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Also identity map the multiboot info structure

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Philipp Oppermann
2017-04-18 12:28:59 +02:00
parent fdacfb24f0
commit 11993b7e15
1 changed files with 7 additions and 0 deletions
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7
src/memory/paging/mod.rs
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@@ -185,6 +185,13 @@ pub fn remap_the_kernel<A>(allocator: &mut A, boot_info: &BootInformation)
// identity map the VGA text buffer // identity map the VGA text buffer
let vga_buffer_frame = Frame::containing_address(0xb8000); let vga_buffer_frame = Frame::containing_address(0xb8000);
mapper.identity_map(vga_buffer_frame, WRITABLE, allocator); mapper.identity_map(vga_buffer_frame, WRITABLE, allocator);
// identity map the multiboot info structure
let multiboot_start = Frame::containing_address(boot_info.start_address());
let multiboot_end = Frame::containing_address(boot_info.end_address() - 1);
for frame in Frame::range_inclusive(multiboot_start, multiboot_end) {
mapper.identity_map(frame, PRESENT, allocator);
}
}); });
let old_table = active_table.switch(new_table); let old_table = active_table.switch(new_table);