From: Kyle Hale <kh@u.northwestern.edu>
Date: Mon, 29 Dec 2014 19:54:15 +0000 (-0600)
Subject: FPU stub change to support more recent kernels
X-Git-Url: http://v3vee.org/palacios/gitweb/gitweb.cgi?p=palacios.git;a=commitdiff_plain;h=b42be88af0bc84e967d06820ebc9a86a67e2bebc

FPU stub change to support more recent kernels
---

diff --git a/linux_module/palacios-stubs.c b/linux_module/palacios-stubs.c
index 1e1d17e..d5e27b3 100644
--- a/linux_module/palacios-stubs.c
+++ b/linux_module/palacios-stubs.c
@@ -832,10 +832,14 @@ palacios_mutex_unlock_irqrestore(void *mutex, void *flags)
 
 void palacios_used_fpu(void)
 {
-   struct thread_info *cur = current_thread_info();
-
    // We assume we are not preemptible here...
+#ifndef TS_USEDFPU
+   struct task_struct *tsk = current;
+   tsk->thread.fpu.has_fpu = 1;
+#else
+   struct thread_info *cur = current_thread_info();
    cur->status |= TS_USEDFPU; 
+#endif
    clts(); 
    // After this, FP Save should be handled by Linux if it
    // switches to a different task and that task uses FPU