diff options
Diffstat (limited to 'src/include/usr/sbeio/sbe_retry_handler.H')
| -rw-r--r-- | src/include/usr/sbeio/sbe_retry_handler.H | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/include/usr/sbeio/sbe_retry_handler.H b/src/include/usr/sbeio/sbe_retry_handler.H index deef15c32..43bc9b84f 100644 --- a/src/include/usr/sbeio/sbe_retry_handler.H +++ b/src/include/usr/sbeio/sbe_retry_handler.H @@ -189,6 +189,21 @@ class SbeRetryHandler #endif /** + * @brief There are 8 scratch registers that the SBE will look at during initialization. + After we bring up the slave SBE in istep 8, hostboot will begin to repurpose + these registers. If we restart the SBE during runtime with HRESET the SBE will + look at these registers which hostboot has repurposed. We do not want the SBE + to use this data as it is no longer valid. If the registers are all zero's then + the SBE will use data from its image. This will work because hostboot has customized + the image with the correct values during the IPL. This function will zero out all + of the scratch registers to make sure the SBE uses its own copy of the values it + is looking for in these registers. + * + * @param[in] i_target - Proc we are clearing scratch regs for + */ + errlHndl_t clearSbeScratchRegisters(TARGETING::Target * i_target); + + /** * @brief This function will look at what iv_currentAction is set to * and take into account how many times we have tried to boot * and how many times we have switched sides. |
