Re: [Xen-devel] Passing pointers to hypercalls

2014-11-09 Thread Amaro, Emmanuel
Of course. Agh, I forgot to change it to 1. If someone else looks at this, in my case it means this file: xen/arch/x86/x86_64/entry.S Thanks! On Nov 9, 2014, at 2:27 PM, Andrew Cooper mailto:andrew.coop...@citrix.com>> wrote: On 09/11/14 19:16, Amaro, Emmanuel wrote: Hello, I am trying to p

Re: [Xen-devel] Passing pointers to hypercalls

2014-11-09 Thread Andrew Cooper
On 09/11/14 19:16, Amaro, Emmanuel wrote: > Hello, > > I am trying to pass a pointer to an hyper call in the simplest > possible way, set it's value, an return it to the guest. > > I have tried 2 different ways: > - Directly with simple pointers (I read somewhere this would work on > x86), but the

[Xen-devel] Passing pointers to hypercalls

2014-11-09 Thread Amaro, Emmanuel
Hello, I am trying to pass a pointer to an hyper call in the simplest possible way, set it’s value, an return it to the guest. I have tried 2 different ways: - Directly with simple pointers (I read somewhere this would work on x86), but the pointer address is set to 0xdeadbeef, so dereferen