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Author SHA1 Message Date
Peter Maydell 482b61844a target-arm queue:
* GICv3 emulation
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Merge remote-tracking branch 'remotes/pmaydell/tags/pull-target-arm-20160617' into staging

target-arm queue:
 * GICv3 emulation

# gpg: Signature made Fri 17 Jun 2016 15:24:28 BST
# gpg:                using RSA key 0x3C2525ED14360CDE
# gpg: Good signature from "Peter Maydell <peter.maydell@linaro.org>"
# gpg:                 aka "Peter Maydell <pmaydell@gmail.com>"
# gpg:                 aka "Peter Maydell <pmaydell@chiark.greenend.org.uk>"
# Primary key fingerprint: E1A5 C593 CD41 9DE2 8E83  15CF 3C25 25ED 1436 0CDE

* remotes/pmaydell/tags/pull-target-arm-20160617: (22 commits)
  ACPI: ARM: Present GIC version in MADT table
  hw/timer: Add value matching support to aspeed_timer
  target-arm/monitor.c: Advertise emulated GICv3 in capabilities
  target-arm/machine.c: Allow user to request GICv3 emulation
  hw/intc/arm_gicv3: Add IRQ handling CPU interface registers
  hw/intc/arm_gicv3: Implement CPU i/f SGI generation registers
  hw/intc/arm_gicv3: Implement gicv3_cpuif_update()
  hw/intc/arm_gicv3: Implement GICv3 CPU interface registers
  hw/intc/arm_gicv3: Implement gicv3_set_irq()
  hw/intc/arm_gicv3: Wire up distributor and redistributor MMIO regions
  hw/intc/arm_gicv3: Implement GICv3 redistributor registers
  hw/intc/arm_gicv3: Implement GICv3 distributor registers
  hw/intc/arm_gicv3: Implement functions to identify next pending irq
  hw/intc/arm_gicv3: ARM GICv3 device framework
  hw/intc/arm_gicv3: Add vmstate descriptors
  hw/intc/arm_gicv3: Move irq lines into GICv3CPUState structure
  hw/intc/arm_gicv3: Add state information
  target-arm: Add mp-affinity property for ARM CPU class
  target-arm: Provide hook to tell GICv3 about changes of security state
  target-arm: Define new arm_is_el3_or_mon() function
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-17 16:16:37 +01:00
Shannon Zhao f06765a94a ACPI: ARM: Present GIC version in MADT table
In ACPI 5.1 Errata, it adds GIC version in GIC distributor structure.
This is useful for guest kernel to identify which version GIC hardware
is. Update GIC distributor structure and present GIC version in MADT
table.

Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-id: 1465960955-17388-1-git-send-email-zhaoshenglong@huawei.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-17 15:23:51 +01:00
Andrew Jeffery 1d3e65aa7a hw/timer: Add value matching support to aspeed_timer
Value matching allows Linux to boot with CONFIG_NO_HZ_IDLE=y on the
palmetto-bmc machine. Two match registers are provided for each timer.

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Message-id: 1465974248-20434-1-git-send-email-andrew@aj.id.au
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-17 15:23:51 +01:00
Peter Maydell ce187c3c15 hw/intc/arm_gicv3: Implement functions to identify next pending irq
Implement the GICv3 logic to recalculate the highest priority pending
interrupt for each CPU after some part of the GIC state has changed.
We avoid unnecessary full recalculation where possible.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1465915112-29272-11-git-send-email-peter.maydell@linaro.org
2016-06-17 15:23:51 +01:00
Shlomo Pongratz 56992670a4 hw/intc/arm_gicv3: ARM GICv3 device framework
This patch includes the device class itself, some ID register
value functions which will be needed by both distributor
and redistributor, and some skeleton functions for handling
interrupts coming in and going out, which will be filled in
in a subsequent patch.

Signed-off-by: Shlomo Pongratz <shlomo.pongratz@huawei.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1465915112-29272-10-git-send-email-peter.maydell@linaro.org
[PMM: pulled this patch earlier in the sequence, and left
 some code out of it for a later patch]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
2016-06-17 15:23:51 +01:00
Peter Maydell 3faf2b0cd5 hw/intc/arm_gicv3: Move irq lines into GICv3CPUState structure
Move the GICv3 parent_irq and parent_fiq pointers into the
GICv3CPUState structure rather than giving them their own array.
This will make it easy to assert the IRQ and FIQ lines for a
particular CPU interface without having to know or calculate
the CPU index for the GICv3CPUState we are working on.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1465915112-29272-8-git-send-email-peter.maydell@linaro.org
2016-06-17 15:23:51 +01:00
Pavel Fedin 07e2034d08 hw/intc/arm_gicv3: Add state information
Add state information to GICv3 object structure and implement
arm_gicv3_common_reset().

This commit includes accessor functions for the fields which are
stored as bitmaps in uint32_t arrays.

Signed-off-by: Pavel Fedin <p.fedin@samsung.com>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1465915112-29272-7-git-send-email-peter.maydell@linaro.org
[PMM: significantly overhauled:
 * Add missing qom/cpu.h include
 * Remove legacy-only state fields (we can add them later if/when we add
   legacy emulation)
 * Use arrays of uint32_t to store the various distributor bitmaps,
   and provide accessor functions for the various set/test/etc operations
 * Add various missing register offset #defines
 * Accessor macros which combine distributor and redistributor behaviour
   removed
 * Fields in state structures renamed to match architectural register names
 * Corrected the reset value for GICR_IENABLER0 since we don't support
   legacy mode
 * Added ARM_LINUX_BOOT_IF interface for "we are directly booting a kernel in
   non-secure" so that we can fake up the firmware-mandated reconfiguration
   only when we need it
]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
2016-06-17 15:23:51 +01:00
Peter Maydell b355438de5 bitops.h: Implement half-shuffle and half-unshuffle ops
A half-shuffle operation takes a word with zeros in the high half:
 0000 0000 0000 0000 ABCD EFGH IJKL MNOP
and spreads the bits out so they are in every other bit of the word:
 0A0B 0C0D 0E0F 0G0H 0I0J 0K0L 0M0N 0O0P
A half-unshuffle performs the reverse operation.

Provide functions in bitops.h which implement these operations
for 32-bit and 64-bit inputs, and add tests for them.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1465915112-29272-3-git-send-email-peter.maydell@linaro.org
2016-06-17 15:23:51 +01:00
Peter Maydell 04716bc8fd migration: Define VMSTATE_UINT64_2DARRAY
Define a VMSTATE_UINT64_2DARRAY macro, to go with the ones we
already have for other type sizes.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Message-id: 1465915112-29272-2-git-send-email-peter.maydell@linaro.org
2016-06-17 15:23:51 +01:00
Eduardo Habkost f9a8b5530d qdev: Use GList for global properties
If the same GlobalProperty struct is registered twice, the list
entry gets corrupted, making tqe_next points to itself, and
qdev_prop_set_globals() gets stuck in a loop. The bug can be
easily reproduced by running:

  $ qemu-system-x86_64 -rtc-td-hack -rtc-td-hack

Change global_props to use GList instead of queue.h, making the
code simpler and able to deal with properties being registered
twice.

Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-06-17 10:42:21 -03:00
Peter Maydell 4acc8fdfd3 ppc patch queue for 2016-06-17
Here's the current accumulated set of spapr, ppc and related patches.
   * The big thing in here is CPU hotplug for spapr
     - This includes a number of acked generic changes adding new
       infrastructure for hotplugging cpu cores
   * A number of TCG bug fixes are also included
   * This adds a new testcase to make it harder to accidentally break
     Macintosh (and other openbios) platforms
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.7-20160617' into staging

ppc patch queue for 2016-06-17

Here's the current accumulated set of spapr, ppc and related patches.
  * The big thing in here is CPU hotplug for spapr
    - This includes a number of acked generic changes adding new
      infrastructure for hotplugging cpu cores
  * A number of TCG bug fixes are also included
  * This adds a new testcase to make it harder to accidentally break
    Macintosh (and other openbios) platforms

# gpg: Signature made Fri 17 Jun 2016 07:35:29 BST
# gpg:                using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.7-20160617:
  spapr: implement query-hotpluggable-cpus callback
  hmp: Add 'info hotpluggable-cpus' HMP command
  QMP: Add query-hotpluggable-cpus
  spapr: CPU hot unplug support
  spapr: CPU hotplug support
  spapr: convert boot CPUs into CPU core devices
  spapr: Move spapr_cpu_init() to spapr_cpu_core.c
  spapr: Abstract CPU core device and type specific core devices
  qom: API to get instance_size of a type
  spapr_drc: Prevent detach racing against attach for CPU DR
  xics,xics_kvm: Handle CPU unplug correctly
  cpu: Abstract CPU core type
  qdev: hotplug: Introduce HotplugHandler.pre_plug() callback
  target-ppc: Fix rlwimi, rlwinm, rlwnm
  vfio: Fix broken EEH
  target-ppc: Bug in BookE wait instruction
  ppc / sparc: Add a tester for checking whether OpenBIOS runs successfully
  hw/ppc/spapr: Silence deprecation message in qtest mode

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-17 12:36:27 +01:00
Peter Maydell 7263a903c3 pc, pci, virtio: new features, cleanups, fixes
Beginning of reconnect support for vhost-user.
 Misc cleanups and fixes.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc, pci, virtio: new features, cleanups, fixes

Beginning of reconnect support for vhost-user.
Misc cleanups and fixes.

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

# gpg: Signature made Fri 17 Jun 2016 01:28:39 BST
# gpg:                using RSA key 0x281F0DB8D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>"
# 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:
  MAINTAINERS: add Marcel to PCI
  msi_init: change return value to 0 on success
  fix some coding style problems
  pci core: assert ENOSPC when add capability
  test: start vhost-user reconnect test
  tests: append i386 tests
  vhost-net: save & restore vring enable state
  vhost-net: save & restore vhost-user acked features
  vhost-net: do not crash if backend is not present
  vhost-user: disconnect on start failure
  qemu-char: add qemu_chr_disconnect to close a fd accepted by listen fd
  tests/vhost-user-bridge: workaround stale vring base
  tests/vhost-user-bridge: add client mode
  vhost-user: add ability to know vhost-user backend disconnection
  pci: fix pci_requester_id()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

Conflicts:
	tests/Makefile.include
2016-06-17 11:25:46 +01:00
Igor Mammedov d4633541ee QMP: Add query-hotpluggable-cpus
It will allow mgmt to query present and hotpluggable CPU objects,
it is required from a target platform that wishes to support command
to implement and set MachineClass.query_hotpluggable_cpus callback,
which will return a list of possible CPU objects with options that
would be needed for hotplugging possible CPU objects.

There are:
'type': 'str' - QOM CPU object type for usage with device_add
'vcpus-count': 'int' - number of logical VCPU threads per
                        CPU object (mgmt needs to know)

and a set of optional fields that are to used for hotplugging a CPU
objects and would allows mgmt tools to know what/where it could be
hotplugged;
[node],[socket],[core],[thread]

For present CPUs there is a 'qom-path' field which would allow mgmt to
inspect whatever object/abstraction the target platform considers
as CPU object.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:49 +10:00
Bharata B Rao 6f4b5c3ec5 spapr: CPU hot unplug support
Remove the CPU core device by removing the underlying CPU thread devices.
Hot removal of CPU for sPAPR guests is achieved by sending the hot unplug
notification to the guest. Release the vCPU object after CPU hot unplug so
that vCPU fd can be parked and reused.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:49 +10:00
Bharata B Rao af81cf323c spapr: CPU hotplug support
Set up device tree entries for the hotplugged CPU core and use the
exising RTAS event logging infrastructure to send CPU hotplug notification
to the guest.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:49 +10:00
Bharata B Rao 94a94e4c49 spapr: convert boot CPUs into CPU core devices
Introduce sPAPRMachineClass.dr_cpu_enabled to indicate support for
CPU core hotplug. Initialize boot time CPUs as core deivces and prevent
topologies that result in partially filled cores. Both of these are done
only if CPU core hotplug is supported.

Note: An unrelated change in the call to xics_system_init() is done
in this patch as it makes sense to use the local variable smt introduced
in this patch instead of kvmppc_smt_threads() call here.

TODO: We derive sPAPR core type by looking at -cpu <model>. However
we don't take care of "compat=" feature yet for boot time as well
as hotplug CPUs.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:49 +10:00
Bharata B Rao afd10a0fa6 spapr: Move spapr_cpu_init() to spapr_cpu_core.c
Start consolidating CPU init related routines in spapr_cpu_core.c. As
part of this, move spapr_cpu_init() and its dependencies from spapr.c
to spapr_cpu_core.c

No functionality change in this patch.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
[dwg: Rename TIMEBASE_FREQ to SPAPR_TIMEBASE_FREQ, since it's now in a
 public(ish) header]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:48 +10:00
Bharata B Rao 3b54254966 spapr: Abstract CPU core device and type specific core devices
Add sPAPR specific abastract CPU core device that is based on generic
CPU core device. Use this as base type to create sPAPR CPU specific core
devices.

TODO:
- Add core types for other remaining CPU types
- Handle CPU model alias correctly

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:48 +10:00
Bharata B Rao 3f97b53a68 qom: API to get instance_size of a type
Add an API object_type_get_size(const char *typename) that returns the
instance_size of the give typename.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:48 +10:00
Bharata B Rao aab99135b6 spapr_drc: Prevent detach racing against attach for CPU DR
If a CPU is hot removed while hotplug of the same is still in progress,
the guest crashes. Prevent this by ensuring that detach is done only
after attach has completed.

The existing code already prevents such race for PCI hotplug. However
given that CPU is a logical DR unlike PCI and starts with ISOLATED
state, we need a logic that works for CPU too.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
               [Don't set awaiting_attach for PCI devices]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:48 +10:00
Bharata B Rao 4a4b344c7c xics,xics_kvm: Handle CPU unplug correctly
XICS is setup for each CPU during initialization. Provide a routine
to undo the same when CPU is unplugged. While here, move ss->cs management
into xics from xics_kvm since there is nothing KVM specific in it.
Also ensure xics reset doesn't set irq for CPUs that are already unplugged.

This allows reboot of a VM that has undergone CPU hotplug and unplug
to work correctly.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:48 +10:00
Bharata B Rao f1020c2c26 cpu: Abstract CPU core type
Add an abstract CPU core type that could be used by machines that want
to define and hotplug CPUs in core granularity.

Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
               [Integer core property]
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
[dwg: changed property names to 'core-id' and 'nr-threads']
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:48 +10:00
Igor Mammedov 41346263c4 qdev: hotplug: Introduce HotplugHandler.pre_plug() callback
pre_plug callback is to be called before device.realize() is executed.
This would allow to check/set device's properties from HotplugHandler.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2016-06-17 16:33:48 +10:00
Marc-André Lureau bfc6cf31ce vhost-net: save & restore vring enable state
A driver may change the vring enable state at run time but vhost-user
backend may not be present (a contrived example is when the backend is
disconnected and the device is reconfigured after driver rebinding)

Restore the vring state when the vhost-user backend is started, so it
can process the ring.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-17 03:28:03 +03:00
Marc-André Lureau a463215b08 vhost-net: save & restore vhost-user acked features
The initial vhost-user connection sets the features to be negotiated
with the driver. Renegotiation isn't possible without device reset.

To handle reconnection of vhost-user backend, ensure the same set of
features are provided, and reuse already acked features.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-17 03:28:03 +03:00
Tetsuya Mukawa 7d9d17f71e qemu-char: add qemu_chr_disconnect to close a fd accepted by listen fd
The patch introduces qemu_chr_disconnect(). The function is used for
closing a fd accepted by listen fd. Though we already have qemu_chr_delete(),
but it closes not only accepted fd but also listen fd. This new function
is used when we still want to keep listen fd.

Signed-off-by: Tetsuya Mukawa <mukawa@igel.co.jp>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Yuanhan Liu <yuanhan.liu@linux.intel.com>
Reviewed-by: Victor Kaplansky <victork@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-17 03:28:02 +03:00
Peter Xu 4a94b3aa6d pci: fix pci_requester_id()
This fix SID verification failure when IOMMU IR is enabled with PCI
bridges. Existing pci_requester_id() is more like getting BDF info
only. Renaming it to pci_get_bdf(). Meanwhile, we provide the correct
implementation to get requester ID. VT-d spec 5.1.1 is a good reference
to go, though it talks only about interrupt delivery, the rule works
exactly the same for non-interrupt cases.

Currently, there are three use cases for pci_requester_id():

- PCIX status bits: here we need BDF only, not requester ID. Replacing
  with pci_get_bdf().
- PCIe Error injection and MSI delivery: for both these cases, we are
  looking for requester IDs. Here we should use the new impl.

To avoid a PCI walk every time we send MSI message, one requester_id
cache field is added to PCIDevice to cache the result when initialize
PCI device.

Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2016-06-17 03:28:02 +03:00
Prasad J Pandit 926cde5f3e scsi: esp: make cmdbuf big enough for maximum CDB size
While doing DMA read into ESP command buffer 's->cmdbuf', it could
write past the 's->cmdbuf' area, if it was transferring more than 16
bytes.  Increase the command buffer size to 32, which is maximum when
's->do_cmd' is set, and add a check on 'len' to avoid OOB access.

Reported-by: Li Qiang <liqiang6-s@360.cn>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16 18:39:05 +02:00
Eric Blake 943cec86d0 nbd: Avoid magic number for NBD max name size
Declare a constant and use that when determining if an export
name fits within the constraints we are willing to support.

Note that upstream NBD recently documented that clients MUST
support export names of 256 bytes (not including trailing NUL),
and SHOULD support names up to 4096 bytes.  4096 is a bit big
(we would lose benefits of stack-allocation of a name array),
and we already have other limits in place (for example, qcow2
snapshot names are clamped around 1024).  So for now, just
stick to the required minimum, as that's easier to audit than
a full-scale support for larger names.

Signed-off-by: Eric Blake <eblake@redhat.com>

Message-Id: <1463006384-7734-12-git-send-email-eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16 18:39:05 +02:00
Paolo Bonzini 56af2dda98 nbd: simplify the nbd_request and nbd_reply structs
These structs are never used to represent the bytes that go over the
network.  The big-endian network data is built into a uint8_t array
in nbd_{receive,send}_{request,reply}.  Remove the unused magic field,
reorder the struct to avoid holes, and remove the packed attribute.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16 18:39:04 +02:00
Paolo Bonzini e9abfcb57f clean-includes: run it once more
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16 18:39:03 +02:00
Paolo Bonzini 02d0e09503 os-posix: include sys/mman.h
qemu/osdep.h checks whether MAP_ANONYMOUS is defined, but this check
is bogus without a previous inclusion of sys/mman.h.  Include it in
sysemu/os-posix.h and remove it from everywhere else.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-06-16 18:39:03 +02:00
Max Reitz 274fccee2b block/mirror: Fix target backing BDS
Currently, we are trying to move the backing BDS from the source to the
target in bdrv_replace_in_backing_chain() which is called from
mirror_exit(). However, mirror_complete() already tries to open the
target's backing chain with a call to bdrv_open_backing_file().

First, we should only set the target's backing BDS once. Second, the
mirroring block job has a better idea of what to set it to than the
generic code in bdrv_replace_in_backing_chain() (in fact, the latter's
conditions on when to move the backing BDS from source to target are not
really correct).

Therefore, remove that code from bdrv_replace_in_backing_chain() and
leave it to mirror_complete().

Depending on what kind of mirroring is performed, we furthermore want to
use different strategies to open the target's backing chain:

- If blockdev-mirror is used, we can assume the user made sure that the
  target already has the correct backing chain. In particular, we should
  not try to open a backing file if the target does not have any yet.

- If drive-mirror with mode=absolute-paths is used, we can and should
  reuse the already existing chain of nodes that the source BDS is in.
  In case of sync=full, no backing BDS is required; with sync=top, we
  just link the source's backing BDS to the target, and with sync=none,
  we use the source BDS as the target's backing BDS.
  We should not try to open these backing files anew because this would
  lead to two BDSs existing per physical file in the backing chain, and
  we would like to avoid such concurrent access.

- If drive-mirror with mode=existing is used, we have to use the
  information provided in the physical image file which means opening
  the target's backing chain completely anew, just as it has been done
  already.
  If the target's backing chain shares images with the source, this may
  lead to multiple BDSs per physical image file. But since we cannot
  reliably ascertain this case, there is nothing we can do about it.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-id: 20160610185750.30956-3-mreitz@redhat.com
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-06-16 15:20:37 +02:00
Kevin Wolf c9d20029f4 block: Remove bs->zero_beyond_eof
It is always true for open images now.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-16 15:19:56 +02:00
Kevin Wolf 1a8ae82217 block: Make bdrv_load/save_vmstate coroutine_fns
This allows drivers to share code between normal I/O and vmstate
accesses.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-16 15:19:56 +02:00
Kevin Wolf 5ddda0b8f0 block: Make .bdrv_load_vmstate() vectored
This brings it in line with .bdrv_save_vmstate().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-16 15:19:55 +02:00
Kevin Wolf f1e8474115 block: Introduce bdrv_preadv()
We already have a byte-based bdrv_pwritev(), but the read counterpart
was still missing. This commit adds it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-16 15:19:55 +02:00
Kevin Wolf 244483e64e block: Byte-based bdrv_co_do_copy_on_readv()
In a first step to convert the common I/O path to work on bytes rather
than sectors, this converts the copy-on-read logic that is used by
bdrv_aligned_preadv().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-06-16 15:19:55 +02:00
Eric Blake fa16653874 block: Assert that flags are in range
Add a new BDRV_REQ_MASK constant, and use it to make sure that
caller flags are always valid.

Tested with 'make check' and with qemu-iotests on both '-raw'
and '-qcow2'; the only failure turned up was fixed in the
previous commit.

Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2016-06-16 15:19:55 +02:00
Peter Maydell a66370b08d Migration:
- Fixes for TLS series
 - Postcopy: Add stats, fix, test case
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Merge remote-tracking branch 'remotes/amit-migration/tags/migration-for-2.7-4' into staging

Migration:

- Fixes for TLS series
- Postcopy: Add stats, fix, test case

# gpg: Signature made Thu 16 Jun 2016 05:40:09 BST
# gpg:                using RSA key 0xEB0B4DFC657EF670
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg:                 aka "Amit Shah <amit@kernel.org>"
# gpg:                 aka "Amit Shah <amitshah@gmx.net>"
# Primary key fingerprint: 48CA 3722 5FE7 F4A8 B337  2735 1E9A 3B5F 8540 83B6
#      Subkey fingerprint: CC63 D332 AB8F 4617 4529  6534 EB0B 4DFC 657E F670

* remotes/amit-migration/tags/migration-for-2.7-4:
  migration: rename functions to starting migrations
  migration: fix typos in qapi-schema from latest migration additions
  Postcopy: Check for support when setting the capability
  tests: fix libqtest socket timeouts
  test: Postcopy
  Postcopy: Add stats on page requests
  Migration: Split out ram part of qmp_query_migrate
  Postcopy: Avoid 0 length discards

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-16 10:53:33 +01:00
Daniel P. Berrange 22724f4921 migration: rename functions to starting migrations
Apply the following renames for starting incoming migration:

 process_incoming_migration -> migration_fd_process_incoming
 migration_set_incoming_channel -> migration_channel_process_incoming
 migration_tls_set_incoming_channel -> migration_tls_channel_process_incoming

and for starting outgoing migration:

 migration_set_outgoing_channel -> migration_channel_connect
 migration_tls_set_outgoing_channel -> migration_tls_channel_connect

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1464776234-9910-3-git-send-email-berrange@redhat.com
Message-Id: <1464776234-9910-3-git-send-email-berrange@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-16 09:51:37 +05:30
Dr. David Alan Gilbert d3bf5418e2 Postcopy: Add stats on page requests
On the source, add a count of page requests received from the
destination.

Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Denis V. Lunev <den@openvz.org>
Message-id: 1465816605-29488-4-git-send-email-dgilbert@redhat.com
Message-Id: <1465816605-29488-4-git-send-email-dgilbert@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2016-06-16 09:50:07 +05:30
Radim Krčmář 5232d00a04 target-i386: Implement CPUID[0xB] (Extended Topology Enumeration)
I looked at a dozen Intel CPU that have this CPUID and all of them
always had Core offset as 1 (a wasted bit when hyperthreading is
disabled) and Package offset at least 4 (wasted bits at <= 4 cores).

QEMU uses more compact IDs and it doesn't make much sense to change it
now.  I keep the SMT and Core sub-leaves even if there is just one
thread/core;  it makes the code simpler and there should be no harm.

Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-06-14 16:17:08 -03:00
Igor Mammedov d86c145114 pc: Add 2.7 machine
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-06-14 16:17:08 -03:00
Peter Maydell 49237b856a Xen 2016/06/14
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Merge remote-tracking branch 'remotes/sstabellini/tags/xen-20160614-tag' into staging

Xen 2016/06/14

# gpg: Signature made Tue 14 Jun 2016 16:01:52 BST
# gpg:                using RSA key 0x894F8F4870E1AE90
# gpg: Good signature from "Stefano Stabellini <stefano.stabellini@eu.citrix.com>"
# Primary key fingerprint: D04E 33AB A51F 67BA 07D3  0AEA 894F 8F48 70E1 AE90

* remotes/sstabellini/tags/xen-20160614-tag:
  xen: Clean up includes
  xen/blkif: avoid double access to any shared ring request fields

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-14 16:32:32 +01:00
KONRAD Frederic b93dbcdd59 arm: xlnx-zynqmp: Add xlnx-dp and xlnx-dpdma
This adds the DP and the DPDMA to the Zynq MP platform.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Tested-By: Hyun Kwon <hyun.kwon@xilinx.com>
Message-id: 1465833014-21982-10-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-14 16:01:03 +01:00
KONRAD Frederic 58ac482a66 introduce xlnx-dp
This is the implementation of the DisplayPort.
It has an aux-bus to access dpcd and edid.

Graphic plane is connected to the channel 3.
Video plane is connected to the channel 0.
Audio stream are connected to the channels 4 and 5.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-By: Hyun Kwon <hyun.kwon@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Message-id: 1465833014-21982-9-git-send-email-fred.konrad@greensocs.com
[PMM: fixed format strings]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-14 16:01:03 +01:00
KONRAD Frederic d3c6369a96 introduce xlnx-dpdma
This is the implementation of the DPDMA.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Tested-By: Hyun Kwon <hyun.kwon@xilinx.com>
Message-id: 1465833014-21982-8-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-14 16:01:03 +01:00
Peter Maydell 78c71af804 hw/i2c-ddc.c: Implement DDC I2C slave
Implement an I2C slave which implements DDC and returns the
EDID data for an attached monitor.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Tested-by: Hyun Kwon <hyun.kwon@xilinx.com>
Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1465833014-21982-7-git-send-email-fred.konrad@greensocs.com

  - Rebased on the current master.
  - Modified for QOM.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Tested-By: Hyun Kwon <hyun.kwon@xilinx.com>
[PMM: actually wire up the vmstate to dc->vmsd]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-14 15:59:15 +01:00
KONRAD Frederic e27ed1bdd3 introduce dpcd module
This introduces dpcd module.
It wires on a aux-bus and can be accessed by the driver to get lane-speed, etc.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Alistair Francis <alistair.francis@xilinx.com>
Reviewed-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Tested-By: Hyun Kwon <hyun.kwon@xilinx.com>
Message-id: 1465833014-21982-6-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-06-14 15:59:15 +01:00