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While testing QMP, I used a simple qemu session of 'qemu-kvm -M none -nodefaults -nographic -qmp stdio' for some experiments. But it took me far too long to remember the magic invocation to unlock QMP into accepting normal commands. While I was able to grep libvirt sources and easily find where libvirt expects the normal "QMP" greeting, I could not find the proper reply to that greeting nearby. Reading the testsuite didn't help either, since there we don't emulate the mandatory handshake. But since my grep hit the testsuite, adding a bit of documentation will make it much easier to jog my memory in the future. * tests/qemumonitortestutils.c (QEMU_JSON_GREETING): Mention that the normal counterpart reply is skipped.
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>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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