Re: [PATCH v3 10/12] KVM: arm64: trap nested debug register access

2015-05-08 Thread Christoffer Dall
On Thu, May 07, 2015 at 10:07:13AM +0100, Alex Bennée wrote: When we are using the hardware registers for guest debug we need to deal with the guests access to them. There is already a mechanism for dealing with these accesses so we build on top of that. - any access to mdscr_el1 is now

[PATCH v3 10/12] KVM: arm64: trap nested debug register access

2015-05-07 Thread Alex Bennée
When we are using the hardware registers for guest debug we need to deal with the guests access to them. There is already a mechanism for dealing with these accesses so we build on top of that. - any access to mdscr_el1 is now stored in the mirror location - access to DBG[WB][CV]R continues