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2014-07-08s390x/css: reflect cpa in scswCornelia Huck
We neglected to update the the channel-program-address field of the scsw after completion of the start or the halt function: Fortunately, Linux didn't miss it so far. Let's update it for the cases where the cpa is expected to be valid; in some cases, the cpa is 'unpredictable', so we leave it untouched. Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-07-06virtio: move common virtio properties to bus class deviceMing Lei
The two common virtio features can be defined per bus, so move all into bus class device to make code more clean. As discussed with cornelia, s390-virtio-blk doesn't support the two features at all, so keep s390-virtio as it. Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> #for s390 ccw Suggested-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Ming Lei <ming.lei@canonical.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> MST: rebase and resolve conflicts
2014-07-01virtio-blk: replace x-iothread with iothread link propertyStefan Hajnoczi
Up until now -device virtio-blk-pci,x-iothread=<id> was used to assign an IOThread. This was a temporary solution while we cleaned up QOM link properties. This patch switches over to a QOM link property since it is now possible to restrict the setter to unrealized instances and automatically unref the IOThread when the virtio-blk-pci device is freed. Since the "iothread" property is a QOM property and not a qdev property, we must alias it explicitly for virtio-blk-pci, as well as CCW and s390-virtio. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-07-01virtio: fix virtio-blk child refcount in transportsStefan Hajnoczi
object_initialize() leaves the object with a refcount of 1. object_property_add_child() adds its own reference which is dropped again when the property is deleted. The upshot of this is that we always have a refcount >= 1. Upon hot unplug the virtio-blk child is not finalized! Drop our reference after the child property has been added to the parent. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-07-01virtio-blk: use aliases instead of duplicate qdev propertiesStefan Hajnoczi
virtio-blk-pci, virtio-blk-s390, and virtio-blk-ccw all duplicate the qdev properties of their VirtIOBlock child. This approach does not work well with string or pointer properties since we must be careful about leaking or double-freeing them. Use the QOM alias property to forward property accesses to the VirtIOBlock child. This way no duplication is necessary. Remember to stop calling virtio_blk_set_conf() so that we don't clobber the values already set on the VirtIOBlock instance. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-07-01virtio-blk: move x-data-plane qdev property to virtio-blk.hStefan Hajnoczi
Move the x-data-plane property. Originally it was outside since not every transport may wish to support dataplane. But that makes little sense when we have a dedicated CONFIG_VIRTIO_BLK_DATA_PLANE ifdef already. This move makes it easier to switch to property aliases in the next patch. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
2014-06-10s390x: cleanup interrupt injectionCornelia Huck
Remove the need for a cpu to inject a floating interrupt on kvm. Acked-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-10s390x: consolidate floating interruptsCornelia Huck
Move the injection code for all floating interrupts to interrupt.c and add a comment. Also get rid of the #ifdef CONFIG_KVM for the service interrupt. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-10s390/virtio-ccw: migration supportJens Freimann
This patch adds live migration support for virtio-ccw devices. It's not done with vmstate because virtio itself is not yet ported to vmstate either. Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-06-10s390x/css: handle emw correctly for tschCornelia Huck
We should not try to store the emw portion of the irb if extended measurements are not applicable. In particular, we should not surprise the guest by storing a larger irb if it did not enable extended measurements. Cc: qemu-stable@nongnu.org Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com> Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-05-28machine: Conversion of QEMUMachineInitArgs to MachineStateMarcel Apfelbaum
Total removal of QEMUMachineInitArgs struct. QEMUMachineInitArgs's fields are copied into MachineState. Removed duplicated fields from MachineState. All the other changes are only mechanical refactoring, no semantic changes. Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> (s390) Reviewed-by: Michael S. Tsirkin <mst@redhat.com> (PC) [AF: Renamed ms -> machine, use MACHINE_GET_CLASS()] Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-05-20s390x/virtio-ccw: wire up irq routing and irqfdsCornelia Huck
Make use of the new s390 adapter irq routing support to enable real in-kernel irqfds for virtio-ccw with adapter interrupts. Note that s390 doesn't provide the common KVM_CAP_IRQCHIP capability, but rather needs KVM_CAP_S390_IRQCHIP to be enabled. This is to ensure backward compatibility. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-05-20s390x/virtio-ccw: reference-counted indicatorsCornelia Huck
Make code using the same indicators point to a single allocated structure that is freed when the last user goes away. This will be used by the irqfd code to unmap addresses after the last user is gone. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-05-20s390x: add I/O adapter registrationCornelia Huck
Register an I/O adapter interrupt source for when virtio-ccw devices start using adapter interrupts. Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-05-14savevm: Remove all the unneeded version_minimum_id_old (rest)Juan Quintela
After previous Peter patch, they are redundant. This way we don't assign them except when needed. Once there, there were lots of case where the ".fields" indentation was wrong: .fields = (VMStateField []) { and .fields = (VMStateField []) { Change all the combinations to: .fields = (VMStateField[]){ The biggest problem (appart from aesthetics) was that checkpatch complained when we copy&pasted the code from one place to another. Signed-off-by: Juan Quintela <quintela@redhat.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
2014-05-07hw/s390x: Add missing 'static' attributeStefan Weil
Signed-off-by: Stefan Weil <sw@weilnetz.de> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2014-05-07s390x/css: Don't save orb in subchannel.Cornelia Huck
Current css code saves the operation request block (orb) in the subchannel structure for later consumption by the start function handler. This might make sense for asynchronous execution of the start function (which qemu doesn't support), but not in our case; it would even be wrong since orb contains a reference to a local variable in the base ssch handler. Let's just pass the orb through the start function call chain for ssch; for rsch, we can pass NULL as the backend function does not use any information passed via the orb there. Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-03-19qom: Add check() argument to object_property_add_link()Stefan Hajnoczi
There are currently three types of object_property_add_link() callers: 1. The link property may be set at any time. 2. The link property of a DeviceState instance may only be set before realize. 3. The link property may never be set, it is read-only. Something similar can already be achieved with object_property_add_str()'s set() argument. Follow its example and add a check() argument to object_property_add_link(). Also provide default check() functions for case #1 and #2. Case #3 is covered by passing a NULL function pointer. Cc: Peter Crosthwaite <peter.crosthwaite@petalogix.com> Cc: Alexander Graf <agraf@suse.de> Cc: Anthony Liguori <aliguori@amazon.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> [AF: Tweaked documentation comment] Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-19qom: Make QOM link property unref optionalStefan Hajnoczi
Some object_property_add_link() callers expect property deletion to unref the link property object. Other callers expect to manage the refcount themselves. The former are currently broken and therefore leak the link property object. This patch adds a flags argument to object_property_add_link() so the caller can specify which refcount behavior they require. The new OBJ_PROP_LINK_UNREF_ON_RELEASE flag causes the link pointer to be unreferenced when the property is deleted. This fixes refcount leaks in qdev.c, xilinx_axidma.c, xilinx_axienet.c, s390-virtio-bus.c, virtio-pci.c, virtio-rng.c, and ui/console.c. Rationale for refcount behavior: * hw/core/qdev.c - bus children are explicitly unreferenced, don't interfere - parent_bus is essentially a read-only property that doesn't hold a refcount, don't unref - hotplug_handler is leaked, do unref * hw/dma/xilinx_axidma.c - rx stream "dma" links are set using set_link, therefore they need unref - tx streams are set using set_link, therefore they need unref * hw/net/xilinx_axienet.c - same reasoning as hw/dma/xilinx_axidma.c * hw/pcmcia/pxa2xx.c - pxa2xx bypasses set_link and therefore does not use refcounts * hw/s390x/s390-virtio-bus.c * hw/virtio/virtio-pci.c * hw/virtio/virtio-rng.c * ui/console.c - set_link is used and there is no explicit unref, do unref Cc: Peter Crosthwaite <peter.crosthwaite@petalogix.com> Cc: Alexander Graf <agraf@suse.de> Cc: Anthony Liguori <aliguori@amazon.com> Cc: "Michael S. Tsirkin" <mst@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-17s390x/cpu hotplug: Fix memory leakChristian Borntraeger
valgrind complains about the following: ==42117== 8 bytes in 1 blocks are definitely lost in loss record 88 of 833 ==42117== at 0x4031AFE: malloc (vg_replace_malloc.c:292) ==42117== by 0x8022F855: malloc_and_trace (vl.c:2715) ==42117== by 0x4145569: g_malloc (in /usr/lib64/libglib-2.0.so.0.3400.2) ==42117== by 0x800F696D: qemu_extend_irqs (irq.c:51) ==42117== by 0x800F6AF7: qemu_allocate_irqs (irq.c:68) ==42117== by 0x8029FA4B: irq_cpu_hotplug_init (sclpcpu.c:84) ==42117== by 0x80297C79: event_realize (event-facility.c:386) ==42117== by 0x80105071: device_set_realized (qdev.c:693) [...] Right it is. Don't drop the pointer of the irq. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Jason J. Herne <jjherne@us.ibm.com>
2014-03-17s390/ipl: Fix error path on BIOS loadingChristian Borntraeger
commit 18674b26788a9e47f1157170234e32ece2044367 (elf-loader: add more return codes) enabled the elf loader to return other errors than -1. Lets also handle that case for our "BIOS" on s390. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> CC: Alexey Kardashevskiy <aik@ozlabs.ru> CC: Alexander Graf <agraf@suse.de>
2014-03-13cpu: Move exception_index field from CPU_COMMON to CPUStateAndreas Färber
Signed-off-by: Andreas Färber <afaerber@suse.de>
2014-03-07Merge remote-tracking branch 'remotes/agraf/tags/signed-ppc-for-upstream' ↵Peter Maydell
into staging Patch queue for ppc - 2014-03-05 This pull request includes: - VSX emulation support - book3s pr/hv selection - some bug fixes - qdev stable numbering - eTSEC emulation # gpg: Signature made Wed 05 Mar 2014 02:14:19 GMT using RSA key ID 03FEDC60 # gpg: Can't check signature: public key not found * remotes/agraf/tags/signed-ppc-for-upstream: (130 commits) target-ppc: spapr: e500: fix to use cpu_dt_id target-ppc: add PowerPCCPU::cpu_dt_id target-ppc: Introduce hypervisor call H_GET_TCE target-ppc: Update ppc_hash64_store_hpte to support updating in-kernel htab target-ppc: Change the hpte store API target-ppc: Fix page table lookup with kvm enabled target-ppc: Fix htab_mask calculation target-ppc: Use Additional Temporary in stqcx Case target-ppc: Fix Compiler Warnings Due to 64-Bit Constants Declared as UL PPC: sPAPR: Only use getpagesize() when we run with kvm target-ppc/translate.c: Use ULL suffix for 64 bit constants spapr-vlan: flush queue whenever can_receive can go from false to true target-ppc: Altivec 2.07: Vector Permute and Exclusive OR target-ppc: Altivec 2.07: Vector SHA Sigma Instructions target-ppc: Altivec 2.07: AES Instructions target-ppc: Altivec 2.07: Binary Coded Decimal Instructions target-ppc: Altivec 2.07: Vector Polynomial Multiply Sum target-ppc: Altivec 2.07: Vector Gather Bits by Bytes target-ppc: Altivec 2.07: Doubleword Compares target-ppc: Altivec 2.07: vbpermq Instruction ... Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2014-03-05s390x/virtio-ccw: Adapter interrupt support.Cornelia Huck
Handle the new CCW_CMD_SET_IND_ADAPTER command enabling adapter interrupts on guest request. When active, host->guest notifications will be handled via global_indicator -> queue indicators instead of queue indicators + subchannel I/O interrupt. Indicators for virtqueues may be present at an offset. Acked-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2014-03-05elf-loader: add more return codesAlexey Kardashevskiy
The existing load_elf() just returns -1 if it fails to load ELF. However it could be smarter than this and tell more about the failure such as wrong endianness or incompatible platform. This adds additional return codes for wrong architecture, wrong endianness and if the image is not ELF at all. This adds a load_elf_strerror() helper to convert return codes into string messages. This fixes handling of what load_elf() returns for s390x, other callers just check the return value for <0 and this remains unchanged. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
2014-02-27s390x/ipl: Fix crash of ELF images with arbitrary entry pointsThomas Huth
When loading S390 kernels, the current code expects an ELF file with the start address 0x10000. Other ELF files cause a segmentation fault. To avoid these crashes, we should get the start address from the ELF file instead of always using a hard-coded address. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/event-facility: exploit realize/unrealizeHeinz Graalfs
init/exit functionality of abstract SCLPEvent class is now exploiting realize/unrealize. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/event-facility: add support for live migrationHeinz Graalfs
Add support for live migration using VMStateDescription. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/event-facility: code restructureHeinz Graalfs
Code restructure in order to simplify class hierarchy - remove S390SCLPDevice abstract base class and move function pointers into new SCLPEventFacilityClass - implement SCLPEventFacility as SysBusDevice - use define constants for instance creation strings The following ascii-art shows the class structure wrt the SCLP EventFacility before (CURRENT) and after the restructure (NEW): ---- CURRENT: "s390-sclp-events-bus" +-------------------------+ | SCLPEventsBus | |-------------------------| |BusState qbus | +-------------------------+ +-------------------------+ | SCLPEventFacility | - to be replaced by new SCLPEventFacility, |-------------------------| which will be a SysBusDevice |SCLPEventsBus sbus | |DeviceState *qdev | |unsigned int receive_mask| +-------------------------+ +-------------------------+ | S390SCLPDeviceClass | - to be replaced by new SCLPEventFacilityClass |-------------------------| |DeviceClass qdev | |*(init)() | +-------------------------+ "s390-sclp-event-facility" | instance-of | V "s390-sclp-device" - this is an abstract class +-------------------------+ | S390SCLPDevice (A)| - to be replaced by new SCLPEventFacility |-------------------------| |SysBusDevice busdev | |SCLPEventFacility *ef | | | |*(sclp_command_handler)()| - these 2 go to new SCLPEventFacilityClass |*(event_pending)() | +-------------------------+ ---- NEW: "s390-sclp-events-bus" +-------------------------+ | SCLPEventsBus | |-------------------------| |BusState qbus | +-------------------------+ +-------------------------+ | SCLPEventFacilityClass | |-------------------------| |DeviceClass parent_class | | | |*(init)() | |*(command_handler)() | |*(event_pending)() | +-------------------------+ "s390-sclp-event-facility" +-------------------------+ | SCLPEventFacility | |-------------------------| |SysBusDevice parent_class| |SCLPEventsBus sbus | |unsigned int receive_mask| +-------------------------+ Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/event-facility: some renamingHeinz Graalfs
Do some renaming to shorten some identifiers and to emphasize sclp. Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/sclp: Add missing checks to SCLP handlerThomas Huth
If the 51 most significant bits of the SCCB address are zero or equal to the prefix, we should throw an specification exception, too. Also moved the check for privileged mode to sclp_service_call() to have all program checks in one place now. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/sclp: Fixed the size of sccb and code parameterThomas Huth
The pointer to the SCCB should not be limited to 32 bits only. In contrast to this, the command word parameter is only 32 bits (the upper 32 bits should be ignored). Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/eventfacility: mask out commandsChristian Borntraeger
As a followup to commit 5f04c14a10fa7f259bc0808f35a0beda49f7821e (s390-sclp: Define New SCLP Codes) we should mask the sclp command not only in base sclp, but also in the event facility. Based on an initial patch from Ralf Hoppe. Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/virtio-hcall: Specification exception for illegal subcodesThomas Huth
So far, the DIAG 500 hypervisor call was only setting -EINVAL in R2 when a guest tried to call this function with an illegal subcode. This patch now changes the behavior so that a specification exception is thrown instead, since this is the common behavior of other DIAG functions (and other CPU instructions) when being called with illegal parameters. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-27s390x/virtio-hcall: Add range check for hypervisor callThomas Huth
The handler for diag 500 did not check whether the requested function was in the supported range, so illegal values could crash QEMU in the worst case. Signed-off-by: Thomas Huth <thuth@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> CC: qemu-stable@nongnu.org
2014-02-27s390x/kvm: implement floating-interrupt controller deviceJens Freimann
This patch implements a floating-interrupt controller device (flic) which interacts with the s390 flic kvm_device. Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-02-11exec: Make stb_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make stw_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make stl_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make stq_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make lduw_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make ldq/ldub_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-02-11exec: Make ldl_*_phys input an AddressSpaceEdgar E. Iglesias
Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
2014-01-21s390-sclp: SCLP Event integrationJason J. Herne
Add an sclp event for "cpu was hot plugged". This allows Qemu to deliver an SCLP interrupt to the guest stating that the requested cpu hotplug was completed. Signed-off-by: Jason J. Herne <jjherne@us.ibm.com> Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-01-21s390-sclp: SCLP CPU InfoJason J. Herne
Implement the CPU data in SCLP "Read SCP Info". And implement "Read CPU Info" SCLP command. This data will be used by the guest to get information about hot plugged cpus. Signed-off-by: Jason J. Herne <jjherne@us.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-01-21s390-sclp: Define New SCLP CodesJason J. Herne
Define new SCLP codes to improve code readability. Signed-off-by: Jason J. Herne <jjherne@us.ibm.com> Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
2014-01-10Merge remote-tracking branch 'mst/tags/for_anthony' into stagingAnthony Liguori
acpi,pci,pc,fedora,virtio fixes and enhancements This includes some Preparatory patches for cpu hotplug for q25 and memory hotplug by Igor, tests and memory mapping change by Laszlo and pci reset cleanup by Paolo. There are also some fixes for fedora and virtio: included here since they are test blockers for me. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> # gpg: Signature made Mon 23 Dec 2013 08:07:18 AM PST using RSA key ID D28D5469 # gpg: Can't check signature: public key not found * mst/tags/for_anthony: target-arm: fix build with gcc 4.8.2 virtio: add back call to virtio_bus_device_unplugged piix: fix 32bit pci hole qdev: switch reset to post-order qdev: allow both pre- and post-order vists in qdev walking functions pci: clean up resetting of IRQs pci: do not export pci_bus_reset ACPI/DSDT-CPU: cleanup bogus comment ACPI: Q35 DSDT: fix CPU hotplug GPE0.2 handler acpi: ich9: allow guest to clear SCI rised by GPE acpi: factor out common pm_update_sci() into acpi core acpi: piix4: remove not needed GPE0 mask i440fx-test: verify firmware under 4G and 1M, both -bios and -pflash i440fx-test: generate temporary firmware blob i440fx-test: give each GTest case its own qtest i440fx-test: qtest_start() should be paired with qtest_end() hw/i386/pc_sysfw: support two flash drives pc_piix: document gigabyte_align piix: gigabyte alignment for ram Message-id: 1387815007-1272-1-git-send-email-mst@redhat.com Signed-off-by: Anthony Liguori <aliguori@amazon.com>
2013-12-23qdev: switch reset to post-orderPaolo Bonzini
Post-order is the only sensible direction for the reset signals. For example, suppose pre-order is used and the parent has some data structures that cache children state (for example a list of active requests). When the reset method is invoked on the parent, these caches could be in any state. If post-order is used, on the other hand, these will be in a known state when the reset method is invoked on the parent. This change means that it is no longer possible to block the visit of the devices, so the callback is changed to return void. This is not a problem, because PCI was returning 1 exactly in order to achieve the same ordering that this patch implements. PCI can then rely on the qdev core having sent a "reset signal" (whatever that means) to the device, and only do the PCI-specific initialization with pci_do_device_reset. MST: fixed up virtio-ccw Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2013-12-23sysbus: Set cannot_instantiate_with_device_add_yetMarkus Armbruster
device_add plugs devices into suitable bus. For "real" buses, that actually connects the device. For sysbus, the connections need to be made separately, and device_add can't do that. The device would be left unconnected, and could not possibly work. Quite a few, but not all sysbus devices already set cannot_instantiate_with_device_add_yet in their class init function. Set it in their abstract base's class init function sysbus_device_class_init(), and remove the now redundant assignments from device class init functions. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
2013-12-23qdev: Replace no_user by cannot_instantiate_with_device_add_yetMarkus Armbruster
In an ideal world, machines can be built by wiring devices together with configuration, not code. Unfortunately, that's not the world we live in right now. We still have quite a few devices that need to be wired up by code. If you try to device_add such a device, it'll fail in sometimes mysterious ways. If you're lucky, you get an unmysterious immediate crash. To protect users from such badness, DeviceClass member no_user used to make device models unavailable with -device / device_add, but that regressed in commit 18b6dad. The device model is still omitted from help, but is available anyway. Attempts to fix the regression have been rejected with the argument that the purpose of no_user isn't clear, and it's prone to misuse. This commit clarifies no_user's purpose. Anthony suggested to rename it cannot_instantiate_with_device_add_yet_due_to_internal_bugs, which I shorten somewhat to keep checkpatch happy. While there, make it bool. Every use of cannot_instantiate_with_device_add_yet gets a FIXME comment asking for rationale. The next few commits will clean them all up, either by providing a rationale, or by getting rid of the use. With that done, the regression fix is hopefully acceptable. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
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