RE: [PATCH] xen/arm: vgic to ignore GICD ICPENRn registers access

2021-10-11 Thread Hongda Deng
org; > sstabell...@kernel.org; Bertrand Marquis ; Wei > Chen > Subject: Re: [PATCH] xen/arm: vgic to ignore GICD ICPENRn registers access > > On Thu, 23 Sep 2021, Julien Grall wrote: > > Hi, > > > > On 23/09/2021 11:14, Hongda Deng wrote: > > > Curren

Re: [PATCH] xen/arm: vgic to ignore GICD ICPENRn registers access

2021-09-23 Thread Stefano Stabellini
On Thu, 23 Sep 2021, Julien Grall wrote: > Hi, > > On 23/09/2021 11:14, Hongda Deng wrote: > > Currently, Xen will return IO unhandled when guests access GICD ICPENRn > > registers. This will raise a data abort inside guest. For Linux Guest, > > these virtual registers will not be accessed. But fo

Re: [PATCH] xen/arm: vgic to ignore GICD ICPENRn registers access

2021-09-23 Thread Julien Grall
Hi, On 23/09/2021 11:14, Hongda Deng wrote: Currently, Xen will return IO unhandled when guests access GICD ICPENRn registers. This will raise a data abort inside guest. For Linux Guest, these virtual registers will not be accessed. But for Zephyr, in its GIC initilization code, these virtual re