| 132,6 → 132,20 |
|---|
| ; set gs selector unconditionally |
| Mov ax, graph_data |
| Mov gs, ax |
| ; TS flag is not triggered by AVX* instructions, therefore |
| ; we have to xsave/xrstor SIMD registers each task change |
| bt [cpu_caps+(CAPS_OSXSAVE/32)*4], CAPS_OSXSAVE mod 32 |
| jnc .no_xsave |
| mov ecx, [esi+APPDATA.fpu_state] |
| mov eax, [xsave_eax] |
| mov edx, [xsave_edx] |
| xsave [ecx] |
| mov ecx, [CURRENT_TASK] |
| mov [fpu_owner], ecx |
| mov ecx, [current_slot] |
| mov ecx, [ecx+APPDATA.fpu_state] |
| xrstor [ecx] |
| .no_xsave: |
| ; set CR0.TS |
| cmp bh, byte[fpu_owner] ;bh == incoming task (new) |
| clts ;clear a task switch flag |