Re: NVMM on non-x86?
Martin Husemann <[email protected]>
| Newsgroups | gmane.os.netbsd.ports.m68k |
|---|---|
| Message-ID | <[email protected]> |
On Mon, Feb 17, 2020 at 12:34:48AM -0800, Chris Hanson wrote: > Can you explain in more detail, or point me to someplace I could read > up? What's needed beyond the Popek & Goldberg virtualization > requirements? You are right, it (maybe) just is a matter of efficiency of the emulated parts of the VMM. I wasn't aware how many unprivileged sensitive instructions the x86 instruction set has untill I looked it up (vs. a single one on m68000). And thinking about it, some of the features introduced with AMD-V or Intel VT-x (or only available in newer x86 cpus) like virtual page tables have no meaning for RISC architectures (but for efficient m68k virtualiziation they would be welcome). Martin