Hi Shuai Xue: I notice that we are both handling the same problem, my patchset: RFC: https://lkml.org/lkml/fancy/2022/12/5/364 RFC PATCH v1: https://lkml.org/lkml/2022/12/7/244 has CC to you Yingwen's proposal in 2022/12/06[1]: Add Bit 8 in "Common Platform Error Record" -> "Section Descriptor" -> Flags (which Now, Bit 8 through 31 – Reserved) [1] https://members.uefi.org/wg/uswg/mail/thread/9453 Yingwen's proposal makes distinguish synchronous error by CPER report more easy, however, it's not supported yet. Looking forward to your reply if there is any progress on the proposal and your suggestions about my patchset.