[libvirt] [PATCH 1/2] caps: Add capability for maximum size of the qcow2 L2 table cache

Lin Ma lma at suse.com
Wed Nov 15 01:58:57 UTC 2017 

Signed-off-by: Lin Ma <lma at suse.com>
---
 src/qemu/qemu_capabilities.c                             | 5 +++++
 src/qemu/qemu_capabilities.h                             | 1 +
 tests/qemucapabilitiesdata/caps_2.10.0-gicv2.aarch64.xml | 1 +
 tests/qemucapabilitiesdata/caps_2.10.0-gicv3.aarch64.xml | 1 +
 tests/qemucapabilitiesdata/caps_2.10.0.ppc64.xml         | 1 +
 tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml         | 1 +
 tests/qemucapabilitiesdata/caps_2.10.0.x86_64.xml        | 1 +
 tests/qemucapabilitiesdata/caps_2.5.0.x86_64.xml         | 1 +
 tests/qemucapabilitiesdata/caps_2.6.0-gicv2.aarch64.xml  | 1 +
 tests/qemucapabilitiesdata/caps_2.6.0-gicv3.aarch64.xml  | 1 +
 tests/qemucapabilitiesdata/caps_2.6.0.ppc64.xml          | 1 +
 tests/qemucapabilitiesdata/caps_2.6.0.x86_64.xml         | 1 +
 tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml          | 1 +
 tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml         | 1 +
 tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml          | 1 +
 tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml         | 1 +
 tests/qemucapabilitiesdata/caps_2.9.0.ppc64.xml          | 1 +
 tests/qemucapabilitiesdata/caps_2.9.0.s390x.xml          | 1 +
 tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml         | 1 +
 19 files changed, 23 insertions(+)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 1badadb..e12825d 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -444,6 +444,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
               "vxhs",
               "virtio-blk.num-queues",
               "machine.pseries.resize-hpt",
+              "drive-l2-cache-size",
     );
 
 
@@ -3193,6 +3194,7 @@ static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = {
     { "machine", "loadparm", QEMU_CAPS_LOADPARM },
     { "vnc", "vnc", QEMU_CAPS_VNC_MULTI_SERVERS },
     { "chardev", "reconnect", QEMU_CAPS_CHARDEV_RECONNECT },
+    { "drive", "l2-cache-size", QEMU_CAPS_DRIVE_L2_CACHE_SIZE },
 };
 
 static int
@@ -4773,6 +4775,9 @@ virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,
     if (qemuCaps->version >= 2004050)
         virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACH_VIRT_GIC_VERSION);
 
+    if (qemuCaps->version >= 2005000)
+        virQEMUCapsSet(qemuCaps, QEMU_CAPS_DRIVE_L2_CACHE_SIZE);
+
     /* no way to query if -machine kernel_irqchip supports split */
     if (qemuCaps->version >= 2006000)
         virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_KERNEL_IRQCHIP_SPLIT);
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index f0e2e90..4f05391 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -430,6 +430,7 @@ typedef enum {
     QEMU_CAPS_VXHS, /* -drive file.driver=vxhs via query-qmp-schema */
     QEMU_CAPS_VIRTIO_BLK_NUM_QUEUES, /* virtio-blk-*.num-queues */
     QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT, /* -machine pseries,resize-hpt */
+    QEMU_CAPS_DRIVE_L2_CACHE_SIZE, /* Is -drive l2-cache-size= avail */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;
diff --git a/tests/qemucapabilitiesdata/caps_2.10.0-gicv2.aarch64.xml b/tests/qemucapabilitiesdata/caps_2.10.0-gicv2.aarch64.xml
index 9f9dceb..3fc48a0 100644
--- a/tests/qemucapabilitiesdata/caps_2.10.0-gicv2.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.10.0-gicv2.aarch64.xml
@@ -180,6 +180,7 @@
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='vxhs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2010000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.10.0)</package>
diff --git a/tests/qemucapabilitiesdata/caps_2.10.0-gicv3.aarch64.xml b/tests/qemucapabilitiesdata/caps_2.10.0-gicv3.aarch64.xml
index 3c2d2ee..e583646 100644
--- a/tests/qemucapabilitiesdata/caps_2.10.0-gicv3.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.10.0-gicv3.aarch64.xml
@@ -180,6 +180,7 @@
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='vxhs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2010000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.10.0)</package>
diff --git a/tests/qemucapabilitiesdata/caps_2.10.0.ppc64.xml b/tests/qemucapabilitiesdata/caps_2.10.0.ppc64.xml
index b0ee3f1..4bf90bf 100644
--- a/tests/qemucapabilitiesdata/caps_2.10.0.ppc64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.10.0.ppc64.xml
@@ -178,6 +178,7 @@
   <flag name='vxhs'/>
   <flag name='virtio-blk.num-queues'/>
   <flag name='machine.pseries.resize-hpt'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2010000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.10.0)</package>
diff --git a/tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml b/tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml
index 7e44652..b40a458 100644
--- a/tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml
@@ -141,6 +141,7 @@
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='vxhs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2010000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.10.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_2.10.0.x86_64.xml
index ddbd8c3..c5e59e4 100644
--- a/tests/qemucapabilitiesdata/caps_2.10.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.10.0.x86_64.xml
@@ -224,6 +224,7 @@
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='vxhs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2010000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.10.0)</package>
diff --git a/tests/qemucapabilitiesdata/caps_2.5.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_2.5.0.x86_64.xml
index 2ba40fc..78d4b45 100644
--- a/tests/qemucapabilitiesdata/caps_2.5.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.5.0.x86_64.xml
@@ -194,6 +194,7 @@
   <flag name='vnc-multi-servers'/>
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2005000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.6.0-gicv2.aarch64.xml b/tests/qemucapabilitiesdata/caps_2.6.0-gicv2.aarch64.xml
index 0b34fa3..2382d9c 100644
--- a/tests/qemucapabilitiesdata/caps_2.6.0-gicv2.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.6.0-gicv2.aarch64.xml
@@ -172,6 +172,7 @@
   <flag name='vnc-multi-servers'/>
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2006000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.6.0-gicv3.aarch64.xml b/tests/qemucapabilitiesdata/caps_2.6.0-gicv3.aarch64.xml
index d41d578..04dbd2f 100644
--- a/tests/qemucapabilitiesdata/caps_2.6.0-gicv3.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.6.0-gicv3.aarch64.xml
@@ -172,6 +172,7 @@
   <flag name='vnc-multi-servers'/>
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2006000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.6.0.ppc64.xml b/tests/qemucapabilitiesdata/caps_2.6.0.ppc64.xml
index f1c9fc9..51a70d3 100644
--- a/tests/qemucapabilitiesdata/caps_2.6.0.ppc64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.6.0.ppc64.xml
@@ -167,6 +167,7 @@
   <flag name='vnc-multi-servers'/>
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2006000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.6.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_2.6.0.x86_64.xml
index bdf006f..70e1e1e 100644
--- a/tests/qemucapabilitiesdata/caps_2.6.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.6.0.x86_64.xml
@@ -204,6 +204,7 @@
   <flag name='vnc-multi-servers'/>
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2006000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml b/tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml
index c5dfa2a..9d9a5e2 100644
--- a/tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml
@@ -135,6 +135,7 @@
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2007000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml
index 59adff6..563667d 100644
--- a/tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml
@@ -208,6 +208,7 @@
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2007000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.7.0)</package>
diff --git a/tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml b/tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml
index 6d26896..d21a6b8 100644
--- a/tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml
@@ -137,6 +137,7 @@
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2007093</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml
index 3165b2d..2e12bbe 100644
--- a/tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml
@@ -210,6 +210,7 @@
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2008000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.8.0)</package>
diff --git a/tests/qemucapabilitiesdata/caps_2.9.0.ppc64.xml b/tests/qemucapabilitiesdata/caps_2.9.0.ppc64.xml
index 786cea8..3a6064b 100644
--- a/tests/qemucapabilitiesdata/caps_2.9.0.ppc64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.9.0.ppc64.xml
@@ -173,6 +173,7 @@
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2009000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.9.0)</package>
diff --git a/tests/qemucapabilitiesdata/caps_2.9.0.s390x.xml b/tests/qemucapabilitiesdata/caps_2.9.0.s390x.xml
index 896ed50..b23da35 100644
--- a/tests/qemucapabilitiesdata/caps_2.9.0.s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_2.9.0.s390x.xml
@@ -138,6 +138,7 @@
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2009000</version>
   <kvmVersion>0</kvmVersion>
   <package></package>
diff --git a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml
index 05f9dc0..07f9cd5 100644
--- a/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml
@@ -221,6 +221,7 @@
   <flag name='chardev-reconnect'/>
   <flag name='virtio-gpu.max_outputs'/>
   <flag name='virtio-blk.num-queues'/>
+  <flag name='drive-l2-cache-size'/>
   <version>2009000</version>
   <kvmVersion>0</kvmVersion>
   <package> (v2.9.0)</package>
-- 
2.9.2

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