[Qemu-devel] [PULL v2] Memory core space reduction

[Qemu-devel] [PULL v2] Memory core space reduction

[Avi Kivity]

This is the current memory queue (posted as two separate series before
my vacation).  When applied, the overhead of 16 bytes/page is reduced to
basically nil.

Please pull from:

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

v2: fix memory corruption in first patch

----------------------------------------------------------------
Avi Kivity (30):
      ioport: change portio_list not to use memory_region_set_offset()
      memory: remove memory_region_set_offset()
      memory: add shorthand for invoking a callback on all listeners
      memory: switch memory listeners to a QTAILQ
      memory: code motion: move MEMORY_LISTENER_CALL()
      memory: move ioeventfd ops to MemoryListener
      memory: add a readonly attribute to MemoryRegionSection
      memory: don't pass ->readable attribute to
cpu_register_physical_memory_log
      memory: use a MemoryListener for core memory map updates too
      memory: drop AddressSpaceOps
      memory: allow MemoryListeners to observe a specific address space
      xen: ignore I/O memory regions
      memory: split memory listener for the two address spaces
      memory: support stateless memory listeners
      memory: change memory registration to rebuild the memory map on
each change
      memory: remove first level of l1_phys_map
      memory: unify phys_map last level with intermediate levels
      memory: store MemoryRegionSection pointers in phys_map
      memory: compress phys_map node pointers to 16 bits
      memory: fix RAM subpages in newly initialized pages
      memory: unify the two branches of cpu_register_physical_memory_log()
      memory: move tlb flush to MemoryListener commit callback
      memory: make phys_page_find() return a MemoryRegionSection
      memory: give phys_page_find() its own tree search loop
      memory: simplify multipage/subpage registration
      memory: replace phys_page_find_alloc() with phys_page_set()
      memory: switch phys_page_set() to a recursive implementation
      memory: change phys_page_set() to set multiple pages
      memory: unify PhysPageEntry::node and ::leaf
      memory: allow phys_map tree paths to terminate early

 exec-obsolete.h |    5 +-
 exec.c          |  875
++++++++++++++++++++++++++++++++++++-------------------
 hw/vhost.c      |   33 ++-
 ioport.c        |   28 ++-
 ioport.h        |    1 +
 kvm-all.c       |   97 ++++++-
 memory.c        |  328 +++++++++-------------
 memory.h        |   26 +-
 xen-all.c       |   33 ++-
 9 files changed, 912 insertions(+), 514 deletions(-)

-- 
error compiling committee.c: too many arguments to function

Re: [Qemu-devel] [PULL v2] Memory core space reduction

[Anthony Liguori]

On 03/01/2012 06:55 AM, Avi Kivity wrote:
> This is the current memory queue (posted as two separate series before
> my vacation).  When applied, the overhead of 16 bytes/page is reduced to
> basically nil.
>
> Please pull from:
>
>    git://git.kernel.org/pub/scm/virt/kvm/qemu-kvm.git memory/core

Pulled.  Thanks.

Regards,

Anthony Liguori

>
> v2: fix memory corruption in first patch
>
> ----------------------------------------------------------------
> Avi Kivity (30):
>        ioport: change portio_list not to use memory_region_set_offset()
>        memory: remove memory_region_set_offset()
>        memory: add shorthand for invoking a callback on all listeners
>        memory: switch memory listeners to a QTAILQ
>        memory: code motion: move MEMORY_LISTENER_CALL()
>        memory: move ioeventfd ops to MemoryListener
>        memory: add a readonly attribute to MemoryRegionSection
>        memory: don't pass ->readable attribute to
> cpu_register_physical_memory_log
>        memory: use a MemoryListener for core memory map updates too
>        memory: drop AddressSpaceOps
>        memory: allow MemoryListeners to observe a specific address space
>        xen: ignore I/O memory regions
>        memory: split memory listener for the two address spaces
>        memory: support stateless memory listeners
>        memory: change memory registration to rebuild the memory map on
> each change
>        memory: remove first level of l1_phys_map
>        memory: unify phys_map last level with intermediate levels
>        memory: store MemoryRegionSection pointers in phys_map
>        memory: compress phys_map node pointers to 16 bits
>        memory: fix RAM subpages in newly initialized pages
>        memory: unify the two branches of cpu_register_physical_memory_log()
>        memory: move tlb flush to MemoryListener commit callback
>        memory: make phys_page_find() return a MemoryRegionSection
>        memory: give phys_page_find() its own tree search loop
>        memory: simplify multipage/subpage registration
>        memory: replace phys_page_find_alloc() with phys_page_set()
>        memory: switch phys_page_set() to a recursive implementation
>        memory: change phys_page_set() to set multiple pages
>        memory: unify PhysPageEntry::node and ::leaf
>        memory: allow phys_map tree paths to terminate early
>
>   exec-obsolete.h |    5 +-
>   exec.c          |  875
> ++++++++++++++++++++++++++++++++++++-------------------
>   hw/vhost.c      |   33 ++-
>   ioport.c        |   28 ++-
>   ioport.h        |    1 +
>   kvm-all.c       |   97 ++++++-
>   memory.c        |  328 +++++++++-------------
>   memory.h        |   26 +-
>   xen-all.c       |   33 ++-
>   9 files changed, 912 insertions(+), 514 deletions(-)
>