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dom0/drive: allow to specify backend domain and force "disk" type

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This commit is contained in:
Marek Marczykowski 2012-03-20 16:21:03 +01:00
parent 0e195de5f6
commit a775e60c41
1 changed files with 19 additions and 4 deletions
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23
dom0/qvm-core/qubes.py
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@ -2210,11 +2210,26 @@ class QubesHVm(QubesVm):
params['volatiledev'] = '' params['volatiledev'] = ''
if self.drive: if self.drive:
stat_res = os.stat(self.drive) type_mode = ":cdrom,r"
if stat.S_ISBLK(stat_res.st_mode): drive_path = self.drive
params['otherdevs'] = "'phy:%s,xvdc:cdrom,r'," % self.drive # leave empty to use standard syntax in case of dom0
backend_domain = ""
if drive_path.startswith("hd:"):
type_mode = ",w"
drive_path = drive_path[3:]
backend_split = re.match(r"^([a-zA-Z0-9]*):(.*)", drive_path)
if backend_split:
backend_domain = "," + backend_split.group(1)
drive_path = backend_split.group(2)
# FIXME: os.stat will work only when backend in dom0...
stat_res = None
if backend_domain == "":
stat_res = os.stat(drive_path)
if stat_res and stat.S_ISBLK(stat_res.st_mode):
params['otherdevs'] = "'phy:%s,xvdc%s%s'," % (drive_path, type_mode, backend_domain)
else: else:
params['otherdevs'] = "'script:file:%s,xvdc:cdrom,r'," % self.drive params['otherdevs'] = "'script:file:%s,xvdc%s%s'," % (drive_path, type_mode, backend_domain)
else: else:
params['otherdevs'] = '' params['otherdevs'] = ''
return params return params