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Re: [Qemu-devel] [RFC v1 00/22] Integrate DMA into the memory API
From: |
Anthony Liguori |
Subject: |
Re: [Qemu-devel] [RFC v1 00/22] Integrate DMA into the memory API |
Date: |
Thu, 04 Oct 2012 09:16:59 -0500 |
User-agent: |
Notmuch/0.13.2+93~ged93d79 (http://notmuchmail.org) Emacs/23.3.1 (x86_64-pc-linux-gnu) |
Paolo Bonzini <address@hidden> writes:
> Il 03/10/2012 18:03, Avi Kivity ha scritto:
>> 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.
>
> Very nice, IMHO patches 1-18 should get in soon. They are a useful
> cleanup on their own.
Yup, other than a few minor cosmetics, the series is a very nice
cleanup.
I think this probably gets us fairly close to being able to write unit
tests for the memory layer too which is really nice.
Regards,
Anthony Liguori
>
> Paolo
>
>> Avi Kivity (22):
>> 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: use new MEMORY_LISTENER_DEFAULT_OPS
>> vfio: use new MEMORY_LISTENER_DEFAULT_OPS
>> xen_pt: use new MEMORY_LISTENER_DEFAULT_OPS
>> kvm: use new MEMORY_LISTENER_DEFAULT_OPS
>> xen: use new MEMORY_LISTENER_DEFAULT_OPS
>> 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
>> 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 | 312
>> ++++++++++++++---------------------
>> hw/Makefile.objs | 5 +-
>> hw/pci.c | 19 ++-
>> hw/pci.h | 2 +
>> hw/spapr_iommu.c | 3 +-
>> hw/vfio_pci.c | 33 +---
>> hw/vhost.c | 5 +-
>> hw/xen_pt.c | 49 +++---
>> hw/xen_pt.h | 1 +
>> kvm-all.c | 107 +++++-------
>> kvm-stub.c | 10 --
>> kvm.h | 2 -
>> exec-obsolete.h => memory-internal.h | 30 +++-
>> memory.c | 158 +++++++++++-------
>> memory.h | 122 +++++++++++++-
>> target-s390x/misc_helper.c | 2 +-
>> xen-all.c | 45 +----
>> 22 files changed, 487 insertions(+), 476 deletions(-)
>> rename exec-obsolete.h => memory-internal.h (87%)
>>
[Qemu-devel] [RFC v1 18/22] s390: avoid reaching into memory core internals, Avi Kivity, 2012/10/03
Re: [Qemu-devel] [RFC v1 00/22] Integrate DMA into the memory API, Blue Swirl, 2012/10/03
Re: [Qemu-devel] [RFC v1 00/22] Integrate DMA into the memory API, Avi Kivity, 2012/10/04
Re: [Qemu-devel] [RFC v1 00/22] Integrate DMA into the memory API, Paolo Bonzini, 2012/10/04
- Re: [Qemu-devel] [RFC v1 00/22] Integrate DMA into the memory API,
Anthony Liguori <=