diff options
| -rw-r--r-- | src/cpu/x86/mtrr/earlymtrr.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/cpu/x86/mtrr/earlymtrr.c b/src/cpu/x86/mtrr/earlymtrr.c index b6cc73751d..a55b2dcc98 100644 --- a/src/cpu/x86/mtrr/earlymtrr.c +++ b/src/cpu/x86/mtrr/earlymtrr.c @@ -37,6 +37,9 @@ void set_var_mtrr( /* FIXME: It only support 4G less range */ msr_t basem, maskm; + if (type == MTRR_TYPE_WRBACK && !is_cache_sets_power_of_two() && ENV_CACHE_AS_RAM) + printk(BIOS_ERR, "MTRR Error: Type %x may not be supported due to NEM limitation\n", + type); if (!IS_POWER_OF_2(size)) printk(BIOS_ERR, "MTRR Error: size %#x is not a power of two\n", size); if (size < 4 * KiB) |