libvirt/SOURCES/libvirt-tests-introduce-hugepages-default-1G-nodeset-2M.patch

From b1ad796106c4f1e889312c67164cce53b01cbc17 Mon Sep 17 00:00:00 2001
Message-Id: <b1ad796106c4f1e889312c67164cce53b01cbc17@dist-git>
From: Pavel Hrdina <phrdina@redhat.com>
Date: Mon, 13 Aug 2018 19:21:50 +0200
Subject: [PATCH] tests: introduce hugepages-default-1G-nodeset-2M
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This test case is currently working but it uncovers existing issue
in our code that the generated QEMU commandline uses the default 1G
hugepage instead of the 2M hugepage specified for exact node.

The issue in our code is that for non-numa guests we take into account
only the first hugepage.  This will be fixed as invalid configuration
since it doesn't make any sense to set default and specific hugepage
for non-numa guest.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
(cherry picked from commit 6ff69e936e4185983fc331c45b76d3b3d8b717ae)

Conflicts:
    tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.args
        - missing upstream commit <caccbba64a>

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1615461

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---
 .../hugepages-default-1G-nodeset-2M.args      | 26 ++++++++++++++++
 .../hugepages-default-1G-nodeset-2M.xml       | 31 +++++++++++++++++++
 tests/qemuxml2argvtest.c                      |  1 +
 .../hugepages-default-1G-nodeset-2M.xml       |  1 +
 tests/qemuxml2xmltest.c                       |  1 +
 5 files changed, 60 insertions(+)
 create mode 100644 tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.args
 create mode 100644 tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.xml
 create mode 120000 tests/qemuxml2xmloutdata/hugepages-default-1G-nodeset-2M.xml

diff --git a/tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.args b/tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.args
new file mode 100644
index 0000000000..d1f8974032
--- /dev/null
+++ b/tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.args
@@ -0,0 +1,26 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-i686 \
+-name SomeDummyHugepagesGuest \
+-S \
+-machine pc,accel=tcg,usb=off,dump-guest-core=off \
+-m 1024 \
+-mem-prealloc \
+-mem-path /dev/hugepages1G/libvirt/qemu/-1-SomeDummyHugepagesGu \
+-smp 2,sockets=2,cores=1,threads=1 \
+-uuid ef1bdff4-27f3-4e85-a807-5fb4d58463cc \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,\
+path=/tmp/lib/domain--1-SomeDummyHugepagesGu/monitor.sock,server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-no-acpi \
+-boot c \
+-usb
diff --git a/tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.xml b/tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.xml
new file mode 100644
index 0000000000..eb0943b105
--- /dev/null
+++ b/tests/qemuxml2argvdata/hugepages-default-1G-nodeset-2M.xml
@@ -0,0 +1,31 @@
+<domain type='qemu'>
+  <name>SomeDummyHugepagesGuest</name>
+  <uuid>ef1bdff4-27f3-4e85-a807-5fb4d58463cc</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <currentMemory unit='KiB'>1048576</currentMemory>
+  <memoryBacking>
+    <hugepages>
+      <page size='1048576' unit='KiB'/>
+      <page size='2048' unit='KiB' nodeset='0'/>
+    </hugepages>
+  </memoryBacking>
+  <vcpu placement='static'>2</vcpu>
+  <os>
+    <type arch='i686' machine='pc'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-i686</emulator>
+    <controller type='usb' index='0'>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
+    </controller>
+    <controller type='pci' index='0' model='pci-root'/>
+    <input type='mouse' bus='ps2'/>
+    <input type='keyboard' bus='ps2'/>
+    <memballoon model='none'/>
+  </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index d4251eff3e..f92c46cec5 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -959,6 +959,7 @@ mymain(void)
     DO_TEST("hugepages-default", NONE);
     DO_TEST("hugepages-default-2M", NONE);
     DO_TEST("hugepages-default-system-size", NONE);
+    DO_TEST("hugepages-default-1G-nodeset-2M", NONE);
     DO_TEST_FAILURE("hugepages-nodeset-nonexist",
                     QEMU_CAPS_DEVICE_PC_DIMM,
                     QEMU_CAPS_OBJECT_MEMORY_FILE,
diff --git a/tests/qemuxml2xmloutdata/hugepages-default-1G-nodeset-2M.xml b/tests/qemuxml2xmloutdata/hugepages-default-1G-nodeset-2M.xml
new file mode 120000
index 0000000000..3d8eb7616e
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/hugepages-default-1G-nodeset-2M.xml
@@ -0,0 +1 @@
+../qemuxml2argvdata/hugepages-default-1G-nodeset-2M.xml
\ No newline at end of file
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 6afc48f98e..6ba8f97e20 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -336,6 +336,7 @@ mymain(void)
     DO_TEST("hugepages-default", NONE);
     DO_TEST("hugepages-default-2M", NONE);
     DO_TEST("hugepages-default-system-size", NONE);
+    DO_TEST("hugepages-default-1G-nodeset-2M", NONE);
     DO_TEST("hugepages-numa-default-2M", NONE);
     DO_TEST("hugepages-numa-default-dimm", NONE);
     DO_TEST("hugepages-numa-nodeset", NONE);
-- 
2.18.0