Il 05/12/2013 17:17, Marcelo Tosatti ha scritto: >> > I agree it is a bit ugly, but in my testing QEMU seemed to loop over all >> > the VCPUS fast enough for the kernel side kvm_write_tsc() to do a >> > reasonable job of matching the offsets (the Linux guest did not mark >> > the TSC unstable due to the TSCs being unsynchronized). Am I missing >> > something? > Right, modern kernels (see kvm_write_tsc) perform synchronization, so in > theory the "KVM is yet unable to synchronize ..." code is not necessary > anymore. > > I vote for dropping the thing entirely.
If it can be dropped entirely, I certainly have no problem with starting with a simple patch first. Paolo
