Commit Graph

120 Commits

Author SHA1 Message Date
Cole Robinson
58b590148c pci: Fix clearing IRQs on reset
irq_state is cleared before calling pci_device_deassert_intx, but the
latter misbehaves if the former isn't accurate. In this case, any raised
IRQs are not cleared, which hits an assertion in pcibus_reset:

qemu-system-x86_64: hw/pci/pci.c:250: pcibus_reset: Assertion
`bus->irq_count[i] == 0' failed.

pci_device_deassert_intx should clear irq_state anyways, so add
an assert.

This fixes migration with usb2 + usb-tablet.

Signed-off-by: Cole Robinson <crobinso@redhat.com>
Message-id: 7da1ad94ce027183b4049c2de370cb191b0073c1.1396290569.git.crobinso@redhat.com
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-31 19:53:34 +01:00
Peter Maydell
ac43fa508c hw/pci/pci_host.c: Avoid shifting left into sign bit
Add U suffix to avoid undefined behaviour.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-03-27 19:22:49 +04:00
Bandan Das
d2f69df746 pci: Move VMState registration/unregistration to QOM realize/unrealize
Use the realize and unrealize hooks to register and unregister
vmstate_pcibus respectively.

Relocate some stuff to avoid forward declarations.

Signed-off-by: Bandan Das <bsd@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
[AF: Keep using PCI_BUS() cast macro]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-13 01:21:57 +01:00
Igor Mammedov
6e1f0a55a1 PCIE: fix regression with coldplugged multifunction device
PCIE is causing asserts each time a multifunction device is added
on command line (coldplug).

This is caused by
commit a66e657e18
    pci/pcie: convert PCIE hotplug to use hotplug-handler API
QEMU abort is caused by misplaced assertion, which should
be checked only when device is hotplugged.

Reference to regression report:
 http://www.mail-archive.com/qemu-devel@nongnu.org/msg216226.html

Fixes: a66e657e18

Reported-By: Nigel Kukard <nkukard+qemu@lbsd.net>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-03-09 21:09:37 +02:00
Markus Armbruster
84d18f065f Use error_is_set() only when necessary
error_is_set(&var) is the same as var != NULL, but it takes
whole-program analysis to figure that out.  Unnecessarily hard for
optimizers, static checkers, and human readers.  Dumb it down to
obvious.

Gets rid of several dozen Coverity false positives.

Note that the obvious form is already used in many places.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2014-02-17 11:57:23 -05:00
Peter Maydell
0888a29caa acpi,pc,pci fixes and enhancements
Most changes here are hotplug related:
 
 This merges hotplug infrastructure changes by Igor,
 some acpi related fixes, and PC fixes.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJS+Jg2AAoJECgfDbjSjVRp2hIH/3PezOqYAJlp1LzHPYgTII5R
 ZWdlHWJODB5QKGuDnJ0rKTZn+9n4f27Q7ynwqrodrLNtzglfmPUwtjTb52vbd1yh
 qJ7BtvGIewUEjTPVs2feipb75jFZFhvIU46F1jPJAiaNKG0nl6zwVHn5XfFqesv2
 4TlHAoqYvpUUuFcG7Qu+hREUrjb/tdxwP8EYM4qDPOSxguS2R2+3/17BVlPDQGia
 bKl6j5EmnmmbQ0h8Sepy3YKh9d1rZnKFsolMFrL8ITjzEzzyKjpE284GNe/5eY25
 HR25dY5eYTb0d3QPeH2O5sOrZgOFpTZc8WOo9Kxi0OTjWxFoZstZ1AOM3A2DAoY=
 =EtLZ
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

acpi,pc,pci fixes and enhancements

Most changes here are hotplug related:

This merges hotplug infrastructure changes by Igor,
some acpi related fixes, and PC fixes.

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

# gpg: Signature made Mon 10 Feb 2014 09:13:26 GMT using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg:          There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  ACPI: Remove commented-out code from HPET._CRS
  hw/pci: switch to a generic hotplug handling for PCIDevice
  pci/pcie: convert PCIE hotplug to use hotplug-handler API
  pci/shpc: convert SHPC hotplug to use hotplug-handler API
  acpi/piix4pm: convert ACPI PCI hotplug to use hotplug-handler API
  qdev:pci: refactor PCIDevice to use generic "hotpluggable" property
  hw/acpi: move typeinfo to the file end
  qdev: add "hotpluggable" property to Device
  qdev: add to BusState "hotplug-handler" link
  define hotplug interface
  loader: document that errno is set
  pc.c: better error message on initrd sizing failure
  pc_piix: enable legacy hotplug for Xen
  qtest: don't report signals if qtest driver enabled
  hw:piix4:acpi: reuse pcihp code for legacy PCI hotplug
  pcihp: remove unused AcpiPciHpPciStatus.device_present field
  pcihp: make pci_read() mmio calback compatible with legacy ACPI hotplug
  pcihp: make PCI hotplug mmio handlers indifferent to PCI_HOTPLUG_ADDR
  pcihp: replace enable|disable_device() with oneliners
  pcihp: reduce number of device check events

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-02-13 15:02:04 +00:00
Edgar E. Iglesias
ab1da85791 exec: Make stl_*_phys input an AddressSpace
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11 22:57:18 +10:00
Igor Mammedov
5e95494380 hw/pci: switch to a generic hotplug handling for PCIDevice
make qdev_unplug()/device_set_realized() to call hotplug handler's
plug/unplug methods if available and remove not needed anymore
hot(un)plug handling from PCIDevice.

In case if hotplug handler is not available, revert to the legacy
hotplug method for compatibility with not yet converted buses.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-02-10 10:27:00 +02:00
Igor Mammedov
a66e657e18 pci/pcie: convert PCIE hotplug to use hotplug-handler API
Split pcie_cap_slot_hotplug() into hotplug/unplug callbacks
and register them as "hotplug-handler" interface implementation of
PCIE_SLOT device.

Replace pci_bus_hotplug() wiring with setting link on PCI BUS
"hotplug-handler" property to PCI_BRIDGE_DEV device.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-02-10 10:27:00 +02:00
Igor Mammedov
5d268704d7 pci/shpc: convert SHPC hotplug to use hotplug-handler API
Split shpc_device_hotplug() into hotplug/unplug callbacks
and register them as "hotplug-handler" interface implementation of
PCI_BRIDGE_DEV device.

Replace pci_bus_hotplug() wiring with setting link on PCI BUS
"hotplug-handler" property to PCI_BRIDGE_DEV device.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-02-10 10:27:00 +02:00
Igor Mammedov
2897ae0267 qdev:pci: refactor PCIDevice to use generic "hotpluggable" property
Get rid of PCIDevice specific PCIDeviceClass.no_hotplug and use
generic DeviceClass.hotpluggable field instead.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-02-10 10:26:56 +02:00
Marcel Apfelbaum
306077640a hw/pci: fix error flow in pci multifunction init
Scenario:
  - There is a non multifunction pci device A on 00:0X.0.
  - Hot-plug another multifunction pci device B at 00:0X.1.
  - The operation will fail of course.
  - Try to hot-plug the B device 2-3 more times, qemu will crash.

Reason: The error flow leaves the B's address space into global address spaces
list, but the device object is freed. Fixed that.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:11:45 +02:00
Michael S. Tsirkin
eb0acfdde6 pci: add pci_for_each_bus_depth_first
Useful for ACPI hotplug.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2014-01-26 13:06:49 +02:00
Anthony Liguori
d1819762fc acpi,pci,pc,fedora,virtio fixes and enhancements
This includes some Preparatory patches for cpu hotplug for q25 and memory
 hotplug by Igor, tests and memory mapping change
 by Laszlo and pci reset cleanup by Paolo.
 There are also some fixes for fedora and virtio:
 included here since they are test blockers for me.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.15 (GNU/Linux)
 
 iQEcBAABAgAGBQJSuF+2AAoJECgfDbjSjVRpTz0IAJhNCC8L2GVt+pm1RAt6lbqZ
 u9bCrqfThDORN2mUTEuLu4ZpZC0DYc7d0Jjr5NPesC5G/Afzi5/to6+l7nNZneU3
 OdBPglXCCfU/cRaLu7JG2akpha0GVU0tsSCoWIYa6mwlWA4/DXVMgeKg/bh/EgfM
 B1w4fE2RgRM9bEqWmX4+tZw8dgk7uVJhu95HCDnb5eikaKlFzwuOlvexrDV3KbPc
 bkJe35zbGrKOws93tiSeoqcDx2dcYSzecPoJ0jiCY0KXJ17PBWAvuLTtYqkwwe9J
 2FEnTslQJ3Rc8jTFiOPWx2pGaejG4y7Tnk6uuzW6fbbSLOQDPJy3KgmutJFMt1A=
 =ShCj
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'mst/tags/for_anthony' into staging

acpi,pci,pc,fedora,virtio fixes and enhancements

This includes some Preparatory patches for cpu hotplug for q25 and memory
hotplug by Igor, tests and memory mapping change
by Laszlo and pci reset cleanup by Paolo.
There are also some fixes for fedora and virtio:
included here since they are test blockers for me.

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

# gpg: Signature made Mon 23 Dec 2013 08:07:18 AM PST using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

* mst/tags/for_anthony:
  target-arm: fix build with gcc 4.8.2
  virtio: add back call to virtio_bus_device_unplugged
  piix: fix 32bit pci hole
  qdev: switch reset to post-order
  qdev: allow both pre- and post-order vists in qdev walking functions
  pci: clean up resetting of IRQs
  pci: do not export pci_bus_reset
  ACPI/DSDT-CPU: cleanup bogus comment
  ACPI: Q35 DSDT: fix CPU hotplug GPE0.2 handler
  acpi: ich9: allow guest to clear SCI rised by GPE
  acpi: factor out common pm_update_sci() into acpi core
  acpi: piix4: remove not needed GPE0 mask
  i440fx-test: verify firmware under 4G and 1M, both -bios and -pflash
  i440fx-test: generate temporary firmware blob
  i440fx-test: give each GTest case its own qtest
  i440fx-test: qtest_start() should be paired with qtest_end()
  hw/i386/pc_sysfw: support two flash drives
  pc_piix: document gigabyte_align
  piix: gigabyte alignment for ram

Message-id: 1387815007-1272-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2014-01-10 11:04:48 -08:00
Stefan Hajnoczi
6780a22cc7 qdev: Drop misleading qbus_free() function
Same reasoning as commit 02a5c4c974
("qdev: Drop misleading qdev_free() function").  The qbus_free()
function removes the child from the namespace and decrements the
reference count.  It does not, however, guarantee to free the child
since the refcount may still be held.

Just call object_unparent() directly.

Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-12-24 18:02:18 +01:00
Paolo Bonzini
dcc209314a qdev: switch reset to post-order
Post-order is the only sensible direction for the reset signals.
For example, suppose pre-order is used and the parent has some data
structures that cache children state (for example a list of active
requests).  When the reset method is invoked on the parent, these caches
could be in any state.

If post-order is used, on the other hand, these will be in a known state
when the reset method is invoked on the parent.

This change means that it is no longer possible to block the visit of
the devices, so the callback is changed to return void.  This is not
a problem, because PCI was returning 1 exactly in order to achieve the
same ordering that this patch implements.

PCI can then rely on the qdev core having sent a "reset signal" (whatever
that means) to the device, and only do the PCI-specific initialization
with pci_do_device_reset.

MST: fixed up virtio-ccw

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-12-23 13:12:35 +02:00
Paolo Bonzini
9bdbbfc3a0 pci: clean up resetting of IRQs
pci_device_reset will deassert the INTX pins, and this will make the
irq_count array all-zeroes.  Check that this is the case, and remove
the existing loop which might even unsync irq_count and irq_state.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-12-23 13:12:35 +02:00
Paolo Bonzini
81e3e75b64 pci: do not export pci_bus_reset
qbus_reset_all can be used instead.  There is no semantic change
because pcibus_reset returns 1 and takes care of the device
tree traversal.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-12-23 13:12:35 +02:00
Gerd Hoffmann
4c41425d2e pci: fix pci bridge fw path
qemu uses "pci" as name for pci bridges in the firmware device path.
seabios expects "pci-bridge".  Result is that bootorder is broken for
devices behind pci bridges.

Some googling suggests that "pci-bridge" is the correct one.  At least
PPC-based Apple machines are using this.  See question "How do I boot
from a device attached to a PCI card" here:
	http://www.netbsd.org/ports/macppc/faq.html

So lets change qemu to use "pci-bridge" too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-12-11 20:11:08 +02:00
Michael S. Tsirkin
cf252e5173 pci: fix address space size for bridge
Address space size for bridge should be full 64 bit,
so we should use UINT64_MAX not INT64_MAX as it's size.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-12-10 12:29:56 +02:00
Bandan Das
5c397242d5 pci: unregister vmstate_pcibus on unplug
PCIBus registers a vmstate during init. Unregister it upon
removal/unplug.

Signed-off-by: Bandan Das <bsd@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-11-21 16:25:08 +02:00
Marcel Apfelbaum
0fbf50b6ec Revert "hw/pci: partially handle pci master abort"
This reverts commit a53ae8e934.

The patch being reverted introduced a low-priority memory region
covering all 64 bit pci address space.  This exposed the following bugs
elsewhere in the code:
 1. Some memory regions have INT64_MAX size, where the
    intent was all 64 bit address space.
    This results in a sub-page region, should be UINT64_MAX.
 2. page table rendering in exec.c ignores physical address bits
    above TARGET_PHYS_ADDR_SPACE_BITS.
    Access outside this range (e.g. from device DMA, or gdb stub)
    ends up with a wrong region.  Registering a region outside this
    range leads to page table corruption.
 3. Some regions overlap PCI hole and have same priority.
    This only works as long as no device uses the overlapping address.

It doesn't look like we can resolve all issues in time for 1.7.
Let's fix the bugs first and apply afterwards for 1.8.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-11-10 14:30:00 +02:00
Peter Maydell
6bd194ab99 bswap.h: Remove cpu_to_be32wu()
Replace the legacy cpu_to_be32wu() with stl_be_p().

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1383669517-25598-8-git-send-email-peter.maydell@linaro.org
Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-11-05 19:57:47 -08:00
Stefan Hajnoczi
02a5c4c974 qdev: Drop misleading qdev_free() function
The qdev_free() function name is misleading since all the function does
is unlink the device from its parent.  The device is not necessarily
freed.

The device will be freed when its QObject refcount reaches zero.  It is
usual for the parent (bus) to hold the final reference but there are
cases where something else holds a reference so "free" is a misleading
name.

Call object_unparent(obj) directly instead of having a qdev wrapper
function.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-11-05 18:06:38 +01:00
Anthony Liguori
b0eb759fb2 pci, pc, acpi fixes, enhancements
This includes some pretty big changes:
 - pci master abort support by Marcel
 - pci IRQ API rework by Marcel
 - acpi generation support by myself
 
 Everything has gone through several revisions, latest versions have been on
 list for a while without any more comments, tested by several
 people.
 
 Please pull for 1.7.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.15 (GNU/Linux)
 
 iQEcBAABAgAGBQJSXNO8AAoJECgfDbjSjVRp7VAH/0B73mCOiyVACGx7fazK3SGK
 X8TxZWVtG5A77ISqKyrtjLAhK9DCQjEzQTbMNhXHM3Ar6crwo7nJZnQvH2Gh1X2p
 34BOQSVc4rtXz5pwDIr48dBLrxeslwXub79chUs+IK1/4RSn3h3nuS3k6JVkmLJN
 rcHMj4ljJmi4Hd9vOpmS1jo/a61usi36hhU7CMgcrsXzStZycBBzCozOB3VW8p1X
 /iwyf91YjmNPkn9gA3/aViGjszu8jE91dkA0C+ljwvcGbs2yEl3LCWEJfsMvoh5P
 2M+k0XXbHwq/P9PFMa/2/lWOo4EO4Oxa+G/6QvovJrteYnktr+E9DqjU8pCT7yI=
 =CVfs
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci, pc, acpi fixes, enhancements

This includes some pretty big changes:
- pci master abort support by Marcel
- pci IRQ API rework by Marcel
- acpi generation support by myself

Everything has gone through several revisions, latest versions have been on
list for a while without any more comments, tested by several
people.

Please pull for 1.7.

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

# gpg: Signature made Tue 15 Oct 2013 07:33:48 AM CEST using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

* mst/tags/for_anthony: (39 commits)
  ssdt-proc: update generated file
  ssdt: fix PBLK length
  i386: ACPI table generation code from seabios
  pc: use new api to add builtin tables
  acpi: add interface to access user-installed tables
  hpet: add API to find it
  pvpanic: add API to access io port
  ich9: APIs for pc guest info
  piix: APIs for pc guest info
  acpi/piix: add macros for acpi property names
  i386: define pc guest info
  loader: allow adding ROMs in done callbacks
  i386: add bios linker/loader
  loader: use file path size from fw_cfg.h
  acpi: ssdt pcihp: updat generated file
  acpi: pre-compiled ASL files
  acpi: add rules to compile ASL source
  i386: add ACPI table files from seabios
  q35: expose mmcfg size as a property
  q35: use macro for MCFG property name
  ...

Message-id: 1381818560-18367-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-10-31 16:58:32 +01:00
Ákos Kovács
cf01ba9eef Makefile.target: CONFIG_NO_* variables removed
CONFIG_NO_* variables replaced with the lnot logical function

Signed-off-by: Ákos Kovács <akoskovacs@gmx.com>
[PMM: fixed a few CONFIG_NO_* uses that were missed]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-10-16 18:21:00 +02:00
Michael S. Tsirkin
6f6d282330 pcie_host: expose address format
Callers pass in the address so it's helpful for
them to be able to decode it.

Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:48:51 +03:00
Michael S. Tsirkin
079e3e7012 pcie_host: expose UNMAPPED macro
Make it possible to test unmapped status through QMP.

Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:48:51 +03:00
Michael S. Tsirkin
77d6f4ea76 pci: fix up w64 size calculation helper
BAR base was calculated incorrectly.
Use existing pci_bar_address to get it right.

Tested-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:48:45 +03:00
Marcel Apfelbaum
c31d04b516 hw/pci: removed irq field from PCIDevice
Instead of exposing the the irq field,
pci wrappers to qemu_set_irq or qemu_irq_*
can be used.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:11:45 +03:00
Marcel Apfelbaum
5a03e708f2 hw/pcie: AER and hot-plug events must use device's interrupt
The fields hpev_intx and aer_intx were removed because
both AER and hot-plug events must use device's interrupt.
Assert/deassert interrupts using pci irq wrappers instead.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:11:45 +03:00
Marcel Apfelbaum
9e64f8a3fc hw: set interrupts using pci irq wrappers
pci_set_irq and the other pci irq wrappers use
PCI_INTERRUPT_PIN config register to compute device
INTx pin to assert/deassert.

An irq is allocated using pci_allocate_irq wrapper
only if is needed by non pci devices.

Removed irq related fields from state if not used anymore.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:11:45 +03:00
Marcel Apfelbaum
d98f08f54e hw/pci: add pci wrappers for allocating and asserting irqs
Interrupt pin is selected and saved into PCI_INTERRUPT_PIN
register during device initialization. Devices should not call
directly qemu_set_irq and specify the INTx pin on each call.

Added pci_* wrappers to replace qemu_set_irq, qemu_irq_raise,
qemu_irq_lower and qemu_irq_pulse, setting the irq
based on PCI_INTERRUPT_PIN.

Added pci_allocate_irq wrapper to be used by devices that
still need PCIDevice infrastructure to assert irqs.

Renamed a static method which was named already pci_set_irq.

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:11:44 +03:00
Marcel Apfelbaum
a53ae8e934 hw/pci: partially handle pci master abort
A MemoryRegion with negative priority was created and
it spans over all the pci address space.
It "intercepts" the accesses to unassigned pci
address space and will follow the pci spec:
 1. returns -1 on read
 2. does nothing on write

Note: setting the RECEIVED MASTER ABORT bit in the STATUS register
      of the device that initiated the transaction will be
      implemented in another series

Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-10-14 17:11:44 +03:00
Hervé Poussineau
9f1a029abf pci: remove explicit check to 64K ioport size
This check is useless, as bigger addresses will be ignored when
added to 'io' MemoryRegion, which has a size of 64K.

However, some architectures don't use the 'io' MemoryRegion, like
the alpha and versatile platforms. They create a PCI I/O region
bigger than 64K, so let them handle PCI I/O BARs in the higher range.

MST: reinstated work-around for BAR sizing.

Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-09-15 11:49:51 +03:00
Michael S. Tsirkin
4386406957 pci: add helper to retrieve the 64-bit range
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-09-15 11:49:50 +03:00
Tomoki Sekiyama
6f88009ee5 Add c++ keywords to QAPI helper script
Add c++ keywords to avoid errors in compiling with c++ compiler.
This also renames class member of PciDeviceInfo to q_class.

Signed-off-by: Tomoki Sekiyama <tomoki.sekiyama@hds.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
2013-09-09 14:17:56 -05:00
Anthony Liguori
9889e04ac1 pc,pci,virtio fixes and cleanups
This includes pc and pci cleanups and enhancements,
 and a virtio bugfix for level interrupts.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.14 (GNU/Linux)
 
 iQEcBAABAgAGBQJSIveoAAoJECgfDbjSjVRp2C8IAL7DE0oM0jfEB5DAd8jlULHx
 hA8RP21rFzyU8PwtHB+72+C1ImldBge4hvhI+qbsm6PoW3RCeV/lbESIRTiv8dCO
 pGUOFmv8MfJAH+WWFsle5mRisoTksYQWWBMHCOqvmaY4JL9pBQOhCLHVhV1XfjtL
 hO7uGrWmlijeILv5CxYyPMYuOEdVvRSZKzE+Fp2YKfNstiQrS5fJIlqmwCHrlneW
 l2atnt2d9ZV1K8QYiGg4GRVbSAMJvA1wum+0F4gnXIz9yAeOt+Ht1s8cNKQDMouJ
 r2OyVgPM9aS/XaO6ejct1Sjo7Vgh/Ublrpw3lFqV/qHix6rEHwy2I3JHFEJPjvk=
 =SytJ
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pc,pci,virtio fixes and cleanups

This includes pc and pci cleanups and enhancements,
and a virtio bugfix for level interrupts.

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

# gpg: Signature made Sun 01 Sep 2013 03:15:36 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Michael S. Tsirkin (3) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  virtio_pci: fix level interrupts with irqfd
  pc: reduce duplication, fix PIIX descriptions
  hw: Clean up bogus default boot order
  pci: add config space access traces
  pc: fix regression for 64 bit PCI memory
  pci: Introduce helper to retrieve a PCI device's DMA address space

Message-id: 1378023590-11109-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <anthony@codemonkey.ws>
2013-09-03 12:31:07 -05:00
Andreas Färber
fb17dfe057 qdev: Pass size to qbus_create_inplace()
To be passed to object_initialize().

Since commit 39355c3826 the argument is
void*, so drop some superfluous (BusState *) casts or direct parent
field usages.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 21:15:35 +02:00
Andreas Färber
dd301ca607 pci: Pass size to pci_bus_new_inplace()
To be passed to qbus_create_inplace().

Reviewed-by: Wenchao Xia <xiawenc@linux.vnet.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-08-30 20:14:39 +02:00
Alexey Kardashevskiy
3bf4dfdd11 pci: add config space access traces
This adds pci_cfg_read and pci_cfg_write traces for config spaces
accesses.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-08-28 10:11:23 +03:00
Alexey Kardashevskiy
9eda7d373e pci: Introduce helper to retrieve a PCI device's DMA address space
A PCI device's DMA address space (possibly an IOMMU) is returned by a
method on the PCIBus.  At the moment that only has one caller, so the
method is simply open coded.  We'll need another caller for VFIO, so
this patch introduces a helper/wrapper function.

If IOMMU is not set, the pci_device_iommu_address_space() function
returns the parent's IOMMU skipping the "bus master" address space as
otherwise proper emulation would require more effort for no benefit.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
[aik: added inheritance from parent if iommu is not set for the current bus]
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-08-27 08:30:48 +03:00
Andreas Färber
bcb7575068 pcie_port: Turn PCIEPort and PCIESlot into abstract QOM types
Move PCIEPort's "port" property to the new type, same for "aer_log_max".
Move PCIESlot's "chassis" and "slot" properties to the new type.

Reviewed-by: Don Koch <dkoch@verizon.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 20:45:24 +02:00
Andreas Färber
f055e96bd4 pci-bridge: Turn PCIBridge into abstract QOM type
Introduce TYPE_PCI_BRIDGE as base type and use PCI_BRIDGE() casts.

Reviewed-by: Don Koch <dkoch@verizon.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
[AF: Updated pbm-bridge parent to TYPE_PCI_BRIDGE]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-29 20:44:47 +02:00
Andreas Färber
caad4eb345 scsi: Improve error propagation for scsi_bus_legacy_handle_cmdline()
Let scsi_bus_legacy_add_drive() and scsi_bus_legacy_handle_cmdline()
return an Error**. Prepare qdev initfns for QOM realize error model.

Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-07-23 00:37:35 +02:00
Anthony Liguori
e9acb8cea9 pci,net,pc enhancements
This includes some fixes and enhancements that accumulated in my tree:
 pci fixes by dkoch, virtio-net enhancements by akong and mst,
 and a fix for xen pc by mst.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQEcBAABAgAGBQJR5meNAAoJECgfDbjSjVRp24IIAMOkxbb85FJ323G/x5cQBzA/
 gjFDmvB6geIMBorX1YZRnIM+RFhx+mkXtBTu2raWVTNTt5G2u3vAQQWW2zSiOTBL
 gH4BhzJnUoqLHOydWql2MsGS7DMQo4Fq8OnzRBkZ119AEEqNMad1w2LykwFWs4ra
 k3bsPNCZM+ZNiLMWtQLOcD3FYvoiISinqFd81KOnxvDiT90rczk4dLWqjv8smNif
 WqZ7aCD1hGJ5yD7JI2YjCbhVvu4F7tBK+fWkT/O3oYslh/o241lyxUriOXMKdKML
 04sNXa5eWue9cOKlbo1G+yfFwFg1JDsAMe/Usg0KXz1MMK91wiWE763ESPbFBK0=
 =P+pr
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci,net,pc enhancements

This includes some fixes and enhancements that accumulated in my tree:
pci fixes by dkoch, virtio-net enhancements by akong and mst,
and a fix for xen pc by mst.

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

# gpg: Signature made Wed 17 Jul 2013 04:44:45 AM CDT using RSA key ID D28D5469
# gpg: Can't check signature: public key not found

# By Don Koch (2) and others
# Via Michael S. Tsirkin
* mst/tags/for_anthony:
  pc: don't access fw cfg if NULL
  virtio-net: add feature bit for any header s/g
  net: add support of mac-programming over macvtap in QEMU side
  pci: fix BRDIGE typo
  pci-bridge: update mappings for migration/restore

Message-id: 1374054430-21966-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-18 08:12:47 -05:00
Don Koch
e78e9ae4a9 pci-bridge: update mappings for migration/restore
Fix for LP#1187529: Devices on PCI bridge stop working when
live-migrated. Update bridge mappings for all PCI bridge
devices in get_pci_config_device().

Signed-off-by: Don Koch <dkoch@verizon.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-10 12:49:26 +03:00
Anthony Liguori
dc11549ec2 pci,misc enhancements
This includes some pci enhancements:
 
 Better support for systems with multiple PCI root buses
 FW cfg interface for more robust pci programming in BIOS
 Minor fixes/cleanups for fw cfg and cross-version migration -
     because of dependencies with other patches
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.13 (GNU/Linux)
 
 iQEcBAABAgAGBQJR2ctmAAoJECgfDbjSjVRpQpAH/Rk00yLrQ2R5ScNa8AL9LeaJ
 gVFndBmmuRz4gdhyATx6lzR98ic32iTr0+YR5mL51btgmM5a0bEd/SIu34nXriWj
 PsM0wdXfo/oEygdttxhvzJOH17tohRV9xg2WA2d8BEwDzrDyqoQ4J0VJlHlG7u3W
 nq4KVDVUpLNQFKG8ZgJ2vW0WMw/mBSj2rluhQUALhcuvChphtvAFZ2rsSfJr6bzD
 aBELrtIvfLvPGN/0WVeYs9qlp4EE03H3X6gN61QvV3/YElxubKUV5XyMDOX2dW3D
 2j0NQi84LYHn0SFap2r/Kgm47/F6Q56SFk5lrgZrg60mhQTwocw7PfL8CGxjXRI=
 =gxxc
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'mst/tags/for_anthony' into staging

pci,misc enhancements

This includes some pci enhancements:

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

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

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

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

Message-id: 1373228271-31223-1-git-send-email-mst@redhat.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-07-08 08:00:23 -05:00
David Gibson
7588e2b055 pci: Fold host_buses list into PCIHostState functionality
The host_buses list is an odd structure - a list of pointers to PCI root
buses existing in parallel to the normal qdev tree structure.  This patch
removes it, instead putting the link pointers into the PCIHostState
structure, which have a 1:1 relationship to PCIHostBus structures anyway.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-07 23:10:57 +03:00
David Gibson
2b8cc89a5c pci: Remove domain from PCIHostBus
There are now no users of the domain field of PCIHostBus, so remove it
from the structure, and as a parameter from the pci_host_bus_register()
function which sets it.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-07-07 23:10:57 +03:00