summaryrefslogtreecommitdiff
path: root/drivers
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-10-29 07:52:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-10-29 07:52:16 -0700
commitce949717b559709423c1ef716a9db16d1dcadaed (patch)
tree003c5c064cd6104c8bff431e3431314bd614d7e0 /drivers
parent249842477c589ea29ff161ace9c8666d96e9883a (diff)
parent0acf00014bcfd71090c3b0d43c98e970108064e4 (diff)
Merge git://github.com/rustyrussell/linux
* git://github.com/rustyrussell/linux: lguest: move process freezing before pending signals check lguest: don't allow KVM-detection cpuid. lguest: Allow running under paravirt-enabled KVM.
Diffstat (limited to 'drivers')
-rw-r--r--drivers/lguest/core.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/drivers/lguest/core.c b/drivers/lguest/core.c
index 2535933c49f8..b5fdcb78a75b 100644
--- a/drivers/lguest/core.c
+++ b/drivers/lguest/core.c
@@ -232,6 +232,13 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user)
}
}
+ /*
+ * All long-lived kernel loops need to check with this horrible
+ * thing called the freezer. If the Host is trying to suspend,
+ * it stops us.
+ */
+ try_to_freeze();
+
/* Check for signals */
if (signal_pending(current))
return -ERESTARTSYS;
@@ -246,13 +253,6 @@ int run_guest(struct lg_cpu *cpu, unsigned long __user *user)
try_deliver_interrupt(cpu, irq, more);
/*
- * All long-lived kernel loops need to check with this horrible
- * thing called the freezer. If the Host is trying to suspend,
- * it stops us.
- */
- try_to_freeze();
-
- /*
* Just make absolutely sure the Guest is still alive. One of
* those hypercalls could have been fatal, for example.
*/
@@ -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;
}