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2019-08-16Include sysemu/hostmem.h lessMarkus Armbruster
Move the HostMemoryBackend typedef from sysemu/hostmem.h to qemu/typedefs.h. This renders a few inclusions of sysemu/hostmem.h superfluous; drop them. Cc: Eduardo Habkost <ehabkost@redhat.com> Cc: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> Message-Id: <20190812052359.30071-25-armbru@redhat.com>
2019-08-16Include hw/qdev-properties.h lessMarkus Armbruster
In my "build everything" tree, changing hw/qdev-properties.h triggers a recompile of some 2700 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). Many places including hw/qdev-properties.h (directly or via hw/qdev.h) actually need only hw/qdev-core.h. Include hw/qdev-core.h there instead. hw/qdev.h is actually pointless: all it does is include hw/qdev-core.h and hw/qdev-properties.h, which in turn includes hw/qdev-core.h. Replace the remaining uses of hw/qdev.h by hw/qdev-properties.h. While there, delete a few superfluous inclusions of hw/qdev-core.h. Touching hw/qdev-properties.h now recompiles some 1200 objects. Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: "Daniel P. Berrangé" <berrange@redhat.com> Cc: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Message-Id: <20190812052359.30071-22-armbru@redhat.com>
2019-08-16Include qemu/main-loop.h lessMarkus Armbruster
In my "build everything" tree, changing qemu/main-loop.h triggers a recompile of some 5600 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). It includes block/aio.h, which in turn includes qemu/event_notifier.h, qemu/notify.h, qemu/processor.h, qemu/qsp.h, qemu/queue.h, qemu/thread-posix.h, qemu/thread.h, qemu/timer.h, and a few more. Include qemu/main-loop.h only where it's needed. Touching it now recompiles only some 1700 objects. For block/aio.h and qemu/event_notifier.h, these numbers drop from 5600 to 2800. For the others, they shrink only slightly. Signed-off-by: Markus Armbruster <armbru@redhat.com> Message-Id: <20190812052359.30071-21-armbru@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2019-07-12virtio pmem: remove memdev null checkPankaj Gupta
Coverity reports that when we're assigning vi->size we handle the "pmem->memdev is NULL" case; but we then pass it into object_get_canonical_path(), which unconditionally dereferences it and will crash if it is NULL. If this pointer can be NULL then we need to do something else here. We are removing 'pmem->memdev' null check here as memdev will never be null in this function. Signed-off-by: Pankaj Gupta <pagupta@redhat.com> Message-Id: <20190712073554.21918-3-pagupta@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com>
2019-07-02virtio-pmem: add virtio devicePankaj Gupta
This is the implementation of virtio-pmem device. Support will require machine changes for the architectures that will support it, so it will not yet be compiled. It can be unlocked with VIRTIO_PMEM_SUPPORTED per machine and disabled globally via VIRTIO_PMEM. We cannot use the "addr" property as that is already used e.g. for virtio-pci/pci devices. And we will have e.g. virtio-pmem-pci as a proxy. So we have to choose a different one (unfortunately). "memaddr" it is. That name should ideally be used by all other virtio-* based memory devices in the future. -device virtio-pmem-pci,id=p0,bus=bux0,addr=0x01,memaddr=0x1000000... Acked-by: Markus Armbruster <armbru@redhat.com> [ QAPI bits ] Signed-off-by: Pankaj Gupta <pagupta@redhat.com> [ MemoryDevice/MemoryRegion changes, cleanups, addr property "memaddr", split up patches, unplug handler ] Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20190619094907.10131-2-pagupta@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cohuck@redhat.com>