Re: [PATCH v2 02/12] mm: Introduce a function to check for virtualization protection features
From: Christoph Hellwig
Date: Thu Aug 19 2021 - 05:47:52 EST
On Fri, Aug 13, 2021 at 11:59:21AM -0500, Tom Lendacky wrote:
> +#define PATTR_MEM_ENCRYPT 0 /* Encrypted memory */
> +#define PATTR_HOST_MEM_ENCRYPT 1 /* Host encrypted memory */
> +#define PATTR_GUEST_MEM_ENCRYPT 2 /* Guest encrypted memory */
> +#define PATTR_GUEST_PROT_STATE 3 /* Guest encrypted state */
Please write an actual detailed explanaton of what these mean, that
is what implications it has on the kernel.