Kernel Loader: Difference between revisions
| Line 135: | Line 135: | ||
Then, it maps the kernel at the final virtual address. | Then, it maps the kernel at the final virtual address. | ||
<pre> | <pre> | ||
// | // Maps .text as R-X | ||
attribute = 0x40000000000788; | |||
ttbr1_page_table.Map(final_virtual_kernel_base + text_offset, text_end_offset - text_offset, kernel_base + text_offset, &attribute, &g_InitialPageAllocator); | |||
// Maps .rodata as R-- | |||
attribute = 0x60000000000788; | |||
ttbr1_page_table.Map(final_virtual_kernel_base + ro_offset, ro_end_offset - ro_offset, kernel_base + ro_offset, &attribute, &g_InitialPageAllocator); | |||
// Maps .rwdata and .bss as RW- | |||
attribute = 0x60000000000708; | |||
ttbr1_page_table.Map(final_virtual_kernel_base + rw_offset, rw_end_offset - rw_offset, kernel_base + rw_offset, &attribute, &g_InitialPageAllocator); | |||
// Clears BSS. | |||
memset(final_kernel_virtual_base + bss_offset, 0, rw_end_offset - bss_offset); | |||
</pre> | </pre> | ||