diff options
Diffstat (limited to 'results/classifier/105/instruction/2662')
| -rw-r--r-- | results/classifier/105/instruction/2662 | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/results/classifier/105/instruction/2662 b/results/classifier/105/instruction/2662 new file mode 100644 index 00000000..3a175088 --- /dev/null +++ b/results/classifier/105/instruction/2662 @@ -0,0 +1,24 @@ +instruction: 0.899 +device: 0.692 +semantic: 0.503 +graphic: 0.441 +other: 0.366 +mistranslation: 0.348 +network: 0.311 +socket: 0.173 +boot: 0.155 +vnc: 0.151 +assembly: 0.054 +KVM: 0.025 + +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. |