Re: [Qemu-devel] [RFC PATCH V2 4/5] icount_warp: Take into account initial offset between clocks

[Paolo Bonzini]

Il 13/06/2014 11:40, Sebastian Tanase ha scritto:
> +        /* On x86 target architecture, the PIT reset function (called
> +           by qemu_system_reset) will end up calling qemu_clock_warp
> +           and then icount_warp_rt changing vm_clock_warp_start from 0 (initial
> +           value) to -1. This in turn will make us skip the initial offset
> +           between the real and virtual clocks (initially virtual clock is 0).
> +           Therefore we save it in clocks_offset. On ARM, we don't have this
> +           problem and clocks_offset will be 0. */
> +        if (clocks_offset == -1 && icount_align_option) {
> +            clocks_offset = vm_clock_warp_start;
> +        }

Can we instead just do

clocks_offset = qemu_get_clock(QEMU_CLOCK_REALTIME);

in qemu_tcg_init_vcpu?

Paolo