*//* need this before calling reserve_initrd */if(max_pfn>(1UL<<(32-PAGE_SHIFT)))max_low_pfn=e820_end_of_low_ram_pfn();// 计算系统中小于4G的最大物理页框号elsemax_low_pfn=max_pfn;high_memory=(void*)__va(max_pfn*PAGE_SIZE-1)+1;#endif...memblock_set_current_limit(ISA_END_...
phys_addmax_low_pfn*PAGE_SIZE; ++j)¸ { set_pmd(pmd, __pmd(phys_addr | pgprot_val(__pgprot(0x1e3)));¸ /*0x1e3==Present, Accessed, Dirty, Read/Write, 文档格式: .ppt 文档大小: 430.5K 文档页数: 85页 顶/踩数: 0/0 收藏...