Re: [PATCH 0/4] Allow xml-configured coredump format on VM crash
On 3/27/25 11:14, Nikolai Barybin wrote:
When libvirt processes VM crash event it always dumps core in raw
format.
This series makes it possible to configure dump format via domain xml.
This would be especcialy helpful for Windows guests, because it requires
a lot effort to convert raw dump into wingdb.
Nikolai Barybin (4):
conf: schemas: add coredump_format element to events section
src: conf: add parsing/formatting for 'coredump_format' value
qemu: use configurable dump format in doCoreDumpToAutoDumpPath()
docs: formatdomain: document 'coredump_format' element
docs/formatdomain.rst | 9 +++++
src/conf/domain_conf.c | 64 +++++++++++++++++++++++++++++++
src/conf/domain_conf.h | 2 +
src/conf/schemas/domaincommon.rng | 19 +++++++++
src/libvirt_private.syms | 2 +
src/qemu/qemu_driver.c | 2 +-
6 files changed, 97 insertions(+), 1 deletion(-)
The idea is that correct Windows dump could be collected
only at the moment of the dump collection as dump
collector code in QEMU uses some information from
Windows drivers. Later conversion using external tools
proven to be complex.
That is why we either should specify the type of the
dump inside the configuration file or autoguess the
format. I though that latter could be implemented as
the next step using f.e. presence of HyperV feature or
checking OS type in metadata.
I think that this thing would be useful.
Den