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libvirt/0111-qemu-hotplug-Skip-wait...

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From: Peter Krempa <pkrempa@redhat.com>
Date: Fri, 29 Apr 2016 13:49:13 +0200
Subject: [PATCH] qemu: hotplug: Skip waiting for tray opening if qemu doesn't
notify us
If qemu doesn't support DEVICE_TRAY_MOVED event the code that attempts
to change media would attempt to re-eject the tray even if it wouldn't
be notified when the tray opened. Add a capability bit and skip retrying
for old qemus.
(cherry picked from commit 833ae6b4356934e7b779c4be01bd2bf051930dde)
---
src/qemu/qemu_capabilities.c | 2 ++
src/qemu/qemu_capabilities.h | 1 +
src/qemu/qemu_hotplug.c | 9 +++++++++
tests/qemucapabilitiesdata/caps_1.2.2-1.caps | 1 +
tests/qemucapabilitiesdata/caps_1.3.1-1.caps | 1 +
tests/qemucapabilitiesdata/caps_1.4.2-1.caps | 1 +
tests/qemucapabilitiesdata/caps_1.5.3-1.caps | 1 +
tests/qemucapabilitiesdata/caps_1.6.0-1.caps | 1 +
tests/qemucapabilitiesdata/caps_1.6.50-1.caps | 1 +
tests/qemucapabilitiesdata/caps_2.1.1-1.caps | 1 +
tests/qemucapabilitiesdata/caps_2.4.0-1.caps | 1 +
tests/qemucapabilitiesdata/caps_2.5.0-1.caps | 1 +
tests/qemucapabilitiesdata/caps_2.6.0-1.caps | 1 +
13 files changed, 22 insertions(+)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 57e2056..94a357f 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -321,6 +321,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
"qxl-vga.vram64_size_mb", /* 215 */
"chardev-logfile",
"debug-threads",
+ "device-tray-moved-event",
);
@@ -1493,6 +1494,7 @@ struct virQEMUCapsStringFlags virQEMUCapsEvents[] = {
{ "DEVICE_DELETED", QEMU_CAPS_DEVICE_DEL_EVENT },
{ "MIGRATION", QEMU_CAPS_MIGRATION_EVENT },
{ "VSERPORT_CHANGE", QEMU_CAPS_VSERPORT_CHANGE },
+ { "DEVICE_TRAY_MOVED", QEMU_CAPS_DEVICE_TRAY_MOVED },
};
struct virQEMUCapsStringFlags virQEMUCapsObjectTypes[] = {
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index caf3d1b..c942be5 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -351,6 +351,7 @@ typedef enum {
QEMU_CAPS_QXL_VGA_VRAM64, /* -device qxl-vga.vram64_size_mb */
QEMU_CAPS_CHARDEV_LOGFILE, /* -chardev logfile=xxxx */
QEMU_CAPS_NAME_DEBUG_THREADS, /* Is -name debug-threads= available */
+ QEMU_CAPS_DEVICE_TRAY_MOVED, /* DEVICE_TRAY_MOVED event */
QEMU_CAPS_LAST /* this must always be the last item */
} virQEMUCapsFlags;
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index a58dd57..40d5683 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -202,6 +202,15 @@ qemuDomainChangeEjectableMedia(virQEMUDriverPtr driver,
if (qemuDomainObjExitMonitor(driver, vm) < 0)
goto cleanup;
+ /* skip all retrying if qemu doesn't notify us on tray change */
+ if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE_TRAY_MOVED)) {
+ if (rc == 0)
+ break;
+
+ if (rc < 0)
+ goto error;
+ }
+
if (rc < 0) {
/* we've already tried, error out */
if (ejectRetry)
diff --git a/tests/qemucapabilitiesdata/caps_1.2.2-1.caps b/tests/qemucapabilitiesdata/caps_1.2.2-1.caps
index 2e452ea..5fdc791 100644
--- a/tests/qemucapabilitiesdata/caps_1.2.2-1.caps
+++ b/tests/qemucapabilitiesdata/caps_1.2.2-1.caps
@@ -114,4 +114,5 @@
<flag name='virtio-net'/>
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_1.3.1-1.caps b/tests/qemucapabilitiesdata/caps_1.3.1-1.caps
index 5ad56aa..9402e68 100644
--- a/tests/qemucapabilitiesdata/caps_1.3.1-1.caps
+++ b/tests/qemucapabilitiesdata/caps_1.3.1-1.caps
@@ -129,4 +129,5 @@
<flag name='virtio-net'/>
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_1.4.2-1.caps b/tests/qemucapabilitiesdata/caps_1.4.2-1.caps
index d0341fd..1944dc3 100644
--- a/tests/qemucapabilitiesdata/caps_1.4.2-1.caps
+++ b/tests/qemucapabilitiesdata/caps_1.4.2-1.caps
@@ -130,4 +130,5 @@
<flag name='virtio-net'/>
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_1.5.3-1.caps b/tests/qemucapabilitiesdata/caps_1.5.3-1.caps
index 93ea687..d9d35ce 100644
--- a/tests/qemucapabilitiesdata/caps_1.5.3-1.caps
+++ b/tests/qemucapabilitiesdata/caps_1.5.3-1.caps
@@ -139,4 +139,5 @@
<flag name='virtio-net'/>
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_1.6.0-1.caps b/tests/qemucapabilitiesdata/caps_1.6.0-1.caps
index c25b076..1a52a6f 100644
--- a/tests/qemucapabilitiesdata/caps_1.6.0-1.caps
+++ b/tests/qemucapabilitiesdata/caps_1.6.0-1.caps
@@ -145,4 +145,5 @@
<flag name='virtio-net'/>
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_1.6.50-1.caps b/tests/qemucapabilitiesdata/caps_1.6.50-1.caps
index 30b70e9..973bdf5 100644
--- a/tests/qemucapabilitiesdata/caps_1.6.50-1.caps
+++ b/tests/qemucapabilitiesdata/caps_1.6.50-1.caps
@@ -145,4 +145,5 @@
<flag name='virtio-net'/>
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_2.1.1-1.caps b/tests/qemucapabilitiesdata/caps_2.1.1-1.caps
index 59d0323..254eb2a 100644
--- a/tests/qemucapabilitiesdata/caps_2.1.1-1.caps
+++ b/tests/qemucapabilitiesdata/caps_2.1.1-1.caps
@@ -163,4 +163,5 @@
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
<flag name='debug-threads'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_2.4.0-1.caps b/tests/qemucapabilitiesdata/caps_2.4.0-1.caps
index efbf9af..bb76ddb 100644
--- a/tests/qemucapabilitiesdata/caps_2.4.0-1.caps
+++ b/tests/qemucapabilitiesdata/caps_2.4.0-1.caps
@@ -174,4 +174,5 @@
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
<flag name='debug-threads'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_2.5.0-1.caps b/tests/qemucapabilitiesdata/caps_2.5.0-1.caps
index 5fd3bce..0734fbd 100644
--- a/tests/qemucapabilitiesdata/caps_2.5.0-1.caps
+++ b/tests/qemucapabilitiesdata/caps_2.5.0-1.caps
@@ -175,4 +175,5 @@
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
<flag name='debug-threads'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
diff --git a/tests/qemucapabilitiesdata/caps_2.6.0-1.caps b/tests/qemucapabilitiesdata/caps_2.6.0-1.caps
index 549759c..7c9eb13 100644
--- a/tests/qemucapabilitiesdata/caps_2.6.0-1.caps
+++ b/tests/qemucapabilitiesdata/caps_2.6.0-1.caps
@@ -178,4 +178,5 @@
<flag name='qxl.vram64_size_mb'/>
<flag name='qxl-vga.vram64_size_mb'/>
<flag name='debug-threads'/>
+ <flag name='device-tray-moved-event'/>
</qemuCaps>
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