Move the internal documentation about qemu threading to the knowledge base. The conversion included rstizing of the text document, mainly just fixing of the headline and enclosing function names and code examples into code block sections. Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
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Knowledge base
Usage
- Secure usage
Secure usage of the libvirt APIs
- Backing chain management
Explanation of how disk backing chain specification impacts libvirt's behaviour and basic troubleshooting steps of disk problems.
- Virtiofs
Share a filesystem between the guest and the host
- Security with QEMU passthrough
Examination of the security protections used for QEMU and how they need configuring to allow use of QEMU passthrough with host files/devices.
- TLS certificates
Generate and deploy x509 certificates for TLS.
- RPM deployment
Explanation of the different RPM packages and illustration of which to pick for installation
- Domain state capture
Comparison between different methods of capturing domain state
- Disk locking
Ensuring exclusive guest access to disks with virtlockd or Sanlock
- Protected virtualization on s390
Running secure s390 guests with IBM Secure Execution
- Launch security
Securely launching VMs with AMD SEV
- Live full disk backup
A walkthrough of how to take effective live full disk backups.
- Merging disk image chains
Ways to reduce or consolidate disk image chains.
- KVM real time
Run real time workloads in guests on a KVM hypervisor
- PCI hotplug
Effective usage of PCI hotplug
- PCI topology
Addressing schemes for PCI devices
- Memory devices
Memory devices and their use
- Snapshots
Details about snapshotting a VM
Debugging
- Debug logs
Configuration of logging and tips on how to file a good bug report.
- Systemtap
Explanation of how to use systemtap for libvirt tracing.
- Capturing core dumps for QEMU
How to configure libvirt to enable capture of core dumps from QEMU virtual machines
Internals
- Incremental backup internals
Incremental backup implementation details relevant for users
- VM migration internals
VM migration implementation details, complementing the info in migration
- API call flow overview
Overview of how an API call is handled by the
libvirt
library and passed over RPC to the daemon.- Spawning commands
Spawning commands from libvirt driver code
- Event loop and worker pool
Libvirt's event loop and worker pool mode
- Lock managers
Use lock managers to protect disk content
- RPC protocol & APIs
RPC protocol information and API / dispatch guide
- QEMU driver threading
Basics of locking and threaded access to qemu driver primitives.