void vcore_entry(void)
{
uint32_t vcoreid;
static int first_time = 1; // used by vcore2
vcoreid = vcore_id();
printf("Hello from vcore_entry in vcore %d\n", vcoreid);
if ((vcoreid == 2) && first_time) {
first_time = 0;
switch (test) {
case TEST_INCREMENTAL_CHANGES:
// Testing asking for less than we already have
udelay(1000000);
printf("Asking for too few:\n");
vcore_request_more(2);
// Testing getting more while running
printf("Asking for more while running:\n");
udelay(1000000);
vcore_request_more(5);
break;
case TEST_YIELD_OUT_OF_ORDER:
printf("Core %d yielding\n", vcoreid);
sys_yield(0);
break;
case TEST_YIELD_0_OUT_OF_ORDER:
udelay(7500000);
printf("Core 0 should have yielded, asking for another\n");
vcore_request_more(5);
}
}
global_tests(vcoreid);
printf("Vcore %d Done!\n", vcoreid);
}
int main(int argc, char** argv)
{
uint32_t vcoreid;
int retval;
vcore_init();
if ((vcoreid = vcore_id())) {
printf("Should never see me! (from vcore %d)\n", vcoreid);
} else { // core 0
printf("Hello from else vcore 0\n");
printf("Multi-Goodbye, world, from PID: %d!\n", sys_getpid());
switch (test) {
case TEST_MMAP:
printf("Testing MMAP\n");
void *addr;
addr = sys_mmap((void*)USTACKTOP - 20*PGSIZE, 8*PGSIZE, 3,
MAP_FIXED | MAP_ANONYMOUS, -1, 0);
printf("got addr = 0x%08x\n", addr);
*(int*)addr = 0xdeadbeef;
*(int*)(addr + 3*PGSIZE) = 0xcafebabe;
// these should work
printf("reading addr: 0x%08x\n", *(int*)addr);
printf("reading addr+3pg: 0x%08x\n", *(int*)(addr + 3*PGSIZE));
// this should fault
printf("Should page fault and die now.\n");
*(int*)(addr - 3*PGSIZE) = 0xdeadbeef;
printf("Should not see me!!!!!!!!!!!!!!!!!!\n");
while(1);
case TEST_ONE_CORE:
retval = vcore_request(1);
printf("One core test's core0's retval: %d\n", retval);
printf("Check to see it's on a worker core.\n");
while(1);
case TEST_ASK_FOR_TOO_MANY_CORES:
retval = vcore_request(12);
printf("Asked for too many, retval: %d\n", retval);
return 0;
case TEST_INCREMENTAL_CHANGES:
retval = vcore_request(4);
break;
default:
retval = vcore_request(5);
}
if (retval)
panic("failed to allocate cores!");
printf("Should see me if you want to relocate core0's context "
"when moving from RUNNING_S\n");
}
// vcore0 only below here
switch (test) {
case TEST_YIELD_OUT_OF_ORDER:
udelay(10000000);
printf("Core 2 should have yielded, asking for another\n");
retval = vcore_request(5);
break;
case TEST_YIELD_0_OUT_OF_ORDER:
udelay(5000000);
printf("Core %d yielding\n", vcoreid);
sys_yield(0);
printf("Core 0 came back where it left off in RUNNING_M!!!\n");
break;
}
global_tests(vcoreid);
printf("Vcore %d Done!\n", vcoreid);
while (1);
return 0;
}
