int VEObj::init_existed()
{
int rc;
vzctl_env_status_t env_status;
if (vzctl2_get_env_status(ctid(), &env_status, ENV_STATUS_ALL))
return putErr(MIG_ERR_SYSTEM, MIG_MSG_NOSTATUS);
if (!(env_status.mask & ENV_STATUS_EXISTS))
return putErr(MIG_ERR_NOEXIST, MIG_MSG_NOEXIST, ctid());
/* TODO: move to upper level */
if (isOptSet(OPT_COPY) && (env_status.mask & ENV_STATUS_SUSPENDED))
return putErr(MIG_ERR_SUSPEND, MIG_MSG_CLONE_FORBIDDEN_FOR_SUSPENDED);
if ((rc = ve_data_load(m_ctid, &ve_data)))
return rc;
root = ve_data.root;
priv = ve_data.priv;
/* get VELAYOUT version */
layout = vzctl2_env_layout_version((char *)priv);
if (layout >= VZCTL_LAYOUT_5) {
init_disks(ve_data);
}
/* get veformat */
if ((veformat = vzctl2_get_veformat(priv)) == -1) {
return putErr(MIG_ERR_VZCTL, "vzctl2_get_veformat(%s): %s",
priv, vzctl2_get_last_error());
}
return 0;
}
int kmain(unsigned int magic,multibootInfo *mb)
{
construct(); //construct the global objects
char ans;
cout<<"Nano OS is booting\n";
String::strcpy(boot_dev,(const char *)mb->bootDevice);
memend=mb->memoryUpper*1024+0x100000; //memory end upper memory in bytes +1MB
// well now show the world we have managed our Memory ;)
multiboot *m_boot;
m_boot=multiboot::Instance();
m_boot->set_multiboot_info(mb);
m_boot->set_multiboot_hdr();
cout<<"===============================\n";
cout<<"Available Memory : "<<(unsigned int)m_boot->get_mem_avail()/1024<<"\n";
cout<<" Used Memory : "<<(unsigned int)m_boot->get_mem_used()/1024<<"\n";
cout<<"===============================\n";
cout.flags(hex|showbase);
cout<<"Kernel start "<<(unsigned int)m_boot->get_k_start()<<" Kernel end "<<(unsigned int)m_boot->get_k_end() \
<<" kernel length ="<<(unsigned int)m_boot->get_k_length()<<"\n";
cout.flags(dec);
kend = m_boot->get_k_end();
// Before we do any thing we should initialize our Heap based memory allocator( Thanks to Chris Giese )
init_heap();
// Setup our Descriptor tables GDT and IDT
cout<<"Setting up GDT ";
GDT::setup();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
cout<<"setting up IDT ";
IDT::setup();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
// After our IDT is loaded We should install our interrupt
cout<<"setting up IRQ subsystem ";
IRQ::setup();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
// Now, as our IRQ subsystem is set we should install keyboard sothat, our system will be interractive.
cout<<"installing key board \n";
kbd::setup();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
// The operating system and the digital computers are worthless if there is no timer
// so install and initialize the timer
cout<<"installing timer interrupt ";
TIMER *my_timer = TIMER::Instance();
my_timer->setup();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
cout<<"my_timer at "<<(unsigned int)my_timer<<"\n";
cout<<"Mboot at "<<(unsigned int)m_boot<<"\n";
// So all the basic systems are in place now
// We should initialize the PCI subsystem
cout<<"Scanning PCI...\n";
pci_bus *sys_pci_bus=pci_bus::Instance();
sys_pci_bus->scan();
sys_pci_bus->list_dev();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
// now we can start our interrupt system
cout<<"\n\n"<<"Enabling Interrupts ";
enable();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
// now check if we have any PCI IDE
cout<<"Initilizing storage susbsystem(PCI-IDE) ";
init_disks();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
cout<<"Initializing Net device...";
detect_netdev();
cout.SetColour(RED,BLACK,0);
cout<<"done\n";
cout.SetColour(WHITE,BLACK,0);
//cout<<"\nDone\n";
//here let us try our Network ethernet device setup
//sys_nic0->send_arp_request();
//cout<<"net init complete\n";
//cout<<"sending\n";
//for(int i=0;i<10;i++)
// test_req_arp();
// show which IRQs are installed not necessary but it comes handy while debugging the ISRs.
//cout<<"\n"<<"Dumping IRQ routines \n";
//IRQ::dump_irq_routines();
// Our tasks are thread implemented in kernel and it depends on timer interrupt
// so now we can start the tasking subsystem
//cout<<"Initializing tasking ";
//init_tasks();
// bellow this we should not see anything.. why? because in the tasks we started 2 threads
// one idle thread and other is our Shell
//cout<<"done\n";
init_syscall();
my_test();
for(;;);
cout<<"\nReached End of kernel\n shoud not happen \n\nGOODBYE\n";
disable();
halt();
return 0;
}
void XHDIDriver::reset()
{
close_disks();
init_disks();
}
XHDIDriver::XHDIDriver()
{
init_disks();
}
