Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

Relocate kernel to high address space (a static + 64 MB for now) to avoid
conflicts with the Linux host kernel. This lets you kexec an unmodified
GENERIC64.

Add kexec-based Linux shim loader for use with the firmware petitboot
loader on PS3 and POWER8 systems. This is reasonably portable to other
architectures, especially FDT-based ones, if similar features are useful
elsewhere.

Netboot support is missing for now and will be added in a future commit,
at which time loader.ps3 will be garbage collected.

Done at: Hackathon

Add block device support. This can't autoload the kernel for some reason,
but can manually. Not sure why.

Add some initial bits, enough to print out the loader greeting. This uses
FreeBSD syscalls for now, but with changes to the numbers, it also works on
Linux.

Disk and network IO are the next steps.