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2013-01-26hw/pxa2xx_timer: Explicitly mark fallthroughsPeter Maydell
Explicitly mark the fallthroughs as intentional in the code pattern where we gradually increment an index before falling into the code to read/write that array entry: case THINGY_3: idx++; case THINGY_2: idx++; case THINGY_1: idx++; case THINGY_0: return s->thingy[idx]; This makes static analysers happy. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26hw/smc91c111: Add explicit 'return' rather than relying on fallthroughPeter Maydell
Add an explicit 'return' statement to a case in smc91c111_readb rather than relying on fallthrough to the following case's return statement, for code clarity and to placate static analysers. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26hw/pflash_cfi02.c: Mark deliberate fallthroughPeter Maydell
Mark the deliberate fallthrough where we treat the case of an attempt to read flash when it is an unknown command state as if it were a normal read. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26hw/omap_dma, hw/omap_spi: Explicitly mark fallthroughsPeter Maydell
Explicitly mark the fallthroughs as intentional in the code pattern where we gradually increment an index before falling into the code to read/write that array entry: case THINGY_3: idx++; case THINGY_2: idx++; case THINGY_1: idx++; case THINGY_0: return s->thingy[idx]; This makes static analysers happy. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26hw/omap1.c: Add fallthrough markers and breaksPeter Maydell
Explicitly mark cases where we are deliberately falling through to the following code. In one case we insert a 'break' instead of falling through to a 'break', as this seems slightly clearer. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26hw/arm_sysctl.c: Add missing 'break' statementsPeter Maydell
Add some break statements that were accidentally omitted from some cases of arm_sysctl_write(). The omission was harmless because in both cases the following case did an immediate break, but adding the breaks explicitly placates static analysers and avoids weird behaviour if the following register is ever implemented as something other than a no-op. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26build: remove extra-obj-yPaolo Bonzini
extra-obj-y is somewhat complicated to understand. Replace it with a special CONFIG_ALL symbol that is defined only at toplevel. This limits the case of directories defining more than one *-obj-y target. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-26build: remove universal-obj-yPaolo Bonzini
All of universal-obj-y, user-obj-y (right now unused) and common-obj-y can be unified into common-obj-y if we take care of defining CONFIG_SOFTMMU and CONFIG_USER_ONLY in the toplevel makefile. This is similar to how we define symbols for hardware components. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2013-01-25PPC: e500: Select MPIC v4.2 on ppce500 platformScott Wood
The compatible string is changed to fsl,mpic on all e500 platforms, to advertise the existence of BRR1. This matches what the device tree will have on real hardware. With MPIC v4.2 max_cpu can be increased from 15 to 32. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25PPC: e500: fix mpic_iack addressScott Wood
MPIC+0xa0 is IACK for the current CPU. MPIC+0x200a0 is IACK for CPU 0. This fix allows EPR to work with an SMP target. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25openpic: add basic support for MPIC v4.2Scott Wood
Besides the new value in the version register, this provides: - ILR support, which includes: - IDR becoming a pure CPU bitmap, allowing 32 CPUs - machine check output support (though other parts of QEMU need to be fixed for it to do something other than immediately reboot the guest) - dummy error interrupt support (EISR0/EIMR0 read as zero) - actually all FSL MPICs get all summary registers returning zero for now, which includes EISR0/EIMR0 Various refactoring is done to support these changes and to ease new functionality (e.g. a more flexible way of declaring regions). Just as the code was already not a full implementation of MPIC v2.0, this is not a full implementation of MPIC v4.2 -- e.g. it still has only one bank of MSIs. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25openpic: fix timer address decodingScott Wood
The timer memory range begins at 0x10f0, so that address 0x1120 shows up as 0x30, 0x1130 shows up as 0x40, etc. However, the address decoding (other than TFRR) is not adjusted for this, causing the wrong registers to be accessed. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25openpic: fix remaining issues from idr-to-destmask conversionScott Wood
openpic_update_irq() was checking idr rather than destmask, treating it as if it were a simple bitmap of cpus. Changed to use destmask. IPI delivery was removing bits directly from .idr, without calling write_IRQreg_idr so that the change could be conveyed to destmask. Changed to use destmask directly. Save/restore destmask when serializing, as due to the IPI change it cannot be reproduced from idr. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25pseries: Adjust default VIO address allocations to play better with libvirtDavid Gibson
Currently, if VIO devices for pseries don't have addresses explicitly allocated, they get automatically numbered from 0x1000. This is in the same general range that libvirt will typically assign VIO device addresses. That means that if there is a device libvirt doesn't know about, and it gets an address assigned before the libvirt assigned devices are processed, we can end up with an address conflict (qemu will abort with an error). While the real solution is to teach libvirt about the other devices, so it can correctly manage the whole allocation, this patch reduces the interim inconvenience by moving qemu allocations to a range that libvirt is less likely to conflict with. Because the guest gets the device addresses through the device tree, these addresses are truly arbitrary and can be changed without breaking guests. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25pseries: Improve handling of multiple PCI host bridgesDavid Gibson
Multiple - even many - PCI host bridges (i.e. PCI domains) are very common on real PAPR compliant hardware. For reasons related to the PAPR specified IOMMU interfaces, PCI device assignment with VFIO will generally require at least two (virtual) PHBs and possibly more depending on which devices are assigned. At the moment the qemu PAPR PCI code will not deal with this well, leaving several crucial parameters of PHBs other than the default one uninitialized. This patch reworks the code to allow this. Every PHB needs a unique BUID (Bus Unit Identifier, the id used for the PAPR PCI related interfaces) and a unique LIOBN (Logical IO Bus Number, the id used for the PAPR IOMMU related interfaces). In addition they need windows in CPU real address space to access PCI memory space, PCI IO space and MSIs. Properties are added to the PCI host bridge qdevice to allow configuration of all these. To simplify configuration of multiple PHBs for common cases, a convenience "index" property is also added. This can be set instead of the low-level properties, and will generate suitable values for the other parameters, different for each index value. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25cuda: Move ADB bus into CUDA stateAndreas Färber
Replace the global adb_bus with a CUDA-internal one, accessed using regular qdev child bus accessor. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25adb: QOM'ify ADB devicesAndreas Färber
They were not qdev'ified before. Derive ADBDevice from DeviceState and convert reset callbacks to DeviceClass::reset, ADBDevice::opaque pointer to ADBDevice subtypes for mouse and keyboard and adb_{kbd,mouse}_init() to regular qdev functions. Fixing Coding Style issues and splitting keyboard and mouse off into their own files is left for a later point in time. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25adb: QOM'ify Apple Desktop BusAndreas Färber
It was not a qbus before, turn it into a first-class bus and initialize it properly from CUDA. Leave it a global variable as long as devices are not QOM'ified yet. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25cuda: QOM'ify CUDAAndreas Färber
It was not qdev'ified before. Turn it into a SysBusDevice and embed it in MacIO. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25ide/macio: QOM'ify MacIO IDEAndreas Färber
It was not qdev'ified before. Turn it into a SysBusDevice. Embed them into the MacIO devices. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25mac_nvram: QOM'ify MacIO NVRAMAndreas Färber
It was not qdev'ified before. Turn it into a SysBusDevice and initialize it via static properties. Prepare Old World specific MacIO state and embed the NVRAM state there. Drop macio_nvram_setup_bar() in favor of sysbus_mmio_map() or direct use of Memory API. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25mac_nvram: Mark as Big EndianAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25mac_nvram: Clean up public APIAndreas Färber
The state data field is accessed in uint8_t quantities, so switch from uint32_t argument and return value to uint8_t. Fix debug format specifiers while at it. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25macio: Split MacIO in twoAndreas Färber
Let the machines create two different types. This prepares to move knowledge about sub-devices from the machines into the devices. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25macio: Delay qdev init until all fields are initializedAndreas Färber
This turns macio_bar_setup() into an implementation detail of the qdev initfn, to be removed step by step. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25macio: QOM'ify some moreAndreas Färber
Move bar MemoryRegion initialization to an instance_init. Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25ppc: Move Mac machines to hw/ppc/Andreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de> [agraf: squash in MAINTAINERS fix] Signed-off-by: Alexander Graf <agraf@suse.de>
2013-01-25ide: Add fall through annotationsKevin Wolf
Add comments to help static analysers detect that these cases are intentional, and clean up some whitespace in the environment of these comments. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Markus Armbruster <armbru@redhat.com>
2013-01-25ahci: Add migration supportJason Baron
Jason tested these patches by migrating Windows 7 and Fedora 17 guests (while under I/O) on both piix with ahci attached and on q35 (which has a built-in AHCI controller). Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Jason Baron <jbaron@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25ahci: Change data types in preparation for migrationKevin Wolf
The size of an int depends on the host, so in order to be able to migrate these fields, make them either int32_t or bool, depending on the use. Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25ahci: Remove unused AHCIDevice fieldsJason Baron
'dma_status' and 'dma_cb' are written to, but never read. Remove these fields in preparation for AHCI migration bits. Signed-off-by: Jason Baron <jbaron@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2013-01-25balloon: re-enable balloon statsLuiz Capitulino
The statistics are now available through device properties via a polling mechanism. First a client has to enable polling, then it can query available stats. Polling is enabled by setting an update interval (in seconds) to a property named guest-stats-polling-interval, like this: { "execute": "qom-set", "arguments": { "path": "/machine/peripheral-anon/device[1]", "property": "guest-stats-polling-interval", "value": 4 } } Then the available stats can be retrieved by querying the guest-stats property. The returned object is a dict containing all available stats. Example: { "execute": "qom-get", "arguments": { "path": "/machine/peripheral-anon/device[1]", "property": "guest-stats" } } { "return": { "stats": { "stat-swap-out": 0, "stat-free-memory": 844943360, "stat-minor-faults": 219028, "stat-major-faults": 235, "stat-total-memory": 1044406272, "stat-swap-in": 0 }, "last-update": 1358529861 } } Please, check the next commit for full documentation. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-01-25balloon: drop old stats code & APILuiz Capitulino
Next commit will re-enable balloon stats with a different interface, but this old code conflicts with it. Let's drop it. It's important to note that the QMP and HMP interfaces are also dropped by this commit. That shouldn't be a problem though, because: 1. All QMP fields are optional 2. This feature has always been disabled Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com>
2013-01-24Revert "serial: fix retry logic"Michael Tokarev
This reverts commit 67c5322d7000fd105a926eec44bc1765b7d70bdd: I'm not sure if the retry logic has ever worked when not using FIFO mode. I found this while writing a test case although code inspection confirms it is definitely broken. The TSR retry logic will never actually happen because it is guarded by an 'if (s->tsr_rety > 0)' but this is the only place that can ever make the variable greater than zero. That effectively makes the retry logic an 'if (0) I believe this is a typo and the intention was >= 0. Once this is fixed thoug I see double transmits with my test case. This is because in the non FIFO case, serial_xmit may get invoked while LSR.THRE is still high because the character was processed but the retransmit timer was still active. We can handle this by simply checking for LSR.THRE and returning early. It's possible that the FIFO paths also need some attention. Cc: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> Even if the previous logic was never worked, new logic breaks stuff - namely, qemu -enable-kvm -nographic -kernel /boot/vmlinuz-$(uname -r) -append console=ttyS0 -serial pty the above command will cause the virtual machine to stuck at startup using 100% CPU till one connects to the pty and sends any char to it. Note this is rather typical invocation for various headless virtual machines by libvirt. So revert this change for now, till a better solution will be found. Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-24trivial: etraxfs_eth: Eliminate checkpatch errorsGrant Likely
This is a trivial patch to harmonize the coding style on hw/etraxfs_eth.c. This is in preparation to split off the bitbang mdio code into a separate file. Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Paul Brook <paul@codesourcery.com> Cc: Edgar E. Iglesias <edgar.iglesias@gmail.com> Cc: Anthony Liguori <aliguori@us.ibm.com> Cc: Andreas Färber <afaerber@suse.de> Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2013-01-23Merge remote-tracking branch 'bonzini/scsi-next' into stagingAnthony Liguori
# By Peter Lieven (3) and others # Via Paolo Bonzini * bonzini/scsi-next: scsi: Drop useless null test in scsi_unit_attention() lsi: use qbus_reset_all to reset SCSI bus scsi: fix segfault with 0-byte disk iscsi: add support for iSCSI NOPs [v2] iscsi: partly avoid iovec linearization in iscsi_aio_writev iscsi: add iscsi_create support
2013-01-23Merge remote-tracking branch 'kraxel/usb.77' into stagingAnthony Liguori
# By Gerd Hoffmann # Via Gerd Hoffmann * kraxel/usb.77: usb: add usb-bot device (scsi bulk-only transport). ohci: add missing break Revert "usb-storage: Drop useless null test in usb_msd_handle_data()"
2013-01-22scsi: Drop useless null test in scsi_unit_attention()Markus Armbruster
req was created by scsi_req_alloc(), which initializes req->dev to a value it dereferences. req->dev isn't changed anywhere else. Therefore, req->dev can't be null. Drop the useless null test; it spooks Coverity. Signed-off-by: Markus Armbruster <armbru@redhat.com>
2013-01-22lsi: use qbus_reset_all to reset SCSI busPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-01-22scsi: fix segfault with 0-byte diskPaolo Bonzini
When a 0-sized disk is found, READ CAPACITY will return a LUN NOT READY error. However, because it returns -1 instead of zero, the HBA will call scsi_req_continue. This will typically cause a segmentation fault or an assertion failure. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2013-01-22usb: add usb-bot device (scsi bulk-only transport).Gerd Hoffmann
Basically the same as usb-storage, but without automatic scsi device setup. Also features support for up to 16 LUNs. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-01-22ohci: add missing breakGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-01-22qxl: change rom size to 8192Alon Levy
This is a simpler solution to 869981, where migration breaks since qxl's rom bar size has changed. Instead of ignoring fields in QXLRom, which is what has actually changed, we remove some of the modes, a mechanism already accounted for by the guest. The modes left allow for portrait and landscape only modes, corresponding to orientations 0 and 1. Orientations 2 and 3 are dropped. Added assert so that rom size will fit the future QXLRom increases via spice-protocol changes. This patch has been tested with 6.1.0.10015. With the newer 6.1.0.10016 there are problems with both "(flipped)" modes prior to the patch, and the patch loses the ability to set "Portrait" modes. But this is a separate bug to be fixed in the driver, and besides the patch doesn't affect the new arbitrary mode setting functionality. Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-01-22Revert "usb-storage: Drop useless null test in usb_msd_handle_data()"Gerd Hoffmann
This reverts commit a1cbfd554e11bb8af38c2f3e1f1574bf4c563cd2. Test isn't useless. scsi_req_enqueue() may finish the request (will actually happen for requests which don't trigger any I/O such as INQUIRY), then call usb_msd_command_complete() which in turn will set s->req to NULL after unref'ing it. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-01-22qxl: stop using non revision 4 rom fields for revision < 4Alon Levy
Signed-off-by: Alon Levy <alevy@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2013-01-21sysbus: Drop sysbus_from_qdev() cast macroAndreas Färber
Replace by SYS_BUS_DEVICE() QOM cast macro using a scripted conversion. Avoids the old macro creeping into new code. Resolve a Coding Style warning in openpic code. Signed-off-by: Andreas Färber <afaerber@suse.de> Cc: Anthony Liguori <anthony@codemonkey.ws> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-21virtio-s390-device: create a virtio-s390-bus during init.KONRAD Frederic
A virtio-s390-bus is created during the init. So one VirtIODevice can be connected on the virtio-s390-device through this bus. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-21virtio-s390-bus: add virtio-s390-bus.KONRAD Frederic
This add the virtio-s390-bus which extends virtio-bus. So one VirtIODevice can be connected on this bus. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-21virtio-pci: refactor virtio-pci device.KONRAD Frederic
Create the virtio-pci device which is abstract. This transport device will create a virtio-pci-bus, so one VirtIODevice can be connected. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2013-01-21virtio-pci-bus: introduce virtio-pci-bus.KONRAD Frederic
Introduce virtio-pci-bus, which extends virtio-bus. It is used with virtio-pci transport device. Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>