Re: [Xen-devel] [PATCH v2] xen/arm32: Distinguish guest SError from Xen data aborts

2017-05-04 Thread Julien Grall
Hi, On 05/04/2017 07:32 PM, Stefano Stabellini wrote: On Thu, 4 May 2017, Wei Chen wrote: ARM32 doesn't have an exception similar to hyp_sync of ARM64 to catch the synchronous data abort (For example, a NULL pointer has been referenced). Hence the SError and sync data abort will be caught by th

Re: [Xen-devel] [PATCH v2] xen/arm32: Distinguish guest SError from Xen data aborts

2017-05-04 Thread Stefano Stabellini
On Thu, 4 May 2017, Wei Chen wrote: > ARM32 doesn't have an exception similar to hyp_sync of ARM64 to catch > the synchronous data abort (For example, a NULL pointer has been referenced). > Hence the SError and sync data abort will be caught by the same data abort > exception. > > Since commit "3f

[Xen-devel] [PATCH v2] xen/arm32: Distinguish guest SError from Xen data aborts

2017-05-03 Thread Wei Chen
ARM32 doesn't have an exception similar to hyp_sync of ARM64 to catch the synchronous data abort (For example, a NULL pointer has been referenced). Hence the SError and sync data abort will be caught by the same data abort exception. Since commit "3f16c8cb" we treat all data aborts caught by this