This add support for switching devices into a compatibility mode
using device properties. Machine types can have a list of properties
for specific devices attached to allow the easy creation of machine
types compatible to older qemu versions.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch is a major overhaul of the device properties. The properties
are saved directly in the device state struct now, the linked list of
property values is gone.
Advantages:
* We don't have to maintain the list with the property values.
* The value in the property list and the value actually used by
the device can't go out of sync any more (used to happen for
the pci.devfn == -1 case) because there is only one place where
the value is stored.
* A record describing the property is required now, you can't set
random properties any more.
There are bus-specific and device-specific properties. The former
should be used for properties common to all bus drivers. Typical
use case is bus addressing, i.e. pci.devfn and i2c.address.
Properties have a PropertyInfo struct attached with name, size and
function pointers to parse and print properties. A few common property
types have PropertyInfos defined in qdev-properties.c. Drivers are free
to implement their own very special property parsers if needed.
Properties can have default values. If unset they are zero-filled.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Useful for testing hardware emulations or manipulating its state to
stress guest drivers.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Currently only common PS2 state is initialized, leaving keyboard and
mouse specific state to contain stale values.
Signed-off-by: Dinesh Subhraveti <dineshs@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Hi,
Whoever wrote this migrate_set_speed function is totally stupid.
Any failed or completed migration keeps its state to allow probing of
migration data, but has no associated file anymore. It is, thus,
possible to crash qemu by calling migrate_set_speed after a migration
is finished (or failed, or cancelled), but before another one starts.
This patch fixes it.
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch removes dead i386 assembly code from softmmu_header.h.
The code is conditional on ASM_SOFTMMU, which is never defined.
Optimisation for the fast path is already handled by tcg_out_qemu_ld()
and tcg_out_qemu_st(), so there seems to be little need for this code.
Signed-off-by: Stuart Brady <stuart.brady@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Instead of doing our own check for protocols which fails because raw isn't
formally a protocol but special cased in find_protocol specify the BDRV_O_FILE
option to use the same code as bdrv_file_open does.
While we're at it also add the missing documentation for -g to the main
qemu-io help string.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Use static empty variable s_cputlb_empty_entry to clear entries,
also reset addend member when clearing entries.
This helps running with valgrind/memcheck
Signed-off-by: igor.v.kovalenko@gmail.com
--
Kind regards,
Igor V. Kovalenko
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Without this, after system reset, hpet does not detect transition from
non-legacy to legacy mode.
Signed-off-by: Beth Kon <eak@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The load_vmstate and save_vmstate functions are implemented as a
variation of the normal read/write operation, enabled by the -b option.
This is the same mechanism as is used to switch from read/write to
pread/pwrite.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Here is a patch I had sent twice to the list 2 years ago.
Hopefuly this time someone will be interested
It adds support for passing vga mode to linux kernel through
vga= option in -append
Signed-off-by: Pascal Terjan <pterjan@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Using int for cpu_{in, out}[bwl] is inconsistent with other part
because for address or value, uintN_t is used by other qemu part.
At least, softmmu, CPU{Read, Write}MemoryFunc, pci, target_phys_addr_t
and the callers of cpu_{in, out}[bwl]().
This patch removes the inconsistency.
IO port has its own address space so define pio_addr_t as uint32_t
because PCI io space width is 32bit.
And use uint{32, 16, 8}_t for ioport value.
Changing signedness of value might cause subtle issue. However
only a suspicious caller is kvm_handle_io() which is ok. And other callers
pass unsigned value in the first place.
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Cc: Stuart Brady <sdbrady@ntlworld.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: Samuel Thibault <samuel.thibault@gnu.org>
Cc: Tristan Gingold <gingold@adacore.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
remove some #ifdef DEBUG_UNUSED_IOPORT in ioport.c
and use PRIx32 where appropriate
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
In qemu-iotests, some large images are created using qemu-img.
Without checks for errors, qemu-img will just create an
empty image, and later read / write tests will fail.
With the patch, failures during image creation are detected
and reported.
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Since we recently do not disable 3DNOW! support anymore, we should
avoid setting the bits in the default qemu64 CPU model to ease
migration. TCG does not support it anyway and even AMD deprecates
it's usage nowadays.
If you want to use it in KVM, use the phenom, athlon or host CPU
model.
Signed-off-by: Andre Przywara <andre.przywara@amd.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
-S is not honored by qemu on incoming migration. If a domain is migrated
while paused, thus, it will start running on the remote machine; this
is wrong.
Given the trivial patch to fix this, it looks more like a thinko
than anything else, probably dating back to the qemu-kvm merge.
The interesting part is that the -S mechanism was in fact *used* when
migrating (setting autostart = 0) and the incoming migration code was
starting the VM at the end of the migration.
Since I was removing the vm_start from there, I also corrected a related
imprecision. The code was doing a vm_stop "just in case", but we can
be sure that the VM is not running---the vm_start call in vl.c has not
been reached yet. So the vm_stop is removed together with the vm_start.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The VM state offset is a concept internal to the image format. Replace
the old bdrv_{get,put}_buffer method that require an index into the
image file that is constructed from the VM state offset and an offset
into the vmstate with the bdrv_{load,save}_vmstate that just take an
offset into the VM state.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
We're marking the used entry bitmap in smbios_load_external() for each
type we check, regardless of whether we loaded anything. This makes
subsequent calls behave as if we've already loaded the tables from qemu
and can result in missing tables (ex. multiple type4 entries on an SMP
guest). Only mark the bitmap if we actually load something.
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This allows to set segment registers via gdb also in system emulation
mode. Basic sanity checks are applied and nothing is changed if they
fail. But screwing up the target via this interface will never be
complicated, so I avoided being too paranoid here.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Clarify gdb's register set layout by using constants for
cpu_gdb_read/write_register.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch adds support for the vCont remote gdb command. It is used by
gdb 6.8 or better to switch the debugging focus for single-stepping
multi-threaded targets, ie. multi-threaded application in user mode
emulation or VCPUs in system emulation.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This got broken between a13a4126c8 and c92ef6a22d: old slirp code used
255.255.255.0.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Disable the lengthy BIOS prompt for selecting a boot device by default,
but let the user reenable it via '-boot menu=on'.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This allows to specify an exceptional boot order only for the first
startup of the guest. After reboot, qemu will switch back to the default
order (or what was specified via 'order='). Makes installing from CD
images and then booting the freshly set up harddisk more handy.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Will be used by '-boot once=...', and should also help in other use
cases.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Convert the reset handler maintenance code to TAILQ services.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Move registration function for the boot_set callback handler and provide
qemu_boot_set so that it can also be used outside the monitor code.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch changes the boot command line option to the canonical format
-boot [order=drives][,...]
where 'drives' is using the same format as the old -boot. The format
switch allows to add the 'menu' and 'once' options in later patches. The
old format is still understood and will be processed at least for a
transition time.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Add a pc-0-10 machine type to allow a pc machine to be created with
virtio block and console devices compatibility with qemu-0.10.x.
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
We're using PCI_CLASS_DISPLAY_OTHER now, but qemu-kvm.git is using
PCI_CLASS_OTHERS because:
"As a PCI_CLASS_DISPLAY_OTHER, it reduces primary display somehow on
Windows XP (possibly Windows disables acceleration since it fails
to find a driver)."
While this is valid, many versions of X will get confused by it.
Class major number of 0 gets treated as a possibly prehistoric VGA
device, and then the autoconfig logic gets confused trying to figure
out whether the virtio console or the pv vga device are the real VGA.
We should really set a proper class ID. 0x0780 (serial / other) seems
most appropriate. This shouldn't require any kernel changes, the
modalias for virtio looks like:
alias: pci:v00001AF4d*sv*sd*bc*sc*i*
so won't care what the base class or subclass are.
It shows up in the guest as:
00:05.0 Communication controller: Qumranet, Inc. Virtio console
A new qdev type is introduced to allow devices using the old class
to be created for compatibility with qemu-0.10.x.
Reported-by: Adam Jackson <ajax@redhat.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Windows virtio driver cannot pass DTM (certification) tests while the
storage class is PCI_CLASS_STORAGE_UNKNOWN.
A new qdev type is introduced to allow devices using the old class
to be created for compatibility with qemu-0.10.x.
Reported-by: Dor Laor <dlaor@redhat.com>
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
