Commit Graph

450 Commits

Author SHA1 Message Date
Vijay Mohan Pandarathil 7b4b0e9eda vfio: QEMU-AER: Qemu changes to support AER for VFIO-PCI devices
Add support for error containment when a VFIO device assigned to a KVM
guest encounters an error. This is for PCIe devices/drivers that support AER
functionality. When the host OS is notified of an error in a device either
through the firmware first approach or through an interrupt handled by the AER
root port driver, the error handler registered by the vfio-pci driver gets
invoked. The qemu process is signaled through an eventfd registered per
VFIO device by the qemu process. In the eventfd handler, qemu decides on
what action to take. In this implementation, guest is brought down to
contain the error.

The kernel patches for the above functionality has been already accepted.

This is a refresh of the QEMU patch which was reviewed earlier.
http://marc.info/?l=linux-kernel&m=136281557608087&w=2
This patch has the same contents and has been built after refreshing
to latest upstream and after the linux headers have been updated in qemu.

	- Create eventfd per vfio device assigned to a guest and register an
          event handler

	- This fd is passed to the vfio_pci driver through the SET_IRQ ioctl

	- When the device encounters an error, the eventfd is signalled
          and the qemu eventfd handler gets invoked.

	- In the handler decide what action to take. Current action taken
          is to stop the guest.

Signed-off-by: Vijay Mohan Pandarathil <vijaymohan.pandarathil@hp.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-07-15 15:49:49 -06:00
Alex Williamson 39360f0b91 vfio-pci: VGA quirk update
Turns out all the suspicions for AMD devices were correct, everywhere
we read a BAR address that the address matches the config space offset,
there's full access to PCI config space.  Attempt to generalize some
helpers to allow quirks to easily be added for mirrors and windows.
Also fill in complete config space for AMD.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2013-07-15 15:48:11 -06:00
Alexander Graf a0f9fdfd98 PPC: Add timer handler for newworld mac-io
Mac OS X accesses fancy timer registers inside of the mac-io on bootup.

These really should be ticking at the mac-io bus frequency, but I don't
see anyone upset when we just make them as fast as we want to.

With this patch on top of my previous patch queue and latest OpenBIOS
I am able to boot Mac OS X 10.4 with -M mac99.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:25 +02:00
Alexander Graf 03ee3b1e58 PPC: dbdma: Move processing to io
Soon we will introduce intermediate processing pauses which will
allow the bottom half to restart a DMA request that couldn't be
fulfilled yet.

For that to work, move the processing variable into the io struct
which is what DMA providers work with.

While touching it, also change it into a bool

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:25 +02:00
Alexander Graf d2f0ce2189 PPC: dbdma: Move static bh variable to device struct
The DBDMA controller has a bottom half to asynchronously process DMA
request queues.

This bh was stored as a gross static variable. Move it into the device
struct instead.

While at it, move all users of it to the new generic kick function.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:24 +02:00
Alexander Graf d1e562deb2 PPC: dbdma: Introduce kick function
The DBDMA engine really is running all the time, waiting for input. However
we don't want to waste cycles constantly polling.

So introduce a kick function that data providers can call to notify the
DBDMA controller of new input.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:24 +02:00
Alexander Graf f2f963fd07 PPC: dbdma: Move defines into header file
We usually keep struct and constant definitions in header files. Move
them there to stay consistent and to make access to fields easier.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:24 +02:00
Alexander Graf 7eaba824b6 PPC: dbdma: Allow new commands in RUN state
The DBDMA controller can not change its command stream while it's
actively streaming data, true. But the fact that it's in RUN state
doesn't actually indicate anything. It could just as well be in
WAIT while in RUN. And then it's legal to change commands.

This fixes a real world issue I've encountered with Mac OS X.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:24 +02:00
Alexander Graf 58c0c31183 PPC: dbdma: Fix debug print
There was a debug print that didn't compile for me because the format
and the arguments weren't in sync. Fix it up.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:24 +02:00
Alexander Graf 33ce36bb33 PPC: Mac: Add debug prints in macio and dbdma code
The macio code is basically undebuggable as it stands today, with no
debug prints anywhere whatsoever. DBDMA was better, but I needed a
few more to create reasonable logs that tell me where breakage is.

Add a DPRINTF macro in the macio source file and add a bunch of debug
prints that are all disabled by default of course.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:24 +02:00
Alexander Graf 9e23242878 PPC: dbdma: Replace tabs with spaces
s/^I/        /g on the file with a few manual tweaks to align things.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:24 +02:00
Alexander Graf 14eefd0ec3 PPC: g3beige: Move secondary IDE bus to mac-io
On a real G3 Beige the secondary IDE bus lives on the mac-io chip, not
on some random PCI device. Move it there to become more compatible.

While at it, also clean up the IDE channel connection logic.

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-11 18:51:24 +02:00
Andreas Färber 4917cf4432 cpu: Replace cpu_single_env with CPUState current_cpu
Move it to qom/cpu.h.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-09 21:20:28 +02:00
Anthony Liguori dc11549ec2 pci,misc enhancements
This includes some pci enhancements:
 
 Better support for systems with multiple PCI root buses
 FW cfg interface for more robust pci programming in BIOS
 Minor fixes/cleanups for fw cfg and cross-version migration -
     because of dependencies with other patches
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci,misc enhancements

This includes some pci enhancements:

Better support for systems with multiple PCI root buses
FW cfg interface for more robust pci programming in BIOS
Minor fixes/cleanups for fw cfg and cross-version migration -
    because of dependencies with other patches

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Sun 07 Jul 2013 03:11:18 PM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By David Gibson (10) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  pci: Fold host_buses list into PCIHostState functionality
  pci: Remove domain from PCIHostBus
  pci: Simpler implementation of primary PCI bus
  pci: Add root bus parameter to pci_nic_init()
  pci: Add root bus argument to pci_get_bus_devfn()
  pci: Replace pci_find_domain() with more general pci_root_bus_path()
  pci: Use helper to find device's root bus in pci_find_domain()
  pci: Abolish pci_find_root_bus()
  pci: Move pci_read_devaddr to pci-hotplug-old.c
  pci: Cleanup configuration for pci-hotplug.c
  pvpanic: fix fwcfg for big endian hosts
  pvpanic: initialization cleanup
  MAINTAINERS: s/Marcelo/Paolo/
  e1000: cleanup process_tx_desc
  pc_piix: cleanup init compat handling
  pc: pass PCI hole ranges to Guests
  pci: store PCI hole ranges in guestinfo structure
  range: add Range structure

Message-id: 1373228271-31223-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-08 08:00:23 -05:00
Paolo Bonzini 3c16154210 hw/m*: pass owner to memory_region_init* functions
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:48 +02:00
Paolo Bonzini 5cb022a1bf vfio: pass device to vfio_mmap_bar and use it to set owner
Cc: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:47 +02:00
Paolo Bonzini dfde4e6e1a memory: add ref/unref calls
Add ref/unref calls at the following places:

- places where memory regions are stashed by a listener and
  used outside the BQL (including in Xen or KVM).

- memory_region_find callsites

- creation of aliases and containers (only the aliased/contained
  region gets a reference to avoid loops)

- around calls to del_subregion/add_subregion, where the region
  could disappear after the first call

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:45 +02:00
Paolo Bonzini 2c9b15cab1 memory: add owner argument to initialization functions
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:44 +02:00
Jan Kiszka d67f679d99 vmport: Disentangle read handler type from portio
In case the latter may vanish one day, make sure the vmport read handler
type will remain unaffected. This is also conceptually cleaner.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:44 +02:00
Jan Kiszka e3914e3ad8 applesmc: replace register_ioport*
Convert over to memory regions to obsolete register_ioport*.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-07-04 17:42:43 +02:00
Michael S. Tsirkin fea7d5966a pvpanic: fix fwcfg for big endian hosts
Convert port number to little endian when
exposing it in fw cfg.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-04 10:42:51 +03:00
Michael S. Tsirkin bc3e6a0d6c pvpanic: initialization cleanup
Avoid use of static variables: PC systems
initialize pvpanic device through pvpanic_init,
so we can simply create the fw_cfg file at that point.
This also makes it possible to skip device
creation completely if fw_cfg is not there, e.g. for xen -
so the ports it reserves are not discoverable by guests.

Also, make pvpanic_init void since callers ignore return
status anyway.

Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Cc: Paul Durrant <Paul.Durrant@citrix.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-04 10:42:51 +03:00
Alexander Graf 0d54a5024f mac-io: Add escc-legacy memory alias region
Mac OS X's debugging serial driver accesses the ESCC through a different
register layout, called "escc-legacy". This layout differs from the normal
escc register layout purely by the location of the respective registers.

This patch adds a memory alias region that takes normal escc registers and
maps them into the escc-legacy register space.

With this patch applied, a Mac OS X guest successfully emits debug output
on the serial port when run with debug parameters set, for example by running:

  $ qemu-system-ppc -prom-env -'boot-args=-v debug=0x8 io=0xff serial=0x3' \
                    -cdrom 10.4.iso -boot d

Signed-off-by: Alexander Graf <agraf@suse.de>
2013-07-01 01:11:17 +02:00
Andreas Färber cb446ecab7 kvm: Change cpu_synchronize_state() argument to CPUState
Change Monitor::mon_cpu to CPUState as well.

Reviewed-by: liguang <lig.fnst@cn.fujitsu.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-28 13:25:12 +02:00
Stefan Weil f3c8fac25f i.MX31: Fix PRCS bit test
cppcheck detected a condition which was always false.

According to the MCIMX31 Reference Manual, the PRCS bits have to be 01
to select the Frequency Pre-Multiplier (FPM). PRCS uses bits 1 and 2,
so we have to test for 2.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Message-id: 1370810662-32320-1-git-send-email-sw@weilnetz.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2013-06-25 18:42:49 +01:00
Avi Kivity 06d985f5d8 vfio: abort if an emulated iommu is used
vfio doesn't support guest iommus yet, indicate it to the user
by gently depositing a core on their disk.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Avi Kivity <avi.kivity@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20 16:32:47 +02:00
Paolo Bonzini 052e87b073 memory: make section size a 128-bit integer
So far, the size of all regions passed to listeners could fit in 64 bits,
because artificial regions (containers and aliases) are eliminated by
the memory core, leaving only device regions which have reasonable sizes

An IOMMU however cannot be eliminated by the memory core, and may have
an artificial size, hence we may need 65 bits to represent its size.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-06-20 16:32:47 +02:00
Blue Swirl 371a775dc1 Merge branch 'realize-isa.v2' of git://github.com/afaerber/qemu-cpu
* 'realize-isa.v2' of git://github.com/afaerber/qemu-cpu:
  qdev: Drop FROM_QBUS() macro
  isa: QOM'ify ISADevice
  isa: QOM'ify ISABus
  i8259: Convert PICCommonState to use QOM realizefn
  kvm/i8259: QOM'ify some more
  i8259: QOM'ify some more
  i8254: Convert PITCommonState to QOM realizefn
  kvm/i8254: QOM'ify some more
  i8254: QOM'ify some more
  isa: Use realizefn for ISADevice
  cs4231a: QOM'ify some more
  gus: QOM'ify some more
2013-06-15 10:53:44 +00:00
Stefan Hajnoczi baefb8bf8e ivshmem: add missing error exit(2)
If the user fails to specify 'chardev' or 'shm' then we cannot continue.
Exit right away so that we don't invoke shm_open(3) with a NULL pointer.

It would be nice to replace exit(1) with error returns in the PCI device
.init() function, but leave that for another patch since exit(1) is
currently used elsewhere.

Spotted by Coverity.

Cc: Cam Macdonell <cam@cs.ualberta.ca>
Cc: qemu-stable@nongnu.org
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-06-12 13:17:53 +04:00
Andreas Färber db895a1e6a isa: Use realizefn for ISADevice
Drop ISADeviceClass::init and the resulting no-op initfn and let
children implement their own realizefn. Adapt error handling.
Split off an instance_init where sensible.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-06-07 12:14:45 +02:00
Michael S. Tsirkin c3c4fe35be pvpanic: use FWCfgState explicitly
Use the type-safe FWCfgState structure instead
of the unsafe void *.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-06-02 18:14:15 +03:00
Michael S. Tsirkin 600c60b76d fw_cfg: add API to find FW cfg object
Remove some code duplication by adding a
function to look up the fw cfg file.
This way, we don't need to duplicate same strings everywhere.
Use by both fw cfg and pvpanic device.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-06-02 18:14:14 +03:00
Michael Tokarev 997aba8e25 remove some double-includes
Some source files #include the same header more than
once for no good reason.  Remove second #includes in
such cases.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2013-05-18 16:35:12 +04:00
Hu Tao 3ab135f346 pvpanic: create pvpanic by default for machine 1.5
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: f840042f0e1205041f8feaf0d39ca639884f3a00.1366945969.git.hutao@cn.fujitsu.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-30 10:30:01 -05:00
Hu Tao 10a584b287 pvpanic: pass configurable ioport to seabios
This lets seabios patch the corresponding SSDT entry.

Also add fw_cfg object to /machine/fw_cfg so we can reference
it elsewhere.

Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: 60c65d95fe2b23b12bea67099126566010a11a1a.1366945969.git.hutao@cn.fujitsu.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-30 10:30:01 -05:00
Hu Tao eec3d2adc9 introduce a new qom device to deal with panicked event
pvpanic device is used to send guest panic event from guest to qemu.

When guest panic happens, pvpanic device driver will write a event
number to IO port 0x505(which is the IO port occupied by pvpanic device,
by default). On receiving the event, pvpanic device will pause guest
cpu(s), and send a qmp event QEVENT_GUEST_PANICKED.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Message-id: b66077a40235b3531632a05a6ff373850afc7d2e.1366945969.git.hutao@cn.fujitsu.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-30 10:30:01 -05:00
Andreas Färber f02317ad4e vmport: QOM'ify
Introduce type constant and cast macro to obsolete DO_UPCAST().
Prepares for ISA realizefn.

Drop reserved underscore from struct name while at it.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1367093935-29091-20-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-29 08:27:50 -05:00
Andreas Färber b582b5a398 sga: QOM'ify
Introduce type constant and cast macro.

Prepares for ISA realizefn.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1367093935-29091-17-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-29 08:27:49 -05:00
Andreas Färber 82407b6c34 applesmc: QOM'ify
Add a typedef for the state struct and rename from Status to State.
Add type constant and cast macro to obsolete DO_UPCAST().

Prepares for ISA realizefn.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Message-id: 1367093935-29091-2-git-send-email-afaerber@suse.de
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-29 08:27:46 -05:00
Anthony Liguori f691df5283 Merge remote-tracking branch 'stefanha/trivial-patches' into staging
# By Stefan Weil (3) and others
# Via Stefan Hajnoczi
* stefanha/trivial-patches:
  m25p80: Remove bogus include of devices.h
  ssh: Remove unnecessary use of strlen function.
  block/ssh: Add missing gcc format attributes
  linux-user: change do_semop to return target errno when unsuccessful
  w64: Fix compiler warnings (wrong format specifier)
  Remove unneeded type casts
  virtio.h: drop unused function prototypes
  bswap: fix compiler warning

Message-id: 1366371241-23430-1-git-send-email-stefanha@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-19 08:38:16 -05:00
Anthony Liguori 5dff24beba pci: add pci test device
This adds a new device that we can use for testing PCI PIO and MMIO, with and
 without ioeventfd in different configurations.  FAST_MMIO will be added if/when
 kvm supports it.  Also included are minor cleanups in kvm APIs that it needs.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci: add pci test device

This adds a new device that we can use for testing PCI PIO and MMIO, with and
without ioeventfd in different configurations.  FAST_MMIO will be added if/when
kvm supports it.  Also included are minor cleanups in kvm APIs that it needs.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Mon 15 Apr 2013 05:42:24 PM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Michael S. Tsirkin
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  pci: add pci test device
  kvm: support non datamatch ioeventfd
  kvm: support any size for pio eventfd
  kvm: remove unused APIs

Message-id: cover.1366272004.git.mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-04-19 08:38:05 -05:00
Stefan Weil e1fe50dcb3 Remove unneeded type casts
cpu_physical_memory_read, cpu_physical_memory_write take any pointer
as 2nd argument without needing a type cast.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2013-04-19 11:36:33 +02:00
Michael S. Tsirkin 22773d6066 pci: add pci test device
This device is used for kvm unit tests,
currently it supports testing performance of ioeventfd.
Using updated kvm unittest, here's an example output:
        mmio-no-eventfd:pci-mem 8796
        mmio-wildcard-eventfd:pci-mem 3609
        mmio-datamatch-eventfd:pci-mem 3685
        portio-no-eventfd:pci-io 5287
        portio-wildcard-eventfd:pci-io 1762
        portio-datamatch-eventfd:pci-io 1777

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-04-16 01:41:53 +03:00
Paolo Bonzini dccfcd0e5f sysemu: avoid proliferation of include/ subdirectories
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-15 18:19:25 +02:00
Peter Maydell bd2be15003 arm: fix location of some include files
The recent rearrangement of include files had some minor errors:
 devices.h is not ARM specific and should not be in arm/
 arm.h should be in arm/

Move these two headers to correct this.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-15 15:16:01 +02:00
Paolo Bonzini 47b43a1f41 hw: move private headers to hw/ subdirectories.
Many headers are used only in a single directory.  These can be
kept in hw/.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:16 +02:00
Paolo Bonzini e28bee8ee6 hw: move other devices to hw/misc/, configure with default-configs/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:16 +02:00
Paolo Bonzini ba25df88cc hw: move VFIO and ivshmem to hw/misc/
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:14 +02:00
Paolo Bonzini 49ab747f66 hw: move target-independent files to subdirectories
This patch tackles all files that are compiled once, moving
them to subdirectories of hw/.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:12 +02:00
Paolo Bonzini 1fd6bb44ed hw: make subdirectories for devices
Prepare the new directory structure.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-04-08 18:13:11 +02:00