Re: [PATCH RFC v7 02/64] KVM: x86: Add KVM_CAP_UNMAPPED_PRIVATE_MEMORY

From: Borislav Petkov
Date: Thu Jan 05 2023 - 06:57:59 EST


On Wed, Jan 04, 2023 at 11:47:21AM -0600, Michael Roth wrote:
> But maybe it's okay to just make KVM_CAP_MEMORY_ATTRIBUTES writeable and
> require userspace to negotiate it rather than just tying it to
> CONFIG_HAVE_KVM_MEMORY_ATTRIBUTES. Or maybe introducing a new
> KVM_SET_SUPPORTED_MEMORY_ATTRIBUTES ioctl to pair with
> KVM_GET_SUPPORTED_MEMORY_ATTRIBUTES. It sort of makes sense, since userspace
> needs to be prepared to deal with KVM_EXIT_MEMORY_FAULTs relating to these
> attributes.

Makes sense.

AFAICT, ofc.

--
Regards/Gruss,
Boris.

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