linux-sg2042/arch/s390
Gerald Schaefer 482b05dd53 [S390] Fixed handling of access register mode faults.
Replaced check_user_space() + __check_access_register with the new
check_space(). The old functions made wrong assumptions about kernel
and user space when the kernel and user address spaces are switched
(kernel in home space, user in primary/secondary space).
Secondly the user process can switch to the accress register mode if
it is running in primary or secondary mode. In addition it can load
an arbitrary value to the access registers. If any other value than
0 for primary space or 1 for secondary space is loaded and memory
is accessed using the base register related to the access register,
the program should be terminated with a SIGSEGV. To achieve that the
DUALD pointer in the DUCT and the PSALD pointer in the PASTE need
to point to an array of 8 invalid access-list entries to get a
ALEN-translation exception if an invalid alet is used.

Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-03-05 23:35:54 +01:00
..
appldata [PATCH] sysctl: remove insert_at_head from register_sysctl 2007-02-14 08:09:59 -08:00
boot [PATCH] use ${CROSS_COMPILE}installkernel in arch/*/boot/install.sh 2005-06-23 09:45:07 -07:00
crypto [S390] Support for s390 Pseudo Random Number Generator 2007-02-05 21:18:22 +01:00
hypfs [PATCH] mark struct file_operations const 2 2007-02-12 09:48:44 -08:00
kernel [S390] Fixed handling of access register mode faults. 2007-03-05 23:35:54 +01:00
lib [S390] prevent softirqs if delay is called disabled 2007-02-21 10:55:00 +01:00
math-emu [S390] Calibrate delay and bogomips. 2007-02-05 21:18:31 +01:00
mm [S390] Fixed handling of access register mode faults. 2007-03-05 23:35:54 +01:00
oprofile [PATCH] s390: add oprofile callgraph support 2006-01-06 08:33:50 -08:00
Kconfig [S390] nss: disable kexec. 2007-03-05 23:35:45 +01:00
Kconfig.debug [PATCH] lockdep: irqtrace subsystem, s390 support 2006-07-03 15:27:03 -07:00
Makefile [S390] Replace $(ARCH) macros in Makefile 2007-02-21 10:55:46 +01:00
defconfig [S390] update default configuration 2007-02-21 10:54:57 +01:00