Re: [Xen-devel] [PATCH v6 1/7] xen/arm: Introduce alternative runtime patching

2016-08-03 Thread Konrad Rzeszutek Wilk
On Wed, Jul 27, 2016 at 05:37:05PM +0100, Julien Grall wrote: > Some of the processor erratum will require to modify code sequence. > As those modifications may impact the performance, they should only > be enabled on affected cores. Furthermore, Xen may also want to take > advantage of new hardwar

[Xen-devel] [PATCH v6 1/7] xen/arm: Introduce alternative runtime patching

2016-07-27 Thread Julien Grall
Some of the processor erratum will require to modify code sequence. As those modifications may impact the performance, they should only be enabled on affected cores. Furthermore, Xen may also want to take advantage of new hardware features coming up with v8.1 and v8.2. This patch adds an infrastru