Re: [Xen-devel] [PATCH 3/3] xen/arm: Survive unknown traps from guests

2017-05-04 Thread Julien Grall
On 05/04/2017 08:14 PM, Stefano Stabellini wrote: On Thu, 4 May 2017, Julien Grall wrote: Currently we crash Xen if we see an ESR_EL2.EC value we don't recognise. As configurable disables/enables are added to the architecture (controlled by RES1/RESO bits respectively), with associated synchro

Re: [Xen-devel] [PATCH 3/3] xen/arm: Survive unknown traps from guests

2017-05-04 Thread Stefano Stabellini
On Thu, 4 May 2017, Julien Grall wrote: > Currently we crash Xen if we see an ESR_EL2.EC value we don't recognise. > As configurable disables/enables are added to the architecture > (controlled by RES1/RESO bits respectively), with associated synchronous > exceptions, it may be possible for a guest

[Xen-devel] [PATCH 3/3] xen/arm: Survive unknown traps from guests

2017-05-04 Thread Julien Grall
Currently we crash Xen if we see an ESR_EL2.EC value we don't recognise. As configurable disables/enables are added to the architecture (controlled by RES1/RESO bits respectively), with associated synchronous exceptions, it may be possible for a guest to trigger exceptions with classes that we don'