diff options
Diffstat (limited to 'src/soc/intel/common/block/smm')
| -rw-r--r-- | src/soc/intel/common/block/smm/smihandler.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/soc/intel/common/block/smm/smihandler.c b/src/soc/intel/common/block/smm/smihandler.c index 7bd17c3e78..4998532837 100644 --- a/src/soc/intel/common/block/smm/smihandler.c +++ b/src/soc/intel/common/block/smm/smihandler.c @@ -373,6 +373,10 @@ void smihandler_southbridge_apmc( /* EBX in the state save contains the GNVS pointer */ uint32_t reg_ebx = save_state_ops->get_reg(state, RBX); gnvs = (struct global_nvs *)(uintptr_t)reg_ebx; + if (smm_points_to_smram(gnvs, sizeof(*gnvs))) { + printk(BIOS_ERR, "SMI#: ERROR: GNVS overlaps SMM\n"); + return; + } smm_initialized = 1; printk(BIOS_DEBUG, "SMI#: Setting GNVS to %p\n", gnvs); } |