Re: [EXTERNAL] Re: [PATCH] x86/tdx: Generate SIGBUS on userspace MMIO

[Kirill A. Shutemov]

On Tue, Jun 11, 2024 at 07:25:27PM +0200, Jeremi Piotrowski wrote:
> Is there a reason we can't fix the handler to do the #VE->mmio emulation
> for userspace too, so that this scenario works just like outside of a
> CVM?

We are looking into it. It requires some groundwork to properly understand
risks of wider attack surface. I think we will get there, but it will take time.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov