On 18/07/2025 09:44, Mark Cave-Ayland wrote:
Following on from the discussions at [1] and more recently [2], this series
introduces a new hardware UUID (hwuuid) element that allows an external
UUID to be provided to the guest, as opposed to the libvirt domain UUID.
The use case for this feature is to allow a domain to cloned and then
restarted without changing its guest-visible UUID e.g. via dmidecode.
Patch 1 introduces the new hardware UUID (hwuuid) element along with an
implementation for the QEMU driver, whilst patch 2 adds additional tests
to ensure the hwuuid functionality is working as expected.
Note that from reading the source it doesn't appear as if all virtualisation
platforms will support this feature: I've included the relevant changes for
the QEMU driver since that is what we use here at Nutanix.
Signed-off-by: Mark Cave-Ayland <mark.caveayl...@nutanix.com>
Ping? Any further comments? I could post a v3 with the documentation
updated to reference 11.7.0 if that helps?
v2:
- Rebase onto master
- Rework if() logic in virSysinfoSystemParseXML() in patch 1 as suggested by
Daniel
- Add R-B tag from Daniel to patch 2
Mark Cave-Ayland (2):
conf: introduce hardware UUID (hwuuid) element
qemuxmlconftest: add tests for new hardware UUID (hwuuid) element
docs/formatdomain.rst | 7 +++
src/conf/domain_conf.c | 43 ++++++++++++++++---
src/conf/domain_conf.h | 1 +
src/conf/schemas/domaincommon.rng | 5 +++
src/qemu/qemu_command.c | 6 ++-
...hwuuid-smbios-uuid-match.x86_64-latest.err | 1 +
.../hwuuid-smbios-uuid-match.xml | 36 ++++++++++++++++
.../qemuxmlconfdata/hwuuid.x86_64-latest.args | 35 +++++++++++++++
.../qemuxmlconfdata/hwuuid.x86_64-latest.xml | 41 ++++++++++++++++++
tests/qemuxmlconfdata/hwuuid.xml | 30 +++++++++++++
tests/qemuxmlconftest.c | 3 ++
11 files changed, 202 insertions(+), 6 deletions(-)
create mode 100644
tests/qemuxmlconfdata/hwuuid-smbios-uuid-match.x86_64-latest.err
create mode 100644 tests/qemuxmlconfdata/hwuuid-smbios-uuid-match.xml
create mode 100644 tests/qemuxmlconfdata/hwuuid.x86_64-latest.args
create mode 100644 tests/qemuxmlconfdata/hwuuid.x86_64-latest.xml
create mode 100644 tests/qemuxmlconfdata/hwuuid.xml
ATB,
Mark.
