RUMPUSER(3) BSD Library Functions Manual RUMPUSER(3)NAME
rumpuser — rump hypervisor interface
LIBRARY
rump User Library (librumpuser, -lrumpuser)
SYNOPSIS
#include <rump/rumpuser.h>
DESCRIPTION
rumpuser is the hypervisor interface for rump(3) style kernel virtualiza‐
tion. A virtual rump kernel can make calls to the host operating system
libraries and kernel (system calls) using rumpuser interfaces. Any
"slow" hypervisor calls such as file I/O, sychronization wait, or sleep
will cause rump to unschedule the calling kernel thread from the virtual
CPU and free it for other consumers. When the hypervisor call returns to
the kernel, a new scheduling operation takes place.
For example, rump implements kernel threads directly as hypervisor calls
to host pthread(3). This avoids the common virtualization drawback of
multiple overlapping and possibly conflicting implementations of same
functionality in the software stack.
The rumpuser interface is still under development and interface documen‐
tation is available only in source form from src/lib/librumpuser.
SEE ALSOrump(3)BSD March 1, 2010 BSD