Re: [PATCH 07/13] x86/virt/tdx: Add SEAMCALL wrapper tdh_mem_sept_add() to add SEPT pages

[Dave Hansen]

On 1/2/25 13:59, Edgecombe, Rick P wrote:
> union tdx_sept_gpa_mapping_info {
> 	struct {
> 		u64 level	: 3;
> 		u64 reserved1	: 9;
> 		u64 gfn		: 40;
> 		u64 reserved2	: 12;
> 	};
> 	u64 full;
> };

This is functionally OK, but seeing bitfields on a value that's probably
going to get shifted around makes me nervous because of:

> https://lore.kernel.org/lkml/20231111020019.553664-1-michael.roth@xxxxxxx/
I wouldn't NAK it just for this, but it's also not how I would code it up.