7 Commits

Author	SHA1	Message	Date
Justin C. Miller	cef0a71bce	Use uintptr_t instead of addr_t ... They're never actually going to change independently, and it's also brining in kutil headers more places than they should be.	2018-09-20 09:37:30 -07:00
Justin C. Miller	482b9f50fc	Initial process waiting/waking ... Processes can now wait on signals/children/time. There is no clock currently so "time" is just a monotonically increating tick count. Added a SLEEP syscall to test this waiting/waking.	2018-09-16 12:22:52 -07:00
Justin C. Miller	1308864061	MSR and syscall changes ... - Moved MSR code to separate files with an enum class - Implemented syscall_enable in C++ using new MSR calls	2018-09-15 00:37:49 -07:00
Justin C. Miller	62c559043d	Pause syscall and int 0xee interrupt syscalls ... The syscall/sysret instructions don't swap stacks. This was bad but passable until syscalls caused the scheduler to run, and scheduling a task that paused due to interrupt. Adding a new (hopefully temporary) syscall interrupt `int 0xee` to allow me to test syscalls without stack issues before I tackle the syscall/sysret issue. Also implemented a basic `pause` syscall that causes the calling process to become unready. Because nothing can wake a process yet, it never returns.	2018-09-12 20:59:08 -07:00
Justin C. Miller	fafe582802	Initial priority-based scheduler ... - Scheduler now has multiple linked_lists of processes at different priorities - Process structure improvements - scheduler::tick() and scheduler::schedule() separation	2018-09-11 22:37:00 -07:00
Justin C. Miller	3a39d9440a	Made syscall ids 64 bits in rax	2018-09-07 10:29:22 -07:00
Justin C. Miller	3f264b4490	Add syscall enum, clean up handler debug prints	2018-09-05 22:49:56 -07:00