Re: [PATCHv3 00/14] x86/tdx: Add kexec support

[Kirill A. Shutemov]

On Tue, Nov 21, 2023 at 05:10:01PM +0800, Tao Liu wrote:
> > > My colleague Tao helped to double check this, he got the same testing result.
> > > Plesae
> > > 1) what can we do to enable the multiple cpu support for kexec reboot?
> >
> > You would need a patched BIOS image. I've hacked one[1] for my testing.
> > But it only works if kernel runs in 4-level paging mode (specify no5lvl in
> > kernel command line).
> >
> > BIOS folks work on proper patch, but it is not ready yet.
> >
> > [1] https://gist.github.com/kiryl/e1dc1719e0c990b3ceee5d8de8dbf332
> >
> Thanks a lot for providing the BIOS patch. One more question, is the
> patched BIOS image for the host physical machine or for the tdx guest
> vm?

For the guest.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov