3873 commits

Author	SHA1	Message	Date
Andreas Kling	3649638259	Add Regions concept to Task.	2018-10-18 14:55:20 +02:00
Andreas Kling	5b10846bed	Add a simple ELF binary called _test.o to the test fs.	2018-10-18 13:16:30 +02:00
Andreas Kling	f67d695254	More paging stuff. ... The test userspace process now runs at linear address 0x300000 which is mapped to a dynamically allocated page from the MemoryManager. Cool!	2018-10-18 13:05:00 +02:00
Andreas Kling	89851a9ded	Use FileHandle from VFS.	2018-10-18 10:28:09 +02:00
Andreas Kling	9d5de91cf3	Actually destroy tasks after they crash.	2018-10-18 00:26:30 +02:00
Andreas Kling	1a801e5737	Hang if we GPF in ring 0.	2018-10-18 00:13:06 +02:00
Andreas Kling	56c1f9db8e	A userspace process can now GPF and the OS goes on! ... This is really rickety, but it kinda sorta works for my test GPF!	2018-10-17 23:49:32 +02:00
Andreas Kling	77299cf54d	Add basic paging. Only identity maps the bottom 4MB as a start.	2018-10-17 23:13:55 +02:00
Andreas Kling	286e27ef40	Allow running in QEMU with "./run q" ... The kernel doesn't run in QEMU right now and I don't know why.	2018-10-17 16:58:35 +02:00
Andreas Kling	8ff394f83f	Fix a dumb in buffer_putch.	2018-10-17 16:56:47 +02:00
Andreas Kling	9aa88fe186	Add a PIC::getISR() helper.	2018-10-17 16:54:49 +02:00
Andreas Kling	e0f31d38a2	Add -fno-pic -fno-pie to build flags.	2018-10-17 16:49:30 +02:00
Andreas Kling	f82b25d4f9	Fix some minor build warnings.	2018-10-17 16:48:43 +02:00
Andreas Kling	39fa1eb2c2	Print the contents of motd.txt on boot.	2018-10-17 12:07:39 +02:00
Andreas Kling	705832f387	List the root directory after mounting /. ... So cool that it works! It's spewing out a bunch of terminal escape sequences that the OS console obviously doesn't support, but we'll get there too.	2018-10-17 11:47:14 +02:00
Andreas Kling	b05ed591ab	VFS mounts an ext2fs root! :^)	2018-10-17 11:44:06 +02:00
Andreas Kling	d2425495ca	VirtualFileSystem class builds inside Kernel.	2018-10-17 11:40:58 +02:00
Andreas Kling	9171521752	Integrate ext2 from VFS into Kernel.	2018-10-17 10:57:23 +02:00
Andreas Kling	aec8ab0a60	Add the basic character devices to kernel.	2018-10-16 14:33:16 +02:00
Andreas Kling	12e515735b	Add a simple IDEDiskDevice class that implements DiskDevice from VFS.	2018-10-16 14:17:43 +02:00
Andreas Kling	72bb80a9ae	These changes were lying around uncommitted in the old repo. ... I'm just gonna commit them without too much thinking and then take it from there.	2018-10-16 11:06:35 +02:00
Andreas Kling	87d41bdca4	If an interrupt comes from the slave PIC, both PICs need an EOI.	2018-10-16 11:05:29 +02:00
Andreas Kling	9396108034	Import the "gerbert" kernel I worked on earlier this year. ... It's a lot crappier than I remembered it. It's gonna need a lot of work.	2018-10-16 11:02:00 +02:00