Re: [PATCH] x86/sev: Make SEV_STATUS available via SYSFS

[Alexey Gladkov]

On Mon, Mar 10, 2025 at 04:41:52PM +0100, Borislav Petkov wrote:
> On Mon, Mar 10, 2025 at 04:33:08PM +0100, Jürgen Groß wrote:
> > Kind of.
> > 
> > /sys/hypervisor is meant to provide data for running under a hypervisor.
> > 
> > It is NOT meant to provide data for running as a hypervisor.
> 
> Hah.
> 
> Which would mean that
> 
> /sys/hypervisor == /sys/guest
> 
> the way we envision it.
> 
> Do we need to dump all the HV levels in it?

Hm. We already have:

/sys/hypervisor/type        (Type of hypervisor)
/sys/hypervisor/guest_type  (Type of guest)

I don't really understand how you propose to locate the files for host and
guest and what you propose to put in /sys/guest.

> I think Joerg wants to dump the fact that there's an SVSM present. I guess we
> can dump the "stack" of "things" running under Linux as you suggest it.
> 
> Hmmm.
> 
> -- 
> Regards/Gruss,
>     Boris.
> 
> https://people.kernel.org/tglx/notes-about-netiquette
> 

-- 
Rgrds, legion