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Kernel: Rewrite paging and AP initialization

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Initial step of paging now just prepares fast page for heap, actual page
table initialization happens after heap is initialized which allows
x86_64 to never depend on kmalloc for pages.

Processor's stacks are now also spawned with PMM/VMM allocated stacks
instead of kmalloc identity mapped.
This commit is contained in:
Bananymous
2026-05-02 15:45:08 +03:00
parent 1602b195c5
commit 03fccdffe1
11 changed files with 370 additions and 487 deletions
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17
kernel/kernel/kernel.cpp
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@@ -126,19 +126,20 @@ extern "C" void kernel_main(uint32_t boot_magic, uint32_t boot_info)
parse_boot_info(boot_magic, boot_info);
dprintln("boot info parsed");
Processor::create(PROCESSOR_NONE);
auto& processor = Processor::create(PROCESSOR_NONE);
Processor::initialize();
dprintln("BSP initialized");
PageTable::initialize_pre_heap();
PageTable::kernel().initial_load();
dprintln("PageTable stage1 initialized");
PageTable::initialize_fast_page();
dprintln("fast page initialized");
Heap::initialize();
dprintln("Heap initialzed");
dprintln("Heap initialized");
PageTable::initialize_post_heap();
dprintln("PageTable stage2 initialized");
PageTable::initialize_and_load();
dprintln("PageTable initialized");
processor.allocate_stack();
parse_command_line();
dprintln("command line parsed, root='{}', console='{}'", cmdline.root, cmdline.console);
@@ -270,7 +271,7 @@ extern "C" void ap_main()
using namespace Kernel;
Processor::initialize();
PageTable::kernel().initial_load();
InterruptController::get().enable();
Processor::wait_until_processors_ready();