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

Borislav Petkov
2025-03-10T16:06:21Z

On Mon, Mar 10, 2025 at 05:00:50PM +0100, Juergen Gross wrote:
> There is work in progress for SEV guests at least.

Nice.

> Shouldn't the coco related information be the same regardless of the
> hypervisor beneath?

Right, but...

> IOW: do you envision the coding for populating the coco related sysfs guest
> nodes to be different when running as a KVM or a Hyper-V guest?

... if you have some coco tools which need to read out HV info - for whatever
reason - then they'll have to do:

if (HV == KVM)
read /sys/kvm
else if (HV == Xen)
read /sys/xen
else
...

which we might save them upfront...

--
Regards/Gruss,
Boris.