PEL: Add ESEL event log keyword to README
Explain how the ESEL keyword can be used in the Additional Data event
log property to send in PEL data.
Signed-off-by: Matt Spinler <spinler@us.ibm.com>
Change-Id: I47fd97c4ee5f756b7d0139a4041f1e395c2859b3
diff --git a/extensions/openpower-pels/README.md b/extensions/openpower-pels/README.md
index eac30be..bf3e260 100644
--- a/extensions/openpower-pels/README.md
+++ b/extensions/openpower-pels/README.md
@@ -23,6 +23,21 @@
The code will assign its own error log ID to this PEL, and also update the
commit timestamp field to the current time.
+#### ESEL
+
+This keyword's data contains a full PEL in string format. This is how hostboot
+sends down PELs when it is configured in IPMI communication mode. The PEL is
+handled just like the PEL obtained using the RAWPEL keyword.
+
+The syntax is:
+
+```
+ESEL=
+"00 00 df 00 00 00 00 20 00 04 12 01 6f aa 00 00 50 48 00 30 01 00 33 00 00..."
+```
+
+Note that there are 16 bytes of IPMI SEL data before the PEL data starts.
+
#### _PID
This keyword that contains the application's PID is added automatically by the