[PATCH 0/15] Device assignment & MSI enhancement

[Sheng Yang <sheng@linux.intel.com>]

Hi Avi and Marcelo

Merry Xmas! And here is the v2 of patchset. Target at 2.6.29 for it contained
a lot of fix and improvement of current device assignment and MSI feature.

Change from V1:

Addressed Marcelo's comments, and:
1. Fix racy in kvm_free_assigned_irq(). In case to do this, I fetch one
patch (irq_fifo) from original MSI-X patchset. Indeed a nice catch of Marcelo.
:)

2. Unified kvm_set_irq() with ioapic_deliver(). It didn't save much, but
duplicate is always bothering, and I have modified bitmask for vcpu to a real
bitmap (maybe not all, just what I have seen).

And for V1:

1. Add gsi_msg mapping mechanism, which gsi can used to indicated a MSI
interrupt.(Notice API/ABI changed a little, but we don't have userspace patch
now, so it should be OK.)

2. Provide MSI disable capability.

arch/x86/kvm/lapic.c      |   11 ++-
include/linux/kvm.h       |   15 +++-
include/linux/kvm_host.h  |   26 +++++-
include/linux/kvm_types.h |   17 ++++
virt/kvm/ioapic.c         |  117 ++++++++++---------------
virt/kvm/ioapic.h         |   23 +----
virt/kvm/irq_comm.c       |  184 ++++++++++++++++++++++++++++++++++++---
virt/kvm/kvm_main.c       |  212 ++++++++++++++++++++++++++++-----------------
8 files changed, 415 insertions(+), 190 deletions(-)

Sorry for the patchset size, it's too easy to grow fast, and I am a little too
lazy to split them into more batches in the Xmas... :)

--
regards
Yang, Sheng