21 Nov
2017
21 Nov
'17
12:23 a.m.
On Mon, Nov 20, 2017 at 04:56:27PM -0600, Michael Parson wrote:
On Mon, 20 Nov 2017, Larry McVoy wrote:
Sorry, we were running Linux/370 on Hercules simulator:
http://www.hercules-390.org/
which I _thought_ emulated the bare metal.
On Mon, Nov 20, 2017 at 12:27:25PM -0700,
arnold(a)skeeve.com wrote:
When I was at IBM, I had a few customers running the product I supported
under Linux on z, and what wikipedia says matches my memory of it being
able to run either on metal or as a VM:
Linux runs on standard, general purpose mainframe CPs (Central
Processors) as well as IFLs (Integrated Facility for Linux). IFLs are
mainframe processors dedicated to running Linux, either natively or
under a hypervisor (z/VM or KVM on z). Microcode restricts IFLs from
running "traditional" workloads, such as z/OS, but they are physically
identical to other z System processors. IFLs are typically less
expensive to acquire from IBM than CPs. Any idea what Linux/370 does? I think it runs on
bare iron.
Pretty sure that's correct, we used to run Linux/370 on simulator to
build BitKeeper images for it. I don't remember any VM stuff.