diff options
| -rw-r--r-- | i386/include/mach/i386/mach_i386.defs | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/i386/include/mach/i386/mach_i386.defs b/i386/include/mach/i386/mach_i386.defs index 57f43188..b8357ccc 100644 --- a/i386/include/mach/i386/mach_i386.defs +++ b/i386/include/mach/i386/mach_i386.defs @@ -94,3 +94,19 @@ routine i386_io_perm_modify( target_task : task_t; io_perm : io_perm_t; enable : boolean_t); + +/* Modify one of a few available thread-specific segment descriptor slots. + The SELECTOR must be a value from a previous call (on any thread), + or -1 to allocate an available slot and return the segment selector for it. + These slots are copied into the CPU on each thread switch. + Returns KERN_NO_SPACE when there are no more slots available. */ +routine i386_set_gdt( + target_thread : thread_t; + inout selector : int; + desc : descriptor_t); + +/* Fetch a segment descriptor set with a prior i386_set_gdt call. */ +routine i386_get_gdt( + target_thread : thread_t; + selector : int; + out desc : descriptor_t); |