Re: [RFC PATCH v1 1/2] virt: memctl: control guest physical memory properties

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On Tue, May 14, 2024 at 9:06 AM Greg Kroah-Hartman
<gregkh@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On Mon, May 13, 2024 at 07:03:00PM -0700, Yuanchu Xie wrote:
> > Memctl provides a way for the guest to control its physical memory
> > properties, and enables optimizations and security features. For
> > example, the guest can provide information to the host where parts of a
> > hugepage may be unbacked, or sensitive data may not be swapped out, etc.
> >...
> Pretty generic name for a hardware-specific driver :(
It's not for real hardware btw. Its use case is similar to pvpanic
where the device is emulated by the VMM. I can change the name if it's
a problem.

> Yup, you write this to hardware, please use proper structures and types
> for that, otherwise you will have problems in the near future.
Thanks for the review and comments on endianness and using proper
types. Will do.

Thanks,
Yuanchu





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