Re: [Xen-devel] [PATCH 0/6] Support calling functions on dedicated physical cpu

2016-03-11 Thread Peter Zijlstra
On Fri, Mar 11, 2016 at 01:15:04PM +, One Thousand Gnomes wrote: > On Fri, 11 Mar 2016 13:25:14 +0100 > Peter Zijlstra wrote: > > > On Fri, Mar 11, 2016 at 12:59:28PM +0100, Juergen Gross wrote: > > > Some hardware (e.g. Dell Studio laptops) require special functions to > > > be called on phy

Re: [Xen-devel] [PATCH 0/6] Support calling functions on dedicated physical cpu

2016-03-11 Thread One Thousand Gnomes
On Fri, 11 Mar 2016 13:25:14 +0100 Peter Zijlstra wrote: > On Fri, Mar 11, 2016 at 12:59:28PM +0100, Juergen Gross wrote: > > Some hardware (e.g. Dell Studio laptops) require special functions to > > be called on physical cpu 0 in order to avoid occasional hangs. When > > running as dom0 under Xe

Re: [Xen-devel] [PATCH 0/6] Support calling functions on dedicated physical cpu

2016-03-11 Thread Pali Rohár
On Friday 11 March 2016 13:25:14 Peter Zijlstra wrote: > On Fri, Mar 11, 2016 at 12:59:28PM +0100, Juergen Gross wrote: > > Some hardware (e.g. Dell Studio laptops) require special functions to > > be called on physical cpu 0 in order to avoid occasional hangs. When > > running as dom0 under Xen th

Re: [Xen-devel] [PATCH 0/6] Support calling functions on dedicated physical cpu

2016-03-11 Thread Peter Zijlstra
On Fri, Mar 11, 2016 at 12:59:28PM +0100, Juergen Gross wrote: > Some hardware (e.g. Dell Studio laptops) require special functions to > be called on physical cpu 0 in order to avoid occasional hangs. When > running as dom0 under Xen this could be achieved only via special boot > parameters (vcpu p

[Xen-devel] [PATCH 0/6] Support calling functions on dedicated physical cpu

2016-03-11 Thread Juergen Gross
Some hardware (e.g. Dell Studio laptops) require special functions to be called on physical cpu 0 in order to avoid occasional hangs. When running as dom0 under Xen this could be achieved only via special boot parameters (vcpu pinning) limiting the hypervisor in it's scheduling decisions. This pat