gnumach/i386/i386 mp_desc.c

[Roland McGrath]

CVSROOT:        /cvsroot/hurd
Module name:    gnumach
Changes by:     Roland McGrath <address@hidden> 02/10/03 22:45:06

Modified files:
        i386/i386      : mp_desc.c 

Log message:
        2002-10-03  Roland McGrath  <address@hidden>
        
        * oskit/x86/main.c (main): BASE_TSS -> KERNEL_TSS
        * i386/i386/mp_desc.c (mp_desc_load): Likewise.
        Remove magic %gs:0 pseudo-register support.
        * i386/i386/ldt.h (USER_GS): Macro removed.
        * i386/i386/pcb.c (pcb_init): Set gs to USER_DS, not USER_GS.
        (thread_setstatus): Likewise.
        * i386/i386/mp_desc.h (struct mp_desc_table): Remove member
        `user_thread_register'.
        * i386/i386/thread.h (struct i386_machine_state): Likewise.
        * i386/i386/mp_desc.c (mp_desc_init): Don't set up USER_GS in LDT.
        * i386/i386/ldt.c (ldt_init): Likewise.
        * i386/intel/pmap.c (pmap_bootstrap): Don't give users access to
        direct-mapped pages.
        * i386/i386/user_ldt.c (i386_set_ldt): Don't cap segment limits.

CVSWeb URLs:
http://savannah.gnu.org/cgi-bin/viewcvs/gnumach/gnumach/i386/i386/mp_desc.c.diff?tr1=1.2&tr2=1.3&r1=text&r2=text

Patches:
Index: gnumach/i386/i386/mp_desc.c
diff -u gnumach/i386/i386/mp_desc.c:1.2 gnumach/i386/i386/mp_desc.c:1.3
--- gnumach/i386/i386/mp_desc.c:1.2     Mon May 27 19:01:50 2002
+++ gnumach/i386/i386/mp_desc.c Thu Oct  3 22:45:06 2002
@@ -142,12 +142,6 @@
                        sizeof(struct task_tss) - 1,
                        ACC_P|ACC_PL_K|ACC_TSS, 0);
 
-               /* Fix the LDT's entry for USER_GS to point into
-                  our CPU-specific structure.  */
-               fill_descriptor(&mpt->ldt[sel_idx(USER_GS)],
-                               kvtolin(&mpt->user_thread_register),
-                               3, ACC_P|ACC_PL_U|ACC_DATA_W, SZ_32);
-
                /*
                 * Set the %gs segment register to point at
                 * a word containing the cpu number.
@@ -207,10 +201,10 @@
   set_idt(&pdesc);
 
   /* Make sure the TSS isn't marked busy.  */
-  mpt->gdt[BASE_TSS / 8].access &= ~ACC_TSS_BUSY;
+  mpt->gdt[KERNEL_TSS / 8].access &= ~ACC_TSS_BUSY;
 
   /* Load the TSS.  */
-  set_tr(BASE_TSS);
+  set_tr(KERNEL_TSS);
 }