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Diffstat (limited to 'results/classifier/zero-shot/108/other/1500')
| -rw-r--r-- | results/classifier/zero-shot/108/other/1500 | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/results/classifier/zero-shot/108/other/1500 b/results/classifier/zero-shot/108/other/1500 new file mode 100644 index 000000000..a8f5667ef --- /dev/null +++ b/results/classifier/zero-shot/108/other/1500 @@ -0,0 +1,53 @@ +graphic: 0.789 +device: 0.769 +debug: 0.682 +permissions: 0.675 +socket: 0.597 +vnc: 0.589 +PID: 0.528 +semantic: 0.515 +network: 0.514 +files: 0.504 +boot: 0.441 +KVM: 0.414 +performance: 0.259 +other: 0.241 + +Some system/debug regisiters are inconsistent with real device in qemu-system-arm +Description of problem: +We used differential testing to compared the instruction consistency (ARMv7) between QEMU and raspberry pi 2B in system level and some inconsistency in system regisiter was detected. + +1. CCSIDR--Cache Size ID Registers + + **Inconsistency** + + - CCSIDR in QEMU: 0x701fe00a--Associativity: 2, Number of sets:256 + + - CCSIDR in Raspi2B: 0x700fe01a--Associativity: 4, Number of sets:128 + + **Tested Instruction sample** + + - MRC_T1A1_A 11101110001100000000111100010000 0xee300f10 + + According to ARMv7 Manual B4.1.19 encoding, the NumSets and Associativity are set different bewteen QEMU when emulating raspi2b and raspi2b. + + The CCSIDR is set in the function`cortex_a7_initfn(Object *obj)` in target/arm/cpu_tcg.c for cortex_a7. + +2. DBGDRAR--Debug ROM Address Register + + **Inconsistency** + + - DBGDRAR in QEMU: 0x0 --Invalid + + - DBGDRAR in Raspi2B: 0x40020003--Valid + + According to ARMv7 Manual C11.11.16 encoding, the DBGDRAR in qemu is invalid. + + **Tested Instruction sample** + + - MRC_T1A1_A 11101110000100010001111000010000 0xee111e10 +Steps to reproduce: +1. Compile a kernel module to run the test instruction in PL1. +2. Use kgdb to get the register info +Additional information: + |