Re: [Xen-devel] x86: mapping from Dom0 to DomU

2017-04-24 Thread Oleksandr Andrushchenko
On 04/24/2017 09:43 AM, Jan Beulich wrote: On 24.04.17 at 08:10, wrote: On 04/21/2017 06:55 PM, Jan Beulich wrote: On 21.04.17 at 15:04, wrote: I am working on a zero-copy scenario for x86 and for that I am mapping pages from Dom0 to DomU (yes, I know there are at least security concerns).

Re: [Xen-devel] x86: mapping from Dom0 to DomU

2017-04-23 Thread Jan Beulich
>>> On 24.04.17 at 08:10, wrote: > On 04/21/2017 06:55 PM, Jan Beulich wrote: > On 21.04.17 at 15:04, wrote: >>> I am working on a zero-copy scenario for x86 >>> and for that I am mapping pages from Dom0 to DomU >>> (yes, I know there are at least security concerns). >>> >>> Everything is jus

Re: [Xen-devel] x86: mapping from Dom0 to DomU

2017-04-23 Thread Oleksandr Andrushchenko
Hi, Jan! On 04/21/2017 06:55 PM, Jan Beulich wrote: On 21.04.17 at 15:04, wrote: Hi, all! I am working on a zero-copy scenario for x86 and for that I am mapping pages from Dom0 to DomU (yes, I know there are at least security concerns). Everything is just fine, e.g. I can map grefs from Dom0

Re: [Xen-devel] x86: mapping from Dom0 to DomU

2017-04-21 Thread Jan Beulich
>>> On 21.04.17 at 15:04, wrote: > Hi, all! > > I am working on a zero-copy scenario for x86 > and for that I am mapping pages from Dom0 to DomU > (yes, I know there are at least security concerns). > > Everything is just fine, e.g. I can map grefs from Dom0 in DomU > with gnttab_map_refs, until