Avi Kivity <avi@xxxxxxxxxx> wrote: > > Can you think of a case where we need to perform alignment checking in > > the emulator? > > The case that x86/svm.c is checking for is a security issue. > > Guests don't normally turn eflags.AC on, so I don't expect issues > there. I also don't see issues with SSE alignment, especially as AVX > removes it (for VEX encoded instructions). However, it's good to stick > to the spec, there are always surprise issues when you don't. > Isn't it make sense to add Documentation/virtual/kvm/emulator.txt at some point in the future? In some cases it is difficult to know the underlying assumptions. Explanations about the emulator specific macros may also be helpful. Takuya -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
