Re: [PATCH v11 18/20] x86: Handle TDX erratum to reset TDX private memory during kexec() and reboot

[Huang, Kai]

On Mon, 2023-06-05 at 02:27 +1200, Kai Huang wrote:
> --- a/arch/x86/kernel/reboot.c
> +++ b/arch/x86/kernel/reboot.c
> @@ -720,6 +720,7 @@ void native_machine_shutdown(void)
>  
>  #ifdef CONFIG_X86_64
>  	x86_platform.iommu_shutdown();
> +	x86_platform.memory_shutdown();
>  #endif
>  }

Hi Kirill/Dave,

I missed that this solution doesn't reset TDX private for emergency restart or
when reboot_force is set, because machine_shutdown() isn't called for them.

Is it acceptable?  Or should we handle them too?