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8664 commits

Author SHA1 Message Date
Alexander Graf dbe30e13e8 openpic: fix minor coding style issues
This patch removes all remaining occurences of spaces before function
parameter indicating parenthesis.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:57 +01:00
Alexander Graf 68d1e1f52d MSI-X: Fix endianness
The MSI-X vector tables are usually stored in little endian in memory,
so let's mark the accessors as such.

This fixes MSI-X on e500 for me.

Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-14 13:12:57 +01:00
Alexander Graf 997505065d PPC: e500: Declare pci bridge as bridge
The new PCI host bridge device needs to identify itself as PCI host bridge.
Declare it as such.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf a911b7a920 PPC: e500: Add MSI support
Now that our interrupt controller supports MSIs, let's expose that feature
to the guest through the device tree!

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf 732aa6ec26 openpic: add Shared MSI support
The OpenPIC allows MSI access through shared MSI registers. Implement
them for the MPC8544 MPIC, so we can support MSIs.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf dbbbfd6058 openpic: make brr1 model specific
Now that we can properly distinguish between openpic model differences,
let's move brr1 out of the raven code path.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf d0b7263134 openpic: convert to qdev
This patch converts the OpenPIC device to qdev. Along the way it
renames the "openpic" target to "raven" and the "mpic" target to
"fsl_mpic_20", to better reflect the actual models they implement.

This way we have a generic OpenPIC device now that can handle
different flavors of the OpenPIC specification.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf 5bac070111 openpic: remove irq_out
The current openpic emulation contains half-ready code for bypass mode.
Remove it, so that when someone wants to finish it they can start from a
clean state.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf 6d544ee8ac openpic: rename openpic_t to OpenPICState
Rename the openpic_t struct to OpenPICState, so it adheres better to
the current coding style rules.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf 1945dbc15f openpic: convert simple reg operations to builtin bitops
The openpic code has its own bitmap code to access bits inside of a
bitmap. However, that is overkill when we simply want to check for a
bit inside of a uint32_t.

So instead, let's use normal bit masks and C builtin shifts and ands.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf e1d1085152 openpic: remove unused type variable
The openpic source irqs are carrying around a type indicator that
is never accessed by anything. Remove it.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf 35732cb41e openpic: unify memory api subregions
The only difference between the "openpic" and "mpic" memory api subregion
descriptors is the endianness. Unify them as openpic accessors with explicit
endianness markers in their names.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:56 +01:00
Alexander Graf 825463b384 openpic: combine openpic and mpic reset functions
The openpic and mpic reset handlers are almost identical. Combine
them and extract the differences into state variables.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:55 +01:00
Alexander Graf c38c0b8ad0 openpic: merge mpic and openpic timer handling
The openpic and mpic timer handling code is basically the same.
Merge them.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:55 +01:00
Alexander Graf 5861a33898 openpic: combine mpic and openpic irq raise functions
The IRQ raise mechanisms of the OpenPIC and MPIC controllers is identical,
just that the MPIC one can also raise critical interrupts.

Combine those two and check for critical raise capability during runtime.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:55 +01:00
Alexander Graf 780d16b77f openpic: Convert subregions to memory api
The "openpic" controller is currently using one big region and does
subregion dispatching manually. Move this to the memory api.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:55 +01:00
Alexander Graf a285f1ca70 openpic: combine mpic and openpic src handlers
The MPIC source irq handler suddenly became identical to the standard
OpenPIC source irq handler. Combine them into the same function.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:55 +01:00
Alexander Graf b9b2aaa3c6 openpic: update to proper memory api
The openpic code was still using the old mmio memory api. Convert it to
be a generic memory api user and clean up some code that becomes redundant
that way.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:55 +01:00
Alexander Graf cdbb912a6f mpic: Unify numbering scheme
MPIC interrupt numbers in Linux (device tree) and in QEMU are different,
because QEMU takes the sparseness of the IRQ number space into account.

Remove that cleverness and instead assume a flat number space. This makes
the code easier to understand, because we are actually aligned with Linux
on the view of our worlds.

Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:55 +01:00
Alexander Graf 38898d7ed8 openpic: Remove unused code
The openpic code had a few WIP bits left that nobody reanimated within
the last few years. Remove that code.

Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Hervé Poussineau <hpoussin@reactos.org>
2012-12-14 13:12:55 +01:00
David Gibson 8b1853e7d8 pseries: Don't allow TCE (iommu) tables to be registered with duplicate LIOBNs
The PAPR specification requires that every bus or device mediated by the
IOMMU have a unique Logical IO Bus Number (LIOBN).  This patch adds a check
to enforce this, which will help catch errors in configuration earlier.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:55 +01:00
Bharat Bhushan 3eddc1be1c Adding BAR0 for e500 PCI controller
PCI Root complex have TYPE-1 configuration header while PCI endpoint
have type-0 configuration header. The type-1 configuration header have
a BAR (BAR0). In Freescale PCI controller BAR0 is used for mapping pci
address space to CCSR address space. This can used for 2 purposes: 1)
for MSI interrupt generation 2) Allow CCSR registers access when configured
as PCI endpoint, which I am not sure is a use case with QEMU-KVM guest.

What I observed is that when guest read the size of BAR0 of host controller
configuration header (TYPE1 header) then it always reads it as 0. When
looking into the QEMU hw/ppce500_pci.c, I do not find the PCI controller
device registering BAR0. I do not find any other controller also doing so
may they do not use BAR0.

There are two issues when BAR0 is not there (which I can think of):
1) There should be BAR0 emulated for PCI Root complex (TYPE1 header) and
when reading the size of BAR0, it should give size as per real h/w.

2) Do we need this BAR0 inbound address translation?
        When BAR0 is of non-zero size then it will be configured for PCI
address space to local address(CCSR) space translation on inbound access.
The primary use case is for MSI interrupt generation. The device is
configured with an address offsets in PCI address space, which will be
translated to MSI interrupt generation MPIC registers. Currently I do
not understand the MSI interrupt generation mechanism in QEMU and also
IIRC we do not use QEMU MSI interrupt mechanism on e500 guest machines.
But this BAR0 will be used when using MSI on e500.

I can see one more issue, There are ATMUs emulated in hw/ppce500_pci.c,
but i do not see these being used for address translation.
So far that works because pci address space and local address space are 1:1
mapped. BAR0 inbound translation + ATMU translation will complete the address
translation of inbound traffic.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
[agraf: fix double variable assignment w/o read]
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:54 +01:00
Bharat Bhushan dffb1dc29f e500: Adding CCSR memory region
All devices are also placed under CCSR memory region.
The CCSR memory region is exported to pci device. The MSI interrupt
generation is the main reason to export the CCSR region to PCI device.
This put the requirement to move mpic under CCSR region, but logically
all devices should be under CCSR. So this patch places all emulated
devices under ccsr region.

Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:54 +01:00
David Gibson 639e8102ae pseries: Implement PAPR NVRAM
The PAPR specification requires a certain amount of NVRAM, accessed via
RTAS, which we don't currently implement in qemu.  This patch addresses
this deficiency, implementing the NVRAM as a VIO device, with some glue to
instantiate it automatically based on a machine option.

The machine option specifies a drive id, which is used to back the NVRAM,
making it persistent.  If nothing is specified, the driver instead simply
allocates space for the NVRAM, which will not be persistent

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:54 +01:00
David Gibson 22a2611c9c pseries: Split xics irq configuration from state information
Currently the XICS irq controller code has a per-irq state structure which
amongst other things includes whether the interrupt is level or message
triggered - this is configured by the platform code, and is not directly
visible to the guest.  This leads to a slightly awkward construct at reset
time where we need to reset everything in the state structure _except_ the
lsi/msi flag, which needs to retain the information given at platform init
time.

More importantly this flag will make matching the qemu state to the KVM
state for the upcoming in-kernel XICS implementation more awkward.  This
patch, therefore, removes this flag from the per-irq state structure,
instead adding a parallel array giving the lsi/msi configuration per irq.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:54 +01:00
David Gibson 500efa2319 pseries: Add tracepoints to the XICS interrupt controller
This patch adds tracing / debugging calls to the XICS interrupt controller
implementation used on the pseries machine.

Signed-off-by: Ben Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:54 +01:00
Ben Herrenschmidt d36b66f7a4 pseries: Allow RTAS tokens without a qemu handler
Kernel-based RTAS calls will not have a qemu handler, but will
still be registered in qemu in order to be assigned a token
number and appear in the device-tree.

Let's test for the name being NULL rather than the handler
when deciding to skip an entry while building the device-tree

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:54 +01:00
Michael Ellerman 4aac82c346 pseries: Return the token when we register an RTAS call
The kernel will soon be able to service some RTAS calls. However the
choice of tokens will still be up to userspace. To support this have
spapr_rtas_register() return the token that is allocated for an
RTAS call, that allows the calling code to tell the kernel what the
token value is.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:54 +01:00
Ben Herrenschmidt bf3bc4c4e9 pseries: Use #define for XICS base irq number
Currently the lowest "real" irq number for the XICS irq controller (as
opposed to numbers reserved for IPIs and other special purposes) is
hard coded as 16 in two places - in xics_system_init() and in spapr.c.

As well as being generally bad practice, we're going to need to change this
number soon to fit in with the in-kernel XICS implementation.  This patch
adds a #define for this number to avoid future breakage.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Ben Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:53 +01:00
David Gibson 044f4c8b0e pseries: Fix incorrect initialization of interrupt controller
Currently in the reset code for the XICS interrupt controller, we
initialize the pending_priority field to 0 (most favored, by XICS
convention).  This is incorrect, since there is no pending interrupt, it
should be set to least favored - 0xff.  At the moment our XICS
implementation doesn't get hurt by this edge case, but it does confuse the
upcoming kernel XICS implementation.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-12-14 13:12:53 +01:00
Anthony Liguori e376a788ae Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony: (43 commits)
  qcow2: Factor out handle_dependencies()
  qcow2: Execute run_dependent_requests() without lock
  qcow2: Enable dirty flag in qcow2_alloc_cluster_link_l2
  qcow2: Allocate l2meta only for cluster allocations
  qcow2: Drop l2meta.cluster_offset
  qcow2: Allocate l2meta dynamically
  qcow2: Introduce Qcow2COWRegion
  qcow2: Round QCowL2Meta.offset down to cluster boundary
  atapi: reset cdrom tray statuses on ide_reset
  qemu-iotests: Test concurrent cluster allocations
  qcow2: Move BLKDBG_EVENT out of the lock
  qemu-io: Add AIO debugging commands
  blkdebug: Implement suspend/resume of AIO requests
  blkdebug: Factor out remove_rule()
  blkdebug: Allow usage without config file
  create new function: qemu_opt_set_number
  use qemu_opts_create_nofail
  introduce qemu_opts_create_nofail function
  qemu-option: qemu_opt_set_bool(): fix code duplication
  qemu-option: qemu_opts_validate(): fix duplicated code
  ...

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-13 14:32:28 -06:00
Anthony Liguori df9330070e Merge remote-tracking branch 'pmaydell/arm-devs.next' into staging
* pmaydell/arm-devs.next:
  hw/ds1338.c: Fix handling of DAY (wday) register.
  hw/ds1338.c: Implement support for the control register.
  hw/ds1338.c: Ensure state is properly initialized.
  hw/ds1338.c: Fix handling of HOURS register.
  hw/ds1338.c: Add definitions for various flags in the RTC registers.
  hw/ds1338.c: Correct bug in conversion to BCD.
  exynos4210/mct: Avoid infinite loop on non incremental timers
  hw/arm_gic: fix target CPUs affected by set enable/pending ops
  xilinx_zynq: Add one variable to avoid overwriting QSPI bus
  hw/arm_gic_common: Correct GICC_PMR reset value for newer GICs
  hw/arm_gic: Fix comparison with priority mask register
  hw/arm_boot, exynos4210, highbank: Fix secondary boot GIC init

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-13 11:41:57 -06:00
Antoine Mathys 871edc5fdb hw/ds1338.c: Fix handling of DAY (wday) register.
Per the datasheet, the DAY (wday) register is user defined. Implement this.

Signed-off-by: Antoine Mathys <barsamin@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-13 14:05:28 +00:00
Antoine Mathys 996e91f04b hw/ds1338.c: Implement support for the control register.
Signed-off-by: Antoine Mathys <barsamin@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-13 14:05:28 +00:00
Antoine Mathys ed3d37d287 hw/ds1338.c: Ensure state is properly initialized.
Signed-off-by: Antoine Mathys <barsamin@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-13 14:05:28 +00:00
Antoine Mathys 59dda8e05b hw/ds1338.c: Fix handling of HOURS register.
Per the datasheet, the mapping between 12 and 24 hours modes is:
      0      <->  12   PM
      1-12   <->  1-12 AM
      13-23  <->  1-11 PM

Signed-off-by: Antoine Mathys <barsamin@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-13 14:05:27 +00:00
Antoine Mathys 95c9361598 hw/ds1338.c: Add definitions for various flags in the RTC registers.
Signed-off-by: Antoine Mathys <barsamin@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-13 14:05:27 +00:00
Antoine Mathys 580f5c0008 hw/ds1338.c: Correct bug in conversion to BCD.
Signed-off-by: Antoine Mathys <barsamin@gmail.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-13 14:05:27 +00:00
Amit Shah a75bf14650 virtio-serial: delete timer if active during exit
The post_load timer was being freed, but not deleted.  This could cause
problems when the timer is armed, but the device is hot-unplugged before
the callback is executed.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
2012-12-13 16:01:26 +05:30
Amit Shah bdb917bf8a virtio-serial: allocate post_load only at load-time
This saves us a few bytes in the VirtIOSerial struct.  Not a big
savings, but since the entire structure is used only during a short
while after migration, it's helpful to keep the struct cleaner and
smaller.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
2012-12-13 16:01:26 +05:30
Amit Shah 2e575a86ab virtio-serial: move active ports loading to separate function
The virtio_serial_load() function became too big, split the code that
gets the port info from the source into a separate function.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
2012-12-13 16:01:26 +05:30
Amit Shah c3587ca1a2 virtio-serial: use uint32_t to count ports
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2012-12-13 15:56:19 +05:30
Pavel Hrdina a7f3d65b65 atapi: reset cdrom tray statuses on ide_reset
Tray statuses should be also reseted. Some guests may lock the tray
and after reset before any kernel is loaded the tray should be unlocked.

Also if you reset the real computer the tray is closed. We should
do the same in qemu.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-12-13 11:17:35 +01:00
Michael S. Tsirkin 29002d9e10 pci: prepare makefiles for pci code reorganization
To make it easier to move code around without breaking
build at intermedite steps, tweak makefiles
to look in pci/ and hw/ for include files, automatically.
This will be reverted at the end of the reorganization.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2012-12-12 23:41:03 +02:00
Jason Baron 6f918e40e6 Fixup q35/ich9 Licenses
Cleanup the q35/ich9 license headers.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Isaku Yamahata <yamahata@valinux.co.jp>
2012-12-12 23:36:20 +02:00
Dong Xu Wang e478b448d7 use qemu_opts_create_nofail
We will use qemu_opts_create_nofail function, it can make code
more readable.

Signed-off-by: Dong Xu Wang <wdongxu@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-12-11 16:35:47 +01:00
Jean-Christophe DUBOIS 97331270e5 exynos4210/mct: Avoid infinite loop on non incremental timers
Check for a 0 "distance" value to avoid infinite loop when the
expired FCR timer was not programed with auto-increment.

With this change the behavior is coherent with the same type
of code in the exynos4210_gfrc_restart() function in the same
file.

Linux seems to mostly use this timer with auto-increment
which explain why it is not a problem most of the time.

However other OS might have a problem with this if they
don't use the auto-increment feature.

Signed-off-by: Jean-Christophe DUBOIS <jcd@tribudubois.net>
Reviewed-by: Evgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-11 12:54:47 +00:00
Daniel Sangorrin f47b48fb67 hw/arm_gic: fix target CPUs affected by set enable/pending ops
Fix a bug on the ARM GIC model where interrupts are not
set pending on the correct target CPUs when they are
triggered by writes to the Interrupt Set Enable or
Set Pending registers.

Signed-off-by: Daniel Sangorrin <dsl@ertl.jp>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-11 11:30:38 +00:00
walimis 79f5d67e9d xilinx_zynq: Add one variable to avoid overwriting QSPI bus
commit 7b482bcf xilinx_zynq: added QSPI controller

Adds one QSPI controller, which has two spi buses, one is for
spi0, and another is for spi1. But when initializing the spi1
bus, "dev" has been overwrited by the ssi_create_slave_no_init() function,
so that qdev_get_child_bus() returns NULL and the last two m25p80 flashes
won't be attached to the spi1 bus, but to main-system-bus.

Here we add one variable to avoid overwriting.

Signed-off-by: Liming Wang <walimisdev@gmail.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2012-12-11 11:30:37 +00:00
Peter Maydell ee3f095680 hw/arm_gic_common: Correct GICC_PMR reset value for newer GICs
The GIC architecture specification for v1 and v2 GICs (as found
on the Cortex-A9 and newer) states that the GICC_PMR reset value
is zero; this differs from the 0xf0 reset value used on 11MPCore.
The NVIC is different again in not having a CPU interface; since
we share the GIC code we must force the priority mask field to
allow through all interrupts.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
2012-12-11 11:30:37 +00:00
Peter Maydell cad065f18e hw/arm_gic: Fix comparison with priority mask register
The GIC spec states that only interrupts with higher priority
than the value in the GICC_PMR priority mask register are
passed through to the processor. We were incorrectly allowing
through interrupts with a priority equal to the specified
value: correct the comparison operation to match the spec.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
2012-12-11 11:30:37 +00:00
Peter Maydell bf471f7950 hw/arm_boot, exynos4210, highbank: Fix secondary boot GIC init
Fix the code in the secondary CPU boot stubs so that it correctly
initialises the GIC rather than relying on bugs or implementation
dependent aspects of the QEMU GIC implementation:
 * set the GIC_PMR.Priority field to all-ones, so that all
   interrupts are passed through. The default of all-zeroes
   means all interrupts are masked, and QEMU only booted because
   of a bug in the priority masking in our GIC implementation.
 * add a barrier after GIC setup and before WFI to ensure that
   GIC config is complete before we go into a possible low power
   state. This isn't needed with the software GIC model but could
   be required when using KVM and executing this code on the
   real hardware CPU.

Note that of the three secondary stub implementations, only
the common generic one needs to support both v6 and v7 DSB
encodings; highbank and exynos4210 will always be v7 CPUs.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
2012-12-11 11:30:37 +00:00
Christian Borntraeger 2d0d2837dc Support default block interfaces per QEMUMachine
There are QEMUMachines that have neither IF_IDE nor IF_SCSI as a
default/standard interface to their block devices / drives. Therefore,
this patch introduces a new field default_block_type per QEMUMachine
struct. The prior use_scsi field becomes thereby obsolete and is
replaced through .default_block_type = IF_SCSI.

This patch also changes the default for s390x to IF_VIRTIO and
removes an early hack that converts IF_IDE drives.
Other parties have already claimed interest (e.g. IF_SD for exynos)

To create a sane default, for machines that dont specify a
default_block_type, this patch makes IF_IDE = 0 and IF_NONE = 1.
I checked all users of IF_NONE (blockdev.c and ww/device-hotplug.c)
as well as IF_IDE and it seems that it is ok to change the defines -
in other words, I found no obvious (to me) assumption in the code
regarding IF_NONE==0. IF_NONE is only set if there is an
explicit if=none. Without if=* the interface becomes IF_DEFAULT.

I would suggest to have some additional care, e.g. by letting
this patch sit some days in the block tree.

Based on an initial patch from Einar Lueck <elelueck@de.ibm.com>

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Igor Mitsyanko <i.mitsyanko@samsung.com>
CC: Markus Armbruster <armbru@redhat.com>
CC: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-11 11:05:10 +01:00
David Gibson d567e62f98 virtio-blk: Remove duplicate property definition
For the virtio-blk device (via virtio-pci) the property "config-wce" is
defined in two places.  First, it's defined from the
DEFINE_VIRTIO_BLK_FEATURES macro, second it's defined directly in
virtio-pci, just two lines above the call to that macro.

The direct definition in virtio-pci.c is broken, since it operates on the
'config_wce' field of VirtIOBlkConf, which is never used anywhere else.
Therefore, this patch removes both the extra property definition and the
redundant field it works on.

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>
Cc: Paul 'Rusty' Russell <rusty@rustcorp.com.au>

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-11 11:04:25 +01:00
Alex Williamson d281084d3e vfio-pci: Don't use kvm_irqchip_in_kernel
kvm_irqchip_in_kernel() has an architecture specific meaning, so
we shouldn't be using it to determine whether to enabled KVM INTx
bypass.  kvm_irqfds_enabled() seems most appropriate.  Also use this
to protect our other call to kvm_check_extension() as that explodes
when KVM isn't enabled.

Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Cc: qemu-stable@nongnu.org
2012-12-10 11:30:03 -07:00
Anthony Liguori 1c97e303d4 Merge remote-tracking branch 'afaerber/qom-cpu' into staging
* afaerber/qom-cpu:
  target-i386: Postpone cpuid_level update to realize time
  target-i386: Use define for cpuid vendor string size
  target-i386: Separate feature string parsing from CPU model lookup
  target-i386/cpu.c: Coding style fixes
  qdev: qdev_create(): use error_report() instead of hw_error()
  sysemu.h: Include qemu-types.h instead of qemu-common.h
  Create qemu-types.h for struct typedefs
  qlist.h: Do not include qemu-common.h
  qga/channel-posix.c: Include headers it needs
  qapi/qmp-registry.c: Include headers it needs
  ui/vnc-palette.c: Include headers it needs
  user: Rename qemu-types.h to qemu-user-types.h
  user: Move *-user/qemu-types.h to main directory

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-10 08:35:15 -06:00
Anthony Liguori 7c12fd9b29 Merge remote-tracking branch 'stefanha/trivial-patches' into staging
* stefanha/trivial-patches:
  pc_sysfw: Plug memory leak on pc_fw_add_pflash_drv() error path
  qemu-options: Fix space at EOL
  Fix spelling in comments and documentation
  Clean up pci_drive_hot_add()'s use of BlockInterfaceType
  arm: a9mpcore: remove un-used ptimer_iomem field
  target-sparc: Remove t0, t1 from CPUSPARCState
  target-m68k: Remove t1 from CPUM68KState
  target-alpha: Remove t0, t1 from CPUAlphaState
  s390x: Spelling fixes (endianess -> endianness, occured -> occurred)
  Fix comments (adress -> address, layed -> laid, wierd -> weird)
  Fix spelling (prefered -> preferred)
  configure: Remove stray debug output
  sd: Send debug printfery to stderr not stdout

Conflicts:
	configure

Resolve spelling conflict in configure.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-10 08:34:29 -06:00
Anthony Liguori 8385b173a0 Merge remote-tracking branch 'kraxel/acpi.1' into staging
* kraxel/acpi.1:
  acpi: drop debug port
  q35: update lpc pci config space according to configured devices
  apci: switch piix4 pci hotplug to memory api
  acpi: remove acpi_gpe_blk
  apci: switch piix4 gpe to memory api
  acpi: fix piix4 smbus mapping
  acpi: switch smbus to memory api
  acpi: cleanup ich9 memory region
  apci: switch ich9 smi to memory api
  apci: switch ich9 gpe to memory api
  acpi: cleanup vt82c686 memory region
  acpi: cleanup piix4 memory region
  apci: switch evt to memory api
  apci: switch cnt to memory api
  apci: switch timer to memory api
  apci: switch vt82c686 to memory api
  apci: switch ich9 to memory api
  apci: switch piix4 to memory api

Conflicts:
	hw/lpc_ich9.c

Resolved merge conflict due to apm_init adding an argument.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-10 08:33:11 -06:00
Anthony Liguori c62adbee15 Merge remote-tracking branch 'kraxel/usb.74' into staging
* kraxel/usb.74:
  usb-tablet: Allow connecting to ehci
  ehci: Lower timer freq when the periodic schedule is idle
  usb: Allow overriding of usb_desc at the device level
  usb: Don't allow USB_RET_ASYNC for interrupt packets
  usb: Call wakeup when data becomes available for all devices with int eps
  add pc-1.4

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-10 08:31:19 -06:00
Blue Swirl 536b558f58 Merge branch 'master' of git.qemu-project.org:/pub/git/qemu
* 'master' of git.qemu-project.org:/pub/git/qemu:
  target-mips: Fix incorrect shift for SHILO and SHILOV
  target-mips: Fix incorrect code and test for INSV
  xilinx_uartlite: Accept input after rx FIFO pop
  xilinx_uartlite: suppress "cannot receive message"
  xilinx_axienet: Implement R_IS behaviour
2012-12-08 17:50:57 +00:00
Markus Armbruster 654598c944 pc_sysfw: Plug memory leak on pc_fw_add_pflash_drv() error path
Harmless, because we the error inevitably leads to another, fatal one
in pc_system_flash_init(): PC system firmware (pflash) not available.
Fix it anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-07 12:34:12 +01:00
Stefan Weil 993d46ce7e Fix spelling in comments and documentation
These spelling bugs were found by codespell:

supressing -> suppressing
transfered -> transferred

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-07 12:34:12 +01:00
Markus Armbruster 4dbd84e26f Clean up pci_drive_hot_add()'s use of BlockInterfaceType
pci_drive_hot_add() parameter type has the wrong type: int instead of
BlockInterfaceType.  It's actually redundant, so we can just drop it.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-07 12:34:12 +01:00
Peter Crosthwaite 036f0f8356 arm: a9mpcore: remove un-used ptimer_iomem field
I'm guessing this is a hangover from a previous coreification of the mptimer
sub-module. This field is completely unused - removed.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-07 12:34:12 +01:00
Stefan Weil 8367a14fd3 s390x: Spelling fixes (endianess -> endianness, occured -> occurred)
Replace also "write into" by "write to".

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-07 12:34:11 +01:00
Peter Crosthwaite 038d3d4459 sd: Send debug printfery to stderr not stdout
Some debug printfs for SD are coming up in stdout. Redirected them to stderr
instead.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2012-12-07 12:34:11 +01:00
Eduardo Habkost 23e3fbec33 qdev: qdev_create(): use error_report() instead of hw_error()
hw_error() is specific for fatal hardware emulation errors, not for
internal errors related to the qdev object/class abstraction or object
initialization.

Replace it with an error_report() call, followed by abort().

This will also help reduce dependencies of the qdev code (as hw_error()
is from cpus.o, and depends on the CPU list from exec.o).

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-06 09:17:05 +01:00
Eduardo Habkost 394e1bb795 Create qemu-types.h for struct typedefs
Instead of keeping all those struct typedefs in qemu-common.h, move it
to a header that can be safely included by other headers, containing
only the struct typedefs and not pulling in other dependencies.

Also, move some of the qdev-core.h typedefs to the new file, too, so
other headers don't need to include qdev-core.h only because of
DeviceState and other typedefs.

This will help us remove qemu-common.h dependencies from some headers
later.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-06 09:17:05 +01:00
Peter Crosthwaite 80625b97b5 xilinx_uartlite: Accept input after rx FIFO pop
The device return false from the can receive function when the FIFO is
full. This mean the device should check for buffered input whenever a byte is
popped from the FIFO.

Reported-by: Jason Wu <huanyu@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-12-05 09:20:36 +01:00
Peter Crosthwaite 859cc10d23 xilinx_uartlite: suppress "cannot receive message"
This message is not an error condition, its just informing the user that
the device is corking the uart traffic to not drop characters.

Reported-by: Jason Wu <huanyu@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-12-05 09:20:36 +01:00
Peter Crosthwaite d4d230da08 xilinx_axienet: Implement R_IS behaviour
The interrupt status register R_IS is the standard clear-on-write behaviour.
This was unimplemented and defaulting to updating the register to the written
value. Implemented clear-on-write.

Reported-by: Jason Wu <huanyu@xilinx.com>
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2012-12-05 09:20:36 +01:00
Julien Grall 5822993368 hw/dma.c: Replace register_ioport_*
Replace all register_ioport_*() with the new Memory API functions.
This permits to use the new Memory stuff like listeners.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-04 14:50:22 +01:00
Julien Grall 258711c644 hw/pc.c: Replace register_ioport_*
Replace all register_ioport_*() with portio_*() or a MemoryRegion.
This permits to use the new Memory stuff like listeners.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-04 14:50:22 +01:00
Julien Grall 568fd159e4 serial: Replace register_ioport_*
Replace all register_ioport_*() with a MemoryRegion.
This permits to use the new Memory stuff like listeners.

For more flexibility, the IO address space is passed as an argument.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto serial split]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-04 14:50:22 +01:00
Julien Grall c75e6d8e35 hw/cirrus_vga.c: Replace register_ioport_*
Replace all register_ioport_*() with the new Memory API.
This permits to use the new Memory stuff like listeners.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-04 14:50:21 +01:00
Julien Grall 42d8a3cf96 hw/apm.c: Replace register_ioport_*
Replace all register_ioport_*() with a MemoryRegion.
This permits to use the new Memory stuff like listeners.

Moreover, the PCI device is added as an argument for apm_init(),
so we can register IO inside the PCI IO address space.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
[AF: Rebased onto hwaddr and q35]
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-04 14:50:21 +01:00
Julien Grall ac10027327 isa: Add isa_address_space_io()
This function permits to retrieve ISA IO address space.
It will be usefull when we need to pass IO address space as argument.

Signed-off-by: Julien Grall <julien.grall@citrix.com>
Acked-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
2012-12-04 14:50:21 +01:00
Hans de Goede 427e3aa151 usb-tablet: Allow connecting to ehci
Our ehci code has is capable of significantly lowering the wakeup rate
for the hcd emulation while the device is idle. It is possible to add
similar code ot the uhci emulation, but that simply is not there atm,
and there is no reason why a (virtual) usb-tablet can not be a USB-2 device.

Making usb-hid devices connect to the emulated ehci controller instead
of the emulated uhci controller on vms which have both lowers the cpuload
for a fully idle vm from 20% to 2-3% (on my laptop).

An alternative implementation to using a property to select the tablet
type, would be simply making it a new device type, ie usb-tablet2, but the
downside of that is that this will require libvirt changes to be available
through libvirt at all, and then management tools changes to become the
default for new vms, where as using a property will automatically get
any pc-1.3 type vms the lower cpuload.

[ kraxel: adapt compat property for post-1.3 merge ]

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

tablet compat fixup

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 14:42:05 +01:00
Hans de Goede 8082624099 ehci: Lower timer freq when the periodic schedule is idle
Lower the timer freq if no iso schedule packets complete for 64 frames in
a row.

We can safely do this, without adding latency, because:
1) If there is isoc traffic this will never trigger
2) For async handled interrupt packets (only usb-host), the completion handler
   will immediately schedule the frame_timer from a bh
3) All devices using NAK to signal no data for interrupt endpoints now use
   wakeup, which will immediately schedule the frame_timer from a bh

The advantage of this is that when we only have interrupt packets in the
periodic schedule, async_stepdown can do its work and significantly lower
the frequency at which the frame_timer runs.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 14:41:54 +01:00
Hans de Goede 386ab487eb usb: Allow overriding of usb_desc at the device level
This allows devices to present a different set of descriptors based on
device properties.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 14:41:54 +01:00
Hans de Goede be41efde3c usb: Don't allow USB_RET_ASYNC for interrupt packets
It is tempting to use USB_RET_ASYNC for interrupt packets, rather then the
current NAK + polling approach, but this causes issues for migration, as
an async completed packet will not getting written back to guest memory until
the next poll time, and if a migration happens in between it will get lost!

Make an exception for host devices, because:
1) host-linux actually uses async completion for interrupt endpoints
2) host devices don't migrate anyways

Ideally we would convert host-linux.c to handle (input) interrupt endpoints in
a buffered manner like it does for isoc endpoints, keeping multiple urbs
submitted to ensure the devices timing requirements are met, as well as making
its interrupt ep handling the same as other usb-devices.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 14:41:54 +01:00
Hans de Goede 8beba93043 usb: Call wakeup when data becomes available for all devices with int eps
This is necessary for proper interaction with the xhci controller, and it
will allow other hcds to lower there frame timer while waiting for interrupt
data.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 14:41:54 +01:00
Gerd Hoffmann f1ae2e3883 add pc-1.4
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 14:41:54 +01:00
Gerd Hoffmann 3e43749882 acpi: drop debug port
I'm pretty sure this isn't needed any more.  I think this predates the
switch to seabios, and the seabios DSDT table has a DBUG() aml macro
which writes stuff to the seabios debug port (0x402).

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann 3f5bc9e8af q35: update lpc pci config space according to configured devices
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann c177684c75 apci: switch piix4 pci hotplug to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann c84649ca66 acpi: remove acpi_gpe_blk
With gpe being switched to memory api this is no longer needed.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann b65b93f24c apci: switch piix4 gpe to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann 24fe083de6 acpi: fix piix4 smbus mapping
Make write to the smbus base register and enable bit actually work.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann 798512e552 acpi: switch smbus to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann 4a522de090 acpi: cleanup ich9 memory region
Nothing left to do, everything handled by subregions,
we can zap the reaw/write handlers now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann 10cc69b0de apci: switch ich9 smi to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann 76a7daf974 apci: switch ich9 gpe to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:43 +01:00
Gerd Hoffmann a0f95659da acpi: cleanup vt82c686 memory region
Nothing left to do, everything handled by subregions,
we can zap the reaw/write handlers now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:42 +01:00
Gerd Hoffmann ca5d64b4b4 acpi: cleanup piix4 memory region
Nothing left to do, everything handled by subregions,
we can zap the reaw/write handlers now.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:42 +01:00
Gerd Hoffmann b5a7c024d2 apci: switch evt to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:42 +01:00
Gerd Hoffmann afafe4bbe0 apci: switch cnt to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:42 +01:00
Gerd Hoffmann 77d58b1e47 apci: switch timer to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:42 +01:00
Gerd Hoffmann a29028214c apci: switch vt82c686 to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:42 +01:00
Gerd Hoffmann cacaab8bdd apci: switch ich9 to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:42 +01:00
Gerd Hoffmann af11110bb8 apci: switch piix4 to memory api
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-12-04 13:52:42 +01:00
Michael Contreras b0d9ffcd02 e1000: Discard packets that are too long if !SBP and !LPE
The e1000_receive function for the e1000 needs to discard packets longer than
1522 bytes if the SBP and LPE flags are disabled. The linux driver assumes
this behavior and allocates memory based on this assumption.

Signed-off-by: Michael Contreras <michael@inetric.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-12-03 08:14:10 -06:00
Anthony Liguori 90e07938aa Merge remote-tracking branch 'kwolf/for-anthony' into staging
* kwolf/for-anthony:
  coroutine-sigaltstack.c: Use stack_t, not struct sigaltstack
  stream: fix ratelimit_set_speed
  atapi: make change media detection for guests easier
  Documentation: Update image format information
  Documentation: Update block cache mode information

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-30 10:24:24 -06:00
Anthony Liguori 3235f92784 Merge remote-tracking branch 'spice/spice.v65' into staging
* spice/spice.v65:
  qxl: reload memslots after migration, when qxl is in UNDEFINED mode

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-30 10:20:36 -06:00
Anthony Liguori 923fd9897b Merge remote-tracking branch 'kraxel/usb.73' into staging
* kraxel/usb.73:
  ehci-sysbus: Attach DMA context.
  usb: fail usbdevice_create() when there is no USB bus
  usb: tag usb host adapters as not hotpluggable.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-30 10:20:21 -06:00
Pavel Hrdina 0c6f08b0b0 atapi: make change media detection for guests easier
If you have a guest with a media in the optical drive and you change
it, the windows guest cannot properly recognize this media change.

Windows needs to detect sense "NOT_READY with ASC_MEDIUM_NOT_PRESENT"
before we send sense "UNIT_ATTENTION with ASC_MEDIUM_MAY_HAVE_CHANGED".

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-11-30 11:33:24 +01:00
Michael S. Tsirkin e1f7b4812e virtio: limit avail bytes lookahead
Commit 0d8d769085 introduced
a regression in virtio-net performance because it looks
into the ring aggressively while we really only care
about a single packet worth of buffers.
Reported as bugzilla 1066055 in launchpad.

To fix, add parameters limiting lookahead, and
use in virtqueue_avail_bytes.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reported-by: Edivaldo de Araujo Pereira <edivaldoapereira@yahoo.com.br>
Tested-by: Edivaldo de Araujo Pereira <edivaldoapereira@yahoo.com.br>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-29 17:25:02 -06:00
Anthony Liguori e912c96f7d qdev: relax bus type check in qdev_device_add() (v2)
We are currently checking for an exact type match.  Use QOM dynamic_cast to
check for a compatible type instead.

Cc: Konrad Frederic <fred.konrad@greensocs.com>
Cc: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
v1 -> v2:
 - also add cast to qbus_find_recursive (Peter)
 - simplify by doing object_dynamic_cast instead of messing with classes
2012-11-29 09:11:03 -06:00
Peter Crosthwaite 2b29f492c8 ehci-sysbus: Attach DMA context.
This was left as NULL on the initial merge due to debate on the mailing list on
how to handle DMA contexts for sysbus devices. Patch
9e11908f12 was later merged to fix OHCI. This is the,
equivalent fix for sysbus EHCI.

Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-29 08:04:13 +01:00
Stefan Hajnoczi c128d6a6d7 usb: fail usbdevice_create() when there is no USB bus
Report an error instead of segfaulting when attaching a USB device to a
machine with no USB busses:

  $ qemu-system-arm -machine vexpress-a9 \
      -sd Fedora-17-armhfp-vexpress-mmcblk0.img \
      -kernel vmlinuz-3.4.2-3.fc17.armv7hl \
      -initrd initramfs-3.4.2-3.fc17.armv7hl.img \
      -usbdevice disk:format=raw:test.img

Note that the vexpress-a9 machine does not have a USB host controller.

Reported-by: David Abdurachmanov <David.Abdurachmanov@cern.ch>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-29 08:04:13 +01:00
Gerd Hoffmann 6c2d1c32d0 usb: tag usb host adapters as not hotpluggable.
Hotplugging them simply doesn't work, so tag them accordingly to
avoid users trying and then crashing qemu.

For xhci there is nothing fundamental which prevents hotplug from
working, we'll "only" need a exit() function which cleans up
everything properly.  That isn't for 1.3 though.

For ehci+uhci+ohci hotplug can't be supported until qemu gains the
capability to hotplug multifunction pci devices.

https://bugzilla.redhat.com/show_bug.cgi?id=879096

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-29 08:04:13 +01:00
Yonit Halperin fa98efe932 qxl: reload memslots after migration, when qxl is in UNDEFINED mode
The devram memslot stays active when qxl enters UNDEFINED mode (i.e, no
primary surface). If migration has occurred while the device is in
UNDEFINED stae, the memslots have to be reloaded at the destination.

Fixes rhbz#874574

Signed-off-by: Yonit Halperin <yhalperi@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-29 07:58:45 +01:00
Anthony Liguori e6451fd372 Merge remote-tracking branch 'bonzini/scsi-next' into staging
* bonzini/scsi-next:
  virtio-scsi: Fix subtle (guest) endian bug
  virtio-scsi: Fix some endian bugs with virtio-scsi
  iscsi: do not assume device is zero initialized
  iscsi: fix deadlock during login
  iscsi: fix segfault in url parsing

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-28 13:19:24 -06:00
Anthony Liguori 0a6b2ac0cf Merge remote-tracking branch 'agraf/s390-for-upstream-1.3' into staging
* agraf/s390-for-upstream-1.3:
  sclp: Fix uninitialized var in handle_write_event_buf().
  s390: Fix ram_size updating in machine init

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-28 13:19:16 -06:00
Anthony Liguori 7e68494b0b Merge remote-tracking branch 'agraf/ppc-for-upstream-1.3' into staging
* agraf/ppc-for-upstream-1.3:
  fbdev: fix pixman compile on old pixman
  vl.c: Fix broken -usb option
  pseries: Fix bug in PCI MSI allocation
  kvm: fix incorrect length in a loop over kvm dirty pages map
  PPC: Fix missing TRACE exception
  hw/ide/macio: Fix segfault caused by NULL DMAContext*

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-28 13:19:06 -06:00
David Gibson 863d1050c9 virtio-scsi: Fix subtle (guest) endian bug
The virtio-scsi config space is, by specification, in guest endian (which
is ill-defined, but there you go).  In virtio_scsi_get_config() we set up
all the fields in there, using stl_raw().  Which is a problem for the
max_channel and max_target fields, which are 16-bit, not 32-bit.  For
little-endian targets we get away with it by accident, since the first
two bytes will still be correct, and the extra two bytes written (with
zeroes) will be overwritten correctly by the next store.

But for big-endian guests, this means the max_target field ends up as zero,
which means the guest will only recognize a single disk on the virtio-scsi
bus.  This patch fixes the problem.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul 'Rusty' Russell <rusty@rustcorp.com.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-11-28 12:52:00 +01:00
David Gibson 474ee55a18 virtio-scsi: Fix some endian bugs with virtio-scsi
The virtio-scsi specification does not specify the correct endianness for
fields in the request structure.  It's therefore best to assume that it is
"guest native" endian since that's the (stupid and poorly defined) norm in
virtio.

However, the qemu device for virtio-scsi has no byteswaps at all, and so
will break if the guest has different endianness from the host.  This patch
fixes it by adding tswap() calls for the sense_len and resid fields in
the request structure.  In theory status_qualifier needs swaps as well,
but that field is never actually touched.  The tag field is a uint64_t, but
since its value is completely arbitrary, it might as well be uint8_t[8]
and so it does not need swapping.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul 'Rusty' Russell <rusty@rustcorp.com.au>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2012-11-28 12:52:00 +01:00
Alex Horn 02c6ccc6dd rtc: Only call rtc_set_cmos when Register B SET flag is disabled.
This bug occurs when the SET flag of Register B is enabled. When an RTC
data register (i.e. any of the ten time/calender CMOS bytes) is set, the
data is (as expected) correctly stored in the cmos_data array. However,
since the SET flag is enabled, the function rtc_set_time is not invoked.
As a result, the field base_rtc in RTCState remains uninitialized. This
causes a problem on subsequent writes which can end up overwriting data.
To see this, consider writing data to Register A after having written
data to any of the RTC data registers; the following figure illustrates
the call stack for the Register A write operation:

 +- cmos_io_port_write
 +-- check_update_timer
 +---- get_next_alarm
 +------ rtc_update_time

In rtc_update_time, get_guest_rtc calculates the wrong time and
overwrites the previously written RTC data register values.

Signed-off-by: Alex Horn <alex.horn@cs.ox.ac.uk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-27 11:04:33 -06:00
Paolo Bonzini 03a36f17d7 virtio-rng: do not use g_assert_cmpint
g_assert_cmpint is not available on glib 2.12, which is the minimum
version required to build QEMU (we only require 2.16 to run tests,
since that is the first version including GTester).  Do not use it
in hardware models, use a normal assertion instead.

This fixes the buildbot failure for default_x86_64_rhel5.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-27 08:51:07 -06:00
Amit Shah 42015c9acb virtio-rng: fix typos, comments
Fix typos, whitespace and update comments to match current
implementation.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 14:26:37 -06:00
Amit Shah 8cc6774354 virtio-rng: disable timer on device removal
Disable the rate-limit timer on device remove (e.g. hot-unplug).

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 14:26:37 -06:00
Amit Shah 4621c1768e virtio-rng: remove extra request for entropy
If we got fewer bytes from the backend than requested, don't poke the
backend for more bytes; the guest will ask for more (or if the guest has
already asked for more, the backend knows about it via handle_input()).

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 14:26:37 -06:00
Amit Shah 1441703965 virtio-rng: use virtqueue_get_avail_bytes, fix migration
Popping an elem from the vq just to find out its length causes problems
with save/load later on.  Use the new virtqueue_get_avail_bytes()
function instead, saves us the complexity in the migration code, as well
as makes the migration endian-safe.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 14:26:37 -06:00
Andreas Färber 25d87288b1 i8259: Fix PIC_COMMON() macro
It used a wrong struct type name since its introduction in
8f04ee0882 (isa: pic: convert to QEMU
Object Model), apparently it is unused so far.

Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 14:25:42 -06:00
Paolo Bonzini 64b625f4b2 qdev: simplify (de)allocation of buses
All conditional deallocation can now be done with object_delete.
Remove the @qom_allocated and @glib_allocated fields; replace the latter
with a direct assignment of the @free function pointer.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 13:41:00 -06:00
Paolo Bonzini 667d22d1ae qdev: move bus removal to object_unparent
Add an ObjectClass method that is done at object_unparent time.  It
should remove any backlinks to the object in the composition tree,
so that object_delete will be able to drop the last reference and
free the object.

Use it for qdev buses.

Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 13:41:00 -06:00
Cornelia Huck 773de5c786 sclp: Fix uninitialized var in handle_write_event_buf().
Some gcc versions rightly complain about a possibly unitialized rc,
so let's move setting it before the QTAILQ_FOREACH().

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-11-26 20:16:26 +01:00
Heinz Graalfs 8c7c3c58e3 s390: Fix ram_size updating in machine init
The global variable 'ram_size' is hidden by the local variable
declaration in s390_init(). Since we want to update the global
ram size in certain cases we must not use a local ram_size
variable.
- This fixes booting with unusual ram sizes like -m 67001
- This changes behaviour back to the situation before commit
  5f072e1f30
  (create struct for machine initialization arguments)

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-11-26 20:16:26 +01:00
Alexey Kardashevskiy 70c68cf638 pseries: Fix bug in PCI MSI allocation
In one of the recent reworks to the XICS code, a bug was introduced where
we use the wrong sense and allocate level interrupts instead of message
interrupts for PCI MSIs.  This patch fixes it.

Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-11-26 19:53:26 +01:00
Peter Maydell d688e5239a hw/ide/macio: Fix segfault caused by NULL DMAContext*
Pass qemu_sglist_init the global dma_context_memory rather than a NULL
pointer; this fixes a segfault in dma_memory_map() when the guest
starts using DMA.

Reported-by: Amadeusz Sławiński <amade@asmblr.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
2012-11-26 19:53:26 +01:00
Paolo Bonzini b5007bcc97 hmp: do not crash on invalid SCSI hotplug
Commit 0d93692 (qdev: Convert busses to QEMU Object Model, 2012-05-02)
removed a check on the type of the bus where a SCSI disk is hotplugged.
However, hot-plugging to the wrong kind of device now causes a crash
due to either a NULL pointer dereference (avoided by the previous patch)
or a failed QOM cast.

Instead, in this case we need to use object_dynamic_cast and check for
the result, similar to what was done before that commit.

Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:38:54 -06:00
Jan Kiszka 21022c92dc q35: Add kvmclock support
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:37 -06:00
Jan Kiszka 243b95111c q35: Fix non-PCI IRQ processing in ich9_lpc_update_apic
Avoid passing a non-PCI IRQ to ich9_gsi_to_pirq. It's wrong and triggers
an assertion.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:37 -06:00
Jan Kiszka 21bcfdd9a4 q35: Suppress SMM BIOS initialization under KVM
Same as for i44fx: KVM does not support SMM yet. Signal it initialized
to Seabios to avoid failures.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:37 -06:00
Jason Baron a1c9304683 ich9: Add i82801b11 dmi-to-pci bridge
Add the dmi-to-pci i82801b11 bridge chip. This is the pci bridge chip
that q35 uses on its host bus for PCI bus arbitration.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:37 -06:00
Isaku Yamahata df2d8b3ed4 q35: Introduce q35 pc based chipset emulator
pc q35 based chipset emulator to support pci express natively. Based on
Anthony Liguori's suggestion, the machine name is 'q35-next', with an alias
of 'q35'. At this point, there are no compatibility guarantees. When the
chipset stabilizes more, we will begin to version the machine names.

Major features which still need to be added:

-Migration support (mostly around ahci)
-ACPI hotplug support (pcie hotplug support is working)
-Passthrough support

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:36 -06:00
Jason Baron 678e7b94b1 ich9: Add smbus
Add support for the ich9 smbus chip.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:36 -06:00
Jason Baron 4d00636e97 ich9: Add the lpc chip
Add support for the ICH9 LPC chip.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:35 -06:00
Jason Baron e516572fde ich9: Add acpi support and definitions
Lay the groundwork for subsequent ich9 support.

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:35 -06:00
Isaku Yamahata 410edd922d pc/piix_pci: factor out smram/pam logic
Factor out smram/pam logic for use by other chipsets, namely q35
at this point.

Note: Should be factored out into a generic North Bridge Class.

[jbaron@redhat.com: changes for updated memory API]
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:35 -06:00
Jason Baron d8ee03843f pc_piix: Move kvm irq routing functions out of pc_piix.c
Rename: kvm_piix3_gsi_handlei() -> kvm_pc_gsi_handler()
        kvm_piix3_setup_irq_routing() -> kvm_pc_setup_irq_routing()

This is in preparation for other users, namely q35 at this time.

Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:35 -06:00
Jason Baron a39e356458 pc: Move ioapic_init() from pc_piix.c to pc.c
Move ioapic_init() from pc_piix.c to pc.c, to make it a common function.
Rename ioapic_init() -> ioapic_init_gsi().
Move to pc.h so q35 can use them as well.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:35 -06:00
Isaku Yamahata 9011a1a7bb pc, pc_piix: split out pc nic initialization
Factor out pc nic initialization.
This simplifies the pc initialization and will reduce the code
duplication of q35 pc initialization.

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 09:35:35 -06:00
Anthony Liguori 95a6e48d77 Merge remote-tracking branch 'kraxel/usb.72' into staging
* kraxel/usb.72:
  usb-redir: Don't handle interrupt output packets async
  usb-redir: Split usb_handle_interrupt_data into separate in/out functions
  usb-smartcard-reader: Properly NAK interrupt eps when we've no events
  usb-bt: Return NAK instead of STALL when interrupt ep has no data
  uhci: Fix double unlink
  uhci: Don't allow the guest to set port-enabled when there is no dev connected
  uhci: Add a completions_only flag for async completions

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-11-26 08:19:20 -06:00
Hans de Goede 723aedd532 usb-redir: Don't handle interrupt output packets async
Instead report them as successfully completed directly on submission, this
has 2 advantages:

1) This matches the timing of interrupt output packets on real hardware,
with the previous async handling, if an ep has an interval of say 500 ms,
then there would be 500+ ms between the submission and the guest seeing the
completion, as we wont do the write back until the qh gets polled again. And
in the mean time the guest may very well have timed out, as the guest can
reasonable expect a much quicker completion.

2) This fixes interrupt output packets potentially getting send twice
surrounding a migration. As we delay the writeback to guest memory until
the qh gets polled again, there is a window between completion and writeback
where migration can happen, in this case the destination will not know
about the completion, and it will execute the packet *again*

But it does also come with a disadvantage:

1) If the actual interrupt out to the real usb device fails, there is no
way to report this back to the guest.

This patch assumes however that interrupt outs in practice never fail, as
they are only used by specialized drivers, which are unlikely to issue illegal
requests (unlike general class drivers which often issue requests which some
devices don't implement). And that thus the advantages outway the disadvantage.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-21 14:55:54 +01:00
Hans de Goede 234e810cce usb-redir: Split usb_handle_interrupt_data into separate in/out functions
No functional changes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-21 14:55:54 +01:00
Hans de Goede c4020746ff usb-smartcard-reader: Properly NAK interrupt eps when we've no events
When we've no data to return from the interrupt endpoint, return NAK rather
then a 0 length packet.

CC: Alon Levy <alevy@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-21 14:55:54 +01:00
Hans de Goede 33c1a6856f usb-bt: Return NAK instead of STALL when interrupt ep has no data
I noticed this while making all devices with interrupt endpoints properly
do wakeup. While at it also add wakeup support.

Note that I've not tested this, but returning STALL for an interrupt ep
which has no data is cleary the wrong thing to do.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-21 14:55:54 +01:00
Hans de Goede 71d2c9cf65 uhci: Fix double unlink
uhci_async_cancel() already does a uhci_async_unlink().

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-21 14:55:54 +01:00
Hans de Goede 1cbdde909f uhci: Don't allow the guest to set port-enabled when there is no dev connected
It is possible for device disconnect and the guest trying to reset the port
(because of USB xact errors prior to the disconnect getting signaled) to race,
when we hit this race, the guest will write the port-control register with its
pre-disconnect value + the reset bit set, after which we have a disconnected
device with its port-enabled bit set in its port-control register, which
is no good :)

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2012-11-21 14:55:54 +01:00