AMD_GH_NB_CFG_EN_ECS
if ((nb_cfg_reg & AMD_GH_NB_CFG_EN_ECS) == 0)
nb_cfg_reg | AMD_GH_NB_CFG_EN_ECS);
if ((nb_cfg_reg & AMD_GH_NB_CFG_EN_ECS) == 0)
wrmsr(MSR_AMD_NB_CFG, rdmsr(MSR_AMD_NB_CFG) | AMD_GH_NB_CFG_EN_ECS);