AcpiCommonTables: EINJ: Fix Doorbell storm of EINJ request

Update the EINJ Table Begin Operation section to set the EINJ busy status bit, before EINJ Execution. This is to avoid DB3 storm of EINJ execution requests when an end user forces an infinite loop of error injections. Signed-off-by: Nhi Pham <npham@amperecomputing.com>
AmpereComputing · Jul 30, 2021 · 3e9b55d · 3e9b55d
1 parent dff4ab4
commit 3e9b55d
Showing 1 changed file with 3 additions and 3 deletions.
diff --git a/Silicon/Ampere/AmpereAltraPkg/AcpiCommonTables/Einj.asl b/Silicon/Ampere/AmpereAltraPkg/AcpiCommonTables/Einj.asl
@@ -21,7 +21,7 @@
 [0004]              Injection Entry Count : 00000009
 
 [0001]                             Action : 00 [Begin Operation]
-[0001]                        Instruction : 00 [Read Register]
+[0001]                        Instruction : 03 [Write Register Value]
 [0001]              Flags (decoded below) : 00
                    Preserve Register Bits : 0
 [0001]                           Reserved : 00
@@ -31,9 +31,9 @@
 [0001]                          Bit Width : 40
 [0001]                         Bit Offset : 00
 [0001]               Encoded Access Width : 04 [QWord Access:64]
-[0008]                            Address : 0000000088220000
+[0008]                            Address : 0000000088220140
 
-[0008]                              Value : 0000000000000000
+[0008]                              Value : 0000000000000001
 [0008]                               Mask : FFFFFFFFFFFFFFFF
 
 [0001]                             Action : 01 [Get Trigger Table]