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menuet02 tls

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git-svn-id: svn://kolibrios.org@1220 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Sergey Semyonov (Serge)
2009-10-19 19:45:30 +00:00
parent c2b5a1b2a8
commit b7c98dff1b
6 changed files with 121 additions and 38 deletions
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25
kernel/trunk/core/sched.inc
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@@ -162,21 +162,36 @@ do_change_task:
;scratched: eax,ecx,esi
mov esi,ebx
xchg esi,[current_slot]
; set new stack after saving old
; set new stack after saving old
mov [esi+APPDATA.saved_esp], esp
mov esp, [ebx+APPDATA.saved_esp]
; set new thread io-map
; set new thread io-map
Mov dword [page_tabs+((tss._io_map_0 and -4096) shr 10)],eax,[ebx+APPDATA.io_map]
Mov dword [page_tabs+((tss._io_map_1 and -4096) shr 10)],eax,[ebx+APPDATA.io_map+4]
; set new thread memory-map
; set new thread memory-map
mov ecx, APPDATA.dir_table
mov eax, [ebx+ecx] ;offset>0x7F
cmp eax, [esi+ecx] ;offset>0x7F
je @f
mov cr3, eax
@@: ; set tss.esp0
@@:
; set tss.esp0
Mov [tss._esp0],eax,[ebx+APPDATA.saved_esp0]
; set gs selector unconditionally
mov edx, [ebx+APPDATA.tls_base]
cmp edx, [esi+APPDATA.tls_base]
je @f
mov [tls_data_l+2],dx
shr edx,16
mov [tls_data_l+4],dl
mov [tls_data_l+7],dh
mov dx, app_tls
mov fs, dx
@:
; set gs selector unconditionally
Mov gs,ax,graph_data
; set CR0.TS
cmp bh, byte[fpu_owner] ;bh == incoming task (new)