[edk2-devel] [PATCH edk2-platforms v2 1/3] IpmiFeaturePkg: fix IPMI GetSelfTest command response parsing

[Mike Maslenkin]

Byte 0 of a response contains completion code for the command.
So, the examined data starts from byte 1. It's easy to make a mistake
here since specification counts response data from 1.

For the "Get Self Test Results" command Intelligent Platform Management
Interface Specification v2.0 rev 1.1 paragraph 20.4 defines response as:
+-----+---------------------------------------------------------------+
|byte | data field                                                    |
+-----+---------------------------------------------------------------+
| 1   | Completion Code                                               |
|     |                                                               |
| 2   | 55h =  No error. All Self Tests Passed.                       |
|     | 56h = Self Test function not implemented in this controller.  |
|     | 57h = Corrupted or inaccessible data or devices               |
|     | 58h = Fatal hardware error                                    |
|     |                                                               |
| 3   | For byte 2 = 55h, 56h, FFh: 00h                               |
|     | For byte 2 = 58h, all other: Device-specific                  |
|     | For byte 2 = 57h: self-test error bitfield.                   |
+-----+---------------------------------------------------------------+

Signed-off-by: Mike Maslenkin <mike.maslenkin at gmail.com>
Reviewed-by: Isaac Oram <Isaac.w.oram at intel.com>
Cc: Nate DeSimone <nathaniel.l.desimone at intel.com>
Cc: Liming Gao <gaoliming at byosoft.com.cn>
---
 .../IpmiFeaturePkg/GenericIpmi/Dxe/IpmiInit.c               | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/Dxe/IpmiInit.c b/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/Dxe/IpmiInit.c
index d788b4886723..aeaefaad642e 100644
--- a/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/Dxe/IpmiInit.c
+++ b/Features/Intel/OutOfBandManagement/IpmiFeaturePkg/GenericIpmi/Dxe/IpmiInit.c
@@ -161,7 +161,7 @@ Returns:
     // Check the IPMI defined self test results.
     // Additional Cases are device specific test results.
     //
-    switch (IpmiInstance->TempData[0]) {
+    switch (IpmiInstance->TempData[1]) {
       case IPMI_APP_SELFTEST_NO_ERROR:
       case IPMI_APP_SELFTEST_NOT_IMPLEMENTED:
         IpmiInstance->BmcStatus = BMC_OK;
@@ -173,7 +173,7 @@ Returns:
         // BootBlock Firmware corruption, and Operational Firmware Corruption.  All
         // other errors are BMC soft failures.
         //
-        if ((IpmiInstance->TempData[1] & (IPMI_APP_SELFTEST_FRU_CORRUPT | IPMI_APP_SELFTEST_FW_BOOTBLOCK_CORRUPT | IPMI_APP_SELFTEST_FW_CORRUPT)) != 0) {
+        if ((IpmiInstance->TempData[2] & (IPMI_APP_SELFTEST_FRU_CORRUPT | IPMI_APP_SELFTEST_FW_BOOTBLOCK_CORRUPT | IPMI_APP_SELFTEST_FW_CORRUPT)) != 0) {
           IpmiInstance->BmcStatus = BMC_HARDFAIL;
         } else {
           IpmiInstance->BmcStatus = BMC_SOFTFAIL;
@@ -181,7 +181,7 @@ Returns:
         //
         // Check if SDR repository is empty and report it if it is.
         //
-        if ((IpmiInstance->TempData[1] & IPMI_APP_SELFTEST_SDR_REPOSITORY_EMPTY) != 0) {
+        if ((IpmiInstance->TempData[2] & IPMI_APP_SELFTEST_SDR_REPOSITORY_EMPTY) != 0) {
           if (*ErrorCount < MAX_SOFT_COUNT) {
             StatusCodeValue[*ErrorCount] = EFI_COMPUTING_UNIT_FIRMWARE_PROCESSOR | CU_FP_EC_SDR_EMPTY;
             (*ErrorCount)++;
-- 
2.35.3



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