[Qemu-devel] Re: [PATCH v2] make tsc stable over migration and machine start

[Marcelo Tosatti]

On Wed, Feb 02, 2011 at 07:16:20AM -0500, Glauber Costa wrote:
> If the machine is stopped, we should not record two different tsc values
> upon a save operation. The same problem happens with kvmclock.
> 
> But kvmclock is taking a different diretion, being now seen as a separate
> device. Since this is unlikely to happen with the tsc, I am taking the
> approach here of simply registering a handler for state change, and
> using a per-CPUState variable that prevents double updates for the TSC.
> 
> Signed-off-by: Glauber Costa <address@hidden>
> CC: Jan Kiszka <address@hidden>
> 
> ---
> v2: updated tsc validation logic, as asked by Jan
> ---
>  target-i386/cpu.h |    1 +
>  target-i386/kvm.c |   18 +++++++++++++++++-
>  2 files changed, 18 insertions(+), 1 deletions(-)

Please regenerate against uq/master.