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Diffstat (limited to 'results/classifier/gemma3:12b/kernel/2662')
| -rw-r--r-- | results/classifier/gemma3:12b/kernel/2662 | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/results/classifier/gemma3:12b/kernel/2662 b/results/classifier/gemma3:12b/kernel/2662 new file mode 100644 index 000000000..c925cdaa5 --- /dev/null +++ b/results/classifier/gemma3:12b/kernel/2662 @@ -0,0 +1,12 @@ + +powerpc: MSR_ILE bit must not be restored in rfi +Description of problem: +On processors that implement the MSR_ILE bit (that is, G4 and prior), the MSR_ILE bit is not restored by the `rfi` instruction. + +qemu, however, does restore this bit from `srr1`. + +Some ppcel operating systems rely on MSR_ILE not being restored by `rfi`, for example, Windows NT when taking a syscall. +Additional information: +Patch provided: [rfi_msr_ile.patch](/uploads/aa661fc8bcbb47585ff63f8e4ebb38ba/rfi_msr_ile.patch) + +The correct behaviour for G4 and prior is performed for later processors too. Given PPC970 and later have that bit documented as reserved, this should not be a problem. |