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2009-09-11microblaze: Trap if QEMU finds an unknown insns.Edgar E. Iglesias1-0/+6
If PVR settings enable illegal insn trap, trap when QEMU finds an insn it knows nothing about. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-11microblaze: Correct prio between MMU and unaligned exceptions.Edgar E. Iglesias1-6/+25
The microblaze gives MMU faults priority. For stores we still have a flaw that the value leaks to memory in the case of an unaligned exception. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-11microblaze: HW Exception fixes.Edgar E. Iglesias2-19/+21
* Correct PVR checks for masking off individual exceptions. * Correct FPU exception code. * Set EAR on unaligned and unassigned exceptions. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-04microblaze: Trap on illegal load/store sizes.Edgar E. Iglesias1-0/+13
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-04microblaze: Correct FPU decoding masks.Edgar E. Iglesias1-2/+2
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Compute masks for alignment checks at translation time.Edgar E. Iglesias2-15/+6
Thanks to Blue Swirl for reporting. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Trap on bus accesses to unmapped areas.Edgar E. Iglesias2-0/+30
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: MMU shows more respect to synthesis config.Edgar E. Iglesias3-6/+67
The microblaze MMU can be synthesized in different configurations. Have the MMU model show more respect to the chosen configuration. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Trap on unaligned data accesses.Edgar E. Iglesias3-2/+45
Untested... Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Trap on divizions by zero.Edgar E. Iglesias2-2/+6
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Correct mfs into r0.Edgar E. Iglesias1-0/+4
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Catch illegal insns and privilege violations.Edgar E. Iglesias2-1/+111
Raise illegal instruction exceptions when executing instructions that require units not available on the particulare microblaze configuration. Also trap priviliege violations made by userspace. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Add infrastructure for supporting hw exceptions.Edgar E. Iglesias2-3/+49
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Clear exception in dslot ESR bit if not in dslot.Edgar E. Iglesias1-0/+1
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-09-03microblaze: Correct MMU debug log.Edgar E. Iglesias1-1/+1
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-08-24cleanup cpu-exec.c, part 0/N: consolidate handle_cpu_signalNathan Froyd1-0/+1
handle_cpu_signal is very nearly copy-paste code for each target, with a few minor variations. This patch sets up appropriate defaults for a generic handle_cpu_signal and provides overrides for particular targets that did things differently. Fixing things like the persistent (XXX: use sigsetjmp) should now become somewhat easier. Previous comments on this patch suggest that the "activate soft MMU for this block" comments refer to defunct functionality. I have removed such blocks for the appropriate targets in this patch. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16Update to a hopefully more future proof FSF addressBlue Swirl8-16/+8
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-05-27microblaze: Make writes to MMU_ZPR flush the TLB.Edgar E. Iglesias1-0/+7
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-27microblaze: Correct typo.Edgar E. Iglesias1-1/+1
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26microblaze: Add petalogix s3a1800dsp MMU linux ref-design.Edgar E. Iglesias1-0/+11
This setup was designed by petalogix and is supported by upstream linux. The design targets a xilinx spartan-3a-1800 dsp board with MMU. Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26microblaze: Add MMU emulation.Edgar E. Iglesias2-0/+338
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
2009-05-26microblaze: Add translation routines.Edgar E. Iglesias7-0/+2305
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
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