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DOn't allow I/O register access in process 1 (oops).

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dg 1994-09-05 05:20:29 +00:00
parent ce650b4117
commit 3a5d4c8bde
3 changed files with 6 additions and 18 deletions
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8
sys/amd64/amd64/locore.S
View File

@ -34,7 +34,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* from: @(#)locore.s 7.3 (Berkeley) 5/13/91 * from: @(#)locore.s 7.3 (Berkeley) 5/13/91
* $Id: locore.s,v 1.23 1994/09/04 00:33:00 davidg Exp $ * $Id: locore.s,v 1.24 1994/09/04 19:59:13 pst Exp $
*/ */
/* /*
@ -535,16 +535,12 @@ reloc_gdt:
call _init386 /* wire 386 chip for unix operation */ call _init386 /* wire 386 chip for unix operation */
popl %esi popl %esi
#if 0
movl $0,_PTD
#endif
.globl __ucodesel,__udatasel .globl __ucodesel,__udatasel
pushl $0 /* unused */ pushl $0 /* unused */
pushl __udatasel /* ss */ pushl __udatasel /* ss */
pushl $0 /* esp - filled in by execve() */ pushl $0 /* esp - filled in by execve() */
pushl $0x3200 /* eflags (ring 3, int enab) */ pushl $PSL_USERSET /* eflags (ring 0, int enab) */
pushl __ucodesel /* cs */ pushl __ucodesel /* cs */
pushl $0 /* eip - filled in by execve() */ pushl $0 /* eip - filled in by execve() */
subl $(12*4),%esp /* space for rest of registers */ subl $(12*4),%esp /* space for rest of registers */

8
sys/amd64/amd64/locore.s
View File

@ -34,7 +34,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* from: @(#)locore.s 7.3 (Berkeley) 5/13/91 * from: @(#)locore.s 7.3 (Berkeley) 5/13/91
* $Id: locore.s,v 1.23 1994/09/04 00:33:00 davidg Exp $ * $Id: locore.s,v 1.24 1994/09/04 19:59:13 pst Exp $
*/ */
/* /*
@ -535,16 +535,12 @@ reloc_gdt:
call _init386 /* wire 386 chip for unix operation */ call _init386 /* wire 386 chip for unix operation */
popl %esi popl %esi
#if 0
movl $0,_PTD
#endif
.globl __ucodesel,__udatasel .globl __ucodesel,__udatasel
pushl $0 /* unused */ pushl $0 /* unused */
pushl __udatasel /* ss */ pushl __udatasel /* ss */
pushl $0 /* esp - filled in by execve() */ pushl $0 /* esp - filled in by execve() */
pushl $0x3200 /* eflags (ring 3, int enab) */ pushl $PSL_USERSET /* eflags (ring 0, int enab) */
pushl __ucodesel /* cs */ pushl __ucodesel /* cs */
pushl $0 /* eip - filled in by execve() */ pushl $0 /* eip - filled in by execve() */
subl $(12*4),%esp /* space for rest of registers */ subl $(12*4),%esp /* space for rest of registers */

8
sys/i386/i386/locore.s
View File

@ -34,7 +34,7 @@
* SUCH DAMAGE. * SUCH DAMAGE.
* *
* from: @(#)locore.s 7.3 (Berkeley) 5/13/91 * from: @(#)locore.s 7.3 (Berkeley) 5/13/91
* $Id: locore.s,v 1.23 1994/09/04 00:33:00 davidg Exp $ * $Id: locore.s,v 1.24 1994/09/04 19:59:13 pst Exp $
*/ */
/* /*
@ -535,16 +535,12 @@ reloc_gdt:
call _init386 /* wire 386 chip for unix operation */ call _init386 /* wire 386 chip for unix operation */
popl %esi popl %esi
#if 0
movl $0,_PTD
#endif
.globl __ucodesel,__udatasel .globl __ucodesel,__udatasel
pushl $0 /* unused */ pushl $0 /* unused */
pushl __udatasel /* ss */ pushl __udatasel /* ss */
pushl $0 /* esp - filled in by execve() */ pushl $0 /* esp - filled in by execve() */
pushl $0x3200 /* eflags (ring 3, int enab) */ pushl $PSL_USERSET /* eflags (ring 0, int enab) */
pushl __ucodesel /* cs */ pushl __ucodesel /* cs */
pushl $0 /* eip - filled in by execve() */ pushl $0 /* eip - filled in by execve() */
subl $(12*4),%esp /* space for rest of registers */ subl $(12*4),%esp /* space for rest of registers */