Re: [PATCH] KVM: PPC: Don't sync timebase when inside KVM

2012-02-29 Thread Scott Wood
On 02/29/2012 12:28 PM, Alexander Graf wrote: > > > On 29.02.2012, at 18:50, Scott Wood wrote: > >> On 02/28/2012 08:16 PM, Alexander Graf wrote: >>> When we know that we're running inside of a KVM guest, we don't have to >>> worry about synchronizing timebases between different CPUs, since the

Re: [PATCH] KVM: PPC: Don't sync timebase when inside KVM

2012-02-29 Thread Alexander Graf
On 29.02.2012, at 18:50, Scott Wood wrote: > On 02/28/2012 08:16 PM, Alexander Graf wrote: >> When we know that we're running inside of a KVM guest, we don't have to >> worry about synchronizing timebases between different CPUs, since the >> host already took care of that. >> >> This fixes CPU

Re: [PATCH] KVM: PPC: Don't sync timebase when inside KVM

2012-02-29 Thread Scott Wood
On 02/28/2012 08:16 PM, Alexander Graf wrote: > When we know that we're running inside of a KVM guest, we don't have to > worry about synchronizing timebases between different CPUs, since the > host already took care of that. > > This fixes CPU overcommit scenarios where vCPUs could hang forever t

[PATCH] KVM: PPC: Don't sync timebase when inside KVM

2012-02-28 Thread Alexander Graf
When we know that we're running inside of a KVM guest, we don't have to worry about synchronizing timebases between different CPUs, since the host already took care of that. This fixes CPU overcommit scenarios where vCPUs could hang forever trying to sync each other while not being scheduled. Rep