Re: [PATCH v1 11/26] x86/sev: Invalidate pages from the direct map when adding them to the RMP table

Dave Hansen
2024-01-12T20:37:35Z

On 1/12/24 12:28, Tom Lendacky wrote:
> I thought there was also a desire to remove the direct map for any pages
> assigned to a guest as private, not just the case that the comment says.
> So updating the comment would probably the best action.

I'm not sure who desires that.

It's sloooooooow to remove things from the direct map. There's almost
certainly a frequency cutoff where running the whole direct mapping as
4k is better than the cost of mapping/unmapping.

Actually, where _is_ the TLB flushing here?