This series adds command line file descriptor passing support
to the -drive option. This is a follow-on to the existing
QMP fd passing support provided in the following patch series:
comments.gmane.org/gmane.comp.emulators.qemu/165463
An example of using the new -drive fd and opaque options:
qemu-kvm -drive fd=24,opaque="rdwr:/path/file",index=0,media=disk
When an fd, and optionally opaque, are passed with -drive, they
are added to an automatically generated fd set. The file name
is also generated in the form of "/dev/fdset/nnn", where nnn is
the fd set ID. qemu_open() already knows how to handle a
filename of this format. qemu_open() searches the corresponding
fd set for an fd and when it finds a match, QEMU goes on to use a
dup of that fd just like it would have used an fd that it opened
itself.
Corey Bryant (4):
monitor: Less restrictive fd matching for fd sets
monitor: Enable adding an inherited fd to an fd set
qemu-config: Add -drive fd and opaque options
blockdev: Process -drive fd and opaque options
blockdev.c | 40 +++++++++++++++++-
monitor.c | 128 ++++++++++++++++++++++++++++++++------------------------
monitor.h | 3 ++
qemu-config.c | 8 ++++
qemu-options.hx | 15 ++++++-
5 files changed, 135 insertions(+), 59 deletions(-)
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1.7.11.4