Bugfixes and improvements for Intel IOMMU drivers

This patchset includes several bugfixes and code improvements for Intel DMA remapping and interrupt remapping drivers. It's also a preparation for Intel IOMMU device hotplug.

It applies to the latest mainstream kernel on top of

	commit 7e3528c3660a2e8602abc7858b0994d611f74bc3

It has been tested on Intel SandyBridge and Romley-4S platforms.

Thanks!

V2->V3:
1) address review comments of last round

Jiang Liu (20):
iommu/vt-d: use dedicated bitmap to track remapping entry allocation
status
iommu/vt-d: fix PCI device reference leakage on error recovery path iommu/vt-d: fix a race window in allocating domain ID for virtual
machines
iommu/vt-d: fix resource leakage on error recovery path in
iommu_init_domains()
iommu/vt-d, trivial: refine support of 64bit guest address iommu/vt-d, trivial: print correct domain id of static identity
domain
iommu/vt-d, trivial: check suitable flag in function
detect_intel_iommu()
iommu/vt-d, trivial: clean up unused code
iommu/vt-d: mark internal functions as static
iommu/vt-d, trivial: use defined macro instead of hardcoding iommu/vt-d, trivial: simplify code with existing macros iommu/vt-d: fix invalid memory access when freeing DMAR irq iommu/vt-d: keep shared resources when failed to initialize iommu
devices
iommu/vt-d: avoid double free in error recovery path iommu/vt-d: fix access after free issue in function free_dmar_iommu() iommu/vt-d: release invalidation queue when destroying IOMMU unit iommu/vt-d: fix wrong return value of dmar_table_init() iommu/vt-d, PCI, trivial: use dev_is_pci() instead of hardcoding iommu/vt-d, trivial: clean sparse warnings
iommu/vt-d: free all resources if failed to initialize DMARs

 drivers/iommu/dmar.c                |  137 +++++++++++++--------
 drivers/iommu/intel-iommu.c         |  232 ++++++++++++++---------------------
 drivers/iommu/intel_irq_remapping.c |   98 +++++++--------
 drivers/iommu/irq_remapping.c       |    6 +-
 include/linux/dma_remapping.h       |    4 -
 include/linux/dmar.h                |   17 +--
 include/linux/intel-iommu.h         |    3 +-
 7 files changed, 229 insertions(+), 268 deletions(-)

1.7.10.4