X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Kernel%2Farch%2Fx86%2Fdesctab.asm;h=43bd8e4c2eb31766db6470b20e3643fe4a748fbc;hb=e617614d9e5ca900649d584524eacef768b1f1b9;hp=bc37711bd0acc17ea234face7f3d613dd0a036e1;hpb=d52a53f035af92941c0cafe5f81888fed16d2462;p=tpg%2Facess2.git diff --git a/Kernel/arch/x86/desctab.asm b/Kernel/arch/x86/desctab.asm index bc37711b..43bd8e4c 100644 --- a/Kernel/arch/x86/desctab.asm +++ b/Kernel/arch/x86/desctab.asm @@ -13,7 +13,6 @@ GDT_SIZE equ (1+2*2+1+MAX_CPUS)*8 [section .data] ; GDT [global gGDT] -[global gGDTptr] gGDT: ; PL0 - Kernel ; PL3 - User @@ -24,22 +23,26 @@ gGDT: dd 0x0000FFFF, 0x00CFF200 ; 20 PL3 Data dd 26*4-1, 0x00408900 ; Double Fault TSS times MAX_CPUS dd 26*4-1, 0x00408900 -gGDTptr: +[global gGDTPtr] +gGDTPtr: dw GDT_SIZE-1 dd gGDT ; IDT ALIGN 8 +[global gIDT] gIDT: times 256 dd 0x00080000,0x00000F00 +[global gIDTPtr] gIDTPtr: dw 256 * 16 - 1 ; Limit dd gIDT ; Base [section .text] + [global Desctab_Install] Desctab_Install: ; Set GDT - lgdt [gGDTptr] + lgdt [gGDTPtr] mov ax, 0x10 ; PL0 Data mov ss, ax mov ds, ax @@ -144,7 +147,6 @@ Isr%1: %macro DEF_IRQ 1 [global Isr%1] Isr%1: - ;cli ; HACK! push 0 push %1 jmp IRQCommon @@ -203,12 +205,19 @@ Isr240: ; --------------------- [extern ErrorHandler] ErrorCommon: + ;xchg bx, bx pusha push ds push es push fs push gs + mov ax, 0x10 + mov ds, ax + mov es, ax + mov fs, ax + mov gs, ax + push esp call ErrorHandler add esp, 4 @@ -255,6 +264,12 @@ IRQCommon: push fs push gs + mov ax, 0x10 + mov ds, ax + mov es, ax + mov fs, ax + mov gs, ax + push esp call IRQ_Handler add esp, 4 @@ -278,6 +293,12 @@ SchedulerBase: push fs push gs + mov ax, 0x10 + mov ds, ax + mov es, ax + mov fs, ax + mov gs, ax + mov eax, [esp+12*4] ; CPU Number push eax ; Pus as argument