MCI_ADDR_PHYSADDR
pfn = (p->mce_addr & MCI_ADDR_PHYSADDR) >> PAGE_SHIFT;
pfn = (p->mce_addr & MCI_ADDR_PHYSADDR) >> PAGE_SHIFT;
pfn = (mce->addr & MCI_ADDR_PHYSADDR) >> PAGE_SHIFT;
spa = mce->addr & MCI_ADDR_PHYSADDR;
res.addr = mce->addr & MCI_ADDR_PHYSADDR;