v3: Rebase, small tweaks/fixes and add locks to provide basic thread safety
(basic because it is not really tested).
v2:
- Implement "split vfio addr space" appraoch. [Paolo]
- Add back 'device reset' in nvme_close(). [Paolo]
- Better variable namings. [Stefan]
- "Reuse" macro definitions from NVMe emulation code.
- Rebase onto current master which has polling by default and update
performance results accordingly.
- Update MAINTAINERS.
- Specify namespace in URI.
- The sporadical I/O error from v1 "disappeared" in this version.
- Tests one: qemu-img bench, fio, bonnie++ and installation of
ubuntu/fedora/rhel on QEMU emulated nvme and a Intel P3700 card.
Fam Zheng (6):
stubs: Add stubs for ram block API
block: Add VFIO based NVMe driver
block: Introduce bdrv_dma_map and bdrv_dma_unmap
block/nvme: Implement .bdrv_dma_map and .bdrv_dma_unmap
qemu-img: Map bench buffer
block: Move NVMe spec definitions to a separate header
MAINTAINERS | 6 +
block/Makefile.objs | 1 +
block/block-backend.c | 10 +
block/io.c | 24 +
block/nvme-vfio.c | 703 +++++++++++++++++++++++++
block/nvme-vfio.h | 30 ++
block/nvme.c | 1103 ++++++++++++++++++++++++++++++++++++++++
block/nvme.h | 700 +++++++++++++++++++++++++
block/trace-events | 32 ++
hw/block/nvme.h | 698 +------------------------
include/block/block.h | 2 +
include/block/block_int.h | 4 +
include/sysemu/block-backend.h | 3 +
qemu-img.c | 9 +-
stubs/Makefile.objs | 1 +
stubs/ram-block.c | 16 +
16 files changed, 2644 insertions(+), 698 deletions(-)
create mode 100644 block/nvme-vfio.c
create mode 100644 block/nvme-vfio.h
create mode 100644 block/nvme.c
create mode 100644 block/nvme.h
create mode 100644 stubs/ram-block.c
--
2.9.4
