Hypervisors and you!
levipearson at gmail.com
Tue Mar 26 14:45:49 MDT 2013
On Tue, Mar 26, 2013 at 2:21 PM, Michael Torrie <torriem at gmail.com> wrote:
> I was speaking of the user-mode emulation, though, not system emulation.
> Usermode emulation used to be used a lot back in the day. It would let
> you run a linux binary from, say, arm, on x86. Or vice versa. Arguably
> less useful now than it used to be, but if Arm-based linux laptops ever
> caught on it would be useful again. This binary is run without booting
> up any operating system in a virtual machine. No virtual disks either,
> as guest binaries had full access to the system just as a native binary did.
Oh, sorry, I follow you now. I am aware of that mode of Qemu, but I
haven't used it myself. I guess you could combine it with some of the
LXC infrastructure to make a lower-overhead testing environment for a
cross-compiled Linux system image, though it might take a bit of doing
to get such a beast set up. I'm not aware of any big users of Qemu's
user mode emulation right now, though.
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