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Scheduler with working threads.

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Currently only one process but it is a start.
This commit is contained in:
Drew Galbraith 2023-05-18 13:24:02 -07:00
parent 960cbf9519
commit cb41953354
10 changed files with 136 additions and 5 deletions
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29
zion/scheduler/thread.cpp
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@ -1,5 +1,34 @@
#include "scheduler/thread.h"
#include "debug/debug.h"
#include "scheduler/process.h"
#include "scheduler/scheduler.h"
namespace {
extern "C" void thread_init() {
asm("sti");
dbgln("New Thread!");
sched::Yield();
panic("End of thread.");
}
} // namespace
Thread* Thread::RootThread(Process* root_proc) { return new Thread(root_proc); }
Thread::Thread(Process* proc, uint64_t tid) : process_(proc), id_(tid) {
uint64_t* stack = new uint64_t[512];
uint64_t* stack_ptr = stack + 511;
// 0: rip
*(stack_ptr) = reinterpret_cast<uint64_t>(thread_init);
// 1-4: rax, rcx, rdx, rbx
// 5: rbp
*(stack_ptr - 5) = reinterpret_cast<uint64_t>(stack_ptr + 1);
// 6-15: rsi, rdi, r8, r9, r10, r11, r12, r13, r14, r15
// 16: cr3
*(stack_ptr - 16) = proc->cr3();
rsp0_ = reinterpret_cast<uint64_t>(stack_ptr - 16);
}
uint64_t Thread::pid() { return process_->id(); }