| Age | Commit message (Collapse) | Author |
|---|
|
This enables further work on implementing KASLR by adding relocation
support to the pre-kernel and updating the kernel to be less dependent
on specific virtual memory layouts.
|
|
Instead of manually redeclaring those variables in various files this
now adds a header file for them.
|
|
|
|
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>
|
|
|
|
Building the x86_64 kernel with ENABLE_EXTRA_KERNEL_DEBUG_SYMBOLS
results in an image that is larger than 0x2000000 bytes.
|
|
We had an inconsistency in valid user addresses. is_user_range() was
checking against the kernel base address, but previous changes caused
the maximum valid user addressable range to be 32 MiB below that.
This patch stops mmap(MAP_FIXED) of a range between these two bounds
from panic-ing the kernel in RangeAllocator::allocate_specific.
|
|
By moving the PhysicalPage classes out of the kernel heap into a static
array, one for each physical page, we can avoid the added overhead and
easily find them by indexing into an array.
This also wraps the PhysicalPage into a PhysicalPageEntry, which allows
us to re-use each slot with information where to find the next free
page.
|
|
|
|
This is to make the 0xc0000000 less a magic number, and will make it
easier in the future to move the Kernel around
|
|
This also removes a lot of CPU.h includes infavor for Sections.h
|
