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qemu: pass the information when disks are read-only

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* src/qemu/qemu_conf.c: add the ",readonly=on" for read-only disks
  and also parse it back in qemuParseCommandLineDisk()
* tests/qemuxml2argvtest.c
  tests/qemuxml2argvdata/qemuxml2argv-disk-drive-readonly-disk.args
  tests/qemuxml2argvdata/qemuxml2argv-disk-drive-readonly-disk.xml:
  add a specific regression test
This commit is contained in:
Daniel Veillard 2010-03-11 17:53:49 +01:00
parent 95a515fc44
commit f92c041a1c
4 changed files with 39 additions and 0 deletions
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6
src/qemu/qemu_conf.c
View File

@ -2398,6 +2398,9 @@ qemuBuildDriveStr(virDomainDiskDefPtr disk,
if (bootable &&
disk->device == VIR_DOMAIN_DISK_DEVICE_DISK)
virBufferAddLit(&opt, ",boot=on");
if (disk->readonly &&
qemuCmdFlags & QEMUD_CMD_FLAG_DEVICE)
virBufferAddLit(&opt, ",readonly=on");
if (disk->driverType &&
disk->type != VIR_DOMAIN_DISK_TYPE_DIR &&
qemuCmdFlags & QEMUD_CMD_FLAG_DRIVE_FORMAT)
@ -4694,6 +4697,9 @@ qemuParseCommandLineDisk(const char *val,
_("cannot parse drive unit '%s'"), val);
goto cleanup;
}
} else if (STREQ(keywords[i], "readonly")) {
if ((values[i] == NULL) || STREQ(values[i], "on"))
def->readonly = 1;
}
}

1
tests/qemuxml2argvdata/qemuxml2argv-disk-drive-readonly-disk.args Normal file
View File

@ -0,0 +1 @@
LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -m 214 -smp 1 -nographic -nodefaults -monitor unix:/tmp/test-monitor,server,nowait -no-acpi -boot c -drive file=/dev/HostVG/QEMUGuest1,if=none,id=drive-ide0-0-0 -device ide-drive,bus=ide.0,unit=0,drive=drive-ide0-0-0,id=ide0-0-0 -drive file=/dev/sr0,if=none,media=cdrom,id=drive-ide0-1-0,readonly=on -device ide-drive,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 -usb -device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x3

30
tests/qemuxml2argvdata/qemuxml2argv-disk-drive-readonly-disk.xml Normal file
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@ -0,0 +1,30 @@
<domain type='qemu'>
<name>QEMUGuest1</name>
<uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
<memory>219200</memory>
<currentMemory>219200</currentMemory>
<vcpu>1</vcpu>
<os>
<type arch='i686' machine='pc'>hvm</type>
<boot dev='hd'/>
</os>
<clock offset='utc'/>
<on_poweroff>destroy</on_poweroff>
<on_reboot>restart</on_reboot>
<on_crash>destroy</on_crash>
<devices>
<emulator>/usr/bin/qemu</emulator>
<disk type='block' device='disk'>
<source dev='/dev/HostVG/QEMUGuest1'/>
<target dev='hda' bus='ide'/>
<address type='drive' controller='0' bus='0' unit='0'/>
</disk>
<disk type='block' device='cdrom'>
<source dev='/dev/sr0'/>
<target dev='hdc' bus='ide'/>
<readonly/>
<address type='drive' controller='0' bus='1' unit='0'/>
</disk>
<controller type='ide' index='0'/>
</devices>
</domain>

2
tests/qemuxml2argvtest.c
View File

@ -249,6 +249,8 @@ mymain(int argc, char **argv)
QEMUD_CMD_FLAG_DRIVE_BOOT | QEMUD_CMD_FLAG_DRIVE_FORMAT);
DO_TEST("disk-drive-fat", QEMUD_CMD_FLAG_DRIVE |
QEMUD_CMD_FLAG_DRIVE_BOOT | QEMUD_CMD_FLAG_DRIVE_FORMAT);
DO_TEST("disk-drive-readonly-disk", QEMUD_CMD_FLAG_DRIVE |
QEMUD_CMD_FLAG_DEVICE);
DO_TEST("disk-drive-fmt-qcow", QEMUD_CMD_FLAG_DRIVE |
QEMUD_CMD_FLAG_DRIVE_BOOT | QEMUD_CMD_FLAG_DRIVE_FORMAT);
DO_TEST("disk-drive-shared", QEMUD_CMD_FLAG_DRIVE |