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Ideally check='partial' would check exactly the features QEMU would want to enable when asked for a specific CPU model (and features). But there is no way we could ask QEMU how a specific CPU would look like. So we use our definition from CPU map, which may slightly differ as QEMU adds or removes features from CPU models, and thus we may end up checking features which QEMU would not enable while missing some required ones. We can do better in specific cases, though. If a CPU definition uses only a model and disabled features (or none at all), we already know whether QEMU can enable all features required by the CPU model as that's what we use to set usable='yes' attribute in the list of available CPU models in domain capbilities XML. So when a usable CPU model is requested without asking for additional features (disabling features is fine) we can avoid our possible inaccurate check using our CPU map. For backward compatibility we only consider usable models. If a specified model is not usable, we still check it the old way and even let QEMU start it (and disable some features) in case our definition lacks some features compared to QEMU. Fixes: https://gitlab.com/libvirt/libvirt/-/issues/608 Signed-off-by: Jiri Denemark <jdenemar@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com> |
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| .. | ||
| access | ||
| admin | ||
| bhyve | ||
| ch | ||
| conf | ||
| cpu | ||
| cpu_map | ||
| esx | ||
| hyperv | ||
| hypervisor | ||
| interface | ||
| libxl | ||
| locking | ||
| logging | ||
| lxc | ||
| network | ||
| node_device | ||
| nwfilter | ||
| openvz | ||
| qemu | ||
| remote | ||
| rpc | ||
| secret | ||
| security | ||
| storage | ||
| storage_file | ||
| test | ||
| util | ||
| vbox | ||
| vmware | ||
| vmx | ||
| vz | ||
| admin_protocol-structs | ||
| datatypes.c | ||
| datatypes.h | ||
| driver-hypervisor.h | ||
| driver-interface.h | ||
| driver-network.h | ||
| driver-nodedev.h | ||
| driver-nwfilter.h | ||
| driver-secret.h | ||
| driver-state.h | ||
| driver-storage.h | ||
| driver-stream.h | ||
| driver.c | ||
| driver.h | ||
| internal.h | ||
| libvirt_driver_modules.syms | ||
| libvirt_esx.syms | ||
| libvirt_internal.h | ||
| libvirt_libssh2.syms | ||
| libvirt_libssh.syms | ||
| libvirt_linux.syms | ||
| libvirt_logging.syms | ||
| libvirt_lxc.syms | ||
| libvirt_openvz.syms | ||
| libvirt_private.syms | ||
| libvirt_probes.d | ||
| libvirt_public.syms | ||
| libvirt_qemu.syms | ||
| libvirt_remote.syms | ||
| libvirt_sasl.syms | ||
| libvirt_socket.syms | ||
| libvirt_vmware.syms | ||
| libvirt_vmx.syms | ||
| libvirt-domain-checkpoint.c | ||
| libvirt-domain-snapshot.c | ||
| libvirt-domain.c | ||
| libvirt-host.c | ||
| libvirt-interface.c | ||
| libvirt-lxc.c | ||
| libvirt-lxc.pc.in | ||
| libvirt-network.c | ||
| libvirt-nodedev.c | ||
| libvirt-nwfilter.c | ||
| libvirt-qemu.c | ||
| libvirt-qemu.pc.in | ||
| libvirt-secret.c | ||
| libvirt-storage.c | ||
| libvirt-stream.c | ||
| libvirt.c | ||
| libvirt.conf | ||
| libvirt.pc.in | ||
| lock_protocol-structs | ||
| lxc_monitor_protocol-structs | ||
| lxc_protocol-structs | ||
| meson.build | ||
| qemu_protocol-structs | ||
| README | ||
| remote_protocol-structs | ||
| virkeepaliveprotocol-structs | ||
| virnetprotocol-structs | ||
| virtd-admin.socket.in | ||
| virtd-ro.socket.in | ||
| virtd-tcp.socket.in | ||
| virtd-tls.socket.in | ||
| virtd.service.in | ||
| virtd.service.limitmemlock.extra.in | ||
| virtd.service.limitnofile.extra.in | ||
| virtd.service.oomscoreadjust.extra.in | ||
| virtd.service.tasksmax.extra.in | ||
| virtd.socket.in | ||
libvirt library code README
===========================
The directory provides the bulk of the libvirt codebase. Everything
except for the libvirtd daemon and client tools. The build uses a
large number of libtool convenience libraries - one for each child
directory, and then links them together for the final libvirt.so,
although some bits get linked directly to libvirtd daemon instead.
The files directly in this directory are supporting the public API
entry points & data structures.
There are two core shared modules to be aware of:
* util/ - a collection of shared APIs that can be used by any
code. This directory is always in the include path
for all things built
* conf/ - APIs for parsing / manipulating all the official XML
files used by the public API. This directory is only
in the include path for driver implementation modules
* vmx/ - VMware VMX config handling (used by esx/ and vmware/)
Then there are the hypervisor implementations:
* bhyve - bhyve - The BSD Hypervisor
* esx/ - VMware ESX and GSX support using vSphere API over SOAP
* hyperv/ - Microsoft Hyper-V support using WinRM
* lxc/ - Linux Native Containers
* openvz/ - OpenVZ containers using cli tools
* qemu/ - QEMU / KVM using qemu CLI/monitor
* remote/ - Generic libvirt native RPC client
* test/ - A "mock" driver for testing
* vbox/ - Virtual Box using native API
* vmware/ - VMware Workstation and Player using the vmrun tool
* xen/ - Xen using hypercalls, XenD SEXPR & XenStore
Finally some secondary drivers that are shared for several HVs.
Currently these are used by LXC, OpenVZ, QEMU and Xen drivers.
The ESX, Hyper-V, Remote, Test & VirtualBox drivers all
implement the secondary drivers directly
* cpu/ - CPU feature management
* interface/ - Host network interface management
* network/ - Virtual NAT networking
* nwfilter/ - Network traffic filtering rules
* node_device/ - Host device enumeration
* secret/ - Secret management
* security/ - Mandatory access control drivers
* storage/ - Storage management drivers
Since both the hypervisor and secondary drivers can be built as
dlopen()able modules, it is *FORBIDDEN* to have build dependencies
between these directories. Drivers are only allowed to depend on
the public API, and the internal APIs in the util/ and conf/
directories