Hi all, this code in head.S as follows * Enable paging 111 */ 112 3: 113 movl $swapper_pg_dir-__PAGE_OFFSET,%eax 114 movl %eax,%cr3 /* set the page table pointer.. */ 115 movl %cr0,%eax 116 orl $0x80000000,%eax 117 movl %eax,%cr0 /* ..and set paging (PG) bit */ 118 jmp 1f /* flush the prefetch-queue */ 119 1: 120 movl $1f,%eax 121 jmp *%eax /* make sure eip is relocated */ 122 1: as written this code is for enable paging by setting cr3 register but making jump to *%eax at last instruction what it means? might be once it sets the page table and then when it making jmp *%eax it uses the page table so that it jumps now to virtual address of that label means kernel image at 3GB address can anybody plz give the detail of above code? possibly of each line thanks __________________________________ Do you Yahoo!? Yahoo! Mail SpamGuard - Read only the mail you want. http://antispam.yahoo.com/tools -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
