On 9 July 2015 at 13:05, Christoffer Dall <christoffer.dall@xxxxxxxxxx> wrote: > As I understand it, the problem is that if we ever run a VCPU after > reading the value, and write back the value afterwards, you potentially > make time go backwards and get inconsistent views of time from different > VCPUs because they may have read the time before/after updating the > CNTVOFF. Right, but I think if QEMU does that it's a bug (and more to the point I don't entirely understand why we would do that yet, even given that we don't have a distinction between "registers to sync always" and "registers to sync only on reset"...) -- PMM _______________________________________________ kvmarm mailing list kvmarm@xxxxxxxxxxxxxxxxxxxxx https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
