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hw/block: Request permissions

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This makes all device emulations with a qdev drive property request
permissions on their BlockBackend. The only thing we block at this point
is resizing images for some devices that can't support it.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Kevin Wolf 2017-01-24 13:43:31 +01:00
parent 39829a01ae
commit a17c17a274
17 changed files with 142 additions and 27 deletions
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6
tests/qemu-iotests/051.pc.out
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@ -179,7 +179,7 @@ qququiquit
Testing: -drive file=TEST_DIR/t.qcow2,if=ide,readonly=on
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) QEMU_PROG: Can't use a read-only drive
(qemu) QEMU_PROG: Block node is read-only
QEMU_PROG: Initialization of device ide-hd failed: Device initialization failed.
Testing: -drive file=TEST_DIR/t.qcow2,if=scsi,readonly=on
@ -201,12 +201,12 @@ QEMU X.Y.Z monitor - type 'help' for more information
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device ide-drive,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) QEMU_PROG: -device ide-drive,drive=disk: Can't use a read-only drive
(qemu) QEMU_PROG: -device ide-drive,drive=disk: Block node is read-only
QEMU_PROG: -device ide-drive,drive=disk: Device initialization failed.
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device ide-hd,drive=disk
QEMU X.Y.Z monitor - type 'help' for more information
(qemu) QEMU_PROG: -device ide-hd,drive=disk: Can't use a read-only drive
(qemu) QEMU_PROG: -device ide-hd,drive=disk: Block node is read-only
QEMU_PROG: -device ide-hd,drive=disk: Device initialization failed.
Testing: -drive file=TEST_DIR/t.qcow2,if=none,id=disk,readonly=on -device lsi53c895a -device scsi-disk,drive=disk