Re: [PATCH 1/3] PCI/AER: Option to leave System Error Interrupts as-is

Borislav Petkov
2018-11-02T16:26:38Z

On Fri, Nov 02, 2018 at 10:17:30AM -0600, Keith Busch wrote:
> VMD acts a bit like a host-bus adapter. The firmware knows about the
> adapter, but not about anything on the bus that it attaches to.
>
> This "hybrid" approach is basically saying that the firmware knows about
> the HBA, and it wants a chance to be notified of errors on the bus it
> attaches to, but the firmware can't do anything about such errors.
>
> The bus in this case is PCIe, where we have capable error handling in the
> kernel driver, so we ultimately want the AER driver handling the errors.

Not a problem - GHES already knows about AER and calls into it for
CPER_SEC_PCIE errors:

ghes_do_proc
-> ghes_handle_aer
|-> aer_recover_queue

--
Regards/Gruss,
Boris.

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