Re: [PATCH V7 2/5] x86/hyper-v: Add hyperv Isolation VM check in the cc_platform_has()

[Wei Liu]

On Tue, Dec 14, 2021 at 05:05:01PM +0100, Borislav Petkov wrote:
> On Mon, Dec 13, 2021 at 02:14:03AM -0500, Tianyu Lan wrote:
> > From: Tianyu Lan <Tianyu.Lan@xxxxxxxxxxxxx>
> > 
> > Hyper-V provides Isolation VM for confidential computing support and
> > guest memory is encrypted in it. Places checking cc_platform_has()
> > with GUEST_MEM_ENCRYPT attr should return "True" in Isolation vm. e.g,
> 
> Stick to a single spelling variant: "VM".
> 
> > swiotlb bounce buffer size needs to adjust according to memory size
> > in the sev_setup_arch().
> 
> So basically you wanna simply say here:
> 
> "Hyper-V Isolation VMs need to adjust the SWIOTLB size just like SEV
> guests. Add a hyperv_cc_platform_has() variant which enables that."
> 
> ?
> 
> With that addressed you can have my
> 
> Acked-by: Borislav Petkov <bp@xxxxxxx>

Thanks. I can address your comments when I pick up this series.

Wei.

> 
> Thx.
> 
> -- 
> Regards/Gruss,
>     Boris.
> 
> https://people.kernel.org/tglx/notes-about-netiquette