| /* Written 2000 by Andi Kleen */ |
| #ifndef __ARCH_DESC_H |
| #define __ARCH_DESC_H |
| |
| #include <linux/threads.h> |
| #include <asm/ldt.h> |
| |
| #ifndef __ASSEMBLY__ |
| |
| #include <linux/string.h> |
| |
| #include <asm/segment.h> |
| |
| static inline void set_tss_desc(unsigned cpu, void *addr) |
| { |
| struct desc_struct *d = get_cpu_gdt_table(cpu); |
| tss_desc tss; |
| |
| /* |
| * sizeof(unsigned long) coming from an extra "long" at the end |
| * of the iobitmap. See tss_struct definition in processor.h |
| * |
| * -1? seg base+limit should be pointing to the address of the |
| * last valid byte |
| */ |
| set_tssldt_descriptor(&tss, |
| (unsigned long)addr, DESC_TSS, |
| IO_BITMAP_OFFSET + IO_BITMAP_BYTES + sizeof(unsigned long) - 1); |
| write_gdt_entry(d, GDT_ENTRY_TSS, &tss, DESC_TSS); |
| } |
| |
| #endif /* !__ASSEMBLY__ */ |
| |
| #endif |