Crate krun_vmm 

Virtual Machine Monitor that leverages the Linux Kernel-based Virtual Machine (KVM), and other virtualization features to run a single lightweight micro-virtual machine (microVM).

Modules

builder

Handles setup and initialization a Vmm object. Enables pre-boot setup, instantiation and booting of a Firecracker VMM.

resources

Resource store for configured microVM resources.

signal_handler

Signal handling utilities.

vmm_config

Wrappers over structures used to configure the VMM.

worker

Structs

Vmm

Contains the state and associated methods required for the Firecracker VMM.

Enums

Error

Errors associated with the VMM internal logic. These errors cannot be generated by direct user input, but can result from bad configuration of the host (for example if Firecracker doesn’t have permissions to open the KVM fd).

Constants

FC_EXIT_CODE_ARG_PARSING

Command line arguments parsing error.

FC_EXIT_CODE_BAD_CONFIGURATION

Bad configuration for microvm’s resources, when using a single json.

FC_EXIT_CODE_BAD_SYSCALL

Firecracker was shut down after intercepting a restricted system call.

FC_EXIT_CODE_GENERIC_ERROR

Generic error exit code.

FC_EXIT_CODE_OK

Success exit code.

FC_EXIT_CODE_SIGBUS

Firecracker was shut down after intercepting SIGBUS.

FC_EXIT_CODE_SIGSEGV

Firecracker was shut down after intercepting SIGSEGV.

FC_EXIT_CODE_UNEXPECTED_ERROR

Generic exit code for an error considered not possible to occur if the program logic is sound.

Traits

VmmEventsObserver

Trait for objects that need custom initialization and teardown during the Vmm lifetime.

Type Aliases

Result

Shorthand result type for internal VMM commands.