Re: [Qemu-devel] [PATCH RESEND v4 17/18] target-i386: block migration and savevm if invariant tsc is exposed

[Amit Shah]

On (Tue) 10 Jun 2014 [11:43:29], Eduardo Habkost wrote:
> On Tue, Jun 10, 2014 at 12:42:14PM +0530, Amit Shah wrote:
> > On (Wed) 14 May 2014 [16:30:09], Eduardo Habkost wrote:
> > > From: Marcelo Tosatti <address@hidden>
> > > 
> > > Invariant TSC documentation mentions that "invariant TSC will run at a
> > > constant rate in all ACPI P-, C-. and T-states".
> > > 
> > > This is not the case if migration to a host with different TSC frequency
> > > is allowed, or if savevm is performed. So block migration/savevm.
> > 
> > Can you add this to the release notes, please?
> 
> It can be mentioned as new feature, sure, but note that it shouldn't
> affect any existing users, except the ones who decide to explicitly use
> "-cpu ...,+invtsc" or "-cpu host,migratable=no" on the command line.

Ah, yes; won't break anything.  Just that a relnote would be good for
the new functionality being added.


                Amit