Re: [PATCH 04/15] x86/virt/tdx: Enable the Extensions right after basic TDX Module init

From: Peter Fang

Date: Sun Jun 14 2026 - 03:00:48 EST


On Mon, Jun 08, 2026 at 06:12:35PM +0800, Xu Yilun wrote:
>
> >
> > The handling of tdx_quote_init() in Patch 6 suggests a more
> > best-effort approach.
>
> TDX Quoting is however a clear self-contained add-on feature from OS POV.
> Though I'm not sure if a TDX platform is still a safe TCB with DICE
> available but failed, and good for "best-effort" policy? Maybe Peter
> could answer.

The DICE extension is just one of the ways to generate a Quote for the
guest. If DICE is not available, TDX can fall back to the existing
userspace SGX Quoting flow. So I think a best-effort approach makes
sense here.

> >