Re: [Xen-devel] [PATCH 11/15] xen/arm: Allow lpae_is_{table, mapping} helpers to work on invalid entry

2018-08-16 Thread Julien Grall
Hi, On 08/15/2018 08:13 PM, Stefano Stabellini wrote: On Tue, 14 Aug 2018, Julien Grall wrote: Hi Stefano, On 08/14/2018 10:33 PM, Stefano Stabellini wrote: On Mon, 16 Jul 2018, Julien Grall wrote: Currently, lpae_is_{table, mapping} helpers will always return false on entry with the valid b

Re: [Xen-devel] [PATCH 11/15] xen/arm: Allow lpae_is_{table, mapping} helpers to work on invalid entry

2018-08-15 Thread Stefano Stabellini
On Tue, 14 Aug 2018, Julien Grall wrote: > Hi Stefano, > > On 08/14/2018 10:33 PM, Stefano Stabellini wrote: > > On Mon, 16 Jul 2018, Julien Grall wrote: > > > Currently, lpae_is_{table, mapping} helpers will always return false on > > > entry with the valid bit unset. However, it would be useful

Re: [Xen-devel] [PATCH 11/15] xen/arm: Allow lpae_is_{table, mapping} helpers to work on invalid entry

2018-08-14 Thread Julien Grall
Hi Stefano, On 08/14/2018 10:33 PM, Stefano Stabellini wrote: On Mon, 16 Jul 2018, Julien Grall wrote: Currently, lpae_is_{table, mapping} helpers will always return false on entry with the valid bit unset. However, it would be useful to have them ^entries operating on any entry. For inst

Re: [Xen-devel] [PATCH 11/15] xen/arm: Allow lpae_is_{table, mapping} helpers to work on invalid entry

2018-08-14 Thread Stefano Stabellini
On Mon, 16 Jul 2018, Julien Grall wrote: > Currently, lpae_is_{table, mapping} helpers will always return false on > entry with the valid bit unset. However, it would be useful to have them ^entries > operating on any entry. For instance to store information in advance but > still request a faul