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When a watchdog/IO error occurs, one of the possible actions that QEMU might take is to pause the guest. In this scenario libvirt needs to update its internal state for the VM, and emit a lifecycle event: VIR_DOMAIN_EVENT_SUSPENDED with a detail being one of: VIR_DOMAIN_EVENT_SUSPENDED_IOERROR VIR_DOMAIN_EVENT_SUSPENDED_WATCHDOG To future proof against possible QEMU support for multiple monitor consoles, this patch also hooks into the 'STOPPED' event in QEMU and emits a generic VIR_DOMAIN_EVENT_SUSPENDED_PAUSED event * include/libvirt/libvirt.h.in: Add VIR_DOMAIN_EVENT_SUSPENDED_IOERROR * src/qemu/qemu_driver.c: Update VM state to paused when IO error or watchdog events occurrs * src/qemu/qemu_monitor_json.c: Fix typo in disk IO event name
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>