[Q:linux][PATCH 0/8] Support TDX host in questing

Thibault Ferrante thibault.ferrante at canonical.com
Wed Sep 3 12:40:23 UTC 2025



On 03/09/2025 14:21, Hector Cao wrote:
>     Two limitation are coming with this submission:
>     - In specific platforms (SPR/EMR), enabling TDX (all conditions fulfilled)
>     will disable kexec due to hardware limitations.
> 
> 
> Can you elaborate this limitation a little bit more please ? I m not sure to fully get the point
Once TDX is fully enabled (all conditions) on SPR(Saphire Rapids) and EMR(Emerald Rapids), you can't use kexec anymore.
kexec will fail to be prepared and will show this warning:
`Not allowed on platform with tdx_pw_mce bug`




More information about the kernel-team mailing list