diff options
| -rw-r--r-- | Kernel/Arch/PC/BIOS.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/Kernel/Arch/PC/BIOS.cpp b/Kernel/Arch/PC/BIOS.cpp index 009df2df3f..1214ba80ed 100644 --- a/Kernel/Arch/PC/BIOS.cpp +++ b/Kernel/Arch/PC/BIOS.cpp @@ -43,10 +43,11 @@ MappedROM map_bios() MappedROM map_ebda() { auto ebda_segment_ptr = map_typed<u16>(PhysicalAddress(0x40e)); - auto ebda_length_ptr = map_typed<u16>(PhysicalAddress(0x413)); + auto ebda_length_ptr_b0 = map_typed<u8>(PhysicalAddress(0x413)); + auto ebda_length_ptr_b1 = map_typed<u8>(PhysicalAddress(0x414)); PhysicalAddress ebda_paddr(*ebda_segment_ptr << 4); - size_t ebda_size = *ebda_length_ptr; + size_t ebda_size = (*ebda_length_ptr_b1 << 8) | *ebda_length_ptr_b0; MappedROM mapping; mapping.region = MM.allocate_kernel_region(ebda_paddr.page_base(), page_round_up(ebda_size), {}, Region::Access::Read); |