Re: [PATCH v3 3/3] x86/acpi, x86/boot: Add multiprocessor wake-up support

[Kuppuswamy, Sathyanarayanan]

On 5/10/21 9:55 AM, Rafael J. Wysocki wrote:
> I'm not sure how my comment regarding the fact that for a given CPU
> this function is only usable once has been addressed.
>
> While it may not be a practical concern in the use case that you are
> after (TDX), this is a generic mechanism and it needs to cover other
> possible usage scenarios.

For the same CPU, if we try to use mailbox again, firmware will not
respond to it. So the command will timeout and return error.

--
Sathyanarayanan Kuppuswamy
Linux Kernel Developer