diff options
Diffstat (limited to 'src/soc/intel/apollolake/cpu.c')
| -rw-r--r-- | src/soc/intel/apollolake/cpu.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/cpu.c b/src/soc/intel/apollolake/cpu.c index 6b5dee2339..e2d3a9dae7 100644 --- a/src/soc/intel/apollolake/cpu.c +++ b/src/soc/intel/apollolake/cpu.c @@ -183,4 +183,9 @@ void apollolake_init_cpus(device_t dev) /* Clear for take-off */ if (mp_init_with_smm(dev->link_list, &mp_ops) < 0) printk(BIOS_ERR, "MP initialization failure.\n"); + + /* Temporarily cache the memory-mapped boot media. */ + if (IS_ENABLED(CONFIG_BOOT_DEVICE_MEMORY_MAPPED)) + mtrr_use_temp_range(-CONFIG_ROM_SIZE, CONFIG_ROM_SIZE, + MTRR_TYPE_WRPROT); } |