Subversion Repositories HelenOS

Rev

Rev 3104 | Rev 3902 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 3104 Rev 3209
Line 153... Line 153...
153 
       
 153 
       
154 
        /*
 154 
        /*
155 
         * Prepare new GDT for CPU in question.
 155 
         * Prepare new GDT for CPU in question.
156 
         */
 156 
         */
157 
        gdt_new = (struct descriptor *) malloc(GDT_ITEMS *
 157 
        gdt_new = (struct descriptor *) malloc(GDT_ITEMS *
158 
            sizeof(struct descriptor), FRAME_ATOMIC);
 158 
            sizeof(struct descriptor), FRAME_ATOMIC | FRAME_LOW_4_GiB);
159 
        if (!gdt_new)
 159 
        if (!gdt_new)
160 
            panic("couldn't allocate memory for GDT\n");
 160 
            panic("couldn't allocate memory for GDT\n");
161 
 
 161 
 
162 
        memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor));
 162 
        memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor));
163 
        memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0);
 163 
        memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0);