Re: [PATCH 02/15] x86/virt/tdx: Add extra memory to TDX Module for Extensions

[Xu Yilun]

> >>> +	if (r != TDX_SUCCESS)
> >>
> >> Similarly could this also be TDX_EXT_MEMORY_POOL_FULL?
> > 
> > I don't think we should pass the case. The Module provides the number of
> > required pages via metadata, host follows and feeds pages but the Module
> > said "Sorry, I'm already full". This is inconsistent behavior that we
> > should call out.
> 
> TDX_EXT_MEMORY_POOL_FULL is not an error code. It is a success code,
> so the question is whether it will ever show up on, say, the very last
> TDH_EXT_MEM_ADD.

It will not show up. I got from Module team that it shows up when the
poll is already full and host still adds more pages.