libvirt/src
Daniel P. Berrangé 1af03e2714 qemu: acquire a pidfile in the driver root directory
When we allow multiple instances of the driver for the same user
account, using a separate root directory, we need to ensure mutual
exclusion. Use a pidfile to guarantee this.

In privileged libvirtd this ends up locking

   /var/run/libvirt/qemu/driver.pid

In unprivileged libvirtd this ends up locking

  /run/user/$UID/libvirt/qemu/run/driver.pid

NB, the latter can vary depending on $XDG_RUNTIME_DIR

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-07-11 12:46:20 +01:00
..
access access: add permissions for network port objects 2019-06-17 15:19:54 +01:00
admin src/admin: use #pragma once in headers 2019-06-13 17:05:08 +02:00
bhyve bhyve: Fix build 2019-07-09 10:42:39 -05:00
conf snapshot: Add internal option to validate XML against schema 2019-07-10 17:13:26 -05:00
cpu cpu_x86: Handle error in x86DataToCPU when calling x86DataAdd 2019-06-24 17:46:49 -04:00
cpu_map cpu_map: Introduce IA32_ARCH_CAPABILITIES MSR features 2019-06-20 14:02:36 +02:00
esx snapshot: Add VIR_DOMAIN_SNAPSHOT_CREATE_VALIDATE flag 2019-07-10 17:34:58 -05:00
hyperv src/hyperv: use #pragma once in headers 2019-06-13 17:05:09 +02:00
interface src/interface: use #pragma once in headers 2019-06-13 17:05:09 +02:00
keycodemapdb@6280c94f30
libxl libxl_driver: Drop needless variable 2019-07-09 16:26:33 +02:00
locking remote: delete the avahi mDNS support 2019-06-21 12:59:42 +01:00
logging remote: delete the avahi mDNS support 2019-06-21 12:59:42 +01:00
lxc remote: delete the avahi mDNS support 2019-06-21 12:59:42 +01:00
network network: avoid including sys/sysctl.h on Linux 2019-06-26 14:36:11 +01:00
node_device build: drop check for udev_monitor_set_receive_buffer_size 2019-05-16 16:39:46 +02:00
nwfilter src/nwfilter: use #pragma once in headers 2019-06-19 17:12:30 +02:00
openvz src/openvz: use #pragma once in headers 2019-06-19 17:12:30 +02:00
phyp phyp: Add various vir*Flags API 2019-07-09 08:18:13 -05:00
qemu qemu: acquire a pidfile in the driver root directory 2019-07-11 12:46:20 +01:00
remote remote: conditionally declare tty variable for non-Win32 platforms 2019-07-05 18:27:24 +01:00
rpc rpc: ensure thread safe initialization of SASL library 2019-07-08 12:59:49 +01:00
secret src/secret: use #pragma once in headers 2019-06-19 17:12:31 +02:00
security security_selinux: Implement virSecurityManagerMoveImageMetadata 2019-07-03 08:36:04 +02:00
storage storage: fix omitted comma for ceph mon hosts to librados 2019-06-25 13:49:31 +02:00
test snapshot: Add VIR_DOMAIN_SNAPSHOT_CREATE_VALIDATE flag 2019-07-10 17:34:58 -05:00
util util: assume modern CPU_ALLOC macros always exist 2019-07-09 18:44:19 +01:00
vbox snapshot: Add VIR_DOMAIN_SNAPSHOT_CREATE_VALIDATE flag 2019-07-10 17:34:58 -05:00
vmware src/vmware: use #pragma once in headers 2019-06-19 17:12:33 +02:00
vmx src/vmx: use #pragma once in headers 2019-06-19 17:12:33 +02:00
vz snapshot: Add VIR_DOMAIN_SNAPSHOT_CREATE_VALIDATE flag 2019-07-10 17:34:58 -05:00
xenapi xen: use #pragma once in headers 2019-06-19 17:12:33 +02:00
xenconfig xen: drop xen_sxpr.(c|h) 2019-07-09 10:27:20 +02:00
admin_protocol-structs
check-aclperms.pl
check-aclrules.pl qemu: delete methods which are no longer supported 2019-06-27 14:41:48 +01:00
check-driverimpls.pl maint: Drop dead code in check-driverimpls.pl 2019-07-10 11:46:22 -05:00
check-drivername.pl
check-symfile.pl
check-symsorting.pl
datatypes.c network: add public APIs for network port object 2019-06-17 15:19:54 +01:00
datatypes.h network: add public APIs for network port object 2019-06-17 15:19:54 +01:00
driver-hypervisor.h Use #pragma once in driver headers 2019-06-13 17:05:08 +02:00
driver-interface.h Use #pragma once in driver headers 2019-06-13 17:05:08 +02:00
driver-network.h network: add public APIs for network port object 2019-06-17 15:19:54 +01:00
driver-nodedev.h Use #pragma once in driver headers 2019-06-13 17:05:08 +02:00
driver-nwfilter.h Use #pragma once in driver headers 2019-06-13 17:05:08 +02:00
driver-secret.h Use #pragma once in driver headers 2019-06-13 17:05:08 +02:00
driver-state.h Use #pragma once in driver headers 2019-06-13 17:05:08 +02:00
driver-storage.h Use #pragma once in driver headers 2019-06-13 17:05:08 +02:00
driver-stream.h Use #pragma once in driver headers 2019-06-13 17:05:08 +02:00
driver.c
driver.h maint: Typo fix for whether 2019-07-09 10:42:39 -05:00
dtrace2systemtap.pl
internal.h src/internal.h: use #pragma once 2019-06-13 17:05:09 +02:00
libvirt_admin_private.syms
libvirt_admin_public.syms
libvirt_atomic.syms
libvirt_driver_modules.syms
libvirt_esx.syms
libvirt_internal.h src/libvirt_internal.h: use #pragma once 2019-06-13 17:05:10 +02:00
libvirt_libssh2.syms
libvirt_libssh.syms
libvirt_linux.syms
libvirt_lxc.syms
libvirt_openvz.syms
libvirt_private.syms util: Drop virsexpr module 2019-07-09 10:27:20 +02:00
libvirt_probes.d
libvirt_public.syms maint: Add missing 'global:' tag in libvirt_public.syms 2019-06-21 14:26:39 -05:00
libvirt_qemu_probes.d
libvirt_qemu.syms
libvirt_remote.syms remote: delete the avahi mDNS support 2019-06-21 12:59:42 +01:00
libvirt_sasl.syms
libvirt_vmware.syms
libvirt_vmx.syms
libvirt_xenconfig.syms xen: drop xen_sxpr.(c|h) 2019-07-09 10:27:20 +02:00
libvirt-admin.c
libvirt-admin.conf
libvirt-domain-snapshot.c snapshot: Add VIR_DOMAIN_SNAPSHOT_CREATE_VALIDATE flag 2019-07-10 17:34:58 -05:00
libvirt-domain.c snapshot: Fix virDomainUndefineFlags docs regarding snapshots 2019-07-08 22:15:40 -05:00
libvirt-host.c libvirt: remove link to outdated mailing list post 2019-07-08 15:02:55 +01:00
libvirt-interface.c
libvirt-lxc.c
libvirt-lxc.pc.in
libvirt-network.c virNetworkGetDHCPLeases: fix docstring format 2019-06-20 15:49:19 +02:00
libvirt-nodedev.c
libvirt-nwfilter.c
libvirt-qemu.c
libvirt-qemu.pc.in
libvirt-secret.c
libvirt-storage.c
libvirt-stream.c
libvirt.c Revert "Separate out StateAutoStart from StateInitialize" 2019-03-06 10:20:31 +01:00
libvirt.conf
libvirt.pc.in
lock_protocol-structs
lxc_monitor_protocol-structs
lxc_protocol-structs
Makefile.am src: don't statically link code that's already in libvirt.so 2019-05-17 14:34:45 +01:00
qemu_protocol-structs
README
remote_protocol-structs remote: add support for new network port APIs 2019-06-17 15:30:22 +01:00
virkeepaliveprotocol-structs
virnetprotocol-structs

       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
 * phyp/         - IBM Power Hypervisor using CLI tools over SSH
 * 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
 * xenapi/       - Xen using libxenserver


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, Power Hypervisor, 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