4 Commits

Author	SHA1	Message	Date
Stefan Hajnoczi	9154b02c53	dataplane: sync virtio.c and vring.c virtqueue state ... Load the virtio.c state into vring.c when we start dataplane mode and vice versa when stopping dataplane mode. This patch makes it possible to start and stop dataplane any time while the guest is running. This will eventually allow us to go back to QEMU main loop for bdrv_drain_all() and live migration. In the meantime, this patch makes the dataplane lifecycle more robust but should make no visible difference. It may be useful in the virtio-net dataplane effort. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>	2013-07-19 12:29:21 +08:00
Paolo Bonzini	dfde4e6e1a	memory: add ref/unref calls ... Add ref/unref calls at the following places: - places where memory regions are stashed by a listener and used outside the BQL (including in Xen or KVM). - memory_region_find callsites - creation of aliases and containers (only the aliased/contained region gets a reference to avoid loops) - around calls to del_subregion/add_subregion, where the region could disappear after the first call Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2013-07-04 17:42:45 +02:00
Paolo Bonzini	052e87b073	memory: make section size a 128-bit integer ... So far, the size of all regions passed to listeners could fit in 64 bits, because artificial regions (containers and aliases) are eliminated by the memory core, leaving only device regions which have reasonable sizes An IOMMU however cannot be eliminated by the memory core, and may have an artificial size, hence we may need 65 bits to represent its size. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2013-06-20 16:32:47 +02:00
Paolo Bonzini	6e7907468f	hw: move virtio devices to hw/ subdirectories ... Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2013-04-08 18:13:12 +02:00