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Kernel: Introduce basic pre-kernel environment

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This implements a simple bootloader that is capable of loading ELF64
kernel images. It does this by using QEMU/GRUB to load the kernel image
from disk and pass it to our bootloader as a Multiboot module.

The bootloader then parses the ELF image and sets it up appropriately.
The kernel's entry point is a C++ function with architecture-native
code.

Co-authored-by: Liav A <liavalb@gmail.com>
This commit is contained in:
Gunnar Beutner 2021-07-18 14:47:32 +02:00 • committed by Andreas Kling
parent 357ddd393e
commit 7e94b090fe
30 changed files with 1207 additions and 181 deletions
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2
Kernel/VM/Region.h
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@ -86,7 +86,7 @@ public:
void set_mmap(bool mmap) { m_mmap = mmap; }
bool is_user() const { return !is_kernel(); }
bool is_kernel() const { return vaddr().get() < 0x00800000 || vaddr().get() >= KERNEL_BASE; }
bool is_kernel() const { return vaddr().get() < 0x00800000 || vaddr().get() >= kernel_base; }
PageFaultResponse handle_fault(const PageFault&, ScopedSpinLock<RecursiveSpinLock>&);