[Qemu-devel] [PULL v3 00/23] Integrate DMA into the memory API

[Avi Kivity]

Most of the work on the memory API focused on memory access targets - the 
memory regions
and how they are composed into an address space.  This patchset tackles the 
initator
side of the question - how to originate accesses.

The AddressSpace object, is exported to users and becomes the representation of 
an
initiator.  Each address space describes the paths from some point in the system
(a device or cpu) to the devices reachable from that initiator.

As an example, the API is used to support PCI_COMMAND_MASTER bit.

Changes from v2:
 - fix series numbering
 - drop MEMORY_LISTENER_DEFAULT_OPS, use traditional if (x->op) { x->op(); } 
instead

Changes from v1:
 - fix typo on commit log for patch 7
 - add address space destruction (resolved FIXME)

Two FIXMEs are introduced for the PCI bus master address space, however they're 
only
exposed by this patch set; the incorrect behaviour is preexisting.  They will 
be resolved
in a future patchset.

Available as a git tree in:

  git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git memory/dma

Avi Kivity (23):
  memory: rename 'exec-obsolete.h'
  vhost: use MemoryListener filtering to only monitor RAM address space
  kvm: use separate MemoryListeners for memory and I/O
  xen_pt: use separate MemoryListeners for memory and I/O
  memory: prepare AddressSpace for exporting
  memory: export AddressSpace
  memory: maintain a list of address spaces
  memory: provide defaults for MemoryListener operations
  memory: drop no-op MemoryListener callbacks
  vfio: drop no-op MemoryListener callbacks
  xen_pt: drop no-op MemoryListener callbacks
  kvm: drop no-op MemoryListener callbacks
  xen: drop no-op MemoryListener callbacks
  memory: manage coalesced mmio via a MemoryListener
  memory: move address_space_memory and address_space_io out of memory
    core
  memory: move tcg flush into a tcg memory listener
  memory: use AddressSpace for MemoryListener filtering
  s390: avoid reaching into memory core internals
  memory: per-AddressSpace dispatch
  dma: make dma access its own address space
  memory: add address_space_destroy()
  pci: give each device its own address space
  pci: honor PCI_COMMAND_MASTER

 cputlb.c                             |   6 +-
 cputlb.h                             |   3 +-
 dma-helpers.c                        |  25 ++-
 dma.h                                |  17 +-
 exec-memory.h                        |   7 +-
 exec.c                               | 318 +++++++++++++++--------------------
 hw/Makefile.objs                     |   5 +-
 hw/pci.c                             |  25 ++-
 hw/pci.h                             |   2 +
 hw/spapr_iommu.c                     |   3 +-
 hw/vfio_pci.c                        |  32 +---
 hw/vhost.c                           |   5 +-
 hw/xen_pt.c                          |  47 +++---
 hw/xen_pt.h                          |   1 +
 kvm-all.c                            | 105 +++++-------
 kvm-stub.c                           |  10 --
 kvm.h                                |   2 -
 exec-obsolete.h => memory-internal.h |  31 +++-
 memory.c                             | 173 +++++++++++--------
 memory.h                             | 107 +++++++++++-
 target-s390x/misc_helper.c           |   3 +-
 xen-all.c                            |  44 +----
 22 files changed, 488 insertions(+), 483 deletions(-)
 rename exec-obsolete.h => memory-internal.h (86%)

-- 
1.7.12