| swtch.s (46548) | swtch.s (47081) |
|---|---|
| 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 19 unchanged lines hidden (view full) --- 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * | 1/*- 2 * Copyright (c) 1990 The Regents of the University of California. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to Berkeley by 6 * William Jolitz. 7 * 8 * Redistribution and use in source and binary forms, with or without --- 19 unchanged lines hidden (view full) --- 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * |
| 36 * $Id: swtch.s,v 1.79 1999/04/28 01:03:25 luoqi Exp $ | 36 * $Id: swtch.s,v 1.80 1999/05/06 09:44:49 bde Exp $ |
| 37 */ 38 39#include "npx.h" 40#include "opt_user_ldt.h" 41#include "opt_vm86.h" 42 43#include <sys/rtprio.h> 44 --- 232 unchanged lines hidden (view full) --- 277 /* update common_tss.tss_esp0 pointer */ 278 movl %ecx, _common_tss + TSS_ESP0 279 280#ifdef VM86 281 movl _cpuid, %esi 282 btrl %esi, _private_tss 283 jae 1f 284 | 37 */ 38 39#include "npx.h" 40#include "opt_user_ldt.h" 41#include "opt_vm86.h" 42 43#include <sys/rtprio.h> 44 --- 232 unchanged lines hidden (view full) --- 277 /* update common_tss.tss_esp0 pointer */ 278 movl %ecx, _common_tss + TSS_ESP0 279 280#ifdef VM86 281 movl _cpuid, %esi 282 btrl %esi, _private_tss 283 jae 1f 284 |
| 285 movl $GPROC0_SEL, %esi | |
| 286 movl $gd_common_tssd, %edi 287 addl %fs:0, %edi 288 289 /* move correct tss descriptor into GDT slot, then reload tr */ | 285 movl $gd_common_tssd, %edi 286 addl %fs:0, %edi 287 288 /* move correct tss descriptor into GDT slot, then reload tr */ |
| 290 leal _gdt(,%esi,8), %ebx /* entry in GDT */ | 289 movl _tss_gdt, %ebx /* entry in GDT */ |
| 291 movl 0(%edi), %eax 292 movl %eax, 0(%ebx) 293 movl 4(%edi), %eax 294 movl %eax, 4(%ebx) | 290 movl 0(%edi), %eax 291 movl %eax, 0(%ebx) 292 movl 4(%edi), %eax 293 movl %eax, 4(%ebx) |
| 295 shll $3, %esi /* GSEL(entry, SEL_KPL) */ | 294 movl $GPROC0_SEL*8, %esi /* GSEL(entry, SEL_KPL) */ |
| 296 ltr %si 2971: 298#endif /* VM86 */ 299 300 sti 301 302 /* 303 * XXX callers of cpu_switch() do a bogus splclock(). Locking should --- 94 unchanged lines hidden (view full) --- 398 /* update common_tss.tss_esp0 pointer */ 399 movl %esp, _common_tss + TSS_ESP0 400 401#ifdef VM86 402 movl $0, %esi 403 btrl %esi, _private_tss 404 jae 1f 405 | 295 ltr %si 2961: 297#endif /* VM86 */ 298 299 sti 300 301 /* 302 * XXX callers of cpu_switch() do a bogus splclock(). Locking should --- 94 unchanged lines hidden (view full) --- 397 /* update common_tss.tss_esp0 pointer */ 398 movl %esp, _common_tss + TSS_ESP0 399 400#ifdef VM86 401 movl $0, %esi 402 btrl %esi, _private_tss 403 jae 1f 404 |
| 406 movl $GPROC0_SEL, %esi | |
| 407 movl $_common_tssd, %edi 408 409 /* move correct tss descriptor into GDT slot, then reload tr */ | 405 movl $_common_tssd, %edi 406 407 /* move correct tss descriptor into GDT slot, then reload tr */ |
| 410 leal _gdt(,%esi,8), %ebx /* entry in GDT */ | 408 movl _tss_gdt, %ebx /* entry in GDT */ |
| 411 movl 0(%edi), %eax 412 movl %eax, 0(%ebx) 413 movl 4(%edi), %eax 414 movl %eax, 4(%ebx) | 409 movl 0(%edi), %eax 410 movl %eax, 0(%ebx) 411 movl 4(%edi), %eax 412 movl %eax, 4(%ebx) |
| 415 shll $3, %esi /* GSEL(entry, SEL_KPL) */ | 413 movl $GPROC0_SEL*8, %esi /* GSEL(entry, SEL_KPL) */ |
| 416 ltr %si 4171: 418#endif /* VM86 */ 419 420 sti 421 422 /* 423 * XXX callers of cpu_switch() do a bogus splclock(). Locking should --- 236 unchanged lines hidden (view full) --- 660 jae 3f 661#ifdef SMP 662 movl $gd_common_tssd, %edi 663 addl %fs:0, %edi 664#else 665 movl $_common_tssd, %edi 666#endif 6672: | 414 ltr %si 4151: 416#endif /* VM86 */ 417 418 sti 419 420 /* 421 * XXX callers of cpu_switch() do a bogus splclock(). Locking should --- 236 unchanged lines hidden (view full) --- 658 jae 3f 659#ifdef SMP 660 movl $gd_common_tssd, %edi 661 addl %fs:0, %edi 662#else 663 movl $_common_tssd, %edi 664#endif 6652: |
| 668 movl $GPROC0_SEL, %esi | |
| 669 /* move correct tss descriptor into GDT slot, then reload tr */ | 666 /* move correct tss descriptor into GDT slot, then reload tr */ |
| 670 leal _gdt(,%esi,8), %ebx /* entry in GDT */ | 667 movl _tss_gdt, %ebx /* entry in GDT */ |
| 671 movl 0(%edi), %eax 672 movl %eax, 0(%ebx) 673 movl 4(%edi), %eax 674 movl %eax, 4(%ebx) | 668 movl 0(%edi), %eax 669 movl %eax, 0(%ebx) 670 movl 4(%edi), %eax 671 movl %eax, 4(%ebx) |
| 675 shll $3, %esi /* GSEL(entry, SEL_KPL) */ | 672 movl $GPROC0_SEL*8, %esi /* GSEL(entry, SEL_KPL) */ |
| 676 ltr %si 6773: 678#endif /* VM86 */ 679 movl P_VMSPACE(%ecx), %ebx 680#ifdef SMP 681 movl _cpuid, %eax 682#else 683 xorl %eax, %eax --- 138 unchanged lines hidden --- | 673 ltr %si 6743: 675#endif /* VM86 */ 676 movl P_VMSPACE(%ecx), %ebx 677#ifdef SMP 678 movl _cpuid, %eax 679#else 680 xorl %eax, %eax --- 138 unchanged lines hidden --- |