Re: [Xen-devel] [PATCH v4 4/6] xen: add xen_pin_vcpu() to support calling functions on a dedicated pcpu

2016-04-05 Thread David Vrabel
On 05/04/16 11:01, Juergen Gross wrote: > > No, I don't think this is a good idea. In the EINVAL or EBUSY case a > simple Xen admin command might be enough to make the next call succeed. > I don't want to disable pinning in this case. Ok. Acked-by: David Vrabel David

Re: [Xen-devel] [PATCH v4 4/6] xen: add xen_pin_vcpu() to support calling functions on a dedicated pcpu

2016-04-05 Thread Juergen Gross
On 05/04/16 11:45, David Vrabel wrote: > On 05/04/16 06:10, Juergen Gross wrote: >> Some hardware models (e.g. Dell Studio 1555 laptops) require calls to >> the firmware to be issued on cpu 0 only. As Dom0 might have to use >> these calls, add xen_pin_vcpu() to achieve this functionality. >> >> In

Re: [Xen-devel] [PATCH v4 4/6] xen: add xen_pin_vcpu() to support calling functions on a dedicated pcpu

2016-04-05 Thread David Vrabel
On 05/04/16 06:10, Juergen Gross wrote: > Some hardware models (e.g. Dell Studio 1555 laptops) require calls to > the firmware to be issued on cpu 0 only. As Dom0 might have to use > these calls, add xen_pin_vcpu() to achieve this functionality. > > In case either the domain doesn't have the