freebsd-src/sys/i386
Søren Schmidt 65e925d16f 1. Avoid a race in scclose(). tty.c has kludges so that the race is
actually harmless.

2. Fixed code to match comment in scintr().

3. Don't allow even root to take control of the machine when securelevel > 0.
   I've secured the accesses to PSL_IOPL in all drivers and asked pst to
   review it, but he seems to be busy.  Write access to /dev/kmem and
   other critival devices currently leaks across raisings of securelevel
   via open fd's, so there may as well be a similar leak for PSL_IOPL.

4. (Most important.)  Don't corrupt memory beyond the screen buffers if
   the cursor happens to be off the 80x25 screen when syscons starts.

5. Fix console cursor update (not perfect yet).
Submitted by:   bruce
~
1996-11-11 22:21:03 +00:00
..
apm APM_DSVALUE_BUS is no longer with the addition of the correct fix to 1996-09-07 17:41:22 +00:00
bios APM_DSVALUE_BUS is no longer with the addition of the correct fix to 1996-09-07 17:41:22 +00:00
boot Preserve %esi and %edi for get_diskinfo(). See the logs for similar fixes 1996-11-11 14:27:12 +00:00
conf Removed (now unused) XT_KEYBOARD option. 1996-11-11 22:04:31 +00:00
eisa Clean up the memory mapped/Programmed I/O stuff so that the driver completely 1996-11-11 05:21:27 +00:00
i386 Replaced I586_OPTIMIZED_BCOPY and I586_OPTIMIZED_BZERO with boot-time 1996-11-11 20:39:03 +00:00
ibcs2 Cleaned up all headers that include <sys/ioctl.h> or <sys/ioccom.h>: 1996-09-21 14:59:43 +00:00
include Support the PG_G flag on Pentium-Pro processors. This pretty 1996-11-11 04:20:19 +00:00
isa 1. Avoid a race in scclose(). tty.c has kludges so that the race is 1996-11-11 22:21:03 +00:00
linux Add audio mixer ioctls. 1996-11-05 02:04:37 +00:00
pci More merge and update. 1996-10-30 22:41:46 +00:00
scsi Fixed pessimized (short) i/o port type. 1996-11-11 15:29:15 +00:00
Makefile