[gem5-dev] changeset in gem5: tests: Add example of using KVM acceleration ...

[David Hashe]

changeset ceece50bbf08 in /z/repo/gem5
details: http://repo.gem5.org/gem5?cmd=changeset;node=ceece50bbf08
description:
        tests: Add example of using KVM acceleration with an app

        Add #ifdef's to gpu-hello.cpp demonstrating how to annotate an 
application
        for KVM acceleration.

diffstat:

 tests/test-progs/gpu-hello/src/gpu-hello.cpp |  10 ++++++++++
 1 files changed, 10 insertions(+), 0 deletions(-)

diffs (27 lines):

diff -r 29606f000389 -r ceece50bbf08 
tests/test-progs/gpu-hello/src/gpu-hello.cpp
--- a/tests/test-progs/gpu-hello/src/gpu-hello.cpp      Mon Aug 22 11:41:05 
2016 -0400
+++ b/tests/test-progs/gpu-hello/src/gpu-hello.cpp      Mon Aug 22 11:41:37 
2016 -0400
@@ -41,6 +41,12 @@
 #include <fstream>
 #include <string>
 
+#ifdef KVM_SWITCH
+#include "m5op.h"
+
+void *m5_mem = (void*)0xffffc90000000000;
+#endif
+
 #define SUCCESS 0
 #define FAILURE 1
 
@@ -247,6 +253,10 @@
         return FAILURE;
     }
 
+#ifdef KVM_SWITCH
+    m5_switchcpu();
+#endif
+
     // 2. Launch kernel
     status = clEnqueueNDRangeKernel(commandQueue, kernel, 1, NULL,
                                     globalThreads, localThreads, 0, NULL,
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