Avi Kivity <a...@redhat.com> writes:
> 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
This conflicts with a recent pull from Stefano in xen-all.c. The
difference doesn't look that awful but since I don't have a xen test
setup, I'm not confident in resolving it myself.
Can you rebase and fixup?
Regards,
Anthony Liguori
>
> 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
