linux/arch/sparc
David S. Miller 9b02605826 sparc64: Kill bogus TPC/address truncation during 32-bit faults.
This builds upon eeabac7386
("sparc64: Validate kernel generated fault addresses on sparc64.")

Upon further consideration, we actually should never see any
fault addresses for 32-bit tasks with the upper 32-bits set.

If it does every happen, by definition it's a bug.  Whatever
context created that fault would only have that fault satisfied
if we used the full 64-bit address.  If we truncate it, we'll
always fault the wrong address and we'll always loop faulting
forever.

So catch such conditions and mark them as errors always.  Log
the error and fail the fault.

Signed-off-by: David S. Miller <davem@davemloft.net>
2009-02-03 16:28:23 -08:00
..
boot
configs
include/asm sparc64: Implement NMI watchdog on capable cpus. 2009-01-30 00:03:53 -08:00
kernel sparc: fixup for sparseirq changes 2009-02-02 22:14:28 -08:00
lib
math-emu
mm sparc64: Kill bogus TPC/address truncation during 32-bit faults. 2009-02-03 16:28:23 -08:00
oprofile sparc64: Implement NMI watchdog on capable cpus. 2009-01-30 00:03:53 -08:00
prom
Kconfig
Kconfig.debug
Makefile