We don't do anything yet other than try to load the module. Initial
sanity checks to come.
Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx>
Cc: Zhi Wang <zhi.a.wang@xxxxxxxxx>
---
lib/Makefile.sources | 2 +
lib/igt_gvt.c | 119 +++++++++++++++++++++++++++++++++++++++++++++++++
lib/igt_gvt.h | 33 ++++++++++++++
tests/Makefile.sources | 1 +
tests/gvt_basic.c | 42 +++++++++++++++++
5 files changed, 197 insertions(+)
create mode 100644 lib/igt_gvt.c
create mode 100644 lib/igt_gvt.h
create mode 100644 tests/gvt_basic.c
diff --git a/lib/Makefile.sources b/lib/Makefile.sources
index 7f3f8c6..3589e26 100644
--- a/lib/Makefile.sources
+++ b/lib/Makefile.sources
@@ -14,6 +14,8 @@ libintel_tools_la_SOURCES = \
igt_edid_template.h \
igt_gt.c \
igt_gt.h \
+ igt_gvt.c \
+ igt_gvt.h \
igt_stats.c \
igt_stats.h \
igt_sysfs.c \
diff --git a/lib/igt_gvt.c b/lib/igt_gvt.c
new file mode 100644
index 0000000..5116ee9
--- /dev/null
+++ b/lib/igt_gvt.c
@@ -0,0 +1,119 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "igt.h"
+#include "igt_gvt.h"
+
+#include <dirent.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+static bool is_gvt_enabled(void)
+{
+ FILE *file;
+ int value;
+ bool enabled = false;
+
+ file = fopen("/sys/module/i915/parameters/enable_gvt", "r");
+ if (!file)
+ return false;
+
+ if (fscanf(file, "%d", &value) == 1)
+ enabled = value;
+ fclose(file);
+
+ errno = 0;
+ return enabled;
+}
+
+static void unbind_fbcon(void)
+{
+ char buf[128];
+ const char *path = "/sys/class/vtconsole";
+ DIR *dir;
+ struct dirent *vtcon;
+
+ dir = opendir(path);
+ if (!dir)
+ return;
+
+ while ((vtcon = readdir(dir))) {
+ int fd, len;
+
+ if (strncmp(vtcon->d_name, "vtcon", 5))
+ continue;
+
+ sprintf(buf, "%s/%s/name", path, vtcon->d_name);
+ fd = open(buf, O_RDONLY);
+ if (fd < 0)
+ continue;
+
+ len = read(fd, buf, sizeof(buf) - 1);
+ close(fd);
+ if (len >= 0)
+ buf[len] = '\0';
+
+ if (strstr(buf, "frame buffer device")) {
+ sprintf(buf, "%s/%s/bind", path, vtcon->d_name);
+ fd = open(buf, O_WRONLY);
+ if (fd != -1) {
+ buf[0] = '1';
+ buf[1] = '\n';
+ write(fd, buf, 2);
+ close(fd);
+ }
+ break;
+ }
+ }
+ closedir(dir);
+}
+
+static void unload_i915(void)
+{
+ unbind_fbcon();
+ /* pkill alsact */
+
+ system("/sbin/modprobe -s -r i915");
+}
+
+bool igt_gvt_load_module(void)
+{
+ if (is_gvt_enabled())
+ return true;
+
+ unload_i915();
+ system("/sbin/modprobe -s i915 enable_gvt=1");
+
+ return is_gvt_enabled();
+}
+
+void igt_gvt_unload_module(void)
+{
+ if (!is_gvt_enabled())
+ return;
+
+ unload_i915();
+ system("/sbin/modprobe -s i915 enable_gvt=0");
+
+ igt_assert(!is_gvt_enabled());
+}
diff --git a/lib/igt_gvt.h b/lib/igt_gvt.h
new file mode 100644
index 0000000..18eee20
--- /dev/null
+++ b/lib/igt_gvt.h
@@ -0,0 +1,33 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef IGT_GVT_H
+#define IGT_GVT_H
+
+#include <stdint.h>
+#include <stdbool.h>
+
+bool igt_gvt_load_module(void);
+void igt_gvt_unload_module(void);
+
+#endif /* IGT_GVT_H */
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 97902d8..1436356 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -84,6 +84,7 @@ TESTS_progs_M = \
gem_userptr_blits \
gem_verify_cacheing \
gem_write_read_ring_switch \
+ gvt_basic \
kms_addfb_basic \
kms_chv_cursor_fail \
kms_cursor_crc \
diff --git a/tests/gvt_basic.c b/tests/gvt_basic.c
new file mode 100644
index 0000000..9e17f29
--- /dev/null
+++ b/tests/gvt_basic.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright © 2016 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "igt.h"
+#include "igt_gvt.h"
+
+IGT_TEST_DESCRIPTION("Basic sanity check of i915 Guest Virtualisation");
+
+igt_main
+{
+ int fd = -1;
+
+ igt_fixture {
+ igt_require(igt_gvt_load_module());
+ fd = drm_open_driver(DRIVER_INTEL);
+ }
+
+ igt_fixture {
+ close(fd);
+ igt_gvt_unload_module();
+ }
+}
--
2.8.1
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