Re: [PATCH 1/2] efi/cper, cxl: Decode CXL Protocol Error Section

From: Smita Koralahalli
Date: Fri Oct 28 2022 - 16:11:04 EST


On 10/10/2022 7:24 AM, Jonathan Cameron wrote:
On Fri, 7 Oct 2022 21:17:13 +0000
Smita Koralahalli <Smita.KoralahalliChannabasappa@xxxxxxx> wrote:

Add support for decoding CXL Protocol Error Section as defined in UEFI 2.9
Section N.2.13.

Do the section decoding in a new cper_cxl.c file. This new file will be
used in the future for more CXL CPERs decode support. Add this to the
existing UEFI_CPER config.

Decode only the fields that are useful to parse the error.

Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@xxxxxxx>
Hi Smita,

A few comments inline, but this looks pretty good to me though lots to
build on top of this (trace events, any in kernel handling necessary etc).

Jonathan


+};
+
+#pragma pack()
I would push the structure definition down into the c file and provide a forwards
definition only in the header.

struct cper_sec_prot_err;


I haven't done this in my v2. In efi/cper.c, I'm calculating the size of the struct. I think forward
structure cannot be laid out there as size isn't known. Please correct me if I'm wrong. I can
incorporate changes accordingly in my v3.

Thanks,
Smita

+
+void cper_print_prot_err(const char *pfx, const struct cper_sec_prot_err *prot_err);
+
+#endif //__CPER_CXL_