Justin C. Miller
799fbbdd10
_Actually_ move the kernel to the last TiB.
...
More work on process page tables, including only mapping the last 2 pml4
entries (the highest 1TiB of the address space, ie, kernel space) into a
new table.
Includes the work of actually moving the kernel there, which I had
apparently done in name only previously. Oops.
2018-09-01 14:54:12 -07:00
Justin C. Miller
bc6a42735c
Bring Intel/HP efi source into project, remove gnu-efi
2018-05-05 14:13:38 -07:00
Justin C. Miller
14f51436d7
Load ELF file with bootloader instead of flat binary
2018-04-28 02:12:08 -07:00
Justin C. Miller
7e462319c9
Fix inconsistenly-named frame_buffer_size
2018-04-24 09:50:07 -07:00
Justin C. Miller
e8866abc7a
Bootstrap in-kernel memory management
2018-04-20 02:15:56 -07:00
Justin C. Miller
3b560c063a
Move kernel to higher half.
...
Return to having the bootloader re-map the kernel into the higher
half before jumping into the kernel entrypoint, so we don't have
to juggle pointers inside the kernel.
2018-04-19 01:37:34 -07:00
Justin C. Miller
712df97dfc
Add a better boot message with version
2018-04-12 09:17:59 -07:00
Justin C. Miller
7f805fae1a
Fix only allocating one page for log
2018-04-11 10:14:13 -07:00
Justin C. Miller
067ff3af89
fix tab/spaces
2018-04-10 01:03:52 -07:00
Justin C. Miller
77cc1fe757
Move main module to c++
2018-04-08 12:44:09 -07:00
Justin C. Miller
4577c2d10c
Add the beginning of support for kernel graphics to bootloader.
...
* Load a font file off disk to pass to kernel
* Expose a framebuffer to the kernel
* Currently the kernel just paints the screen red
2018-04-01 22:48:46 -07:00
Justin C. Miller
23365b39c7
Move all guid instances into .rodata in our own list.
2018-04-01 17:06:49 -07:00
Justin C. Miller
913fb202eb
Clean up lots of debug output I no longer use.
2018-04-01 15:41:32 -07:00
Justin C. Miller
165ed28cd3
Reduce dependency on efi library functions
2018-03-31 17:32:10 -07:00
Justin C. Miller
cc01f9d260
Actually pass data pages to kernel
2018-03-27 14:50:28 -07:00
Justin C. Miller
fd32af4905
Make memory functions operate on structure type
2018-03-27 14:47:21 -07:00
Justin C. Miller
2b9a0ca15e
Create a kernel data area for passing information
2018-03-27 14:46:53 -07:00
Justin C. Miller
fd5780610b
Format using clang-format
2018-03-25 14:06:25 -07:00
Justin C. Miller
64a6d88e5c
Truly enable virtual memory.
...
Map is still identity-mapped. I think we need to sort and/or clean up
the map before using a higher half address. In-kernel vga output not
working yet, but do_the_set_registers() is getting called.
2018-03-25 13:51:32 -07:00
Justin C. Miller
e19c7cee50
Give kernel image a header.
...
Kernel image now has a header with version, magic number, and a
pointer to its actual entrypoint. Entry point is now _start in
boot.s, and we now generate versions.s in the build tree for the
version macros.
2018-03-24 18:34:44 -07:00
Justin C. Miller
d438392ed5
Formatting fixes and removed commented code only.
2018-03-23 09:04:51 -07:00
Justin C. Miller
cdef82f06f
Virtualizing memory after exiting boot services
2018-03-22 19:16:44 -07:00
Justin C. Miller
47ebdc7f41
Prematurely jumping into kernel_main
2018-03-19 17:04:35 -07:00
Justin C. Miller
72e143b93c
Bootloader loading kernel, not yet jumping to it
2018-03-18 18:07:19 -07:00
Justin C. Miller
d02e1d97d9
Splitting out UEFI bootloader code from kernel
...
Now the bootloader should be responsible for all initial setup,
loading the kernel, and then handing off to the kernel with
proper data in place.
2017-07-26 01:41:46 -07:00
