Re: [Xen-devel] [PATCH v3 3/6] xen/arm: Use check_workaround to handle the erratum 766422

2016-08-04 Thread Julien Grall
Hi, On 04/08/16 18:50, Julien Grall wrote: Currently, Xen is accessing the stored MIDR everytime it has to check whether the processor is affected by the erratum 766422. This could take advantage of the new capability bitfields to detect whether the processor is affected at boot time. With thi

[Xen-devel] [PATCH v3 3/6] xen/arm: Use check_workaround to handle the erratum 766422

2016-08-04 Thread Julien Grall
Currently, Xen is accessing the stored MIDR everytime it has to check whether the processor is affected by the erratum 766422. This could take advantage of the new capability bitfields to detect whether the processor is affected at boot time. With this patch, the number of instructions to check t