Revision 24711492 lib/hypervisor/hv_kvm.py
| b/lib/hypervisor/hv_kvm.py | ||
|---|---|---|
| 2003 | 2003 |
"""Verifies that hotplug is supported. |
| 2004 | 2004 |
|
| 2005 | 2005 |
Hotplug is *not* supported in case of: |
| 2006 |
- qemu versions < 1.0 |
|
| 2007 | 2006 |
- security models and chroot (disk hotplug) |
| 2008 | 2007 |
- fdsend module is missing (nic hot-add) |
| 2009 | 2008 |
|
| 2010 | 2009 |
@raise errors.HypervisorError: in one of the previous cases |
| 2011 | 2010 |
|
| 2012 | 2011 |
""" |
| 2013 |
output = self._CallMonitorCommand(instance.name, self._INFO_VERSION_CMD) |
|
| 2014 |
# TODO: search for netdev_add, drive_add, device_add..... |
|
| 2015 |
match = self._INFO_VERSION_RE.search(output.stdout) |
|
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if not match: |
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raise errors.HotplugError("Try hotplug only in running instances.")
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|
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v_major, v_min, _, _ = match.groups() |
|
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if (int(v_major), int(v_min)) < (1, 0): |
|
| 2020 |
raise errors.HotplugError("Hotplug not supported for qemu versions < 1.0")
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| 2021 |
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| 2022 | 2012 |
if dev_type == constants.HOTPLUG_TARGET_DISK: |
| 2023 | 2013 |
hvp = instance.hvparams |
| 2024 | 2014 |
security_model = hvp[constants.HV_SECURITY_MODEL] |
| ... | ... | |
| 2035 | 2025 |
raise errors.HotplugError("Cannot hot-add NIC."
|
| 2036 | 2026 |
" fdsend python module is missing.") |
| 2037 | 2027 |
|
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def HotplugSupported(self, instance): |
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"""Checks if hotplug is generally supported. |
|
| 2030 |
|
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Hotplug is *not* supported in case of: |
|
| 2032 |
- qemu versions < 1.0 |
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- for stopped instances |
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|
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@raise errors.HypervisorError: in one of the previous cases |
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| 2036 |
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""" |
|
| 2038 |
output = self._CallMonitorCommand(instance.name, self._INFO_VERSION_CMD) |
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# TODO: search for netdev_add, drive_add, device_add..... |
|
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match = self._INFO_VERSION_RE.search(output.stdout) |
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if not match: |
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raise errors.HotplugError("Try hotplug only in running instances.")
|
|
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v_major, v_min, _, _ = match.groups() |
|
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if (int(v_major), int(v_min)) < (1, 0): |
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raise errors.HotplugError("Hotplug not supported for qemu versions < 1.0")
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| 2046 |
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|
| 2038 | 2047 |
def _CallHotplugCommand(self, name, cmd): |
| 2039 | 2048 |
output = self._CallMonitorCommand(name, cmd) |
| 2040 | 2049 |
# TODO: parse output and check if succeeded |
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