Commit Graph

24648 Commits

Author SHA1 Message Date
Peter Maydell
139bd956ea hw/omap1.c: Add fallthrough markers and breaks
Explicitly mark cases where we are deliberately falling
through to the following code. In one case we insert a
'break' instead of falling through to a 'break', as this
seems slightly clearer.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:20:44 +00:00
Peter Maydell
bf4229d3cb hw/arm_sysctl.c: Add missing 'break' statements
Add some break statements that were accidentally omitted
from some cases of arm_sysctl_write(). The omission was
harmless because in both cases the following case did
an immediate break, but adding the breaks explicitly
placates static analysers and avoids weird behaviour if
the following register is ever implemented as something
other than a no-op.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:20:43 +00:00
Michael Tokarev
b4451996e7 link seccomp only with softmmu targets
Now, if seccomp is detected, it is linked into every executable,
but is used only by softmmu targets (from vl.c).  So link it
only where it is actually needed.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:19:57 +00:00
Blue Swirl
0360ccffbe bsd-user: avoid conflict with qemu_vmalloc
Rename qemu_vmalloc() to bsd_vmalloc(), adjust the only user.

Remove #ifdeffery in oslib-posix.c.

Tested-by: Andreas Färber <andreas.faerber@web.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:18:27 +00:00
Paolo Bonzini
82cb6b041c build: remove extra-obj-y
extra-obj-y is somewhat complicated to understand.  Replace it with a
special CONFIG_ALL symbol that is defined only at toplevel.
This limits the case of directories defining more than one
*-obj-y target.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:15:37 +00:00
Paolo Bonzini
000823449c build: remove universal-obj-y
All of universal-obj-y, user-obj-y (right now unused) and common-obj-y can
be unified into common-obj-y if we take care of defining CONFIG_SOFTMMU
and CONFIG_USER_ONLY in the toplevel makefile.  This is similar to how
we define symbols for hardware components.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:15:35 +00:00
Paolo Bonzini
737f351892 build: use -$(CONFIG_SECCOMP) instead of ifeq
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Acked-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:15:34 +00:00
Paolo Bonzini
6598001590 build: move around libcacard-y definition
It is also needed if !CONFIG_SOFTMMU, unlike everything that surrounds it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:14:26 +00:00
Paolo Bonzini
5f7a74a1a6 tests: adjust gcov variables for directory movement
I had missed the introduction of the gcov-files-* variables.

Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26 13:10:36 +00:00
Scott Wood
f5fba9d27f PPC: e500: Select MPIC v4.2 on ppce500 platform
The compatible string is changed to fsl,mpic on all e500 platforms, to
advertise the existence of BRR1.  This matches what the device tree will
have on real hardware.

With MPIC v4.2 max_cpu can be increased from 15 to 32.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:56 +01:00
Scott Wood
bd25922e73 PPC: e500: fix mpic_iack address
MPIC+0xa0 is IACK for the current CPU.  MPIC+0x200a0 is IACK for CPU 0.
This fix allows EPR to work with an SMP target.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:56 +01:00
Scott Wood
e0dfe5b189 openpic: add basic support for MPIC v4.2
Besides the new value in the version register, this provides:
- ILR support, which includes:
  - IDR becoming a pure CPU bitmap, allowing 32 CPUs
  - machine check output support (though other parts of QEMU need to
    be fixed for it to do something other than immediately reboot the
    guest)
- dummy error interrupt support (EISR0/EIMR0 read as zero)
  - actually all FSL MPICs get all summary registers returning zero for now,
    which includes EISR0/EIMR0

Various refactoring is done to support these changes and to ease
new functionality (e.g. a more flexible way of declaring regions).

Just as the code was already not a full implementation of MPIC v2.0,
this is not a full implementation of MPIC v4.2 -- e.g. it still has only
one bank of MSIs.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:56 +01:00
Scott Wood
03274d44f6 openpic: fix timer address decoding
The timer memory range begins at 0x10f0, so that address 0x1120 shows
up as 0x30, 0x1130 shows up as 0x40, etc.  However, the address
decoding (other than TFRR) is not adjusted for this, causing the
wrong registers to be accessed.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:56 +01:00
Scott Wood
f40c360c0d openpic: fix remaining issues from idr-to-destmask conversion
openpic_update_irq() was checking idr rather than destmask, treating
it as if it were a simple bitmap of cpus.  Changed to use destmask.

IPI delivery was removing bits directly from .idr, without calling
write_IRQreg_idr so that the change could be conveyed to destmask.
Changed to use destmask directly.

Save/restore destmask when serializing, as due to the IPI change it
cannot be reproduced from idr.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:56 +01:00
David Gibson
1ea1ce8ac3 pseries: Adjust default VIO address allocations to play better with libvirt
Currently, if VIO devices for pseries don't have addresses explicitly
allocated, they get automatically numbered from 0x1000.  This is in the
same general range that libvirt will typically assign VIO device addresses.

That means that if there is a device libvirt doesn't know about, and it
gets an address assigned before the libvirt assigned devices are processed,
we can end up with an address conflict (qemu will abort with an error).

While the real solution is to teach libvirt about the other devices, so it
can correctly manage the whole allocation, this patch reduces the interim
inconvenience by moving qemu allocations to a range that libvirt is less
likely to conflict with.

Because the guest gets the device addresses through the device tree, these
addresses are truly arbitrary and can be changed without breaking guests.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:55 +01:00
David Gibson
caae58cba0 pseries: Improve handling of multiple PCI host bridges
Multiple - even many - PCI host bridges (i.e. PCI domains) are very
common on real PAPR compliant hardware.  For reasons related to the
PAPR specified IOMMU interfaces, PCI device assignment with VFIO will
generally require at least two (virtual) PHBs and possibly more
depending on which devices are assigned.

At the moment the qemu PAPR PCI code will not deal with this well,
leaving several crucial parameters of PHBs other than the default one
uninitialized.  This patch reworks the code to allow this.

Every PHB needs a unique BUID (Bus Unit Identifier, the id used for
the PAPR PCI related interfaces) and a unique LIOBN (Logical IO Bus
Number, the id used for the PAPR IOMMU related interfaces).  In
addition they need windows in CPU real address space to access PCI
memory space, PCI IO space and MSIs.  Properties are added to the PCI
host bridge qdevice to allow configuration of all these.

To simplify configuration of multiple PHBs for common cases, a
convenience "index" property is also added.  This can be set instead
of the low-level properties, and will generate suitable values for the
other parameters, different for each index value.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:55 +01:00
Mike Qiu
fe828a4d4b target-ppc: Give a meaningful error if too many threads are specified
Currently the target-ppc tcg code only supports a single thread.  You can
specify more, but they're treated identically to multiple cores.  On KVM
we obviously can't support more threads than the hardware; if more are
specified it will cause strange and cryptic errors.

This patch clarifies the situation by giving a simple meaningful error if
more threads are specified than we can support.

Signed-off-by: Mike Qiu <qiudayu@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:55 +01:00
Andreas Färber
293c867d8c cuda: Move ADB bus into CUDA state
Replace the global adb_bus with a CUDA-internal one, accessed using
regular qdev child bus accessor.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:55 +01:00
Andreas Färber
2e4a7c9c5d adb: QOM'ify ADB devices
They were not qdev'ified before. Derive ADBDevice from DeviceState and
convert reset callbacks to DeviceClass::reset, ADBDevice::opaque pointer
to ADBDevice subtypes for mouse and keyboard and adb_{kbd,mouse}_init()
to regular qdev functions.

Fixing Coding Style issues and splitting keyboard and mouse off into
their own files is left for a later point in time.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:55 +01:00
Andreas Färber
84ede32908 adb: QOM'ify Apple Desktop Bus
It was not a qbus before, turn it into a first-class bus and initialize
it properly from CUDA. Leave it a global variable as long as devices are
not QOM'ified yet.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:55 +01:00
Andreas Färber
45fa67fb68 cuda: QOM'ify CUDA
It was not qdev'ified before. Turn it into a SysBusDevice and embed it
in MacIO.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:54 +01:00
Andreas Färber
07a7484e5d ide/macio: QOM'ify MacIO IDE
It was not qdev'ified before. Turn it into a SysBusDevice.
Embed them into the MacIO devices.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:54 +01:00
Andreas Färber
95ed3b7cf1 mac_nvram: QOM'ify MacIO NVRAM
It was not qdev'ified before. Turn it into a SysBusDevice and
initialize it via static properties.

Prepare Old World specific MacIO state and embed the NVRAM state there.

Drop macio_nvram_setup_bar() in favor of sysbus_mmio_map() or
direct use of Memory API.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:54 +01:00
Andreas Färber
d8c6d07fdf mac_nvram: Mark as Big Endian
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:54 +01:00
Andreas Färber
3743cca7d5 mac_nvram: Clean up public API
The state data field is accessed in uint8_t quantities, so switch from
uint32_t argument and return value to uint8_t.

Fix debug format specifiers while at it.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:54 +01:00
Andreas Färber
d037834a9d macio: Split MacIO in two
Let the machines create two different types. This prepares to move
knowledge about sub-devices from the machines into the devices.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:54 +01:00
Andreas Färber
7b925079e3 macio: Delay qdev init until all fields are initialized
This turns macio_bar_setup() into an implementation detail of the qdev
initfn, to be removed step by step.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:54 +01:00
Andreas Färber
fcf1bbabf4 macio: QOM'ify some more
Move bar MemoryRegion initialization to an instance_init.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:54 +01:00
Andreas Färber
baec19105b ppc: Move Mac machines to hw/ppc/
Signed-off-by: Andreas Färber <afaerber@suse.de>
[agraf: squash in MAINTAINERS fix]
Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25 22:02:53 +01:00
Kevin Wolf
67bec53d9f ide: Add fall through annotations
Add comments to help static analysers detect that these cases are
intentional, and clean up some whitespace in the environment of these
comments.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2013-01-25 18:27:10 +01:00
Vishvananda Ishaya
8689907266 block: Create proper size file for disk mirror
The qmp monitor command to mirror a disk was passing -1 for size
along with the disk's backing file. This size of the resulting disk
is the size of the backing file, which is incorrect if the disk
has been resized. Therefore we should always pass in the size of
the current disk.

Signed-off-by: Vishvananda Ishaya <vishvananda@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:36 +01:00
Jason Baron
a26230218d ahci: Add migration support
Jason tested these patches by migrating Windows 7 and Fedora 17 guests
(while under I/O) on both piix with ahci attached and on q35 (which has
a built-in AHCI controller).

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:36 +01:00
Kevin Wolf
4ac557c89b ahci: Change data types in preparation for migration
The size of an int depends on the host, so in order to be able to
migrate these fields, make them either int32_t or bool, depending on the
use.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:36 +01:00
Jason Baron
1147bb15a7 ahci: Remove unused AHCIDevice fields
'dma_status' and 'dma_cb' are written to, but never read.
Remove these fields in preparation for AHCI migration bits.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:36 +01:00
Paolo Bonzini
1b09524455 hbitmap: add assertion on hbitmap_iter_init
hbitmap_iter_init causes an out-of-bounds access when the "first"
argument is or greater than or equal to the size of the bitmap.
Forbid this with an assertion, and remove the failing testcase.

Reported-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Paolo Bonzini
88ff0e48ee mirror: do nothing on zero-sized disk
On a zero-sized disk we need to break out of the job successfully
before bdrv_dirty_iter_init is called, otherwise you will get an
assertion failure with the next patch.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Stefan Weil
0e87ba2ccb block/vdi: Check for bad signature
vdi_open did not check for a bad signature.
This check was only in vdi_probe.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Stefan Weil
8937f8222c block/vdi: Improved return values from vdi_open
vdi_open returned -1 in case of any error, but it should return an
error code (negative value of errno or -EMEDIUMTYPE).

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Stefan Weil
9f0470bb2d block/vdi: Improve debug output for signature
The signature is a 32 bit value and needs up to 8 hex digits for printing.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Stefan Weil
15bac0d54f block: Use error code EMEDIUMTYPE for wrong format in some block drivers
This improves error reports for bochs, cow, qcow, qcow2, qed and vmdk
when a file with the wrong format is selected.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Stefan Weil
02582abd48 block: Add special error code for wrong format
The block drivers need a special error code for "wrong format".
From the available error codes EMEDIUMTYPE fits best.
It is not available on all platforms, so a definition in
qemu-common.h and a specific error report are needed.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Paolo Bonzini
884fea4e87 mirror: support arbitrarily-sized iterations
Yet another optimization is to extend the mirroring iteration to include more
adjacent dirty blocks.  This limits the number of I/O operations and makes
mirroring efficient even with a small granularity.  Most of the infrastructure
is already in place; we only need to put a loop around the computation of
the origin and sector count of the iteration.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Paolo Bonzini
402a47411b mirror: support more than one in-flight AIO operation
With AIO support in place, we can start copying more than one chunk
in parallel.  This patch introduces the required infrastructure for
this: the buffer is split into multiple granularity-sized chunks,
and there is a free list to access them.

Because of copy-on-write, a single operation may already require
multiple chunks to be available on the free list.

In addition, two different iterations on the HBitmap may want to
copy the same cluster.  We avoid this by keeping a bitmap of in-flight
I/O operations, and blocking until the previous iteration completes.
This should be a pretty rare occurrence, though; as long as there is
no overlap the next iteration can start before the previous one finishes.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:35 +01:00
Paolo Bonzini
08e4ed6cde mirror: add buf-size argument to drive-mirror
This makes sense when the next commit starts using the extra buffer space
to perform many I/O operations asynchronously.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:34 +01:00
Paolo Bonzini
bd48bde8f0 mirror: switch mirror_iteration to AIO
There is really no change in the behavior of the job here, since
there is still a maximum of one in-flight I/O operation between
the source and the target.  However, this patch already introduces
the AIO callbacks (which are unmodified in the next patch)
and some of the logic to count in-flight operations and only
complete the job when there is none.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:34 +01:00
Paolo Bonzini
eee13dfe30 mirror: allow customizing the granularity
The desired granularity may be very different depending on the kind of
operation (e.g. continuous replication vs. collapse-to-raw) and whether
the VM is expected to perform lots of I/O while mirroring is in progress.

Allow the user to customize it, while providing a sane default so that
in general there will be no extra allocated space in the target compared
to the source.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:34 +01:00
Paolo Bonzini
50717e941b block: allow customizing the granularity of the dirty bitmap
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:34 +01:00
Paolo Bonzini
acc906c6c5 block: return count of dirty sectors, not chunks
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:33 +01:00
Paolo Bonzini
b812f6719c mirror: perform COW if the cluster size is bigger than the granularity
When mirroring runs, the backing files for the target may not yet be
ready.  However, this means that a copy-on-write operation on the target
would fill the missing sectors with zeros.  Copy-on-write only happens
if the granularity of the dirty bitmap is smaller than the cluster size
(and only for clusters that are allocated in the source after the job
has started copying).  So far, the granularity was fixed to 1MB; to avoid
the problem we detected the situation and required the backing files to
be available in that case only.

However, we want to lower the granularity for efficiency, so we need
a better solution.  The solution is to always copy a whole cluster the
first time it is touched.  The code keeps a bitmap of clusters that
have already been allocated by the mirroring job, and only does "manual"
copy-on-write if the chunk being copied is zero in the bitmap.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:33 +01:00
Paolo Bonzini
343bded4ec block: make round_to_clusters public
This is needed in the following patch.

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25 18:18:33 +01:00