Commit Graph

190 Commits

Author SHA1 Message Date
Isaku Yamahata
1442125843 pci: 64bit bar support.
implemented pci 64bit bar support.
The tricky bit is pci_update_mapping().
An OS is allowed to set the BAR such that OS can't address the area
pointed by BAR. It doesn't make sense, though.
In that case, don't map the BAR.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:09 -06:00
Isaku Yamahata
4f8589e115 pci: typedef pcibus_t as uint64_t instead of uint32_t.
This patch is preliminary for 64bit bar.
For 64bit bar support, change pcibus_t which represents
pci bus addr/size from uint32_t to uint64_t.
And also change FMT_pcibus for printf.

In pci_update_mapping() checks 32bit overflow.
So the check must be updated too.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:08 -06:00
Isaku Yamahata
89e8b13c53 pci: introduce FMT_PCIBUS for printf format for pcibus_t.
This patch is preliminary for 64bit BAR.
Later pcibus_t will be changed from uint32_t to uint64_t.
Introduce FMT_PCIBUS for printf format for pcibus_t.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:08 -06:00
Isaku Yamahata
6e355d901b pci: introduce pcibus_t to represent pci bus address/size instead of uint32_t
This patch is preliminary for 64 bit BAR support.
Introduce dedicated type, pcibus_t, to represent pci bus address/size
instead of uint32_t.
Later this type will be changed to uint64_t.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:08 -06:00
Isaku Yamahata
b3b1169731 pci: make pci_bar() aware of header type 1.
make pci_bar() aware of header type 1. When PCI_ROM_SLOT
it should return PCI_ROM_ADDRESS1 (!= PCI_ROM_ADDRESS)

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:07 -06:00
Isaku Yamahata
5029fe12dc pci: clean up of pci_default_read_config.
This patch cleans up pci_default_read_config() removing
ugly length and range check.

Suggested by "Michael S. Tsirkin" <mst@redhat.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:07 -06:00
Isaku Yamahata
0392a017ae pci: s/PCI_ADDRESS_SPACE_/PCI_BASE_ADDRESS_SPACE_/ to match pci_regs.h
make constants for pci base address match pci_regs.h by
renaming PCI_ADDRESS_SPACE_xxx to PCI_BASE_ADDRESS_SPACE_xxx.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:07 -06:00
Isaku Yamahata
67a51b48c8 pci: clean up pci_init_wmask()
use pci_set_word() for pci command register.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:05 -06:00
Isaku Yamahata
74c01823ba pci/bridge: clean up of pci_bridge_initfn()
- use symbolic constant
- use helper function pci_set_xxx()
- removed lines which initializes to 0.
  It is unnecessary because it is already zeroed.
- add some comments on command registers.

Some initial values are suspicious because they seems to
be specific to apb_pci.c which is the only user of pci bridge right now.
For now don't touch those values to avoid breakage.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:05 -06:00
Isaku Yamahata
b0ff8eb2d0 pci: use helper functions to access pci config space.
use pci_[gs]et_{byte, word, long}() to access pci configuration
space.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:05 -06:00
Isaku Yamahata
182f9c8a64 pci: define a constant to represent a unmapped bar and use it.
define a constant to represent a unmapped bar instead of -1 and use it.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:04 -06:00
Isaku Yamahata
2217dcfff5 pci: use PCI_SLOT() and PCI_FUNC().
use PCI_SLOT() and PCI_FUNC() where appropriate instead of
direct use of bit operation.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:04 -06:00
Isaku Yamahata
e369cad7cd pci: introduce constant PCI_NUM_PINS for the number of interrupt pins, 4.
introduce constant PCI_NUM_PINS for the number of interrupt pins, 4.
and use it.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:04 -06:00
Isaku Yamahata
2e49d64ac7 pci: fix PCI_DPRINTF() wrt variadic macro.
add missing ## in PCI_DPRINTF() to compile.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-09 08:43:04 -06:00
Juan Quintela
c7bde57205 vmstate: Unfold VMSTATE_INT32_VARRAY() only use and remove it
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27 12:28:51 -05:00
Gerd Hoffmann
1cc33683c8 zap DeviceState->nd
No users left.
Also cleanup obsolete helper functions.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27 12:28:41 -05:00
Gerd Hoffmann
dc7aff118b prepare pci nic init path for qdev property configuration.
Initialization path will work with both converted and not-converted
drivers, so we can convert drivers one by one.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27 12:28:38 -05:00
Mark McLoughlin
dea7b3b95a net: remove id field from NICInfo
Just use the name field instead since we now use the id paramater as
the name, if supplied. Only implication with this change is that if
id is not supplied, the value of the name paramater is used as an
id.

Patchworks-ID: 35512
Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-15 09:32:00 -05:00
Markus Armbruster
e23a1b33b5 New qdev_init_nofail()
Like qdev_init(), but terminate program via hw_error() instead of
returning an error value.

Use it instead of qdev_init() where terminating the program on failure
is okay, either because it's during machine construction, or because
we know that failure can't happen.

Because relying in the latter is somewhat unclean, and the former is
not always obvious, it would be nice to go back to qdev_init() in the
not-so-obvious cases, only with proper error handling.  I'm leaving
that for another day, because it involves making sure that error
values are properly checked by all callers.

Patchworks-ID: 35168
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-07 08:54:54 -05:00
Markus Armbruster
33e66b86d8 Check return value of qdev_init()
But do so only where it may actually fail.  Leave the rest for the
next commit.

Patchworks-ID: 35167
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-07 08:54:54 -05:00
Michael S. Tsirkin
0f457d91c4 qemu/pci: make pci not depend on msix
Making pci device cleanup msix automatically makes pci.c depend on
msix.c, which is IMO messy.  Since devices do msix_init it's easy and
natural for them to also do msix_uninit.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06 14:36:13 -05:00
Michael S. Tsirkin
05fcfada5e qemu/pci: clarify pci config load routine
PCI load routine has to be called with size equal to 256 (otherwise it
will crash in weird ways).  So assert this, making code clearer.
Also avoid dynamically sized array on stack - good for portability.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06 14:36:13 -05:00
Anthony Liguori
e52eb611db Revert "Fix exit on 'pci_add' Monitor command"
This reverts commit 0148fde54c.

As requested by Luiz.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-06 14:36:09 -05:00
Markus Armbruster
499cf1027f Rename pci_create_noinit() to pci_create()
It's qdev_create() specialized for PCI, so name it accordingly.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:53 -05:00
Markus Armbruster
3312958dba pci_create() is now unused, remove it
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:53 -05:00
Markus Armbruster
07caea315a Fix pci_add nic not to exit on bad model
Monitor command "pci_add ADDR nic model=MODEL" uses pci_nic_init() to
create the NIC.  When MODEL is unknown or "?", this prints to stderr
and terminates the program.

Change pci_nic_init() not to treat "?" specially, and to return NULL
on failure.  Switch uses during startup to new convenience wrapper
pci_nic_init_nofail(), which behaves just like pci_nic_init() used to
do.

Bonus bug fix: we now check for qdev_init() failing there.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:53 -05:00
Markus Armbruster
9ee05825d9 Make it obvious that pci_nic_init() can't fail
Before this patch, pci_nic_init() returns NULL when it can't find the
model in pci_nic_models[].  Except this can't happen, because
qemu_check_nic_model_list() just searched for model in
pci_nic_models[], and terminated the program on failure.

Repeating the search here is pointless.  Instead, change
qemu_check_nic_model_list() to return the model's array index.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:53 -05:00
Markus Armbruster
49bd1458da Fix pci_add storage not to exit on bad first argument
Monitor command "pci_add ADDR storage ..." does its work in
qemu_pci_hot_add_nic().  It called pci_create(..., ADDR) to create the
device.  That's wrong, because pci_create() terminates the program
when ADDR is invalid.

Use pci_get_bus_devfn() and pci_create_noinit() instead.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:53 -05:00
Michael S. Tsirkin
c0b1905b28 qemu/pci: reset device registers on bus reset
Reset BARs and a couple of other registers on bus reset, as per PCI
spec.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:51 -05:00
Michael S. Tsirkin
5330de099a qemu/pci: refactor code/symbolic constants
refactor code slightly, adding symbolic constants and functions, and
using macros where possible.  This will also make following reset
patches easier.

No functional changes.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:51 -05:00
Gerd Hoffmann
ee995ffbf7 pci: hotplug windup
Create qdev infrastructure for pci hotplug.  PCI bus implementations
must register a handler for hotplug.  Creating a new PCI device will
automagically hot-plug it in case the PCI bus in question supports this.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:49 -05:00
Gerd Hoffmann
e3936fa574 pci: move unregister from PCIDevice to PCIDeviceInfo
One more cleanup while being at it ;)

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:48 -05:00
Gerd Hoffmann
a36a344dcd pci: use qdev for device destruction.
pci_unregister_device is static now and hooked into Devicestate->exit.
qdev_free(pci_device) works now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:48 -05:00
Gerd Hoffmann
0358718275 convert pci bridge to qdev
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:47 -05:00
Gerd Hoffmann
21eea4b38f support inplace allocation for pci bus, split irq init.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:47 -05:00
Luiz Capitulino
0148fde54c Fix exit on 'pci_add' Monitor command
If the user issues one of the following commands to the Monitor:

pci_add pci_addr=auto nic model=None
pci_add pci_addr=auto nic model=?

QEMU will exit, because the function used to perform sanity
checks (qemu_check_nic_model_list()) exits on error.

This function is used by the startup code, where it makes
sense to exit on error, but in the Monitor it doesn't.

Changing qemu_check_nic_model_list() to not exit on error
is not possible though, as it's used by the board init
code (the PC one), where all board specific code must have
void return.

The way I've chosen to fix this was to introduce a new function
called pci_nic_supported(), which checks if the NIC is supported
and returns true or false accordingly.

The new function is used only by the Monitor, it performs the
necessary check and returns an error in case the NIC is not
supported, thus qemu_check_nic_model_list()'s exit is never trigged.

The following should be observed:

1. Only the specified NIC is checked, the default one is assumed
to be supported

2. The NIC query command (model=?) won't work with pci_add, the
right way to do this with the Monitor is to add a new command

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:44 -05:00
Juan Quintela
84e2e3eb5f vmstate: remove const for put operations
In a later patch, we introduce pre_save() and post_save() functions.
The whole point of that operation is to change things in the state.
Without this patch, we have to remove the const qualifier in each
use with a cast

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05 09:32:36 -05:00
Anthony Liguori
c227f0995e Revert "Get rid of _t suffix"
In the very least, a change like this requires discussion on the list.

The naming convention is goofy and it causes a massive merge problem.  Something
like this _must_ be presented on the list first so people can provide input
and cope with it.

This reverts commit 99a0949b72.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-01 16:12:16 -05:00
malc
99a0949b72 Get rid of _t suffix
Some not so obvious bits, slirp and Xen were left alone for the time
being.

Signed-off-by: malc <av1474@comtv.ru>
2009-10-01 22:45:02 +04:00
Gerd Hoffmann
71077c1cb0 qdev/pci: add pci_create_noinit()
Like pci_create_simple() but doesn't call qdev_init(), so one can
set properties before initializing the device.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-15 19:23:25 +00:00
Juan Quintela
5d4e84c8b9 We want the argument pass to set_irq to be opaque
piix_pci want to pass more things that the pic

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-04 09:37:23 -05:00
Juan Quintela
15dc11286f low_set_irq is not used anywhere
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-04 09:37:22 -05:00
Juan Quintela
a60380a561 Add pci_ne2000_{save/load} functions, then remove pci_dev NE2000State field
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27 20:47:00 -05:00
Gerd Hoffmann
81a322d4a1 qdev: add return value to init() callbacks.
Sorry folks, but it has to be.  One more of these invasive qdev patches.

We have a serious design bug in the qdev interface:  device init
callbacks can't signal failure because the init() callback has no
return value.  This patch fixes it.

We have already one case in-tree where this is needed:
Try -device virtio-blk-pci (without drive= specified) and watch qemu
segfault.  This patch fixes it.

With usb+scsi being converted to qdev we'll get more devices where the
init callback can fail for various reasons.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27 20:43:28 -05:00
Juan Quintela
73534f2f68 Port PCIDevice state to VMState
This uses a variant of buffer, with extra checks. Also uses the new
support for cheking that a read value is less or equal than a field.

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27 20:30:22 -05:00
Juan Quintela
f16c4abfad Add version_id to PCIDevice.
It is needed for VMState

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27 20:30:22 -05:00
Juan Quintela
2d1e9f96a2 Port PCI Bus to VMState design
This uses VARRAY and INT32_EQUAL values

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27 20:30:22 -05:00
Gerd Hoffmann
54586bd17d qdev/prop: convert pci.c to helper macros.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Message-Id:
2009-08-10 13:05:50 -05:00
Gerd Hoffmann
a6307b086b qdev/pci: use qdev_prop_pci_devfn
Put the new property into use.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 08:39:29 -05:00
Blue Swirl
72f44c8cc7 Sparc64: convert APB to qdev
Thanks to Igor Kovalenko for a bugfix.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-21 08:53:35 +00:00
Gerd Hoffmann
8ad1251470 qdev: print device id in "info pci".
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16 17:28:53 -05:00
Gerd Hoffmann
eb54b6dcb8 qdev: add id= support for pci nics.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16 17:28:53 -05:00
Gerd Hoffmann
ee6847d19b qdev: rework device properties.
This patch is a major overhaul of the device properties.  The properties
are saved directly in the device state struct now, the linked list of
property values is gone.

Advantages:
  * We don't have to maintain the list with the property values.
  * The value in the property list and the value actually used by
    the device can't go out of sync any more (used to happen for
    the pci.devfn == -1 case) because there is only one place where
    the value is stored.
  * A record describing the property is required now, you can't set
    random properties any more.

There are bus-specific and device-specific properties.  The former
should be used for properties common to all bus drivers.  Typical
use case is bus addressing, i.e. pci.devfn and i2c.address.

Properties have a PropertyInfo struct attached with name, size and
function pointers to parse and print properties.  A few common property
types have PropertyInfos defined in qdev-properties.c.  Drivers are free
to implement their own very special property parsers if needed.

Properties can have default values.  If unset they are zero-filled.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16 17:28:51 -05:00
Isaku Yamahata
d8d2e079fa pci.c: remove unnecessary #ifdef DEBUG_PCI.
remove unnecessary #ifdef DEBUG_PCI.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16 08:28:13 -05:00
Paul Brook
616cbc78a5 Fix PCI IRQ breakage
Zero initialize the PCI bus irq count.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-07-11 22:46:51 +01:00
Blue Swirl
ac47a60b3f Fix APB by reverting 16eaedf266 partially
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-11 08:20:24 +00:00
Gerd Hoffmann
16eaedf266 qdev/pci: misc fixes.
* fix secondary bus setup.
 * use base->name instead of "FIXME" for device name.
   Yes, the device name is redundant.  Only for drivers converted
   to qdev already though.  Once all drivers are converted we can
   and should kill it.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2009-07-09 13:07:03 +01:00
Gerd Hoffmann
10c4c98ab7 qdev: replace bus_type enum with bus_info struct.
BusInfo is filled with name and size (pretty much like I did for
DeviceInfo as well).  There is also a function pointer to print
bus-specific device information to the monitor.  sysbus is hooked
up there, I've also added a print function for PCI.

Device creation is slightly modified as well:  The device type search
loop now also checks the bus type while scanning the list instead of
complaining thereafter in case of a mismatch.  This effectively gives
each bus a private namespace for device names.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-07-09 13:07:03 +01:00
Gerd Hoffmann
0aab0d3a4a qdev: update pci device registration.
Makes pci_qdev_register take a PCIDeviceInfo struct instead of a bunch
of parameters.  Also adds config_read and config_write callbacks to
PCIDeviceInfo, so drivers needing these can be converted to the qdev
device API too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2009-07-09 13:07:02 +01:00
Jan Kiszka
a08d43677f Revert "Introduce reset notifier order"
This reverts commit 8217606e6e (and
updates later added users of qemu_register_reset), we solved the
problem it originally addressed less invasively.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29 14:18:08 -05:00
Jan Kiszka
e9283f8b88 monitor: Drop pci_addr prefix from hotplug commands
The "pci_addr=" prefix currently required by pci_add/remove and
drive_add has no practical use. Drop it, but still silently accept it
for backward compatibility.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-29 14:18:07 -05:00
Michael S. Tsirkin
bd4b65ee5e qemu/pci: check constant registers on load
Add "cmask" table of constant register masks: if a bit is not writeable
and is set in cmask table, this bit is checked on load.  An attempt to
load an image that would change such a register causes load to fail.
Use this table to make sure that load does not modify registers that
guest can not change (directly or indirectly).

Note: we can't just assume that read-only registers never change,
because the guest could change a register indirectly.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-24 09:09:14 -05:00
Michael S. Tsirkin
6f4cbd3950 qemu/pci: add routines to manage PCI capabilities
Add routines to manage PCI capability list. First user will be MSI-X.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-24 09:09:14 -05:00
Michael S. Tsirkin
b7ee1603c1 qemu/pci: make default_write_config use mask table
Change much of hw/pci to use symbolic constants and a table-driven
design: add a mask table with writable bits set and readonly bits unset.
Detect change by comparing original and new registers.

This makes it easy to support capabilities where read-only/writeable
bit layout differs between devices, depending on capabilities present.

As a result, writing a single byte in BAR registers now works as
it should. Writing to upper limit registers in the bridge
also works as it should. Code is also shorter.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-24 09:09:14 -05:00
Markus Armbruster
1f5f6638c0 Make first argument of monitor command pci_add work
Simply pass the PCI address through qemu_pci_hot_add_nic() to
pci_nic_init() and through qemu_pci_hot_add_storage() to pci_create().

Before, pci_device_hot_add() passed along the PCI bus to use, and
ignored any user-specified slot.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22 10:15:29 -05:00
Markus Armbruster
5607c38820 Support addr=... in option argument of -net nic
Make net_client_init() accept addr=, put the value into struct
NICinfo.  Use it in pci_nic_init(), and remove arguments bus and
devfn.

Don't support addr= in third argument of monitor command pci_add,
because that clashes with its first argument.  Admittedly unelegant.

Machines "malta" and "r2d" have a default NIC with a well-known PCI
address.  Deal with that the same way as the NIC model: make
pci_nic_init() take an optional default to be used when the user
doesn't specify one.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22 10:15:29 -05:00
Markus Armbruster
07b7d05377 Fix do_pci_register_device() to reject devfn already in use
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22 10:15:29 -05:00
Gleb Natapov
6eaa684746 Add pci_bus_reset() function.
To reset internal irq handling data structures.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Yaniv Kamay <ykamay@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-22 10:10:50 -05:00
Avi Kivity
28c2c26495 Rename pci_register_io_region() to pci_register_bar()
This function is used to manage a PCI BAR, so make the more generic
pci_register_io_region() available to other uses.

Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-16 15:18:38 -05:00
Gerd Hoffmann
074f2fff79 qdev: move name+size into DeviceInfo (v2)
Rationale: move device information from code to data structures.

v2: Adapt the drivers missed in the first version.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2009-06-11 13:47:36 +01:00
Blue Swirl
8238467045 Remove unused and misnamed field and variable
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-06-09 17:25:00 +00:00
Paul Brook
02e2da45c4 Add common BusState
Implement and use a common device bus state.  The main side-effect is
that creating a bus and attaching it to a parent device are no longer
separate operations.  For legacy code we allow a NULL parent, but that
should go away eventually.

Also tweak creation code to veriry theat a device in on the right bus.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-23 00:13:41 +01:00
Paul Brook
53c25cea7d Separate virtio PCI code
Split the PCI host bindings from the VRing transport implementation.

Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-18 18:26:33 +01:00
Paul Brook
cf21e106cd Virtio-net qdev conversion
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-14 22:35:07 +01:00
Paul Brook
9d07d7579b PCI network qdev conversion
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-14 22:35:07 +01:00
Paul Brook
6b1b92d35b PCI qdev support
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-14 22:35:07 +01:00
Isaku Yamahata
425c608c48 minor fix of pci_register_bus()
keep first_bus linked list correct.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
2009-05-03 22:10:59 +03:00
Isaku Yamahata
6407f37373 use PCI_HEADER_TYPE.
use symbolic value instead of 0x0e and related value.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
2009-05-03 19:03:00 +00:00
aliguori
c2c5104b22 Make PCI config status register read-only
From the documentation I can find, this register is supposed to be read-only.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7070 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-10 20:48:17 +00:00
aliguori
376253ece4 monitor: Rework API (Jan Kiszka)
Refactor the monitor API and prepare it for decoupled terminals:
term_print functions are renamed to monitor_* and all monitor services
gain a new parameter (mon) that will once refer to the monitor instance
the output is supposed to appear on. However, the argument remains
unused for now. All monitor command callbacks are also extended by a mon
parameter so that command handlers are able to pass an appropriate
reference to monitor output services.

For the case that monitor outputs so far happen without clearly
identifiable context, the global variable cur_mon is introduced that
shall once provide a pointer either to the current active monitor (while
processing commands) or to the default one. On the mid or long term,
those use case will be obsoleted so that this variable can be removed
again.

Due to the broad usage of the monitor interface, this patch mostly deals
with converting users of the monitor API. A few of them are already
extended to pass 'mon' from the command handler further down to internal
functions that invoke monitor_printf.

At this chance, monitor-related prototypes are moved from console.h to
a new monitor.h. The same is done for the readline API.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6711 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-05 23:01:23 +00:00
aliguori
880345c484 Parse full PCI device addresses (Markus Armbruster)
This code parses full PCI device addresses.  It then rejects domains
other than zero, because these are not supported in QEMU.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6609 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11 15:21:48 +00:00
aliguori
a4c20c6a54 qemu: warn if PCI region is not power of two (Marcelo Tosatti)
Otherwise the PCI size for such regions can be calculated erroneously.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6604 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11 15:21:16 +00:00
aliguori
5851e08cb8 qemu: add pci_unregister_device (Marcelo Tosatti)
Unregister the pci device, unassign its IO and memory regions, and free
associated data.

Add a callback so drivers can free device state.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6603 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11 15:21:10 +00:00
aliguori
72da420859 qemu: return PCIDevice on net device init and record devfn (Marcelo Tosatti)
Change the PCI network drivers init functions to return the PCIDev, to
inform which slot has been hot-plugged.

Also record PCIDevice structure on NICInfo to locate for release on
hot-removal.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6593 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11 15:19:52 +00:00
aliguori
3ae8061898 qemu: add pci helper functions (Marcelo Tosatti)
Add pci_find_bus/pci_find_device to be used by PCI hotplug.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6592 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-11 15:19:46 +00:00
aliguori
487414f1cb hw: remove error handling from qemu_malloc() callers (Avi Kivity)
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6529 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05 22:06:05 +00:00
blueswir1
173a543b36 Add and use #defines for PCI device classes
This patch adds and uses #defines for PCI device classes and subclases,
using a new pci_config_set_class() function, similar to the recently
added pci_config_set_vendor_id() and pci_config_set_device_id().

Change since v1: fixed compilation of hw/sun4u.c

Signed-off-by: Stuart Brady <stuart.brady@gmail.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6491 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-01 19:26:20 +00:00
blueswir1
480b9f24d7 Add Simba device ID
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6465 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-27 19:15:31 +00:00
aliguori
cb457d7679 Make pci_nic_init() use qemu_setup_nic_model() (Mark McLoughlin)
Add a table of PCI NIC models to pass to qemu_setup_nic_model().

While we're at it, also add a corresponding table of NIC init
functions.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6287 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-13 19:47:10 +00:00
aurel32
475dc65f6d PCI: Mask writes to RO bits in the command reg of PCI config space
The Command register in the PCI config space has some read-only bits.
Any writes to those bits should be masked out.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6092 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-18 22:43:40 +00:00
aurel32
8098ed414a PCI: Mask writes to RO bits in the status reg of PCI config space
The Status register in the PCI config space has some read-only bits.
Any writes to those bits should be masked out.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6091 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-18 22:43:33 +00:00
aliguori
fbe78f4f55 virtio-net support
This adds virtio-net support.  This is based on the virtio-net driver 
that exists in kvm-userspace.  This also adds a new qemu_sendv_packet 
which virtio-net requires.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6073 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-17 19:13:11 +00:00
aliguori
d350d97d19 pci: add default pci subsystem id for all devices (Gerd Hoffman)
This sets a default PCI subsystem ID for all emulated PCI devices.  PCI
specs require this, so do it.

In many cases it is enougth to know the PCI ID to handle a device
correctly.  Sometimes a device driver must identify the exact piece of
hardware (via PCI Subsystem ID) though.

What does this patch to qemu devices:

Right now the emulated PCI devices have no PCI subsystem ID, only the
PCI ID.  The discussed patch sets a default PCI subsystem ID for all
emulated devices.  Which will make the qemu devices look pretty much
like in the laptop case: all PCI subsystem IDs will point to qemu by
default.

If a driver emulates a very specific piece of hardware where it has to
emulate more than just the PCI chip, it can overwrite the PCI subsystem
ID without problems.  The es1370 driver does that for example.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5986 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-11 21:15:42 +00:00
aliguori
f65ed4c152 KVM: Coalesced MMIO support
MMIO exits are more expensive in KVM or Xen than in QEMU because they 
involve, at least, privilege transitions.  However, MMIO write 
operations can be effectively batched if those writes do not have side 
effects.

Good examples of this include VGA pixel operations when in a planar 
mode.  As it turns out, we can get a nice boost in other areas too.  
Laurent mentioned a 9.7% performance boost in iperf with the coalesced 
MMIO changes for the e1000 when he originally posted this work for KVM.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5961 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-09 20:09:57 +00:00
blueswir1
09bc878a13 Make PCI class description tables const
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5400 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-02 18:33:50 +00:00
balrog
7c23b89203 E1000 NIC emulation (Nir Peleg, patch from Dor Laor).
Applied %s/^\([^I ]*\)^I/\1    /g on e1000.c and added e1000 to help message.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3949 c046a42c-6fe2-441c-8c8c-71466251a162
2008-02-03 02:20:18 +00:00
balrog
52fc1d83bc Save/load PCI-device, PCI-bus and PIIX3 irq-related state (patches by Uri Lublin.
Note that other PCI bridges are not fixed here.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3793 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-09 23:56:13 +00:00
pbrook
9596ebb701 Add statics and missing #includes for prototypes.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3683 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-18 01:44:38 +00:00
pbrook
87ecb68bdf Break up vl.h.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-17 17:14:51 +00:00
ths
3b46e62427 find -type f | xargs sed -i 's/[\t ]*$//g' # Yes, again. Note the star in the regex.
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3177 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-17 08:09:54 +00:00