This is my QEMU Google Summer of Code project.
Here I introduce new device - ATAPI-SCSI bridge.
Its purpose is to unify IDE ATAPI CD-ROM emulation
with SCSI CD-ROM emulation to reduce code duplication and squash bugs.
It's purpose is simple - it just forwards ATAPI commands
to SCSI side for parsing and execution.
Example of using:
qemu-system-x86_64 \
-drive if=none,file=<filename>,id=cdrom \
-drive if=none,id=fake \
-device ide-bridge,id=bridge,drive=fake \
-device scsi-cd,drive=cdrom,bus=bridge.0 \
-hda diskimage \
-m 1024
Acked-by: Hannes Reinecke <h...@suse.de>
Changelog:
v2: reduced amount of patches, some patches merged with each other
v3: order of patches changes for successful compilation after every patch
v4: SCSIRequest * in IDEState renamed to scsi_req
v5: checks for treating bridge as CDROM added to ACHI code
Alexander Bezzubikov (5):
ide: ATAPI-SCSI bridge TypeInfo and init function created
scsi: SCSIDiskReq declaration moved to header
ide: necessary checks corrected to treat ATAPI-SCSI bridge as CDROM
ATAPI-SCSI bridge functions created an can be used by bridge
ide: ATAPI-SCSI bridge transfer is treated as PIO
hw/ide/Makefile.objs | 2 +-
hw/ide/ahci.c | 6 ++-
hw/ide/atapi.c | 20 ++++++++-
hw/ide/bridge.c | 114 +++++++++++++++++++++++++++++++++++++++++++++++++
hw/ide/bridge.h | 10 +++++
hw/ide/core.c | 28 +++++++-----
hw/ide/internal.h | 6 ++-
hw/ide/qdev.c | 43 ++++++++++++++++++-
hw/scsi/scsi-disk.c | 55 ++++++++++++++++++------
include/hw/scsi/scsi.h | 16 +++++++
10 files changed, 271 insertions(+), 29 deletions(-)
create mode 100644 hw/ide/bridge.c
create mode 100644 hw/ide/bridge.h
--
2.1.4
