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Diff for /src/sys/arch/i386/i386/locore.S between version 1.25 and 1.25.2.1

version 1.25, 2004/03/26 19:05:33 version 1.25.2.1, 2004/04/16 07:58:34
Line 1775  ENTRY(cpu_switch)
Line 1775  ENTRY(cpu_switch)
         movl    PCB_EBP(%edi),%ebp          movl    PCB_EBP(%edi),%ebp
   
         /* Switch TSS. Reset "task busy" flag before loading. */          /* Switch TSS. Reset "task busy" flag before loading. */
           movl    %cr3,%eax
           movl    %eax,PCB_CR3(%edi)
 #ifdef MULTIPROCESSOR  #ifdef MULTIPROCESSOR
         movl    CPUVAR(GDT),%eax          movl    CPUVAR(GDT),%eax
 #else  #else
Line 1925  switch_exited:
Line 1927  switch_exited:
         jnz     switch_restored          jnz     switch_restored
 #endif  #endif
   
           /* Switch TSS. Reset "task busy" flag before loading. */
           movl    %cr3,%eax
           movl    %eax,PCB_CR3(%esi) /* XXX should be done by pmap_activate? */
 #ifdef MULTIPROCESSOR  #ifdef MULTIPROCESSOR
         movl    CPUVAR(GDT),%eax          movl    CPUVAR(GDT),%eax
 #else  #else
Line 1933  switch_exited:
Line 1938  switch_exited:
 #endif  #endif
         movl    L_MD_TSS_SEL(%edi),%edx          movl    L_MD_TSS_SEL(%edi),%edx
   
         /* Switch TSS. Reset "task busy" flag before loading. */  
         andl    $~0x0200,4(%eax,%edx, 1)          andl    $~0x0200,4(%eax,%edx, 1)
         ltr     %dx          ltr     %dx
   
Line 2078  ENTRY(cpu_exit)
Line 2082  ENTRY(cpu_exit)
         movl    PCB_ESP(%esi),%esp          movl    PCB_ESP(%esi),%esp
         movl    PCB_EBP(%esi),%ebp          movl    PCB_EBP(%esi),%ebp
   
         /* Load TSS info. */          /* Switch TSS. Reset "task busy" flag before loading. */
           movl    %cr3,%eax
           movl    %eax,PCB_CR3(%esi)
 #ifdef MULTIPROCESSOR  #ifdef MULTIPROCESSOR
         movl    CPUVAR(GDT),%eax          movl    CPUVAR(GDT),%eax
 #else  #else
Line 2086  ENTRY(cpu_exit)
Line 2092  ENTRY(cpu_exit)
         movl    _C_LABEL(gdt),%eax          movl    _C_LABEL(gdt),%eax
 #endif  #endif
   
         /* Switch TSS. */  
         andl    $~0x0200,4-SEL_KPL(%eax,%edx,1)          andl    $~0x0200,4-SEL_KPL(%eax,%edx,1)
         ltr     %dx          ltr     %dx
   

Legend:
Removed from v.1.25  
changed lines
  Added in v.1.25.2.1

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