lines of the HMP implementation, using OptsVisitor
to parse the options. This gives access to OptsVisitor's
rich parsing of integer lists.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This option provides the infrastructure for binding guest NUMA nodes
to host NUMA nodes. For example:
-object memory-ram,size=1024M,policy=bind,host-nodes=0,id=ram-node0 \
-numa node,nodeid=0,cpus=0,memdev=ram-node0 \
-object memory-ram,size=1024M,policy=interleave,host-nodes=1-3,id=ram-node1 \
-numa node,nodeid=1,cpus=1,memdev=ram-node1
The option replaces "-numa node,mem=".
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: conflict resolution
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add the numa_info structure to contain the numa nodes memory,
VCPUs information and the future added numa nodes host memory
policies.
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
[Fix hw/ppc/spapr.c - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
MST: comment tweaks
Add following parameters:
"slots" - total number of hotplug memory slots
"maxmem" - maximum possible memory
"slots" and "maxmem" should go in pair and "maxmem" should be greater
than "mem" for memory hotplug to be enabled.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
MST: fix build on 32 bit
memory allocated for guest before QEMU is daemonized and then mapped
later in guest's address space after it is daemonized, leads to EPT
violation and QEMU aborts.
To avoid this and similar issues switch to daemonized mode early
before applying/processing other options.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add object to /objects before calling user_creatable_complete()
handler, so that object might be able to call
object_get_canonical_path() in its completion handler.
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Acked-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
"Init" and "uninit" suggest the functions don't allocate / free
storage. But they do.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Benoit Canet <benoit@irqsave.net>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Adds support to compile QEMU with multiple tracing backends at the same time.
For example, you can compile QEMU with:
$ ./configure --enable-trace-backends=ftrace,dtrace
Where 'ftrace' can be handy for having an in-flight record of events, and 'dtrace' can be later used to extract more information from the system.
This patch allows having both available without recompiling QEMU.
Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
new tests for SMBIOS
SMBIOS fixes
pc, pci fixes
qdev patches stayed on list for a month with no review,
as I told people on KVM forum I'm merging stuch patches
if they look fine.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc,pci,virtio,qdev fixes, tests
new tests for SMBIOS
SMBIOS fixes
pc, pci fixes
qdev patches stayed on list for a month with no review,
as I told people on KVM forum I'm merging stuch patches
if they look fine.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* remotes/mst/tags/for_upstream:
qdev: Add test of qdev_prop_check_global
qdev: Display warning about unused -global
tests: add smbios testing
tests: rename acpi-test to bios-tables-test
virtio-balloon: return empty data when no stats are available
pcie_host: Turn pcie_host_init() into an instance_init
SMBIOS: Fix type 17 field sizes
SMBIOS: Update Type 0 struct generator for machines >= 2.1
SMBIOS: Fix endian-ness when populating multi-byte fields
serial-pci: Set prog interface field of pci config to 16550 compatible
Conflicts:
include/hw/i386/pc.h
[PMM: fixed trivial conflict in pc.h]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This can help a user understand why -global was ignored.
For example: with "-vga cirrus"; "-global vga.vgamem_mb=16" is just
ignored when "-global cirrus-vga.vgamem_mb=16" is not.
This is currently clear when the wrong property is provided:
out/x86_64-softmmu/qemu-system-x86_64 -global cirrus-vga.vram_size_mb=16 -monitor pty -vga cirrus
char device redirected to /dev/pts/20 (label compat_monitor0)
qemu-system-x86_64: Property '.vram_size_mb' not found
Aborted (core dumped)
vs
out/x86_64-softmmu/qemu-system-x86_64 -global vga.vram_size_mb=16 -monitor pty -vga cirrus
char device redirected to /dev/pts/20 (label compat_monitor0)
VNC server running on `::1:5900'
^Cqemu: terminating on signal 2
Signed-off-by: Don Slutz <dslutz@verizon.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
