Introduce memory ranges to support VMs with >= 4G RAM

Kernel bits:
- When creating a VM, a list of memory ranges has to be specified,
  similar to the BIOS memory map. This is necessary for VMs with
  RAM sizes approaching 4G because we'll need PCI MMIO space in
  the higher parts of the 32 bit address space.

vmctl and vmd bits:
- Construct appropriate memory ranges to create a VM with a given
  RAM size
- Construct a corresponding BIOS memory map from the memory ranges
  and update the boot params page accordingly.
- Make sure that all variables that represent guest physical addresses
  match the address width of the target CPU instead of using uint32_t.
- Fix some integer promotion glitches that actually restricted VM
  RAM size to 2G.

This changes the VM create ioctl interface, so update your kernel,
vmd, and vmctl.

ok mlarkin@

0 files changed, 0 insertions, 0 deletions