Connecting Linux to hypervisors
Posted Aug 12, 2006 17:27 UTC (Sat) by giraffedata
Parent article: Connecting Linux to hypervisors
The hypervisor ROM thing doesn't make much sense as described. The hypervisor ROM shouldn't be loaded into the kernel by Linux and shouldn't be code maintained by Linux developers. It should exist permanently in the virtual machine's address space -- that's what ROM means. It should be totally out of the control of Linux developers and under the control of the hypervisor developers, and the stability of the interface would flow directly from that fact. Just like traditional ISA BIOS.
Ordinarily, hypervisors just offer new instructions instead of memory you can branch to (i.e. an instruction causes an interrupt which hypervisor code that is invisible to Linux handles), but I suppose hypervisor ROM might be faster or more convenient.
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