[Xen-devel] [PATCH v2 07/19] xen/arm: Introduce a virtual abort injection helper

2017-03-30 Thread Wei Chen
When guest triggers async aborts, in most platform, such aborts will be routed to hypervisor. But we don't want the hypervisor to handle such aborts, so we have to route such aborts back to the guest. This helper is using the HCR_EL2.VSE (HCR.VA for aarch32) bit to route such aborts back to the gu

Re: [Xen-devel] [PATCH v2 07/19] xen/arm: Introduce a virtual abort injection helper

2017-03-30 Thread Julien Grall
Hi Wei, On 30/03/17 10:13, Wei Chen wrote: When guest triggers async aborts, in most platform, such aborts will be routed to hypervisor. But we don't want the hypervisor to handle such aborts, so we have to route such aborts back to the guest. This helper is using the HCR_EL2.VSE (HCR.VA for aa

Re: [Xen-devel] [PATCH v2 07/19] xen/arm: Introduce a virtual abort injection helper

2017-03-30 Thread Stefano Stabellini
On Thu, 30 Mar 2017, Julien Grall wrote: > Hi Wei, > > On 30/03/17 10:13, Wei Chen wrote: > > When guest triggers async aborts, in most platform, such aborts > > will be routed to hypervisor. But we don't want the hypervisor > > to handle such aborts, so we have to route such aborts back to > > th

Re: [Xen-devel] [PATCH v2 07/19] xen/arm: Introduce a virtual abort injection helper

2017-03-30 Thread Wei Chen
On 2017/3/31 1:20, Julien Grall wrote: > Hi Wei, > > On 30/03/17 10:13, Wei Chen wrote: >> When guest triggers async aborts, in most platform, such aborts >> will be routed to hypervisor. But we don't want the hypervisor >> to handle such aborts, so we have to route such aborts back to >> the guest