# Re: \[PATCH v2 03/12\] x86/sev: Save and print negotiated GHCB protocol version

- From: Borislav Petkov \<bp@alien8.de\>
- Date: 2021-11-03 14:27:31 
- List: linux-coco
- Page: https://ratatoskr.run/linux-coco/2021/11/1561893
- Thread: https://ratatoskr.run/kexec/2021/11/1561893/t.md

```text
On Mon, Sep 13, 2021 at 05:55:54PM +0200, Joerg Roedel wrote:
> From: Joerg Roedel <redacted>
> 
> Save the results of the GHCB protocol negotiation into a data structure
> and print information about versions supported and used to the kernel
> log.

Which is useful for?

> +/*
> + * struct sev_ghcb_protocol_info - Used to return GHCB protocol
> + *				   negotiation details.
> + *
> + * @hv_proto_min:	Minimum GHCB protocol version supported by Hypervisor
> + * @hv_proto_max:	Maximum GHCB protocol version supported by Hypervisor
> + * @vm_proto:		Protocol version the VM (this kernel) will use
> + */
> +struct sev_ghcb_protocol_info {

Too long a name - ghcb_info is perfectly fine.

-- 
Regards/Gruss,
    Boris.

https://people.kernel.org/tglx/notes-about-netiquette
```