Commit Graph

429 Commits

Author SHA1 Message Date
Alex Williamson
f90c2bcdbc pci: convert PCIUnregisterFunc to void
Not a single driver has any possibility of failure on their
exit function, let's keep it that way.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-07-04 15:52:55 +03:00
Paolo Bonzini
55042b955b atapi: implement READ DISC INFORMATION
This command is not necessary for CD-ROM and DVD-ROM, but some versions of
udev trip on its absence.

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-07-02 10:18:41 +02:00
David Gibson
10ca2943aa ide/ahci: Use universal DMA helper functions
The AHCI device can provide both PCI and SysBus AHCI device
emulations.  For this reason, it wasn't previously converted to use
the pci_dma_*() helper functions.  Now that we have universal DMA
helper functions, this converts AHCI to use them.

The DMAContext is obtained from pci_dma_context() in the PCI case and
set to NULL in the SysBus case (i.e. we assume for now that a SysBus
AHCI has no IOMMU translation).

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-27 16:33:25 -05:00
David Gibson
c65bcef306 iommu: Make sglists and dma_bdrv helpers use new universal DMA helpers
dma-helpers.c contains a number of helper functions for doing
scatter/gather DMA, and various block device related DMA.  Currently,
these directly access guest memory using cpu_physical_memory_*(),
assuming no IOMMU translation.

This patch updates this code to use the new universal DMA helper
functions.  qemu_sglist_init() now takes a DMAContext * to describe
the DMA address space in which the scatter/gather will take place.

We minimally update the callers qemu_sglist_init() to pass NULL
(i.e. no translation, same as current behaviour).  Some of those
callers should pass something else in some cases to allow proper IOMMU
translation in future, but that will be fixed in later patches.

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-27 16:33:25 -05:00
Crístian Viana
93bfef4c6e Allow machines to configure the QEMU_VERSION that's exposed via hardware
QEMU exposes its version to the guest's hardware and in some cases that is wrong
(e.g. Windows prints messages about driver updates when you switch
the QEMU version).
There is a new field now on the struct QEmuMachine, hw_version, which may
contain the version that the specific machine should report. If that field is
set, then that machine will report that version to the guest.

Signed-off-by: Crístian Viana <vianac@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-06-19 13:36:56 -05:00
Anthony Liguori
8aca521512 Merge remote-tracking branch 'afaerber-or/qom-next-2' into staging
* afaerber-or/qom-next-2: (22 commits)
  qom: Push error reporting to object_property_find()
  qdev: Remove qdev_prop_exists()
  qbus: Initialize in standard way
  qbus: Make child devices links
  qdev: Connect busses with their parent devices
  qdev: Convert busses to QEMU Object Model
  qdev: Move SysBus initialization to sysbus.c
  qdev: Use wrapper for qdev_get_path
  qdev: Remove qdev_prop_set_defaults
  qdev: Clean up global properties
  qdev: Move bus properties to abstract superclasses
  qdev: Move bus properties to a separate global
  qdev: Push "type" property up to Object
  arm_l2x0: Rename "type" property to "cache-type"
  m48t59: Rename "type" property to "model"
  qom: Assert that public types have a non-NULL parent field
  qom: Drop type_register_static_alias() macro
  qom: Make Object a type
  qom: Add class_base_init
  qom: Add object_child_foreach()
  ...
2012-06-18 10:35:16 -05:00
Anthony Liguori
0b0cb9d310 Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony: (39 commits)
  qemu-iotests: add 036 autoclear feature bit test
  qemu-iotests: add qcow2.py set-feature-bit command
  fdc-test: introduced qtest read_without_media
  fdc: fix implied seek while there is no media in drive
  qcow2: fix autoclear image header update
  xen: Don't peek behind the BlockDriverState abstraction
  xen: Don't change -drive if=xen device name during machine init
  block: Replace bdrv_get_format() by bdrv_get_format_name()
  qemu-img: document qed format on qemu-img man page
  qemu-iotests: COW with many AIO requests on the same cluster
  qemu-iotests: Some backing file COW tests
  qcow2: Fix avail_sectors in cluster allocation code
  qcow2: Simplify calculation for COW area at the end
  qcow2: always operate caches in writeback mode
  ide: support enable/disable write cache
  block: always open drivers in writeback mode
  block: add bdrv_set_enable_write_cache
  block: copy enable_write_cache in bdrv_append
  savevm: flush after saving vm state
  block: flush in writethrough mode after writes
  ...
2012-06-18 10:34:59 -05:00
Anthony Liguori
df6606f455 Merge remote-tracking branch 'mst/tags/for_anthony' into staging
* mst/tags/for_anthony:
  pci_bridge_dev: fix error path in pci_bridge_dev_initfn()
  qdev: release parent properties on dc->init failure
  msi: Use msi/msix_present more consistently
  msi: Invoke msi/msix_write_config from PCI core
  msi: Guard msi/msix_write_config with msi_present
  msi: Invoke msi/msix_reset from PCI core
  msi: Guard msi_reset with msi_present
  ahci: Clean up reset functions
  intel-hda: Fix reset of MSI function
  ahci: Fix reset of MSI function
  rtl8139: honor RxOverflow flag in can_receive method
  shpc: unparent device before free
2012-06-18 10:18:44 -05:00
Anthony Liguori
0d936928ef qdev: Convert busses to QEMU Object Model
This is far less interesting than it sounds.  We simply add an Object to each
BusState and then register the types appropriately.  Most of the interesting
refactoring will follow in the next patches.

Since we're changing fundamental type names (BusInfo -> BusClass), it all needs
to convert at once.  Fortunately, not a lot of code is affected.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Made all new bus TypeInfos static const.]
[AF: Made qbus_free() call object_delete(), required {qom,glib}_allocated]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:38 +02:00
Paolo Bonzini
bce544740a qdev: Move bus properties to abstract superclasses
In qdev, each bus in practice identified an abstract superclass, but
this was mostly hidden.  In QOM, instead, these abstract classes are
explicit so we can move bus properties there.

All bus property walks are removed, and all device property walks
are changed to look along the class hierarchy instead.

We would have duplicates if class A defines some properties and its
subclass B does not define any, because class_b->props will be
left equal to class_a->props.

The solution here is to reintroduce the class_base_init TypeInfo
callback, that was present in one of the early QOM versions but
removed (on my request...) before committing.

This breaks global bus properties, an obscure feature when used
with the command-line which is actually useful and used when used by
backwards-compatible machine types.  So this patch also adjusts the
global bus properties in hw/pc_piix.c to refer to the abstract class.

Globals and other properties must be modified in the same patch to
avoid complications related to initialization ordering.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
3cb75a7cba qdev: Move bus properties to a separate global
Simple code movement in order to simplify future refactoring.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-06-18 15:14:37 +02:00
Paolo Bonzini
7cdd481cdf ide: support enable/disable write cache
Enabling or disabling the write cache is done with the SET FEATURES
command.  The command can be issued with sg_sat_set_features from
sg3-utils.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:43 +02:00
Markus Armbruster
dfc65f1f78 Un-inline fdctrl_init_isa()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-06-15 14:03:42 +02:00
Jan Kiszka
95d6580024 msi: Invoke msi/msix_write_config from PCI core
Also this functions is better invoked by the core than by each and every
device. This allows to drop the config_write callbacks from ich and
intel-hda.

CC: Alexander Graf <agraf@suse.de>
CC: Gerd Hoffmann <kraxel@redhat.com>
CC: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-06-07 17:19:00 +03:00
Jan Kiszka
cbd2d4342b msi: Invoke msi/msix_reset from PCI core
There is no point in pushing this burden to the devices, they tend to
forget to call them (like intel-hda, ahci, xhci did). Instead, reset
functions are now called from pci_device_reset. They do nothing if
MSI/MSI-X is not in use.

CC: Alexander Graf <agraf@suse.de>
CC: Gerd Hoffmann <kraxel@redhat.com>
CC: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-06-07 17:19:00 +03:00
Jan Kiszka
8ab60a0703 ahci: Clean up reset functions
Properly register reset functions via the device class.

CC: Alexander Graf <agraf@suse.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-06-07 17:18:59 +03:00
Jan Kiszka
868a1a5226 ahci: Fix reset of MSI function
Call msi_reset on device reset as still required by the core.

CC: Alexander Graf <agraf@suse.de>
CC: qemu-stable@nongnu.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-06-07 17:18:59 +03:00
Paolo Bonzini
be1029ec30 build: convert libhw to nested Makefile.objs
After this patch, the libhw* directories will have a hierarchy
that mimics the source tree.  This is useful because we do have
a couple of files there that are in the top source directory.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-06-07 09:21:17 +02:00
Daniel Verkamp
4bb9c939a5 ahci: SATA FIS is 20 bytes, not 0x20
As in the SATA and AHCI specifications, a FIS is 5 Dwords of 4 bytes
each, which comes to 20 bytes (decimal), not 0x20.

Signed-off-by: Daniel Verkamp <daniel@drv.nu>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-05-30 14:51:09 +02:00
Alexander Graf
d5b406d95b ATA: Allow WIN_SECURITY_FREEZE_LOCK as nop
When using Windows 8 with an AHCI disk drive, it issues a blue screen.
The reason is that WIN_SECURITY_FREEZE_LOCK / CFA_WEAR_LEVEL is not
supported by our ATA implementation, but Windows expects it to be there.

Since without security stuff implemented, the lock would be a nop anyway
and CFA_WEAR_LEVEL already is treated as a nop, let's just allow the cmd
for HD drives as well. That way Windows is happy.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-05-02 18:47:08 +02:00
Stefan Hajnoczi
e82dabd82e ide: convert ide_sector_write() to asynchronous I/O
The IDE PIO write sector code path uses bdrv_write() and hence can make
the guest unresponsive while the I/O request is in progress.  This patch
converts ide_sector_write() to use bdrv_aio_writev() by using the
BUSY_STAT bit to tell the guest that the request is in progress.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Tested-by: Richard Davies <richard@arachsys.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-19 16:03:27 +02:00
Stefan Hajnoczi
bef0fd5958 ide: convert ide_sector_read() to asynchronous I/O
The IDE PIO interface currently uses bdrv_read() to perform reads
synchronously.  Synchronous I/O in the vcpu thread is bad because it
prevents the guest from executing code - it makes the guest
unresponsive.

This patch converts IDE PIO to use bdrv_aio_readv().  We simply need to
use the BUSY_STAT status so the guest knows to wait while we are busy.

The only external user of ide_sector_read() is restart behavior on I/O
errors and it is not affected by this change.  We still need to restart
I/O in the same way.

Migration is also unaffected if I understand the code correctly.  We
continue to use the same transfer function and the BUSY_STAT status
should never be migrated since we flush I/O before migrating device
state.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Tested-by: Richard Davies <richard@arachsys.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-19 16:03:27 +02:00
David Gibson
43cf8ae69b Use DMADirection type for dma_bdrv_io
Currently dma_bdrv_io() takes a 'to_dev' boolean parameter to
determine the direction of DMA it is emulating.  We already have a
DMADirection enum designed specifically to encode DMA directions.
This patch uses it for dma_bdrv_io() as well.  This involves removing
the DMADirection definition from the #ifdef it was inside, but since that
only existed to protect the definition of dma_addr_t from places where
config.h is not included, there wasn't any reason for it to be there in
the first place.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-05 14:54:40 +02:00
Floris Bos
95ebda85e0 ide: Adds wwn=hex qdev option
Allow the user to specify a disk's World Wide Name.

Linux guests can address disks by their unique World Wide Name number
(e.g. /dev/disk/by-id/wwn-0x5001517959123522). This patch adds support
for assigning a World Wide Name number to a virtual IDE disk.

Cc: kwolf@redhat.com
Signed-off-by: Floris Bos <dev@noc-ps.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-05 14:54:39 +02:00
Floris Bos
aa2c91bdfe ide: Change serial number strncpy() to pstrcpy()
strncpy may not null-terminate the destination string.

Cc: kwolf@redhat.com
Signed-off-by: Floris Bos <dev@noc-ps.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-05 14:54:39 +02:00
Floris Bos
27e0c9a1bb ide: Add "model=s" qdev option
Allow the user to override the default disk model name "QEMU HARDDISK".

Some Linux distributions use the /dev/disk/by-id/scsi-SATA_name-of-disk-
model_serial addressing scheme when refering to partitions in /etc/fstab
and elsewhere. This causes problems when starting a disk image taken from
an existing physical server under qemu, because when running under qemu
name-of-disk-model is always "QEMU HARDDISK".

This patch introduces a model=s option which in combination with the
existing serial=s option can be used to fake the disk the operating
system was previously on, allowing the OS to boot properly.

Cc: kwolf@redhat.com
Signed-off-by: Floris Bos <dev@noc-ps.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-05 14:54:39 +02:00
Kevin Wolf
2844bdd99a ide: IDENTIFY word 86 bit 14 is reserved
Reserved bits should be cleared to zero.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-04-05 14:54:39 +02:00
Paolo Bonzini
85e8dab1ef aio: move BlockDriverAIOCB to qemu-aio.h
And remove several block_int.h inclusions that should not be there.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-04-05 14:54:39 +02:00
Stefan Weil
a348f10884 Add missing const attributes for MemoryRegionOps
Most MemoryRegionOps already had the const attribute.
This patch adds it to the remaining ones.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-03-11 11:40:15 +00:00
Paolo Bonzini
d53cdb307a ide: fail I/O to empty disk
Requesting a read or a write operation on an empty disk can lead
to QEMU dumping core.

Also fix a few braces here and there.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-02-29 12:48:46 +01:00
Anthony Liguori
7c1daf341f Merge remote-tracking branch 'qmp/queue/qmp' into staging
* qmp/queue/qmp:
  qmp: add DEVICE_TRAY_MOVED event
  ide: drop ide_tray_state_post_load()
  block: Don't call bdrv_eject() if the tray state didn't change
  block: bdrv_eject(): Make eject_flag a real bool
  block: Rename bdrv_mon_event() & BlockMonEventAction
2012-02-24 09:45:22 -06:00
Luiz Capitulino
bde25388d1 ide: drop ide_tray_state_post_load()
This is used to sync the physical tray state after migration when
using CD-ROM passthrough. However, migrating when using passthrough
is broken anyway and shouldn't be supported...

So, drop this function as it causes a problem with the DEVICE_TRAY_MOVED
event, which is going to be introduced by the next commit.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
2012-02-22 17:23:33 -02:00
Luiz Capitulino
d88b1819dd block: Don't call bdrv_eject() if the tray state didn't change
It's not needed. Besides we can then assume that bdrv_eject() is
only called when there's a tray state change, which is useful to
the DEVICE_TRAY_MOVED event (going to be added in a future
commit).

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
2012-02-22 17:23:21 -02:00
Luiz Capitulino
329c0a48a9 block: Rename bdrv_mon_event() & BlockMonEventAction
They are QMP events, not monitor events. Rename them accordingly.

Also, move bdrv_emit_qmp_error_event() up in the file. A new event will
be added soon and it's good to have them next each other.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
2012-02-22 17:22:35 -02:00
Paolo Bonzini
da22132752 ahci: use new DMA helpers
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-02-22 13:29:07 +01:00
Anthony Liguori
a19255a369 Merge remote-tracking branch 'stefanha/trivial-patches' into staging
* 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
2012-02-17 06:48:47 -06:00
Anthony Liguori
65b31cc207 Merge remote-tracking branch 'kwolf/for-anthony' into staging
* 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
2012-02-15 17:18:04 -06:00
Andreas Färber
83f7d43a9e qom: Unify type registration
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>
2012-02-15 09:39:21 -06:00
Hervé Poussineau
cb67be85a6 ide: fix compilation errors when DEBUG_IDE is set
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2012-02-10 10:44:52 +00:00
Alexander Graf
b867672884 AHCI: Masking of IRQs actually masks them
When masking IRQ lines, we should actually mask them out and not declare
them active anymore. Once we mask them in again, they are allowed to trigger
again.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-02-09 16:17:51 +01:00
Alexander Graf
c9b308d20b AHCI: Fix port reset race
bdrv_aio_cancel() can trigger bdrv_aio_flush() which makes all aio
that is currently in flight finish. So what we do is:

  port reset
  detect ncq in flight
  cancel ncq
  delete ncq sg list

at which point we have double freed the sg list. Instead, with this
patch we do:

  port reset
  detect ncq in flight
  cancel ncq
  check if we are really still in flight
  delete ncq sg list

which makes things work and gets rid of the race.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-02-09 16:17:51 +01:00
Anthony Liguori
6acbe4c6f1 qdev: remove baked in notion of aliases (v2)
Limit them to the device_add functionality.  Device aliases were a hack based
on the fact that virtio was modeled the wrong way.  The mechanism for aliasing
is very limited in that only one alias can exist for any device.

We have to support it for the purposes of compatibility but we only need to
support it in device_add so restrict it to that piece of code.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2
 - Use a table for aliases (Paolo)
2012-02-03 10:41:07 -06:00
Anthony Liguori
d307af795d qdev: kill off DeviceInfo
It is no longer used in the tree since everything is done natively through
QEMU Object Model.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-03 10:41:06 -06:00
Anthony Liguori
39bffca203 qdev: register all types natively through QEMU Object Model
This was done in a mostly automated fashion.  I did it in three steps and then
rebased it into a single step which avoids repeatedly touching every file in
the tree.

The first step was a sed-based addition of the parent type to the subclass
registration functions.

The second step was another sed-based removal of subclass registration functions
while also adding virtual functions from the base class into a class_init
function as appropriate.

Finally, a python script was used to convert the DeviceInfo structures and
qdev_register_subclass functions to TypeInfo structures, class_init functions,
and type_register_static calls.

We are almost fully converted to QOM after this commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-03 10:41:06 -06:00
Anthony Liguori
999e12bbe8 sysbus: apic: ioapic: convert to QEMU Object Model
This converts three devices because apic and ioapic are subclasses of sysbus.
Converting subclasses independently of their base class is prohibitively hard.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27 10:50:50 -06:00
Anthony Liguori
40021f0888 pci: convert to QEMU Object Model
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27 10:50:50 -06:00
Anthony Liguori
d148211c6d ide: convert to QEMU Object Model
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27 10:50:49 -06:00
Anthony Liguori
8f04ee0882 isa: pic: convert to QEMU Object Model
This converts two devices at once because PIC subclasses ISA and converting
subclasses independently is extremely hard.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27 10:50:47 -06:00
Anthony Liguori
e855761ca8 qdev: prepare source tree for code conversion
These are various small stylistic changes which help make things more
consistent such that the automated conversion script can be simpler.

It's not necessary to agree or disagree with these style changes because all
of this code is going to be rewritten by the patch monkey script anyway.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27 10:50:47 -06:00
Anthony Liguori
30fbb9fc7c qdev: move qdev->info to class
Right now, DeviceInfo acts as the class for qdev.  In order to switch to a
proper ObjectClass derivative, we need to ween all of the callers off of
interacting directly with the info pointer.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-01-27 10:50:34 -06:00
Rob Herring
d9fa31a3e2 ahci: add support for non-PCI based controllers
Add support for ahci on sysbus.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-01-26 11:43:47 +00:00
David Gibson
964455f39e Correct types in bmdma_addr_{read,write}
Back when I made patches introducing dma_addr_t and various PCI DMA
wrapper functions, I made a mistake.  The bmdma_addr_{read,write} functions
need to take target_phys_addr_t not dma_addr_t, since they are assigned
to MemoryRegionOps callbacks.

This patch corrects my error.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-01-21 05:17:01 +01:00
Hervé Poussineau
48a18b3c69 isa: give ISABus/ISADevice to isa_create(), isa_bus_irqs() and isa_get_irq() functions
NULL is a valid bus/device, so there is no change in behaviour.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-20 15:44:30 -06:00
Anthony Liguori
3cfdd0da7e Merge remote-tracking branch 'stefanha/trivial-patches' into staging 2011-12-19 09:10:49 -06:00
Paolo Bonzini
b61744b391 ide: drop argument to dma_buf_commit
The argument is unused and even wrong when the function is called
by ide_handle_rw_error.  Drop it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-16 09:53:38 +00:00
Paolo Bonzini
b9b2008bbf block: dma_bdrv_* does not return NULL
Initially attempted with the following semantic patch:

@ rule1 @
expression E;
statement S;
@@
  E =
(
   dma_bdrv_io
|  dma_bdrv_read
|  dma_bdrv_write
)
     (...);
(
- if (E == NULL) { ... }
|
- if (E)
    { <... S ...> }
)

which however did not match anything.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-12-15 12:40:08 +01:00
Paolo Bonzini
ad54ae80c7 block: bdrv_aio_* do not return NULL
Initially done with the following semantic patch:

@ rule1 @
expression E;
statement S;
@@
  E =
(
   bdrv_aio_readv
|  bdrv_aio_writev
|  bdrv_aio_flush
|  bdrv_aio_discard
|  bdrv_aio_ioctl
)
     (...);
(
- if (E == NULL) { ... }
|
- if (E)
    { <... S ...> }
)

which however missed the occurrence in block/blkverify.c
(as it should have done), and left behind some unused
variables.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-12-15 12:40:07 +01:00
Anthony Liguori
9423a2e8dd Merge remote-tracking branch 'stefanha/trivial-patches-next' into staging 2011-12-14 07:59:21 -06:00
David Gibson
859e538d50 Remove unnecessary casts from PCI DMA code in PCI IDE
This patch removes some unnecessary casts in the PCI IDE device,
introduced by commit 552908fef5
'PCI IDE: Use PCI DMA stub functions'.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-12-12 11:16:52 -06:00
Dong Xu Wang
66a0a2cb81 fix spelling in hw sub directory
Correct obvious spelling errors in qemu/hw directory.

Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-06 09:56:41 +00:00
Dong Xu Wang
3a93113a00 fix typo: delete redundant semicolon
Double semicolons should be single.

Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-12-06 09:56:41 +00:00
Anthony Liguori
eb5d5beaeb Merge remote-tracking branch 'kwolf/for-anthony' into staging 2011-12-05 09:39:25 -06:00
Stefan Hajnoczi
922453bca6 block: convert qemu_aio_flush() calls to bdrv_drain_all()
Many places in QEMU call qemu_aio_flush() to complete all pending
asynchronous I/O.  Most of these places actually want to drain all block
requests but there is no block layer API to do so.

This patch introduces the bdrv_drain_all() API to wait for requests
across all BlockDriverStates to complete.  As a bonus we perform checks
after qemu_aio_wait() to ensure that requests really have finished.

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-12-05 14:56:06 +01:00
Avi Kivity
9d7f1b9aa5 ide/mmio: convert to memory API
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-11-24 18:31:59 +02:00
Paolo Bonzini
2c20ae11ad atapi: kill MODE SENSE(6), fix MODE SENSE(10)
Mode page 2A of emulated ATAPI DVD-ROM should have page length 0x14
like SCSI CD-ROM, rather than 0x12.

Mode page length is off by 8, as it should contain the length of the
payload after the first two bytes.

MODE SENSE(6) should be thrown out of ATAPI DVD-ROM emulation.  It is
not specified in the ATAPI list of MMC-2, and MMC-5 prescribes to use
MODE SENSE(10).  Anyway, its implementation is wrong.

Reported-by: Thomas Schmitt <scdbackup@gmx.net>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-11-18 13:54:32 +01:00
Paolo Bonzini
2df0a3a308 atapi: implement eject requests
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-11-11 14:02:57 +01:00
David Gibson
552908fef5 PCI IDE: Use PCI DMA stub functions
This updates the PCI IDE device emulation to use the explicit PCI DMA
wrapper to initialize its scatter/gathjer structure.  This means this
driver should not need further changes when the sglist interface is
extended to support IOMMUs.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-01 16:52:07 -05:00
Anthony Liguori
8494a397b6 Merge remote-tracking branch 'kwolf/for-anthony' into staging
Conflicts:
	block/vmdk.c
2011-10-31 11:09:00 -05:00
Paolo Bonzini
a07c7dcd6f atapi/scsi-disk: make mode page values coherent between the two
This patch adds to scsi-disk the missing mode page 0x01 for both disk
and CD-ROM drives, and mode page 0x0e for CD drives only.

A few offsets were wrong in atapi.c.  Also change the 2Ah mode page to
expose DVD media read capabilities in the IDE cdrom.  This lets you run
dvd+rw-mediainfo on the virtual DVD drives.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-28 19:25:50 +02:00
Paolo Bonzini
af0e1ea2d3 atapi: cleanup/fix mode sense results
The first two bytes (after the 8-byte ATAPI header) are the mode page
number and the number of bytes after the length field itself.  Make
this clear in the code.

The AUDIO_CTL page was filled with wrong values.  It is not anymore in
MMC, but at least keep the values sane.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-28 19:25:50 +02:00
Paolo Bonzini
f0f992e650 atapi: move GESN definitions to scsi-defs.h
As a complement to the previous patch, move definitions for GET EVENT
STATUS NOTIFICATION from the two functions to scsi-defs.h.

The NCR_* constants are just bit values corresponding to the ENC_*
values, with no offsets even, so keep just one copy.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-28 19:25:50 +02:00
Paolo Bonzini
67cc61e430 atapi/scsi: unify definitions for MMC
The definitions in ide/internal.h are duplicates, since ATAPI commands
actually come from SCSI.  Use the ones in scsi-defs.h and move the
missing ones there.  Two exceptions:

- MODE_PAGE_WRITE_PARMS conflicts with the "flexible disk geometry"
page in scsi-disk.c.  It is unused, so pick the latter.

- GPCMD_* is left in ide/internal.h, at least for now.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-28 19:25:50 +02:00
Kevin Wolf
fb60105d49 ide: Fix off-by-one error in array index check
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2011-10-28 19:25:49 +02:00
Max Filippov
3899edf7e4 ahci: fix DPRINTF format strings
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-26 14:22:40 +01:00
Anthony Liguori
2a22e6eb1b Merge remote-tracking branch 'kwolf/for-anthony' into staging 2011-10-14 12:36:50 -05:00
Anthony Liguori
36f490b176 Merge remote-tracking branch 'qemu-kvm-tmp/memory/batch' into staging 2011-10-14 10:44:52 -05:00
Richard Henderson
4a91d3b337 ide: Convert to isa_register_portio_list
Signed-off-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Avi Kivity <avi@redhat.com>
2011-10-11 15:57:11 +02:00
Luiz Capitulino
50fb19008f ide: Support I/O status
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-10-11 09:42:39 +02:00
Luiz Capitulino
0461d5a699 RunState: Rename enum values as generated by the QAPI
Next commit will convert the query-status command to use the
RunState type as generated by the QAPI.

In order to "transparently" replace the current enum by the QAPI
one, we have to make some changes to some enum values.

As the changes are simple renames, I'll do them in one shot. The
changes are:

 - Rename the prefix from RSTATE_ to RUN_STATE_
 - RUN_STATE_SAVEVM to RUN_STATE_SAVE_VM
 - RUN_STATE_IN_MIGRATE to RUN_STATE_INMIGRATE
 - RUN_STATE_PANICKED to RUN_STATE_INTERNAL_ERROR
 - RUN_STATE_POST_MIGRATE to RUN_STATE_POSTMIGRATE
 - RUN_STATE_PRE_LAUNCH to RUN_STATE_PRELAUNCH
 - RUN_STATE_PRE_MIGRATE to RUN_STATE_PREMIGRATE
 - RUN_STATE_RESTORE to RUN_STATE_RESTORE_VM
 - RUN_STATE_PRE_MIGRATE to RUN_STATE_FINISH_MIGRATE

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-10-04 11:02:57 -03:00
Daniel Verkamp
465f1ab161 ahci: add port I/O index-data pair
Implement an I/O space index-data register pair as defined by the AHCI
spec, including the corresponding SATA PCI capability and BAR.

This allows real-mode code to access the AHCI registers; real-mode
code cannot address the memory-mapped register space because it is
beyond the first megabyte.

Signed-off-by: Daniel Verkamp <daniel@drv.nu>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-21 14:32:20 +02:00
Anthony Liguori
c8af89af96 Merge remote-tracking branch 'kwolf/for-anthony' into staging 2011-09-20 15:21:03 -05:00
Alexander Motin
a26a13da68 AHCI Port Interrupt Enable register cleaning on soft reset
I've found that FreeBSD AHCI driver doesn't work with AHCI hardware
emulation of QEMU 0.15.0. I believe the problem is on QEMU's side. As I
see, it clears port's Interrupt Enable register each time when reset of
any level happens. Is is reasonable for the global controller reset. It
is probably not good, but acceptable for FreeBSD driver for the port
hard reset. But it is IMO wrong for the device soft reset. None of real
hardware I know behaves that way.

Signed-off-by: Alexander Motin <mav@FreeBSD.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-20 12:27:44 +02:00
Paolo Bonzini
bbca72c621 dma-helpers: rename is_write to to_dev
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-19 11:35:33 +02:00
Luiz Capitulino
1dfb4dd993 Replace the VMSTOP macros with a proper state type
Today, when notifying a VM state change with vm_state_notify(),
we pass a VMSTOP macro as the 'reason' argument. This is not ideal
because the VMSTOP macros tell why qemu stopped and not exactly
what the current VM state is.

One example to demonstrate this problem is that vm_start() calls
vm_state_notify() with reason=0, which turns out to be VMSTOP_USER.

This commit fixes that by replacing the VMSTOP macros with a proper
state type called RunState.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-09-15 16:39:32 -03:00
Stefan Weil
847f171e6a ahci: Remove unused struct member
Member variable is_read is written, but never read
(contrary to its name). Remove it.

Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:22 +02:00
Markus Armbruster
25ad22bc4e ide/atapi scsi-disk: Make monitor eject -f, then change work
change fails while the tray is locked by the guest.  eject -f forces
it open and removes any media.  Unfortunately, the tray closes again
instantly.  Since the lock remains as it is, there is no way to insert
another medium unless the guest voluntarily unlocks.

Fix by leaving the tray open after monitor eject.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:22 +02:00
Markus Armbruster
7d4b4ba5c2 block: New change_media_cb() parameter load
To let device models distinguish between eject and load.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:22 +02:00
Markus Armbruster
7b6f9300d5 block: New bdrv_set_buffer_alignment()
Device models should be able to set it without an unclean include of
block_int.h.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:22 +02:00
Markus Armbruster
fb0c61a5a5 hw: Trim superfluous #include "block_int.h"
Including it in device models is unclean, including it without a
reason adds insult to injury.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:21 +02:00
Markus Armbruster
d1a0739de5 block: Move BlockConf & friends from block_int.h to block.h
It's convenience stuff for block device models, so block.h isn't the
ideal home either, but better than block_int.h.

Permits moving some #include "block_int.h" from device model .h into
.c.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:21 +02:00
Markus Armbruster
e4def80b36 block: Show whether the virtual tray is open in info block
Need to ask the device, so this requires new BlockDevOps member
is_tray_open().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:21 +02:00
Markus Armbruster
9e6a4c9177 block: Drop BlockDriverState member removable
It's a confused mess (see previous commit).  No users remain.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:21 +02:00
Markus Armbruster
db118fe725 ide/atapi: Preserve tray state on migration
Use a subsection, so that migration to older version still works,
provided the tray is closed and unlocked.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:21 +02:00
Markus Armbruster
48f65b3f52 ide/atapi: Don't fail eject when tray is already open
MMC-5 6.40.2.6 specifies that START STOP UNIT succeeds when the drive
already has the requested state.  cmd_start_stop_unit() fails when
asked to eject while the tray is open and locked.  Fix that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:21 +02:00
Markus Armbruster
025e849a50 block: Rename bdrv_set_locked() to bdrv_lock_medium()
While there, make the locked parameter bool.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:20 +02:00
Markus Armbruster
f107639a6f block: Drop medium lock tracking, ask device models instead
Requires new BlockDevOps member is_medium_locked().  Implement for IDE
and SCSI CD-ROMs.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:20 +02:00
Markus Armbruster
fdec4404dd block: Leave enforcing tray lock to device models
The device model knows best when to accept the guest's eject command.
No need to detour through the block layer.

bdrv_eject() can't fail anymore.  Make it void.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:20 +02:00
Markus Armbruster
a0a7573b84 ide/atapi: Track tray locked state
We already track it in BlockDriverState.  Just like tray open/close
state, we should track it in the device models instead, because it's
device state.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:20 +02:00
Markus Armbruster
a1aff5bf67 block: Revert entanglement of bdrv_is_inserted() with tray status
Commit 4be9762a changed bdrv_is_inserted() to fail when the tray is
open.  Unfortunately, there are two different kinds of users, with
conflicting needs.

1. Device models using bdrv_eject(), currently ide-cd and scsi-cd.
They expect bdrv_is_inserted() to reflect the tray status.  Commit
4be9762a makes them happy.

2. Code that wants to know whether a BlockDriverState has media, such
as find_image_format(), bdrv_flush_all().  Commit 4be9762a makes them
unhappy.  In particular, it breaks flush on VM stop for media ejected
by the guest.

Revert the change to bdrv_is_inserted().  Check the tray status in the
device models instead.

Note on IDE: Since only ATAPI devices have a tray, and they don't
accept ATA commands since the recent commit "ide: Reject ATA commands
specific to drive kinds", checking in atapi.c suffices.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:20 +02:00
Markus Armbruster
dd06333392 ide/atapi: Track tray open/close state
We already track it in BlockDriverState since commit 4be9762a.  As
discussed in that commit's message, we should track it in the device
device models instead, because it's device state.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:20 +02:00
Markus Armbruster
f077656418 ide/atapi: Clean up misleading name in cmd_start_stop_unit()
"eject" is misleading; it means "eject" when start is clear, but
"load" when start is set.  Rename to loej, because that's how MMC-5
calls it, in section 6.40.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:19 +02:00
Markus Armbruster
3cfc22692e ide: Reject ATA commands specific to drive kinds
ACS-2 Table B.2 explicitly prohibits ATAPI devices from implementing
WIN_RECAL, WIN_READ_EXT, WIN_READDMA_EXT, WIN_READ_NATIVE_MAX,
WIN_MULTREAD_EXT, WIN_WRITE, WIN_WRITE_ONCE, WIN_WRITE_EXT,
WIN_WRITEDMA_EXT, WIN_MULTWRITE_EXT, WIN_WRITE_VERIFY, WIN_VERIFY,
WIN_VERIFY_ONCE, WIN_VERIFY_EXT, WIN_SPECIFY, WIN_MULTREAD,
WIN_MULTWRITE, WIN_SETMULT, WIN_READDMA, WIN_READDMA_ONCE,
WIN_WRITEDMA, WIN_WRITEDMA_ONCE, WIN_FLUSH_CACHE_EXT.  Restrict them
to IDE_HD and IDE_CFATA.

Same for CFA_WRITE_SECT_WO_ERASE, CFA_WRITE_MULTI_WO_ERASE.  Restrict
them to IDE_CFATA, like the other CFA_ commands.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:19 +02:00
Markus Armbruster
844505b12e ide: Use a table to declare which drive kinds accept each command
No functional change.

It would be nice to have handler functions in the table, like commit
e1a064f9 did for ATAPI.  Left for another day.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:19 +02:00
Markus Armbruster
3f76a7c381 ide: Fix ATA command READ to set ATAPI signature for CD-ROM
Must set the ATAPI device signature, see ATA4 8.27.5.2 Outputs for
PACKET Command feature set devices, and ACS-2 7.36.6 Outputs for
PACKET feature set devices.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-12 15:17:18 +02:00
Markus Armbruster
f9e8fda479 xen: Clean up pci_piix3_xen_ide_unplug()'s test for "not a CD"
pci_piix3_xen_ide_unplug() unplugs only disks, not CD-ROMs.  It peeks
into the DriveInfo's BlockDriverState to distinguish between the two.
Unclean; use DriveInfo member media_cd, like xen_config_dev_blk().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06 11:24:07 +02:00
Markus Armbruster
656fbeff92 ide: Give vmstate structs internal linkage where possible
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06 11:24:06 +02:00
Markus Armbruster
814839c00b ide: Clean up case label indentation in ide_exec_cmd()
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06 11:23:51 +02:00
Markus Armbruster
1d4316d385 ide: Update command code definitions as per ACS-2 Table B.2
Drop WIN_SRST, it has the same value as WIN_DEVICE_RESET.

Drop unused WIN_RESTORE, it has the same value as WIN_RECAL.

Drop codes that are not implemented and long obsolete: WIN_READ_LONG,
WIN_READ_LONG_ONCE, WIN_WRITE_LONG, WIN_WRITE_LONG_ONCE, WIN_FORMAT
(all obsolete since ATA4), WIN_ACKMEDIACHANGE, WIN_POSTBOOT,
WIN_PREBOOT (obsolete since ATA3), WIN_WRITE_SAME (obsolete since
ATA3, code reused for something else in ACS2), WIN_IDENTIFY_DMA
(obsolete since ATA4).

Drop codes that are not implemented and vendor-specific:
EXABYTE_ENABLE_NEST, DISABLE_SEAGATE.

Drop WIN_INIT, it isn't implemented, its value used to be reserved,
and is used for something else since ATA8.

CFA_IDLEIMMEDIATE isn't specific to CFATA.  ACS-2 shows it as a
defined command in ATA-1, -2 and -3.  Rename to WIN_IDLEIMMEDIATE2.

Mark vendor specific, retired, and obsolete codes.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06 11:23:51 +02:00
Markus Armbruster
145feb176f block: Split change_cb() into change_media_cb(), resize_cb()
Multiplexing callbacks complicates matters needlessly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06 11:23:51 +02:00
Markus Armbruster
0e49de5232 block: Generalize change_cb() to BlockDevOps
So we can more easily add device model callbacks.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06 11:23:51 +02:00
Markus Armbruster
fa879d62eb block: Attach non-qdev devices as well
For now, this just protects against programming errors like having the
same drive back multiple non-qdev devices, or untimely bdrv_delete().
Later commits will add other interesting uses.

While there, rename BlockDriverState member peer to dev, bdrv_attach()
to bdrv_attach_dev(), bdrv_detach() to bdrv_detach_dev(), and
bdrv_get_attached() to bdrv_get_attached_dev().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-09-06 11:23:51 +02:00
Stefan Weil
541dc0d47f Use new macro QEMU_PACKED for packed structures
Most changes were made using these commands:

git grep -la '__attribute__((packed))'|xargs perl -pi -e 's/__attribute__\(\(packed\)\)/QEMU_PACKED/'
git grep -la '__attribute__ ((packed))'|xargs perl -pi -e 's/__attribute__ \(\(packed\)\)/QEMU_PACKED/'
git grep -la '__attribute__((__packed__))'|xargs perl -pi -e 's/__attribute__\(\(__packed__\)\)/QEMU_PACKED/'
git grep -la '__attribute__ ((__packed__))'|xargs perl -pi -e 's/__attribute__ \(\(__packed__\)\)/QEMU_PACKED/'
git grep -la '__attribute((packed))'|xargs perl -pi -e 's/__attribute\(\(packed\)\)/QEMU_PACKED/'

Whitespace in linux-user/syscall_defs.h was fixed manually
to avoid warnings from scripts/checkpatch.pl.

Manual changes were also applied to hw/pc.c.

I did not fix indentation with tabs in block/vvfat.c.
The patch will show 4 errors with scripts/checkpatch.pl.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-09-03 10:45:59 +00:00
Christoph Hellwig
a597e79ce1 block: explicit I/O accounting
Decouple the I/O accounting from bdrv_aio_readv/writev/flush and
make the hardware models call directly into the accounting helpers.

This means:
 - we do not count internal requests from image formats in addition
   to guest originating I/O
 - we do not double count I/O ops if the device model handles it
   chunk wise
 - we only account I/O once it actuall is done
 - can extent I/O accounting to synchronous or coroutine I/O easily
 - implement I/O latency tracking easily (see the next patch)

I've conveted the existing device model callers to the new model,
device models that are using synchronous I/O and weren't accounted
before haven't been updated yet.  Also scsi hasn't been converted
to the end-to-end accounting as I want to defer that after the pending
scsi layer overhaul.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-08-25 18:18:42 +02:00
Anthony Liguori
7267c0947d Use glib memory allocation and free functions
qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-20 23:01:08 -05:00
Avi Kivity
e824b2cc3b pci: rename pci_register_bar_region() to pci_register_bar()
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08 10:22:30 -05:00
Avi Kivity
23c5e4cab2 ppc: convert to memory API
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08 10:22:29 -05:00
Avi Kivity
67e576c262 ahci: convert to memory API
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08 10:22:29 -05:00
Avi Kivity
a9deb8c69a ide: convert to memory API
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-08 10:15:54 -05:00
Anthony Liguori
3046c98404 Merge remote-tracking branch 'agraf/xen-next' into staging 2011-07-29 09:42:12 -05:00
Anthony Liguori
e374560232 Merge remote-tracking branch 'kraxel/migration.2' into staging 2011-07-29 09:39:37 -05:00
Stefano Stabellini
679f4f8b17 xen: implement unplug protocol in xen_platform
The unplug protocol is necessary to support PV drivers in the guest: the
drivers expect to be able to "unplug" emulated disks and nics before
initializing the Xen PV interfaces.
It is responsibility of the guest to make sure that the unplug is done
before the emulated devices or the PV interface start to be used.

We use pci_for_each_device to walk the PCI bus, identify the devices and
disks that we want to disable and dynamically unplug them.

Changes in v2:

- use PCI_CLASS constants;

- replace pci_unplug_device with qdev_unplug;

- do not import hw/ide/internal.h in xen_platform.c;

Changes in v3:

- introduce piix3-ide-xen, that support hot-unplug;

- move the unplug code to hw/ide/piix.c;

- just call qdev_unplug from xen_platform.c to unplug the IDE disks;

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2011-07-26 07:02:17 +02:00
Markus Armbruster
e0e8384dd4 ide: Turn properties any IDE device must have into bus properties
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-23 11:21:29 -05:00
Gerd Hoffmann
b7ce1b27f6 ahci doesn't support migration
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-07-20 14:49:41 +02:00
Kevin Wolf
c925400ba8 ide: Initialise buffers with zeros
Just in case there's still a way how a guest can read out buffers when it's not
supposed to, let's zero the buffers during initialisation so that we don't leak
information to the guest.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2011-07-05 11:23:43 +02:00
Kevin Wolf
40c4ed3f95 ide: Ignore reads during PIO in and writes during PIO out
This fixes https://bugs.launchpad.net/qemu/+bug/786209:

    When the DRQ_STAT bit is set, the IDE core permits both data reads
    and data writes, regardless of whether the current transfer was
    initiated as a read or write.

    This potentially leaks uninitialized host memory into the guest,
    if, before doing anything else to an IDE device, the guest begins a
    write transaction (e.g. WIN_WRITE), but then *reads* from the IO
    port instead of writing to it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2011-07-05 11:23:42 +02:00
Anthony Liguori
fdba9594df Merge remote-tracking branch 'mst/for_anthony' into staging
Conflicts:
	hw/usb-uhci.c
2011-06-22 07:11:09 -05:00
Michael S. Tsirkin
befeac45d4 Merge remote-tracking branch 'origin/master' into pci
Conflicts:
	hw/virtio-pci.c
2011-06-15 18:27:15 +03:00
Kevin Wolf
ee752da74f ide: Clear error_status after restarting flush
Clearing the error status flag was missing for restarting flushes. Now that the
error status is separate from the BM status register, we can simply set it to 0
after restarting the request. This ensures that we never forget to clear a bit.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-06-15 15:39:13 +02:00
Christoph Hellwig
d353fb72f5 ide: add TRIM support
Add support for TRIM sub function of the data set management command,
and wire it up to the qemu discard infrastructure.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-06-15 14:36:16 +02:00
Christoph Hellwig
4e1e00515e ide: allow other dma comands than read and write
Replace the is_read flag with a dma_cmd flag to allow the dma and
restart logic to handler other commands like TRIM.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-06-15 14:36:16 +02:00
Kevin Wolf
0754f9ecef ide: Add forgotten VMSTATE_END_OF_LIST in subsection
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-06-15 14:36:16 +02:00
Kevin Wolf
fdc650d76d ide: Fix ide_drive_pio_state_needed()
When a failed PIO request caused the VM to stop, we still need to transfer the
PIO state even though DRQ=0 at this point.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-06-15 14:36:15 +02:00
Kevin Wolf
def93791f2 ide: Split error status from status register
When adding the werror=stop mode, some flags were added to s->status
which are used to determine what kind of operation should be restarted
when the VM is continued.

Unfortunately, it turns out that s->status is in fact a device register
and as such is visible to the guest (some of the abused bits are even
writable for the guest).

For migration we keep on using the old VMState field (renamed to
migration_compat_status) if the status register doesn't use any of the
previously abused bits. If it does, we use a subsection with a clean copy of
the status register.

The error status is always sent in a subsection if there is any error. It can't
use the old field because errors happen even without PCI.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-06-15 14:36:15 +02:00
Isaku Yamahata
65ff544b41 hw/ide/via.c: convert to PCIDeviceInfo to initialize ids
use PCIDeviceInfo to initialize ids.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-06-12 10:33:35 +03:00
Isaku Yamahata
03f1c14379 hw/ide/ich.c: convert to PCIDeviceInfo to initialize ids
use PCIDeviceInfo to initialize ids.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-06-12 10:33:35 +03:00
Isaku Yamahata
c04ca0756d hw/ide/cmd646.c: convert to PCIDeviceInfo to initialize ids
use PCIDeviceInfo to initialize ids.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-06-12 10:33:35 +03:00
Isaku Yamahata
25f8e2f512 ide/piix: convert to PCIDeviceInfo to initialize ids
use PCIDeviceInfo to initialize ids.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-06-12 10:33:33 +03:00
Kevin Wolf
69c38b8fce ide/core: Remove explicit setting of BM_STATUS_INT
BM_STATUS_INT is automatically set during ide_set_irq(), there's no reason to
set it manually in addition.

There is even one case where the interrupt status bit was set, but no IRQ was
raised. This is when the PRD table was reached but there is more data to
transfer. The correct behaviour for this case is not to set BM_STATUS_INT.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-06-08 10:39:32 +02:00
Alexander Graf
1fddfba129 ahci: Fix non-NCQ accesses for LBA > 16bits
AHCI provides two ways of reading/writing data:

 1) NCQ
 2) ATA commands with the LBA in the command FIS

In the second code path, we didn't handle any LBAs that were bigger than
16 bits, so whenever a guest that used high LBA numbers wanted to access
data, the LBA got truncated down to 16 bits, giving the guest garbage.

This patch adds support for LBAs higher than 16 bits. I've tested that it
works just fine with SeaBIOS and Linux guests. This patch also unbreaks
the often reported grub errors people have seen with AHCI.

Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-05-19 12:08:28 +02:00
Markus Armbruster
95b5edcd92 blockdev: Store -drive option media in DriveInfo
DriveInfo is closely tied to -drive, and like -drive, it mixes
information about host and guest part of the block device.  Unlike
DriveInfo, BlockDriverState should be about the host part only.

One of the remaining guest bits there is the "type hint".  -drive
option media sets it, and qdevs "ide-drive", "scsi-disk" and non-qdev
IF_XEN devices check it to pick HD vs. CD.

Communicate -drive option media via new DriveInfo member media_cd
instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-05-19 10:26:21 +02:00
Markus Armbruster
1f56e32a7f ide: Split qdev "ide-drive" into "ide-hd" and "ide-cd"
An "ide-drive" is either a hard disk or a CD-ROM, depending on the
associated BlockDriverState's type hint.  Unclean; disk vs. CD belongs
to the guest part, not the host part.

Have separate qdevs "ide-hd" and "ide-cd" to model disk vs. CD in
the guest part.

Keep ide-drive for backward compatibility.

"ide-disk" would perhaps be a nicer name than "ide-hd", but there's
already "scsi-disk", which is like "ide-drive", and will be likewise
split in the next commit.  {ide,scsi}-{hd,cd} is the best consistent
set of names I could find within the backward compatibility
straightjacket.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-05-19 10:26:04 +02:00
Jan Kiszka
4d29b50a41 ahci: Fix crashes on duplicate BH registration
If ahci_dma_set_inactive is called a while there is still a pending BH
from a previous run, we will crash on the second run of
ahci_check_cmd_bh as it overwrites AHCIDevice::check_bh. Avoid this
broken and redundant duplicate registration.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-05-18 14:38:46 +02:00
Kevin Wolf
2860e3eb96 ide: Turn debug messages into assertions
These printfs aren't really debug messages, but clearly indicate a bug if they
ever become effective. Noone uses DEBUG_IDE, let's re-enable the check
unconditionally and make it an assertion instead of printfs in the device
emulation.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-05-18 14:38:45 +02:00
Andrea Arcangeli
086cf4d3bd ide: cleanup warnings
Add \n.

Signed-off-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-05-18 14:38:45 +02:00
Jan Kiszka
96d19bcbf5 ahci: Unbreak bar registration
Fix regression of 667bb59: ahci_init initializes ahci.mem, so we have to
move bar registration after it.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-05-16 10:15:47 -05:00
Michael S. Tsirkin
69c8944f17 ich/ahci: fix uninitialized memory use
The commit 667bb59d23
uses d->ahci.mem before it is initialized by
ahci_init(). Fix this by calling ahci_init() first thing
so that it's safe to use all fields in the ahci state struct.

Reported-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Reported-by: Jan Kiszka <jan.kiszka@web.de>
Tested-by: Alexey Zaytsev <alexey.zaytsev@gmail.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-05-16 14:23:45 +03:00
Michael S. Tsirkin
5300f1a548 Merge remote branch 'origin/master' into pci
Conflicts:
	exec.c
2011-05-05 16:39:47 +03:00
Jan Kiszka
45fe15c25a MSI: Robust resource release
msi_init may fail, so we need to check on uninit if the cap was
actually installed. This also avoids that the users need to check.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2011-05-05 16:10:08 +03:00
Alon Levy
ab71982716 ide/atapi: fix set but unused
Signed-off-by: Alon Levy <alevy@redhat.com>
Acked-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-05-03 11:29:21 +02:00
Amit Shah
4a737d14d0 atapi: Explain why we need a 'media not present' state
After the re-org of the atapi code, it might not be intuitive for a
reader of the code to understand why we're inserting a 'media not
present' state between cd changes.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2011-05-03 11:29:21 +02:00