diff options
Diffstat (limited to 'src/import')
3 files changed, 91 insertions, 5 deletions
diff --git a/src/import/chips/p9/procedures/utils/stopreg/p9_cpu_reg_restore_instruction.H b/src/import/chips/p9/procedures/utils/stopreg/p9_cpu_reg_restore_instruction.H index 27603b23f..b92d439bb 100755 --- a/src/import/chips/p9/procedures/utils/stopreg/p9_cpu_reg_restore_instruction.H +++ b/src/import/chips/p9/procedures/utils/stopreg/p9_cpu_reg_restore_instruction.H @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2015,2018 */ +/* Contributors Listed Below - COPYRIGHT 2015,2020 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -76,7 +76,8 @@ enum SKIP_SPR_REST_INST = 0x4800001c, //b . +0x01c MFLR_R30 = 0x7fc802a6, SKIP_SPR_SELF_SAVE = 0x3bff0020, //addi r31 r31, 0x20 - MTLR_INST = 0x7fc803a6 //mtlr r30 + MTLR_INST = 0x7fc803a6, //mtlr r30 + BRANCH_BE_INST = 0x48000020, }; #ifdef __cplusplus diff --git a/src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.C b/src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.C index 5ca5bbf45..d3e11e8ab 100755 --- a/src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.C +++ b/src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.C @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2015,2019 */ +/* Contributors Listed Below - COPYRIGHT 2015,2020 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -1829,7 +1829,68 @@ StopReturnCode_t proc_stop_init_self_save( void* const i_pImage, const uint32_t } //----------------------------------------------------------------------------------------------------- + +StopReturnCode_t proc_stop_api_discover_capability( void* const i_pImage, uint64_t * o_inCompVector ) +{ + StopReturnCode_t l_rc = STOP_SAVE_SUCCESS; + uint64_t l_incompVector = 0; + uint32_t l_tempWord = 0; + *o_inCompVector = 0; + + do + { + if( !i_pImage ) + { + l_rc = STOP_SAVE_ARG_INVALID_IMG; + break; + } + + l_tempWord = + *(uint32_t*)((uint8_t*)i_pImage + CPMR_HOMER_OFFSET + SMF_SUPPORT_SIGNATURE_OFFSET); + + if( l_tempWord != SWIZZLE_4_BYTE(SMF_SELF_SIGNATURE) ) + { + l_incompVector |= SMF_SUPPORT_MISSING_IN_HOMER; + } + + l_tempWord = *(uint32_t *)((uint8_t *)i_pImage + CPMR_HOMER_OFFSET + CPMR_HEADER_SIZE ); + + if( l_tempWord != SWIZZLE_4_BYTE(BRANCH_BE_INST) ) + { + l_incompVector |= SELF_SUPPORT_MISSING_FOR_LE_HYP; + } + + l_tempWord = *(uint8_t *)((uint8_t *)i_pImage + CPMR_HOMER_OFFSET + CPMR_SELF_RESTORE_VER_BYTE ); + + if( l_tempWord < SELF_SAVE_RESTORE_VER ) + { + l_incompVector |= SELF_RESTORE_VER_MISMATCH; + } + + l_tempWord = *(uint8_t *)((uint8_t *)i_pImage + CPMR_HOMER_OFFSET + CPMR_STOP_API_VER_BYTE ); + + if( l_tempWord < STOP_API_CPU_SAVE_VER ) + { + l_incompVector |= IPL_RUNTIME_CPU_SAVE_VER_MISMATCH; + } + + *o_inCompVector = l_incompVector; + + if( l_incompVector ) + { + l_rc = STOP_SAVE_API_IMG_INCOMPATIBLE; + } + + }while(0); + + return l_rc; +} + +} //extern "C" + #ifdef __cplusplus } //namespace stopImageSection ends -} //extern "C" + +//----------------------------------------------------------------------------------------------------- + #endif diff --git a/src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.H b/src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.H index 63fd89d39..983a3845d 100755 --- a/src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.H +++ b/src/import/chips/p9/procedures/utils/stopreg/p9_stop_api.H @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2015,2019 */ +/* Contributors Listed Below - COPYRIGHT 2015,2020 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -114,6 +114,7 @@ typedef enum STOP_SAVE_FAIL = 14, // for internal failure within firmware. STOP_SAVE_SPR_ENTRY_MISSING = 15, STOP_SAVE_SPR_BIT_POS_RESERVE = 16, + STOP_SAVE_API_IMG_INCOMPATIBLE = 18, } StopReturnCode_t; /** @@ -198,6 +199,21 @@ typedef enum BIT_POS_USPRG1 = 30, } SprBitPositionList_t; +/** + * @brief List of major incompatibilities between API version. + * @note STOP APIs assumes a specific HOMER layout, certain + * level of CME-SGPE hcode and certain version of self-save restore + * binary. A mismatch can break STOP function. + */ + +typedef enum +{ + SMF_SUPPORT_MISSING_IN_HOMER = 0x01, + SELF_SUPPORT_MISSING_FOR_LE_HYP = 0x02, + IPL_RUNTIME_CPU_SAVE_VER_MISMATCH = 0x04, + SELF_RESTORE_VER_MISMATCH = 0x08, +} VersionIncompList_t; + #ifdef __cplusplus extern "C" { @@ -341,6 +357,14 @@ StopReturnCode_t proc_stop_save_cpureg( void* const i_pImage, */ StopReturnCode_t proc_stop_init_self_save( void* const i_pImage, const uint32_t i_corePos ); +/** + * @brief verifies if API is compatible of current HOMER image. + * @param[in] i_pImage points to the start of HOMER image of P9 chip. + * @param[out] o_inCompVector list of incompatibilities found. + * @return STOP_SAVE_SUCCESS if if API succeeds, error code otherwise. + */ +StopReturnCode_t proc_stop_api_discover_capability( void* const i_pImage, uint64_t* o_inCompVector ); + #ifdef __cplusplus } // extern "C" }; // namespace stopImageSection ends |
