lguest: add iomem region, where guest page faults get sent to userspace.

This lets us implement PCI.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

1 files changed, 2 insertions, 1 deletions

diff --git a/tools/lguest/lguest.c b/tools/lguest/lguest.c
index 485fe13db12e..02f353989e6c 100644
--- a/tools/lguest/lguest.c
+++ b/tools/lguest/lguest.c
@@ -548,7 +548,8 @@ static void tell_kernel(unsigned long start)
 {
         unsigned long args[] = { LHREQ_INITIALIZE,
                                  (unsigned long)guest_base,
-                                 guest_limit / getpagesize(), start };
+                                 guest_limit / getpagesize(), start,
+                                 guest_limit / getpagesize() };
         verbose("Guest: %p - %p (%#lx)\n",
                 guest_base, guest_base + guest_limit, guest_limit);
         lguest_fd = open_or_die("/dev/lguest", O_RDWR);