Re: [Xen-devel] netif & grant tables

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 4 Jul 2005, at 19:43, Stefan Berger wrote:

> linux-2.6.11-xen-sparse/arch/xen/i386/mm/ioremap.c: 
> direct_remap_area_pages()
> calls
>       HYPERVISOR_mmu_update calls
>          xen/arch/x86/mm.c:do_mmu_update calls
>            set_foreigndom() which has an IS_PRIV() in the path
>
> -> The direct_remap_area_pages call fails if a domain does not have the
> privilege bit set.
The backend driver parts that use this function need cleaning up to use  
a grant reference instead.
> netback/netback.c: alloc_mfn() calls
>    HYPERVISOR_dom_mem_op(MEMOP_increase_reservation, mfn_list,
> MAX_MFN_ALLOC, 0);
>      xen/common/dom_mem_ops.c:do_dom_mem_op() is called which has a
> IS_PRIV() in the path
It only disallows you from adjusting others' reservations. You can  
still adjust your own.
 -- Keir


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel