int sys_DebugPrint( const char *fmt, char **pzArgs )
{
if ( SysBase )
{
Thread_s *psThread = CURRENT_THREAD;
char String[512];
char zBuffer[1024];
uint32 nFlg;
nFlg = cli();
if ( NULL != psThread )
{
Process_s *psProc;
if ( ( psProc = CURRENT_PROC ) )
{
sprintf( String, "%d:%s::%s : %s", get_processor_id(), psProc->tc_zName, psThread->tr_zName, fmt );
}
else
{
sprintf( String, "%d:%s : %s", get_processor_id(), psThread->tr_zName, fmt );
}
}
else
{
sprintf( String, "%d : %s", get_processor_id(), fmt );
}
put_cpu_flags( nFlg );
sprintf( zBuffer, String, pzArgs[0], pzArgs[1], pzArgs[2], pzArgs[3], pzArgs[4], pzArgs[5], pzArgs[6], pzArgs[7], pzArgs[8], pzArgs[9], pzArgs[10], pzArgs[11], pzArgs[12] );
debug_write( zBuffer, strlen( zBuffer ) );
}
return ( 0 );
}
static int do_call_v86( Virtual86Struct_s * psState, SysCallRegs_s * psCallRegs )
{
Virtual86State_s sState;
Thread_s *psThread = CURRENT_THREAD;
int nFlags;
nFlags = cli(); /* Will be reset when we exit to v86 mode */
atomic_inc( &psThread->tr_nInV86 );
while ( get_processor_id() != g_nBootCPU )
{
printk( "do_call_v86() wrong CPU (%d), will schedule\n", get_processor_id() );
Schedule();
}
//printk( "Enter v86\n" );
memcpy( &sState.regs, &psState->regs, sizeof( sState.regs ) );
sState.regs32 = psCallRegs; // (SysCallRegs_s*) &psState;
sState.psRegs16 = &psState->regs;
if ( NULL == g_psFirstV86State )
{
unprotect_dos_mem();
}
sState.psNext = g_psFirstV86State;
g_psFirstV86State = &sState;
sState.regs.__null_ds = 0;
sState.regs.__null_es = 0;
sState.regs.__null_fs = 0;
sState.regs.__null_gs = 0;
sState.regs.eflags = sState.regs32->eflags | EFLG_VM;
sState.regs.eflags &= ~EFLG_IOPL;
sState.regs32->eax = 0;
sState.pSavedStack = psThread->tr_pESP0;
psThread->tr_pESP0 = ( void * )&sState.VM86_TSS_ESP0;
g_asProcessorDescs[get_processor_id()].pi_sTSS.esp0 = psThread->tr_pESP0;
__asm__ __volatile__( "movl %0,%%esp\n\t" "jmp ret_from_sys_call": /* no outputs */
:"r"( &sState.regs ) );
/* we never return here */
return ( 0 );
}
static inline jboolean remote_unblock(ThreadDesc * cpuState)
{
int result;
sched_dprintf(DEBUG_2, "CPU%d: unblocking Thread:%p on remote CPU %d\n", get_processor_id(), cpuState,
cpuState->curCpuId);
smp_call_function(cpuState->curCpuId, _cpuManager_unblock, cpuState, 1, &result);
return (jboolean) result;
}
static inline void return_to_32bit( Virtual86Regs_s * regs16, int retval )
{
Thread_s *psThread = CURRENT_THREAD;
SysCallRegs_s *psCallerRegs;
int nGS;
cli(); /* Will be reset when we return to caller */
nGS = g_asProcessorDescs[get_processor_id()].pi_nGS;
__asm__ __volatile__( "mov %0,%%gs"::"r"( nGS ) );
set_gdt_desc_base( nGS, ( uint32 )psThread->tr_pThreadData );
__asm__ __volatile__( "movl %0,%%gs\n\t" : /* no outputs */
:"r"( nGS ) );
if ( NULL == g_psFirstV86State )
{
printk( "ERROR : return_to_32bit() called while g_psFirstV86State == NULL! Propably game over :(\n" );
return;
}
memcpy( g_psFirstV86State->psRegs16, regs16, sizeof( *regs16 ) );
g_psFirstV86State->regs32->eax = retval;
psCallerRegs = g_psFirstV86State->regs32;
psThread->tr_pESP0 = g_psFirstV86State->pSavedStack;
g_asProcessorDescs[get_processor_id()].pi_sTSS.esp0 = psThread->tr_pESP0;
g_psFirstV86State = g_psFirstV86State->psNext;
kassertw( get_processor_id() == g_nBootCPU );
if ( NULL == g_psFirstV86State )
{
protect_dos_mem();
}
atomic_dec( &psThread->tr_nInV86 );
psCallerRegs->eax = retval;
__asm__ __volatile__( "movl %0,%%esp\n\t" "jmp exit_from_sys_call"::"r"( psCallerRegs ) );
}
void APIC_error_interrupt(void) // called from "error_apic"
{
unsigned long v, v1;
v = apic_read(APIC_ESR);
apic_write(APIC_ESR, 0);
v1 = apic_read(APIC_ESR);
ack_APIC_irq();
/* Here is what the APIC error bits mean:
0: Send CS error
1: Receive CS error
2: Send accept error
3: Receive accept error
4: Reserved
5: Send illegal vector
6: Received illegal vector
7: Illegal register address
*/
printf("APIC error: %02lx(%02lx): \"", v, v1);
if (v1 & 0x01)
printf("Send CS error");
if (v1 & 0x02)
printf("Receive CS error");
if (v1 & 0x04)
printf("Send accept error");
if (v1 & 0x08)
printf("Receive accept error");
if (v1 & 0x10)
printf("Reserved");
if (v1 & 0x20)
printf("Send illegal vector");
if (v1 & 0x40)
printf("Received illegal vector");
if (v1 & 0x80)
printf("Illegal register addres");
printf("\" on CPU%d\n", get_processor_id());
sys_panic("APIC error on CPU%d\n", get_processor_id());
}
int printk( const char *fmt, ... )
{
#ifdef _ENABLE_PRINTK
Thread_s *psThread = CURRENT_THREAD;
char String[512];
char zBuffer[1024];
int nFlg;
if ( SysBase == NULL )
{
return ( 0 );
}
nFlg = cli();
if ( NULL != psThread )
{
Process_s *psProc;
if ( ( psProc = CURRENT_PROC ) )
{
sprintf( String, "%d:%s::%s : %s", get_processor_id(), psProc->tc_zName, psThread->tr_zName, fmt );
}
else
{
sprintf( String, "%s : %s", psThread->tr_zName, fmt );
}
}
else
{
sprintf( String, "%d : %s", get_processor_id(), fmt );
}
put_cpu_flags( nFlg );
sprintf( zBuffer, String, ( ( uint32 * )( &fmt ) )[1], ( ( uint32 * )( &fmt ) )[2], ( ( uint32 * )( &fmt ) )[3], ( ( uint32 * )( &fmt ) )[4], ( ( uint32 * )( &fmt ) )[5], ( ( uint32 * )( &fmt ) )[6], ( ( uint32 * )( &fmt ) )[7], ( ( uint32 * )( &fmt ) )[8], ( ( uint32 * )( &fmt ) )[9], ( ( uint32 * )( &fmt ) )[10], ( ( uint32 * )( &fmt ) )[11], ( ( uint32 * )( &fmt ) )[12] );
debug_write( zBuffer, strlen( zBuffer ) );
#endif
return ( 0 );
}
void enable_local_APIC(void)
{
unsigned long value;
// Clear the logical destination ID
value = apic_read(APIC_LDR);
value &= 0x00ffffff; // Dest = 0
apic_write(APIC_LDR, value);
/* Set Task Priority to 'accept all' */
value = apic_read(APIC_TASKPRI);
value &= 0xffffff00;
apic_write(APIC_TASKPRI, value);
// bring the APIC into flat delivery mode.
value = apic_read(APIC_DFR);
value |= 0xf0000000; // bits 28-31 = 1111 -> flat mode
apic_write(APIC_DFR, value);
/* now enable APIC */
value = apic_read(APIC_SPIV);
value |= (1 << 8); /* Enable APIC (bit==1) */
// value &= ~(1<<9); /* Enable focus processor (bit==0) */
value |= (1 << 9); /* Disable focus processor (bit==1) */
value |= SPURIOUS_APIC_VECTOR; /* Set spurious IRQ vector to 0xff */
apic_write(APIC_SPIV, value);
/* setup LVTERR on integrated APICs */
if ((lapic_version[get_processor_id()] & 0xF0) != APIC_VER_82489DX) { /* !82489DX */
unsigned int value, maxlvt;
maxlvt = GET_APIC_MAXLVT(apic_read(APIC_VERSION));
if (maxlvt > 3)
apic_write(APIC_ESR, 0);
value = apic_read(APIC_ESR);
/*smp_debug_printf(SMP_DEBUG_ALL, "ESR value before enabling vector: %08lx\n", value); */
value = ERROR_APIC_VECTOR;
apic_write(APIC_LVERR, value);
/* clear errors after enabling vector */
if (maxlvt > 3)
apic_write(APIC_ESR, 0);
value = apic_read(APIC_ESR);
/*smp_debug_printf(SMP_DEBUG_ALL, "ESR value after enabling vector: %08lx\n", value); */
} else
/*smp_debug_printf(SMP_DEBUG_ALL, "No ESR for 82489DX.\n"); */
;
}
/* needs only one Parameter */
static inline jboolean _cpuManager_unblock(ThreadDesc * cpuState)
{
jboolean ret;
#ifdef KERNEL
# ifdef SMP
if (cpuState->curCpuId != get_processor_id())
return remote_unblock(cpuState);
else
# endif
{
//jint* base = (u4_t*)&cpuState-2;
DISABLE_IRQ;
/*printf("CPU%d: unblock %p\n",get_processor_id(), cpuState); */
if (cpuState->state != STATE_BLOCKEDUSER) {
#ifdef DEBUG
/*
printf("CPU%d: CPUManager::unblock: Thread %p is in state %d (%s)\n", get_processor_id(), cpuState,
cpuState->state, get_state(cpuState));
*/
#endif
//printStackTrace("STACK: ", curthr(), base);
ret = JNI_FALSE;
} else {
threadunblock(cpuState);
ret = JNI_TRUE;
}
RESTORE_IRQ;
return ret;
}
#else
DISABLE_IRQ;
if (cpuState->state == STATE_BLOCKEDUSER) {
locked_threadunblock(cpuState);
ret = JNI_TRUE;
} else {
#ifdef DEBUG
/*
printf("CPUManager::unblock: Thread %p is in state %d (%s)\n", cpuState, cpuState->state, get_state(cpuState));
*/
#endif
ret = JNI_FALSE;
}
RESTORE_IRQ;
return ret;
#endif
}
int reflect_irq_to_realmode( SysCallRegs_s * psCallRegs, int num )
{
pgd_t *pPgd = pgd_offset( g_psKernelSeg, 0 );
pte_t *pPte = pte_offset( pPgd, 0 );
Virtual86Struct_s sRegs;
uint32 *pIntVects = NULL;
uint32 *pnStack;
uint32 nFlags;
num &= 0xff;
memset( &sRegs, 0, sizeof( sRegs ) );
nFlags = cli();
kassertw( get_processor_id() == g_nBootCPU );
// We need access to the first page to read the IVT
PTE_VALUE( *pPte ) |= PTE_PRESENT;
flush_tlb_page( 0 );
sRegs.regs.eip = pIntVects[num] & 0xffff;
sRegs.regs.cs = pIntVects[num] >> 16;
pnStack = ( uint32 * )( ( v86Stack_seg << 4 ) + v86Stack_off );
pnStack[0] = 0xffffffff;
sRegs.regs.esp = v86Stack_off;
sRegs.regs.ss = v86Stack_seg;
v86Stack_off -= V86_STACK_SIZE;
put_cpu_flags( nFlags );
call_v86( &sRegs );
// do_call_v86( &sRegs, psCallRegs );
v86Stack_off += V86_STACK_SIZE;
return ( 0 );
}
/* Shut down the current CPU */
void __cpu_disable(void)
{
unsigned int cpu = get_processor_id();
local_irq_disable();
gic_disable_cpu();
/* Allow any queued timer interrupts to get serviced */
local_irq_enable();
mdelay(1);
local_irq_disable();
/* It's now safe to remove this processor from the online map */
cpumask_clear_cpu(cpu, &cpu_online_map);
if ( cpu_disable_scheduler(cpu) )
BUG();
smp_mb();
/* Return to caller; eventually the IPI mechanism will unwind and the
* scheduler will drop to the idle loop, which will call stop_cpu(). */
}
void set_processor_device(struct device *device)
{
if (device == NULL)
return;
int processors_count = get_processors_count(); //returns at least 1;
struct device *processors[processors_count];
int i;
for (i = 0; i < processors_count; i++) {
processors[i] = new_device("Processor");
add_info(processors[i], get_processor_family(i));
add_info(processors[i], get_processor_version(i));
add_info(processors[i], get_processor_socket_designation(i));
add_info(processors[i], get_processor_manufacturer(i));
add_info(processors[i], get_processor_id(i));
add_info(processors[i], get_processor_voltage(i));
add_info(processors[i], get_processor_external_clock(i));
set_child(device, processors[i]);
}
set_caches(processors, processors_count);
set_cores(processors, processors_count);
}
/**
* wrapper for the AS stateless relay script function.
*
*/
static int w_as_relay_sl(struct sip_msg *msg, char *as_name, char *foo)
{
as_msg_p my_as_ev=0;
int ret=0,len;
char *buffer=0,processor_id;
struct as_entry *as;
as=(struct as_entry *)as_name;
if(as->type==AS_TYPE){
if((processor_id=get_processor_id(&msg->rcv,&(as->u.as)))<0){
LM_ERR("no processor found for packet with dst port:%d\n",msg->rcv.dst_port);
goto error;
}
}else if (as->type==CLUSTER_TYPE) {
LM_ERR("clustering not fully implemented\n");
goto error;
}else{
LM_ERR("unknown type of as\n");
goto error;
}
LM_DBG("as found ! (%.*s) processor id = %d\n",as->name.len,as->name.s,processor_id);
if(!(buffer=create_as_event_sl(msg,processor_id,&len,0))){
LM_ERR("unable to create event code\n");
goto error;
}
if(!(my_as_ev=shm_malloc(sizeof(as_msg_t))))
goto error;
my_as_ev->msg = buffer;
my_as_ev->as = as;
my_as_ev->type = SL_REQ_IN;
my_as_ev->len = len;
my_as_ev->transaction=seas_f.tmb.t_gett(); /*does not refcount*/
if(use_stats)
as_relay_stat(seas_f.tmb.t_gett());
again:
ret=write(write_pipe,&my_as_ev,sizeof(as_msg_p));
if(ret==-1){
if(errno==EINTR)
goto again;
else if(errno==EPIPE){
LM_ERR("SEAS Event Dispatcher has closed the pipe. Invalidating it !\n");
return -2;
/** TODO handle this correctly !!!*/
}
}
//this shouln't be here, because it will remove the transaction from memory, but
//if transaction isn't unref'ed iw will be released anyway at t_unref if kr (killreason)==0
// a wait timer will be put to run with WT_TIME_OUT (5 seconds, within which the AS should respond)
// this is a bug !!! I think this is why we lose calls at high load !!
//t_release(msg, 0, 0);
seas_f.tmb.t_setkr(REQ_FWDED);
ret=0;
return ret;
error:
if(my_as_ev)
shm_free(my_as_ev);
if(buffer)
shm_free(buffer);
return ret;
}
/**
* wrapper for the AS transaction-stateful relay script function.
*
*/
static int w_as_relay_t(struct sip_msg *msg, char *entry, char *foo)
{
as_msg_p my_as_ev;
int new_tran,ret=0,len;
char *buffer,processor_id;
struct cell *mycel;
struct as_entry *as;
static str msg100={"Your call is important to us",sizeof("Your call is important to us")-1};
static str msg500={"Server Internal Error!",sizeof("Server Internal Error!")-1};
buffer=(char*)0;
my_as_ev=(as_msg_p)0;
/**
* returns <0 on error
* 1 if (new transaction was created) or if (ACK for locally replied 200 with totag) or if (ACK for code>=300)
* 0 if it was a retransmission
*/
new_tran = seas_f.tmb.t_newtran(msg);
if(new_tran<0) {
ret = new_tran;
goto done;
}
/*retransmission: script processing should be stopped*/
if (new_tran==0 && !(msg->REQ_METHOD==METHOD_ACK)){
ret = 0;
goto done;
}
/*new transaction created, let's pass it to an APP SERVER*/
if (msg->REQ_METHOD==METHOD_INVITE )
{
LM_DBG("new INVITE\n");
if(!seas_f.tmb.t_reply(msg,100,&msg100)){
LM_DBG("t_reply (100)\n");
goto error;
}
}
as=(struct as_entry *)entry;
if(!as->connected){
LM_ERR("app server %.*s not connected\n",as->name.len,as->name.s);
goto error;
}
if(as->type==AS_TYPE){
if((processor_id=get_processor_id(&msg->rcv,&(as->u.as)))<0){
LM_ERR("no processor found for packet with dst port:%d\n",msg->rcv.dst_port);
goto error;
}
}else if(as->type==CLUSTER_TYPE){
LM_ERR("clustering not fully implemented\n");
return 0;
}else{
LM_ERR("unknown type of as (neither cluster nor as)\n");
return -1;
}
LM_DBG("as found ! (%.*s) processor id = %d\n",as->name.len,as->name.s,processor_id);
if(new_tran==1 && msg->REQ_METHOD==METHOD_ACK){
/* core should forward statelessly (says t_newtran)*/
LM_DBG("forwarding statelessly !!!\n");
if(!(buffer=create_as_event_sl(msg,processor_id,&len,0))){
LM_ERR("create_as_event_sl() unable to create event code\n");
goto error;
}
}else if(!(buffer=create_as_event_t(seas_f.tmb.t_gett(),msg,processor_id,&len,0))){
LM_ERR("unable to create event code\n");
goto error;
}
if(!(my_as_ev=shm_malloc(sizeof(as_msg_t)))){
LM_ERR("Out of shared mem!\n");
goto error;
}
my_as_ev->msg = buffer;
my_as_ev->as = as;
my_as_ev->type = T_REQ_IN;
my_as_ev->len = len;
my_as_ev->transaction=seas_f.tmb.t_gett(); /*does not refcount*/
if(use_stats && new_tran>0)
as_relay_stat(seas_f.tmb.t_gett());
again:
ret=write(write_pipe,&my_as_ev,sizeof(as_msg_p));
if(ret==-1){
if(errno==EINTR)
goto again;
else if(errno==EPIPE){
LM_ERR("SEAS Event Dispatcher has closed the pipe. Invalidating it !\n");
goto error;
/** TODO handle this correctly !!!*/
}
}
seas_f.tmb.t_setkr(REQ_FWDED);
ret=0;
done:
return ret;
error:
mycel=seas_f.tmb.t_gett();
if(mycel && mycel!=T_UNDEFINED){
if(!seas_f.tmb.t_reply(msg,500,&msg500)){
LM_ERR("t_reply (500)\n");
}
}
if(my_as_ev)
shm_free(my_as_ev);
if(buffer)
shm_free(buffer);
return ret;
}
int sys_realint( int num, struct RMREGS *rm )
{
pgd_t *pPgd = pgd_offset( g_psKernelSeg, 0 );
pte_t *pPte = pte_offset( pPgd, 0 );
Thread_s *psThread = CURRENT_THREAD;
Virtual86Struct_s sRegs;
uint32 *pIntVects = NULL;
uint32 *pnStack;
uint32 nFlags;
sRegs.regs.eax = rm->EAX;
sRegs.regs.orig_eax = rm->EAX;
sRegs.regs.ebx = rm->EBX;
sRegs.regs.ecx = rm->ECX;
sRegs.regs.edx = rm->EDX;
sRegs.regs.edi = rm->EDI;
sRegs.regs.esi = rm->ESI;
sRegs.regs.ebp = rm->EBP;
sRegs.regs.eflags = rm->flags;
sRegs.regs.ds = rm->DS;
sRegs.regs.es = rm->ES;
sRegs.regs.fs = rm->FS;
sRegs.regs.gs = rm->GS;
nFlags = cli();
// We need access to the first page to read the IVT
PTE_VALUE( *pPte ) |= PTE_PRESENT;
flush_tlb_page( 0 );
sRegs.regs.eip = pIntVects[num] & 0xffff;
sRegs.regs.cs = pIntVects[num] >> 16;
//printk( "sys_realint(%d) -> %04x:%04lx\n", num, sRegs.regs.cs, sRegs.regs.eip );
atomic_inc( &psThread->tr_nInV86 );
kassertw( atomic_read( &psThread->tr_nInV86 ) == 1 );
while ( get_processor_id() != g_nBootCPU )
{
// printk( "sys_call_v86() wrong CPU (%d), will schedule\n", get_processor_id() );
Schedule();
}
pnStack = ( uint32 * )( ( v86Stack_seg << 4 ) + v86Stack_off );
pnStack[0] = 0xffffffff;
sRegs.regs.esp = v86Stack_off;
sRegs.regs.ss = v86Stack_seg;
v86Stack_off -= V86_STACK_SIZE;
put_cpu_flags( nFlags );
call_v86( &sRegs );
v86Stack_off += V86_STACK_SIZE;
atomic_dec( &psThread->tr_nInV86 );
rm->EAX = sRegs.regs.eax;
rm->EBX = sRegs.regs.ebx;
rm->ECX = sRegs.regs.ecx;
rm->EDX = sRegs.regs.edx;
rm->EDI = sRegs.regs.edi;
rm->ESI = sRegs.regs.esi;
rm->EBP = sRegs.regs.ebp;
rm->flags = sRegs.regs.eflags;
rm->DS = sRegs.regs.ds;
rm->ES = sRegs.regs.es;
rm->FS = sRegs.regs.fs;
rm->GS = sRegs.regs.gs;
return ( 0 );
}
