[Qemu-devel] [PATCH v2 00/23] Memory API, batch 1

[Avi Kivity <avi@redhat.com>]

This patchset contains the core of the memory API, with one device
(usb-ohci) coverted for reference.  The API is currently implemented on
top of the old ram_addr_t/cpu_register_physical_memory() API, but the plan
is to make it standalone later.

The goals of the API are:
 - correctness: by modelling the memory hierarchy, things like the 440FX PAM
   registers and movable, overlapping PCI BARs can be modelled accurately.
 - efficiency: by maintaining an object tree describing guest memory, we
   can eventually get rid of the page descriptor array
 - security: by having more information available declaratively, we reduce
   coding errors that may be exploited by malicious guests

Also available from

  git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git
     refs/tags/memory-region-batch-1-v2

Changes from v1:
 - switched to gtk-doc
 - more copyright blurbs
 - simplified flatview_simplify()
 - use assert() instead of abort() for invariant checks
   (but keep abort() for runtime errors)
 - commit log fixups

Avi Kivity (23):
  Add memory API documentation
  Hierarchical memory region API
  memory: implement dirty tracking
  memory: merge adjacent segments of a single memory region
  Internal interfaces for memory API
  memory: abstract address space operations
  memory: rename MemoryRegion::has_ram_addr to ::terminates
  memory: late initialization of ram_addr
  memory: I/O address space support
  memory: add backward compatibility for old portio registration
  memory: add backward compatibility for old mmio registration
  memory: add ioeventfd support
  memory: separate building the final memory map into two steps
  memory: transaction API
  exec.c: initialize memory map
  ioport: register ranges by byte aligned addresses always
  pc: grab system_memory
  pc: convert pc_memory_init() to memory API
  pc: move global memory map out of pc_init1() and into its callers
  pci: pass address space to pci bus when created
  pci: add MemoryRegion based BAR management API
  sysbus: add MemoryRegion based memory management API
  usb-ohci: convert to MemoryRegion

 Makefile.target    |    1 +
 docs/memory.txt    |  172 ++++++++
 exec-memory.h      |   39 ++
 exec.c             |   19 +
 hw/apb_pci.c       |    2 +
 hw/bonito.c        |    4 +-
 hw/grackle_pci.c   |    5 +-
 hw/gt64xxx.c       |    4 +-
 hw/pc.c            |   62 ++-
 hw/pc.h            |    9 +-
 hw/pc_piix.c       |   20 +-
 hw/pci.c           |   63 +++-
 hw/pci.h           |   15 +-
 hw/pci_host.h      |    1 +
 hw/pci_internals.h |    1 +
 hw/piix_pci.c      |   13 +-
 hw/ppc4xx_pci.c    |    5 +-
 hw/ppc_mac.h       |    9 +-
 hw/ppc_newworld.c  |    5 +-
 hw/ppc_oldworld.c  |    3 +-
 hw/ppc_prep.c      |    3 +-
 hw/ppce500_pci.c   |    6 +-
 hw/prep_pci.c      |    5 +-
 hw/prep_pci.h      |    3 +-
 hw/sh_pci.c        |    4 +-
 hw/sysbus.c        |   27 ++-
 hw/sysbus.h        |    3 +
 hw/unin_pci.c      |   10 +-
 hw/usb-ohci.c      |   42 +--
 hw/versatile_pci.c |    2 +
 ioport.c           |    4 +-
 memory.c           | 1141 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 memory.h           |  469 +++++++++++++++++++++
 33 files changed, 2072 insertions(+), 99 deletions(-)
 create mode 100644 docs/memory.txt
 create mode 100644 exec-memory.h
 create mode 100644 memory.c
 create mode 100644 memory.h

-- 
1.7.5.3