Re: [Xen-devel] [PATCH v2 1/2] introduce GFN notification for translated domains

2019-11-23 Thread Julien Grall
Hi Jan, On 21/11/2019 10:41, Jan Beulich wrote: On 21.11.2019 11:07, Julien Grall wrote: On 21/11/2019 09:04, Jan Beulich wrote: On 20.11.2019 21:22, Julien Grall wrote: On 14/11/2019 16:43, Jan Beulich wrote: TBD: Does Arm actually have anything to check against in its

Re: [Xen-devel] [PATCH v2 1/2] introduce GFN notification for translated domains

2019-11-21 Thread Jan Beulich
On 21.11.2019 11:07, Julien Grall wrote: > > > On 21/11/2019 09:04, Jan Beulich wrote: >> On 20.11.2019 21:22, Julien Grall wrote: >>> On 14/11/2019 16:43, Jan Beulich wrote: TBD: Does Arm actually have anything to check against in its arch_notify_gfn()? >>> >>> I understand

Re: [Xen-devel] [PATCH v2 1/2] introduce GFN notification for translated domains

2019-11-21 Thread Julien Grall
On 21/11/2019 09:04, Jan Beulich wrote: On 20.11.2019 21:22, Julien Grall wrote: On 14/11/2019 16:43, Jan Beulich wrote: In order for individual IOMMU drivers (and from an abstract pov also architectures) to be able to adjust, ahead of actual mapping requests, their data structures when they

Re: [Xen-devel] [PATCH v2 1/2] introduce GFN notification for translated domains

2019-11-21 Thread Jan Beulich
On 20.11.2019 21:22, Julien Grall wrote: > On 14/11/2019 16:43, Jan Beulich wrote: >> In order for individual IOMMU drivers (and from an abstract pov also >> architectures) to be able to adjust, ahead of actual mapping requests, >> their data structures when they might cover only a sub-range of

Re: [Xen-devel] [PATCH v2 1/2] introduce GFN notification for translated domains

2019-11-20 Thread Julien Grall
Hi Jan, On 14/11/2019 16:43, Jan Beulich wrote: In order for individual IOMMU drivers (and from an abstract pov also architectures) to be able to adjust, ahead of actual mapping requests, their data structures when they might cover only a sub-range of all possible GFNs, introduce a notification

[Xen-devel] [PATCH v2 1/2] introduce GFN notification for translated domains

2019-11-14 Thread Jan Beulich
In order for individual IOMMU drivers (and from an abstract pov also architectures) to be able to adjust, ahead of actual mapping requests, their data structures when they might cover only a sub-range of all possible GFNs, introduce a notification call used by various code paths potentially