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hw: Deprecate -drive if=scsi with non-onboard HBAs

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Block backends defined with "-drive if=T" with T other than "none" are
meant to be picked up by machine initialization code: a suitable
frontend gets created and wired up automatically.

Drives defined with if=scsi are also picked up by SCSI HBAs added with
-device, unlike other interface types.  Deprecate this usage, as follows.

Create the frontends for onboard HBAs in machine initialization code,
exactly like we do for if=ide and other interface types.  Change
scsi_legacy_handle_cmdline() to create a frontend only when it's still
missing, and warn that this usage is deprecated.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <1487161136-9018-3-git-send-email-armbru@redhat.com>
This commit is contained in:
Markus Armbruster 2017-02-15 13:18:55 +01:00
parent fb8b660e17
commit a64aa5785d
9 changed files with 35 additions and 7 deletions
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2
include/hw/scsi/scsi.h
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@ -177,7 +177,7 @@ static inline SCSIBus *scsi_bus_from_device(SCSIDevice *d)
SCSIDevice *scsi_bus_legacy_add_drive(SCSIBus *bus, BlockBackend *blk,
int unit, bool removable, int bootindex,
const char *serial, Error **errp);
void scsi_bus_legacy_handle_cmdline(SCSIBus *bus);
void scsi_bus_legacy_handle_cmdline(SCSIBus *bus, bool deprecated);
void scsi_legacy_handle_cmdline(void);
/*