svn commit: r249833 - in projects/amd64_xen_pv/sys/amd64: amd64 include
Cherry G. Mathew
cherry at FreeBSD.org
Wed Apr 24 06:40:49 UTC 2013
Author: cherry
Date: Wed Apr 24 06:40:48 2013
New Revision: 249833
URL: http://svnweb.freebsd.org/changeset/base/249833
Log:
Add a non-inline stub function for assembler code.
Approved by: gibbs(implicit)
Modified:
projects/amd64_xen_pv/sys/amd64/amd64/fpu.c
projects/amd64_xen_pv/sys/amd64/include/fpu.h
Modified: projects/amd64_xen_pv/sys/amd64/amd64/fpu.c
==============================================================================
--- projects/amd64_xen_pv/sys/amd64/amd64/fpu.c Wed Apr 24 06:38:49 2013 (r249832)
+++ projects/amd64_xen_pv/sys/amd64/amd64/fpu.c Wed Apr 24 06:40:48 2013 (r249833)
@@ -1010,3 +1010,16 @@ fpu_save_area_reset(struct savefpu *fsa)
bcopy(fpu_initialstate, fsa, cpu_max_ext_state_size);
}
+
+#ifdef XEN
+#include <machine/xen/xen-os.h>
+#include <xen/hypervisor.h>
+
+/* Wrapper for the hypervisor version which is inline */
+/* XXX: This is all pretty sub-optimal at the moment */
+void
+fpu_taskswitch(int set)
+{
+ HYPERVISOR_fpu_taskswitch(set);
+}
+#endif
Modified: projects/amd64_xen_pv/sys/amd64/include/fpu.h
==============================================================================
--- projects/amd64_xen_pv/sys/amd64/include/fpu.h Wed Apr 24 06:38:49 2013 (r249832)
+++ projects/amd64_xen_pv/sys/amd64/include/fpu.h Wed Apr 24 06:40:48 2013 (r249833)
@@ -77,6 +77,9 @@ int is_fpu_kern_thread(u_int flags);
struct savefpu *fpu_save_area_alloc(void);
void fpu_save_area_free(struct savefpu *fsa);
void fpu_save_area_reset(struct savefpu *fsa);
+#ifdef XEN
+void fpu_taskswitch(int set);
+#endif
/*
* Flags for fpu_kern_alloc_ctx(), fpu_kern_enter() and fpu_kern_thread().
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