int CwxTss::regTss(CwxTss* pThrEnv)
{
if (!m_bInit)
{
if (0 != initTss()) return -1;
}
void* pObj = pthread_getspecific(m_tssKey);
if (pObj) delete ((CwxTss*)pObj);
return pthread_setspecific(m_tssKey, pThrEnv);
}
CwxTss* CwxTss::instance()
{
if (!m_bInit)
{
if (0 != initTss()) return NULL;
}
void * pObj = NULL;
pObj = pthread_getspecific(m_tssKey);
if (!pObj)
{
pObj = new CwxTss();
regTss((CwxTss*)pObj);
}
return (CwxTss*)pObj;
}
void kernelMain(void) {
putStr("\nstarting kernel\n");
initGdt();
initTss();
initIdt();
putStr("mapping the first 2M with va = pa\n");
for (uint32_t p = 0; p < 0x200000; p += 4096) {
vmm_map(p,p);
}
CHECK((getcr0() & 0x80000000) == 0);
putStr("about to enable paging\n");
vmm_on();
CHECK((getcr0() & 0x80000000) != 0);
CHECK (vmm_pa(0xf0000000) == 0xffffffff);
uint32_t pa = vmm_frame();
vmm_map(0xf0000000, pa);
CHECK (vmm_pa(0xf0000000) != 0xffffffff);
CHECK ((vmm_pa(0xf0000123) & 0xfff) == 0x123);
CHECK(vmm_dirty(0xf0000000) == 0);
CHECK(vmm_accessed(0xf0000000) == 0);
CHECK(peek(0xf0000000) == 0);
CHECK(vmm_dirty(0xf0000000) == 0);
CHECK(vmm_accessed(0xf0000000) == 1);
poke(0xf0000000, 0x12345678);
CHECK(peek(0xf0000000) == 0x12345678);
CHECK(vmm_dirty(0xf0000000) == 1);
CHECK(vmm_accessed(0xf0000000) == 1);
CHECK(vmm_dirty(0xe0000000) == 0);
CHECK(vmm_accessed(0xe0000000) == 0);
CHECK(vmm_pa(0x40000000) == 0xffffffff);
vmm_map(0xe0000000, pa);
CHECK(peek(0xe0000000) == 0x12345678);
CHECK(vmm_dirty(0xe0000000) == 0);
CHECK(vmm_accessed(0xe0000000) == 1);
CHECK(peek(0x44444444) == 0);
CHECK(vmm_dirty(0x44444000) == 0);
CHECK(vmm_accessed(0x44443000) == 0);
CHECK(vmm_accessed(0x44444000) == 1);
CHECK(vmm_accessed(0x44445000) == 0);
poke(0x88888888,0x88888888);
CHECK(peek(0x88888888) == 0x88888888);
vmm_map(0xccccc000, vmm_pa(0x88888000));
CHECK(peek(0xccccc888) == 0x88888888);
CHECK (vmm_pa(0xccccc666) == vmm_pa(0x88888666));
vmm_unmap(0xccccc000);
CHECK(peek(0xccccc888) == 0);
CHECK(peek(0x88888888) == 0x88888888);
shutdown();
}
