Re: [PATCHv8 00/17, CORRECTED] x86/tdx: Add kexec support

From: Tao Liu
Date: Thu Mar 07 2024 - 01:57:50 EST


Hi Kirill,

On Wed, Mar 06, 2024 at 05:02:45PM +0200, Kirill A. Shutemov wrote:
> On Tue, Feb 27, 2024 at 11:24:35PM +0200, Kirill A. Shutemov wrote:
> > The patchset adds bits and pieces to get kexec (and crashkernel) work on
> > TDX guest.
> >
> > The last patch implements CPU offlining according to the approved ACPI
> > spec change poposal[1]. It unlocks kexec with all CPUs visible in the target
> > kernel. It requires BIOS-side enabling. If it missing we fallback to booting
> > 2nd kernel with single CPU.
> >
> > Please review. I would be glad for any feedback.
>
> Thomas, Ingo, Borislav, Dave,
>
> Any feedback?
>
> Is there anything else I can do to get the patchset moving?
>
I tested the patchset with Linux 6.8-rc6, no problem found. With the
patchset, a vmcore can be generated successfully in tdx VM and can be
analyzed by crash utility.

Tested-by: Tao Liu <ltao@xxxxxxxxxx>

Thanks,
Tao Liu

> --
> Kiryl Shutsemau / Kirill A. Shutemov