Add some comments to describe how to set up the QEMU environment
prior to running the qemucapsprobe in order to allow for the
creation of consistent results.
Signed-off-by: John Ferlan <jferlan@xxxxxxxxxx>
---
tests/qemucapabilitiestest.c | 34 ++++++++++++++++++++++++++++++++--
1 file changed, 32 insertions(+), 2 deletions(-)
diff --git a/tests/qemucapabilitiestest.c b/tests/qemucapabilitiestest.c
index 00137bb415..2b6291e99e 100644
--- a/tests/qemucapabilitiestest.c
+++ b/tests/qemucapabilitiestest.c
@@ -200,11 +200,41 @@ mymain(void)
DO_TEST("riscv64", "caps_3.0.0");
/*
+ * Create a QEMU build environment using a checked out version
+ * of the release tag, such as:
+ *
+ * git checkout -b v3.0.0 v3.0.0
+ *
+ * Be sure the build dependencies are up to date, such as via yum:
+ *
+ * yum builddep qemu
+ *
+ * Configure the environment, such as for x86_64:
+ *
+ * ./configure --target-list=x86_64-softmmu \
+ * --disable-xen --disable-strip --disable-fdt \
+ * --disable-werror --enable-debug \
+ * --enable-system --enable-user --enable-linux-user \
+ * --with-pkgversion=v3.0.0
+ *
+ * Build the QEMU emulator binary.
+ *
+ * Then from a clean libvirt build:
+ *
* Run "tests/qemucapsprobe /path/to/qemu/binary >foo.replies"
- * to generate updated or new *.replies data files.
+ * to generate updated or new *.replies data files, such as:
+ *
+ * tests/qemucapsprobe /path/to/qemu/binary > \
+ * tests/qemucapabilitiesdata/caps_3.0.0.x86_64.replies
*
- * If you manually edit replies files you can run
+ * If you needed to manually edit replies files you can run
* "tests/qemucapsfixreplies foo.replies" to fix the replies ids.
+ *
+ * Run "VIR_TEST_REGENERATE_OUTPUT=1 tests/qemucapabilitiestest" to
+ * update the corresponding tests/qemucapabilitiesdata/caps_*.xml file.
+ *
+ * May also need to run "VIR_TEST_REGENERATE_OUTPUT=1 tests/domaincapstest"
+ * depending on what changed.
*/
qemuTestDriverFree(&data.driver);
--
2.20.1
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