Re: [Xen-devel] [for-4.8][PATCH] xen/arm64: Add missing synchronization barrier in invalidate_cache

2016-09-21 Thread Stefano Stabellini
On Wed, 21 Sep 2016, Konrad Rzeszutek Wilk wrote: > On Wed, Sep 21, 2016 at 03:52:12PM +0100, Julien Grall wrote: > > The invalidation of the instructions cache requires barriers to ensure > > the completion of the invalidation before continuing (see B2.3.4 in ARM > > DDI 0487A.j). > > > > This

Re: [Xen-devel] [for-4.8][PATCH] xen/arm64: Add missing synchronization barrier in invalidate_cache

2016-09-21 Thread Konrad Rzeszutek Wilk
On Wed, Sep 21, 2016 at 03:52:12PM +0100, Julien Grall wrote: > The invalidation of the instructions cache requires barriers to ensure > the completion of the invalidation before continuing (see B2.3.4 in ARM > DDI 0487A.j). > > This was overlooked in commit fb9d877 "xen/arm64: Add an helper to >

[Xen-devel] [for-4.8][PATCH] xen/arm64: Add missing synchronization barrier in invalidate_cache

2016-09-21 Thread Julien Grall
The invalidation of the instructions cache requires barriers to ensure the completion of the invalidation before continuing (see B2.3.4 in ARM DDI 0487A.j). This was overlooked in commit fb9d877 "xen/arm64: Add an helper to invalidate all instruction caches". Signed-off-by: Julien Grall