RE: [Xen-devel] passing hypercall parameters by pointer

["Tian, Kevin" <kevin.tian@xxxxxxxxx>]

>From: Hollis Blanchard
>Sent: Thursday, August 18, 2005 6:05 AM
>        case DOM0_GETMEMLIST:
>            op->u.getmemlist.buffer =
virt_to_phys(op->u.getmemlist.buffer);
>            break;

If following Ian's suggestion, you have to create a list of pfn here
instead of only converting start address. There's no guaranty that the
buffer is limited in one page. ;-)

Thanks,
Kevin
>        case DOM0_SETDOMAININFO:
>            ...
>        case DOM0_READCONSOLE:
>            ...
>        }
>    }
>    break;
>    }
>
>Right now the kernel doesn't peer inside the hypercall structures at
all.
>
>--
>Hollis Blanchard
>IBM Linux Technology Center
>
>_______________________________________________
>Xen-devel mailing list
>Xen-devel@xxxxxxxxxxxxxxxxxxx
>http://lists.xensource.com/xen-devel

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