Re: [Xen-devel] [PATCH v2 7/8] xen: arm: context switch vtimer PPI state.

2015-12-22 Thread Stefano Stabellini
On Tue, 10 Nov 2015, Ian Campbell wrote: > ... instead of artificially masking the timer interrupt in the timer > state and relying on the guest to unmask (which it isn't required to > do per the h/w spec, although Linux does). > > By using the newly added hwppi save/restore functionality we make

Re: [Xen-devel] [PATCH v2 7/8] xen: arm: context switch vtimer PPI state.

2015-11-11 Thread Julien Grall
Hi Ian, On 10/11/15 16:21, Ian Campbell wrote: > ... instead of artificially masking the timer interrupt in the timer > state and relying on the guest to unmask (which it isn't required to > do per the h/w spec, although Linux does). > > By using the newly added hwppi save/restore functionality

[Xen-devel] [PATCH v2 7/8] xen: arm: context switch vtimer PPI state.

2015-11-10 Thread Ian Campbell
... instead of artificially masking the timer interrupt in the timer state and relying on the guest to unmask (which it isn't required to do per the h/w spec, although Linux does). By using the newly added hwppi save/restore functionality we make use of the GICD I[SC]ACTIVER registers to save and