[Info-vax] CRTL and RMS vs SSIO

[Stephen Hoffman]

On 2021-10-12 22:57:43 +0000, Stephen Hoffman said:
> 
> That's not at all what I am referring to with that.


ps: The OpenVMS x86-64 kernel is available and those of us with V9.1-A 
have it, which means re-hosting the kernel else-platform is not going 
to happen any time soon.

And with the ability to run Linux, BSD, Windows or other guests within 
a hypervisor on the same box, the effort of turning OpenVMS into a 
Linux WSL or MICA-like or Sector7-like seems unlikely to draw much if 
any interest.

Longer term, I don't see the point of re-hosting onto the Linux 
kernel—the Linux kernel is fine and works well, it's just an older 
design—for wholly rehosting a platform for future work.

If somebody is going to do that work, Linux isn't as big a step forward 
as might otherwise be available.

For the near-term, adding paravirtualization picks up some hardware 
support by using the drivers available within the hypervisor.

OpenVMS native driver support for x86-64 hardware will continue to 
evolve over time too, both as VSI makes hardware plans and as customers 
make hardware support requests to VSI.

Which in aggregate means next time that this kernel-rehosting 
discussion might arise in earnest will probably be as a prelude to 
porting to Arm, RISC-V, or some other architecture.

And I am still be skeptical of picking Linux as the target for 
kernel-rehosting, maybe pending the addition of a Linux analog to WSL 
or MICA.


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