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Subject[PATCHv2 0/2] vhost: a kernel-level virtio server
This implements vhost: a kernel-level backend for virtio,
The main motivation for this work is to reduce virtualization
overhead for virtio by removing system calls on data path,
without guest changes. For virtio-net, this removes up to
4 system calls per packet: vm exit for kick, reentry for kick,
iothread wakeup for packet, interrupt injection for packet.

Some more detailed description attached to the patch itself.

The patches are against 2.6.31-rc4. I'd like them to go into linux-next
and down the road 2.6.32 if possible. Please comment.

Changes from v1:
- Move use_mm/unuse_mm from fs/aio.c to mm instead of copying.
- Reorder code to avoid need for forward declarations
- Kill a couple of debugging printks

Michael S. Tsirkin (2):
mm: export use_mm/unuse_mm to modules
vhost_net: a kernel-level virtio server

MAINTAINERS | 10 +
arch/x86/kvm/Kconfig | 1 +
drivers/Makefile | 1 +
drivers/vhost/Kconfig | 11 +
drivers/vhost/Makefile | 2 +
drivers/vhost/net.c | 411 +++++++++++++++++++++++++++
drivers/vhost/vhost.c | 663 +++++++++++++++++++++++++++++++++++++++++++
drivers/vhost/vhost.h | 108 +++++++
fs/aio.c | 47 +---
include/linux/Kbuild | 1 +
include/linux/miscdevice.h | 1 +
include/linux/mmu_context.h | 9 +
include/linux/vhost.h | 100 +++++++
mm/Makefile | 2 +-
mm/mmu_context.c | 58 ++++
15 files changed, 1378 insertions(+), 47 deletions(-)
create mode 100644 drivers/vhost/Kconfig
create mode 100644 drivers/vhost/Makefile
create mode 100644 drivers/vhost/net.c
create mode 100644 drivers/vhost/vhost.c
create mode 100644 drivers/vhost/vhost.h
create mode 100644 include/linux/mmu_context.h
create mode 100644 include/linux/vhost.h
create mode 100644 mm/mmu_context.c


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