diff options
| author | Markus Armbruster <armbru@redhat.com> | 2020-06-22 11:42:19 +0200 |
|---|---|---|
| committer | Markus Armbruster <armbru@redhat.com> | 2020-06-23 16:07:07 +0200 |
| commit | a1b40bda089e39b4dfad3cea72a696eb7bdef58e (patch) | |
| tree | 2f4a040e56c23045dab82ddbe047d2564a1c29c0 /docs/system | |
| parent | 63d5dfbe0de3b021f285a471db632381561e1efb (diff) | |
blockdev: Deprecate -drive with bogus interface type
Drives with interface types other than if=none are for onboard
devices. Unfortunately, any such drives the board doesn't pick up can
still be used with -device, like this:
$ qemu-system-x86_64 -nodefaults -display none -S -drive if=floppy,id=bogus,unit=7 -device ide-cd,drive=bogus -monitor stdio
QEMU 5.0.50 monitor - type 'help' for more information
(qemu) info block
bogus: [not inserted]
Attached to: /machine/peripheral-anon/device[0]
Removable device: not locked, tray closed
(qemu) info qtree
bus: main-system-bus
type System
[...]
bus: ide.1
type IDE
dev: ide-cd, id ""
---> drive = "bogus"
[...]
unit = 0 (0x0)
[...]
This kind of abuse has always worked. Deprecate it:
qemu-system-x86_64: -drive if=floppy,id=bogus,unit=7: warning: bogus if=floppy is deprecated, use if=none
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20200622094227.1271650-9-armbru@redhat.com>
Diffstat (limited to 'docs/system')
| -rw-r--r-- | docs/system/deprecated.rst | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/docs/system/deprecated.rst b/docs/system/deprecated.rst index 6f8bf19d37..728233a8ff 100644 --- a/docs/system/deprecated.rst +++ b/docs/system/deprecated.rst @@ -190,6 +190,14 @@ become -device floppy,unit=1,drive=... +``-drive`` with bogus interface type +'''''''''''''''''''''''''''''''''''' + +Drives with interface types other than ``if=none`` are for onboard +devices. It is possible to use drives the board doesn't pick up with +-device. This usage is now deprecated. Use ``if=none`` instead. + + QEMU Machine Protocol (QMP) commands ------------------------------------ |