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Author	SHA1	Message	Date
Kevin Lim	36581a5342	Faults generated at fetch are passed to the backend by creating a dummy nop instruction and giving it the fault. This unifies front end faults and normal instruction faults. cpu/checker/cpu.cc: Fixups for fetch fault being sent with the instruction. cpu/o3/fetch_impl.hh: cpu/ozone/front_end_impl.hh: Send any faults generated at fetch along with a fake nop instruction to the back end. This avoids having to use direct communication to check if the entire front end has drained; it is naturally handled through the nop's fault being handled when it reaches the head of commit. cpu/ozone/front_end.hh: Add extra status TrapPending. cpu/ozone/lw_back_end_impl.hh: Fetch fault handled through a dummy nop carrying the fetch fault. Avoid putting Nops on the exeList. --HG-- extra : convert_revision : 8d9899748b34c204763a49c48a9b5113864f5789	2006-05-17 14:25:10 -04:00
Kevin Lim	c23b23f4e7	Add in checker. Supports dynamically verifying the execution of instructions, as well as limited amount of control path verification. It will verify anything within the program, but anything external (traps, interrupts, XC) it assumes is redirected properly by the CPU. Similarly it assumes the results of store conditionals, uncached loads, and instructions marked as "unverifiable" are correct from the CPU. base/traceflags.py: build/SConstruct: cpu/SConscript: cpu/cpu_models.py: Add in Checker. cpu/base.cc: Add in checker support. Also XC status starts off as suspended. cpu/base.hh: Add in checker. --HG-- extra : convert_revision : 091b5cc83e837858adb681ef0137a0beb30bd1b2	2006-05-16 13:59:29 -04:00

Author

SHA1

Message

Date

Kevin Lim

36581a5342

Faults generated at fetch are passed to the backend by creating a dummy nop instruction and giving it the fault. This unifies front end faults and normal instruction faults.

cpu/checker/cpu.cc:
    Fixups for fetch fault being sent with the instruction.
cpu/o3/fetch_impl.hh:
cpu/ozone/front_end_impl.hh:
    Send any faults generated at fetch along with a fake nop instruction to the back end.  This avoids having to use direct communication to check if the entire front end has drained; it is naturally handled through the nop's fault being handled when it reaches the head of commit.
cpu/ozone/front_end.hh:
    Add extra status TrapPending.
cpu/ozone/lw_back_end_impl.hh:
    Fetch fault handled through a dummy nop carrying the fetch fault.

    Avoid putting Nops on the exeList.

--HG--
extra : convert_revision : 8d9899748b34c204763a49c48a9b5113864f5789

2006-05-17 14:25:10 -04:00

Kevin Lim

c23b23f4e7

Add in checker. Supports dynamically verifying the execution of instructions, as well as limited amount of control path verification. It will verify anything within the program, but anything external (traps, interrupts, XC) it assumes is redirected properly by the CPU. Similarly it assumes the results of store conditionals, uncached loads, and instructions marked as "unverifiable" are correct from the CPU.

base/traceflags.py:
build/SConstruct:
cpu/SConscript:
cpu/cpu_models.py:
    Add in Checker.
cpu/base.cc:
    Add in checker support.  Also XC status starts off as suspended.
cpu/base.hh:
    Add in checker.

--HG--
extra : convert_revision : 091b5cc83e837858adb681ef0137a0beb30bd1b2

2006-05-16 13:59:29 -04:00

2 commits