From: Christian Schoenebeck <qemu_oss@crudebyte.com>
Date: Mon, 30 Mar 2020 18:04:47 +0000 (+0200)
Subject: qemu: capabilities: add QEMU_CAPS_FSDEV_MULTIDEVS
X-Git-Tag: v6.3.0-rc1~244
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=8fe6e82d1c5d0a9fbcdc8b3536648910c6184fea;p=thirdparty%2Flibvirt.git

qemu: capabilities: add QEMU_CAPS_FSDEV_MULTIDEVS

The QEMU 9pfs 'multidevs' option exists since QEMU 4.2. Probe QEMU's
command line set though to check whether this option is really
available, and if yes enable this new QEMU_CAPS_FSDEV_MULTIDEVS
capability on libvirt side.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
---

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 73a8856f34..994f1fd179 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -568,6 +568,9 @@ VIR_ENUM_IMPL(virQEMUCaps,
               "blockdev-snapshot.allow-write-only-overlay",
               "blockdev-reopen",
               "storage.werror",
+
+              /* 360 */
+              "fsdev.multidevs",
     );
 
 
@@ -3160,6 +3163,7 @@ static struct virQEMUCapsCommandLineProps virQEMUCapsCommandLine[] = {
     { "chardev", "fd", QEMU_CAPS_CHARDEV_FD_PASS },
     { "overcommit", NULL, QEMU_CAPS_OVERCOMMIT },
     { "smp-opts", "dies", QEMU_CAPS_SMP_DIES },
+    { "fsdev", "multidevs", QEMU_CAPS_FSDEV_MULTIDEVS },
 };
 
 static int
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 51ec1a5165..d247e19710 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -550,6 +550,9 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
     QEMU_CAPS_BLOCKDEV_REOPEN, /* 'blockdev-reopen' qmp command is supported */
     QEMU_CAPS_STORAGE_WERROR, /* virtio-blk,scsi-hd.werror */
 
+    /* 360 */
+    QEMU_CAPS_FSDEV_MULTIDEVS, /* fsdev.multidevs */
+
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;
 
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml b/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
index de16451b8b..eac189c4e2 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.aarch64.xml
@@ -180,6 +180,7 @@
   <flag name='virtio-net.failover'/>
   <flag name='vhost-user-fs'/>
   <flag name='storage.werror'/>
+  <flag name='fsdev.multidevs'/>
   <version>4001050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>61700242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml b/tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml
index fa3c2ef3e4..47894de63f 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.s390x.xml
@@ -139,6 +139,7 @@
   <flag name='rng-builtin'/>
   <flag name='vhost-user-fs'/>
   <flag name='storage.werror'/>
+  <flag name='fsdev.multidevs'/>
   <version>4001050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>39100242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
index c1b73f4ad5..ad904d86b0 100644
--- a/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.2.0.x86_64.xml
@@ -224,6 +224,7 @@
   <flag name='virtio-net.failover'/>
   <flag name='vhost-user-fs'/>
   <flag name='storage.werror'/>
+  <flag name='fsdev.multidevs'/>
   <version>4002000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100242</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml b/tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml
index 53fcd750d9..30664c6241 100644
--- a/tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml
@@ -182,6 +182,7 @@
   <flag name='cpu.kvm-no-adjvtime'/>
   <flag name='vhost-user-fs'/>
   <flag name='storage.werror'/>
+  <flag name='fsdev.multidevs'/>
   <version>4002050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>61700241</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml b/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml
index 2fb5bb49a9..a68004823f 100644
--- a/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml
+++ b/tests/qemucapabilitiesdata/caps_5.0.0.ppc64.xml
@@ -190,6 +190,7 @@
   <flag name='query-named-block-nodes.flat'/>
   <flag name='blockdev-snapshot.allow-write-only-overlay'/>
   <flag name='storage.werror'/>
+  <flag name='fsdev.multidevs'/>
   <version>4002050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>42900241</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml
index cb2d58b635..df3557d1ad 100644
--- a/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_5.0.0.x86_64.xml
@@ -227,6 +227,7 @@
   <flag name='query-named-block-nodes.flat'/>
   <flag name='blockdev-snapshot.allow-write-only-overlay'/>
   <flag name='storage.werror'/>
+  <flag name='fsdev.multidevs'/>
   <version>4002091</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100241</microcodeVersion>