Re: [PATCH] x86: Disable kexec for TDX guests

Dave Hansen
2023-03-28T05:53:41Z

On 3/25/23 09:01, Kirill A. Shutemov wrote:
> The last item is tricky. TDX guests use ACPI MADT MPWK to bring up
> secondary CPUs. The mechanism doesn't allow to put a CPU back offline if
> it has woken up.

I'm not sure I like this approach.

TDX uses the MADT exclusively.

MADT-based systems can't offline CPUs.

kexec() requires