lguest: write more information to userspace about pending traps.
This is preparation for userspace handling MMIO and ioport accesses.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index cdb2f9a..9159dbc 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -229,16 +229,17 @@
* It's possible the Guest did a NOTIFY hypercall to the
* Launcher.
*/
- if (cpu->pending_notify) {
+ if (cpu->pending.trap) {
/*
* Does it just needs to write to a registered
* eventfd (ie. the appropriate virtqueue thread)?
*/
if (!send_notify_to_eventfd(cpu)) {
/* OK, we tell the main Launcher. */
- if (put_user(cpu->pending_notify, user))
+ if (copy_to_user(user, &cpu->pending,
+ sizeof(cpu->pending)))
return -EFAULT;
- return sizeof(cpu->pending_notify);
+ return sizeof(cpu->pending);
}
}