> On x86 platform with MCA, patrol scrub errors are asynchronous error, which are > by default signaled with MCE. It is possible to downgrade the patrol scrub SRAO > to UCNA or other correctable error in the logging/signaling behavior and signal > CMCI only. > > As far as I know, on X86 platform, MCE is handled in do_machche_check() and only > asynchronous error is notified through HEST. Can we safely drop ACPI_HEST_NOTIFY_MCE > and only consider ACPI_HEST_NOTIFY_SEA as synchronous notification? > > Tony, do you have any comments on this? Please point out if I am wrong. Thank you. You are correct. On x86 the HEST notifications are always asynchronous. The only synchronous events are machine check with IA32_MCi_STATUS.AR == 1 (patrol scrub and cache eviction machine checks are async and do not set this bit). -Tony
