Kernel Loader: Difference between revisions
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// This is maybe to support reserving unused memory for a second OS/hypervisor? | // This is maybe to support reserving unused memory for a second OS/hypervisor? | ||
KernelLdr_RelocateKernelPhysically(&kernel_base, &kernel_map); | KernelLdr_RelocateKernelPhysically(&kernel_base, &kernel_map); | ||
</pre> | |||
Then it checks all of the kernel map's offsets (and the kernel base) for page alignment. | |||
<pre> | |||
// Read offsets from the kernel map, save on stack. | |||
text_offset = kernel_map->text_offset; | |||
text_end_offset = kernel_map->text_end_offset; | |||
ro_offset = kernel_map->ro_offset; | |||
ro_end_offset = kernel_map->ro_end_offset; | |||
rw_offset = kernel_map->rw_offset; | |||
rw_end_offset = kernel_map->rw_end_offset; | |||
bss_offset = kernel_map->bss_offset; | |||
ini1_load_offset = kernel_map->ini1_load_offset; | |||
dynamic_offset = kernel_map->dynamic_offset; | |||
init_array_offset = kernel_map->init_array_offset; | |||
init_array_end_offset = kernel_map->init_array_end_offset; | |||
// Check all offsets are appropriately aligned. | |||
while (kernel_base & 0xFFF) { } | |||
while (text_offset & 0xFFF) { } | |||
while (text_end_offset & 0xFFF) { } | |||
while (ro_offset & 0xFFF) { } | |||
while (ro_end_offset & 0xFFF) { } | |||
while (rw_offset & 0xFFF) { } | |||
while (rw_end_offset & 0xFFF) { } | |||
</pre> | </pre> | ||