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Set up initial task switching (ring0 only)

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This commit is contained in:
Justin C. Miller
2018-05-18 23:55:15 -07:00
parent 0ddcf668cb
commit bfaab294e6
12 changed files with 239 additions and 45 deletions
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21
src/kernel/main.cpp
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@@ -15,6 +15,7 @@
#include "log.h"
#include "memory.h"
#include "page_manager.h"
#include "scheduler.h"
#include "screen.h"
#include "serial.h"
@@ -54,8 +55,9 @@ init_console(const popcorn_data *header)
log::enable(logs::apic, log::level::info);
log::enable(logs::device, log::level::debug);
log::enable(logs::driver, log::level::debug);
log::enable(logs::memory, log::level::debug);
log::enable(logs::memory, log::level::info);
log::enable(logs::fs, log::level::debug);
log::enable(logs::task, log::level::debug);
}
void do_error_3() { volatile int x = 1; volatile int y = 0; volatile int z = x / y; }
@@ -94,9 +96,17 @@ kernel_main(popcorn_data *header)
log::info(logs::boot, "CPU Vendor: %s", cpu.vendor_id());
log::info(logs::boot, "CPU Family %x Model %x Stepping %x",
cpu.family(), cpu.model(), cpu.stepping());
auto r = cpu.get(0x15);
addr_t cr4 = 0;
__asm__ __volatile__ ( "mov %%cr4, %0" : "=r" (cr4) );
log::info(logs::boot, "cr4: cr4", r.ecx);
log::info(logs::boot, "CPU Crystal: %dHz", r.ecx);
devices->init_drivers();
/*
block_device *disk = devices->get_block_device(0);
if (disk) {
for (int i=0; i<1; ++i) {
@@ -118,10 +128,15 @@ kernel_main(popcorn_data *header)
} else {
log::warn(logs::boot, "No block devices present.");
}
*/
// do_error_1();
// __asm__ __volatile__("int $15");
g_console.puts("boogity!");
do_the_set_registers(header);
// pager->dump_pml4();
scheduler *sched = new (&scheduler::get()) scheduler(devices->get_lapic());
sched->start();
g_console.puts("boogity!\n");
}