#DPATCHLEVEL=0 2001-10-07 Marcus Brinkmann * i386/i386/iopb.c (iopb_create, i386_io_port_add): Disable io permissions by default. 2004-11-16 Guillem Jover * i386/i386/ktss.c (ktss_init): Disable io permissions by default. --- i386/i386/iopb.c Tue Feb 25 22:27:09 1997 +++ i386/i386/iopb.c Sun Oct 7 05:00:09 2001 @@ -270,7 +270,7 @@ register iopb_tss_t ts; ts = (iopb_tss_t) kalloc(sizeof (struct iopb_tss)); - io_tss_init(ts, TRUE); /* XXX */ + io_tss_init(ts, FALSE); return ts; } @@ -357,7 +360,7 @@ simple_unlock(&iopb_lock); new_io_tss = (iopb_tss_t) kalloc(sizeof(struct iopb_tss)); - io_tss_init(new_io_tss, TRUE); /* XXX */ + io_tss_init(new_io_tss, FALSE); goto Retry; } --- i386/i386/ktss.c 25 Feb 1997 21:27:10 -0000 1.1.1.1 +++ i386/i386/ktss.c 16 Nov 2004 06:55:28 -0000 @@ -44,7 +44,7 @@ /* Initialize the master TSS descriptor. */ fill_gdt_descriptor(KERNEL_TSS, - kvtolin(&ktss), sizeof(ktss)+65536/8+1-1, + kvtolin(&ktss), sizeof(ktss)-1, ACC_PL_K|ACC_TSS, 0); /* Initialize the master TSS. */ @@ -52,9 +52,6 @@ ktss.esp0 = (unsigned)(exception_stack+1024); ktss.io_bit_map_offset = sizeof(ktss); - /* Set the last byte in the I/O bitmap to all 1's. */ - ((unsigned char*)&ktss)[sizeof(ktss)+65536/8] = 0xff; - /* Load the TSS. */ ltr(KERNEL_TSS); }