Re: [Xen-devel] [PATCH 2/4] xen/arm: read ACTLR on the pcpu where the vcpu will run

2018-02-16 Thread Stefano Stabellini
On Fri, 16 Feb 2018, Julien Grall wrote: > Hi Stefano, > > On 15/02/18 23:16, Stefano Stabellini wrote: > > On big.LITTLE systems not all cores have the same ACTLR. Instead of > > reading ACTLR and setting v->arch.actlr in vcpu_initialise, which is run > > always on pcpu 0, do it later on the same

Re: [Xen-devel] [PATCH 2/4] xen/arm: read ACTLR on the pcpu where the vcpu will run

2018-02-16 Thread Julien Grall
Hi Stefano, On 15/02/18 23:16, Stefano Stabellini wrote: On big.LITTLE systems not all cores have the same ACTLR. Instead of reading ACTLR and setting v->arch.actlr in vcpu_initialise, which is run always on pcpu 0, do it later on the same pcpu where the vcpu will run. While the Hardware domai

[Xen-devel] [PATCH 2/4] xen/arm: read ACTLR on the pcpu where the vcpu will run

2018-02-15 Thread Stefano Stabellini
On big.LITTLE systems not all cores have the same ACTLR. Instead of reading ACTLR and setting v->arch.actlr in vcpu_initialise, which is run always on pcpu 0, do it later on the same pcpu where the vcpu will run. This way, assuming that the vcpu has been created with the right pcpu affinity, the g