feat(sgi): firmware first error handling for Neoverse N2 CPU
RD-N2 platform variants have Neoverse N2 CPU that supports RAS
extensions. N2 CPU has error node that captures the faults occurring on
L1, L2 tag and data RAMs. This node captures the error information in
its error records and generates fault handling interrupt on error event.
This patch adds reference implementation to demonstrate firmware-first
error handling of 1-bit CE that occur on CPU. On error event the error
handler reads the error records and ELx context information and forwards
it to secure partition. Secure partition creates a CPER record from this
error information. Finally the handler notifies the OS about the RAS
error using the SDEI notification mechanism.
Signed-off-by: Omkar Anand Kulkarni <omkar.kulkarni@arm.com>
Change-Id: I769550efee10b9a3d89056bca4bfeb2db4708998
diff --git a/plat/arm/css/sgi/include/sgi_ras.h b/plat/arm/css/sgi/include/sgi_ras.h
index 24bbfa7..d311807 100644
--- a/plat/arm/css/sgi/include/sgi_ras.h
+++ b/plat/arm/css/sgi/include/sgi_ras.h
@@ -60,4 +60,9 @@
int probe_data,
const struct err_handler_data *const data);
+/* CPU RAS interrupt handler */
+int sgi_ras_cpu_intr_handler(const struct err_record_info *err_rec,
+ int probe_data,
+ const struct err_handler_data *const data);
+
#endif /* SGI_RAS_H */