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Diffstat (limited to 'results/classifier/deepseek-2/output/hypervisor/1838913')
| -rw-r--r-- | results/classifier/deepseek-2/output/hypervisor/1838913 | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/results/classifier/deepseek-2/output/hypervisor/1838913 b/results/classifier/deepseek-2/output/hypervisor/1838913 new file mode 100644 index 000000000..6ce7c83f9 --- /dev/null +++ b/results/classifier/deepseek-2/output/hypervisor/1838913 @@ -0,0 +1,27 @@ + +Single-step exceptions incorrectly routed to EL1 when ELD is EL2 (TDE = 1) (qemu version 3.1) + +Hi, + +I've been encountering issues with QEMU 3.1 when trying to single-step EL1 code, with ELD = EL2 (MDCR_EL2.TDE = 1). I could test with latest commit in a few hours, if you want. + +EL1 is Aarch64. + +These happen as soon as MDSCR_EL1.SS is set to 1 and ERET is executed: + +1) Single-step exceptions are generated even if they should not be (SPSR_EL2.SS = 0) + +2) Single-step exceptions are routed to EL1 + +Exception return from AArch64 EL2 to AArch64 EL1 PC 0x4000005c +Taking exception 1 [Undefined Instruction] +...from EL1 to EL1 +...with ESR 0x32/0xca000022 +...with ELR 0x4000005c +...to EL1 PC 0x200 PSTATE 0x3c5 + +EC 0x32 (0b110010) is Exception_SoftwareStepLowerEl. + +You can find enclosed minimal code (and resulting .elf) for reproduction. + +qemu-system-aarch64 -nographic -machine virt,virtualization=on -d unimp,int -cpu cortex-a57 -kernel test_hyp.elf \ No newline at end of file |