diff options
Diffstat (limited to 'arch/x86_64/src/kapi/memory.cpp')
| -rw-r--r-- | arch/x86_64/src/kapi/memory.cpp | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/arch/x86_64/src/kapi/memory.cpp b/arch/x86_64/src/kapi/memory.cpp index ae0401e..748893a 100644 --- a/arch/x86_64/src/kapi/memory.cpp +++ b/arch/x86_64/src/kapi/memory.cpp @@ -138,8 +138,8 @@ namespace teachos::memory { auto mbi_base = std::bit_cast<std::uintptr_t>(boot::bootstrap_information.mbi); auto mbi_size = boot::bootstrap_information.mbi->size_bytes(); - auto mbi_physical_start = physical_address{mbi_base}; - auto mbi_virtual_start = linear_address{mbi_base + std::bit_cast<std::uintptr_t>(&boot::x86_64::TEACHOS_VMA)}; + auto mbi_physical_start = physical_address{mbi_base & ~std::bit_cast<std::uintptr_t>(&boot::x86_64::TEACHOS_VMA)}; + auto mbi_virtual_start = linear_address{mbi_base}; auto mbi_block_count = (mbi_size + PLATFORM_FRAME_SIZE - 1) / PLATFORM_FRAME_SIZE; for (auto i = 0uz; i < mbi_block_count; ++i) @@ -148,8 +148,6 @@ namespace teachos::memory auto frame = frame::containing(mbi_physical_start) + 1; mapper.map(page, frame, page_mapper::flags::empty); } - - boot::bootstrap_information.mbi = std::bit_cast<multiboot2::information_view const *>(mbi_virtual_start.raw()); } } // namespace |