lguest: Allow running under paravirt-enabled KVM.

We actually can run under KVM, as it doesn't paravirtualize anything we
need to use; reduce the check to checking we are the normal ringlevel.

Reported-by: Stefanos Geraggelos <sgerag@cslab.ece.ntua.gr>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au># HG changeset patch

diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index 2535933..5c13e93 100644 (file)
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -313,7 +313,7 @@ static int __init init(void)
        int err;
 
        /* Lguest can't run under Xen, VMI or itself.  It does Tricky Stuff. */
-       if (paravirt_enabled()) {
+       if (get_kernel_rpl() != 0) {
                printk("lguest is afraid of being a guest\n");
                return -EPERM;
        }