diff options
Diffstat (limited to 'src/arch/x86/tables.c')
| -rw-r--r-- | src/arch/x86/tables.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/arch/x86/tables.c b/src/arch/x86/tables.c index 8d2f7b6f20..5940c64eba 100644 --- a/src/arch/x86/tables.c +++ b/src/arch/x86/tables.c @@ -149,6 +149,13 @@ static unsigned long write_smbios_table(unsigned long rom_table_end) if (high_table_pointer) { unsigned long new_high_table_pointer; + /* + * Clear the entire region to ensure the unused space doesn't + * contain garbage from a previous boot, like stale table + * signatures that could be found by the OS. + */ + memset((void *)high_table_pointer, 0, MAX_SMBIOS_SIZE); + new_high_table_pointer = smbios_write_tables(high_table_pointer); rom_table_end = ALIGN_UP(rom_table_end, 16); |