[libvirt] [PATCH 05/23] qemu: add socket datagram capability

[marcandre.lureau at redhat.com]

From: Marc-André Lureau <marcandre.lureau at redhat.com>

Datagram socket is available since qemu 4.0, commit
fdec16e3c2a614e2861f3086b05d444b5d8c3406 ("net/socket: learn to talk
with a unix dgram socket").

Required for slirp-helper communication.

Signed-off-by: Marc-André Lureau <marcandre.lureau at redhat.com>
---
 src/qemu/qemu_capabilities.c                      | 8 ++++++++
 src/qemu/qemu_capabilities.h                      | 3 +++
 tests/qemucapabilitiesdata/caps_4.0.0.aarch64.xml | 1 +
 tests/qemucapabilitiesdata/caps_4.0.0.ppc64.xml   | 1 +
 tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml | 1 +
 tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml | 1 +
 tests/qemucapabilitiesdata/caps_4.0.0.s390x.xml   | 1 +
 tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml  | 1 +
 tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml  | 1 +
 9 files changed, 18 insertions(+)

diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 02e84edc15..2229aea4f5 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -533,6 +533,9 @@ VIR_ENUM_IMPL(virQEMUCaps,
               "x86-max-cpu",
               "cpu-unavailable-features",
               "canonical-cpu-features",
+
+              /* 335 */
+              "net-socket-dgram",
     );
 
 
@@ -4373,6 +4376,11 @@ virQEMUCapsInitQMPVersionCaps(virQEMUCapsPtr qemuCaps)
         ARCH_IS_PPC64(qemuCaps->arch)) {
         virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT);
     }
+
+    /* -net socket,fd= with dgram socket (for ex, with slirp helper) */
+    if (qemuCaps->version >= 3001092) {
+        virQEMUCapsSet(qemuCaps, QEMU_CAPS_NET_SOCKET_DGRAM);
+    }
 }
 
 
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 915ba6cb2e..564e3bfe55 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -515,6 +515,9 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
     QEMU_CAPS_CPU_UNAVAILABLE_FEATURES, /* "unavailable-features" CPU property */
     QEMU_CAPS_CANONICAL_CPU_FEATURES, /* avoid CPU feature aliases */
 
+    /* 335 */
+    QEMU_CAPS_NET_SOCKET_DGRAM, /* -net socket,fd= with dgram socket */
+
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;
 
diff --git a/tests/qemucapabilitiesdata/caps_4.0.0.aarch64.xml b/tests/qemucapabilitiesdata/caps_4.0.0.aarch64.xml
index 250b7edd52..a0846b0782 100644
--- a/tests/qemucapabilitiesdata/caps_4.0.0.aarch64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.0.0.aarch64.xml
@@ -163,6 +163,7 @@
   <flag name='machine.virt.iommu'/>
   <flag name='bitmap-merge'/>
   <flag name='nbd-bitmap'/>
+  <flag name='net-socket-dgram'/>
   <version>4000000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>61700758</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.0.0.ppc64.xml b/tests/qemucapabilitiesdata/caps_4.0.0.ppc64.xml
index 24b55002a6..6ebf003f51 100644
--- a/tests/qemucapabilitiesdata/caps_4.0.0.ppc64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.0.0.ppc64.xml
@@ -168,6 +168,7 @@
   <flag name='query-current-machine'/>
   <flag name='bitmap-merge'/>
   <flag name='nbd-bitmap'/>
+  <flag name='net-socket-dgram'/>
   <version>4000000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>42900758</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml b/tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml
index 230e1e7c99..8ba9e41dae 100644
--- a/tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml
+++ b/tests/qemucapabilitiesdata/caps_4.0.0.riscv32.xml
@@ -166,6 +166,7 @@
   <flag name='query-current-machine'/>
   <flag name='bitmap-merge'/>
   <flag name='nbd-bitmap'/>
+  <flag name='net-socket-dgram'/>
   <version>4000000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>0</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml b/tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml
index 4b2f4cf628..dd0e1ca6f6 100644
--- a/tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.0.0.riscv64.xml
@@ -166,6 +166,7 @@
   <flag name='query-current-machine'/>
   <flag name='bitmap-merge'/>
   <flag name='nbd-bitmap'/>
+  <flag name='net-socket-dgram'/>
   <version>4000000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>0</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.0.0.s390x.xml b/tests/qemucapabilitiesdata/caps_4.0.0.s390x.xml
index a1ac2587a0..9c50b1afdf 100644
--- a/tests/qemucapabilitiesdata/caps_4.0.0.s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_4.0.0.s390x.xml
@@ -131,6 +131,7 @@
   <flag name='query-current-machine'/>
   <flag name='bitmap-merge'/>
   <flag name='nbd-bitmap'/>
+  <flag name='net-socket-dgram'/>
   <version>4000000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>39100758</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml
index 716b756979..cd2f74b219 100644
--- a/tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.0.0.x86_64.xml
@@ -205,6 +205,7 @@
   <flag name='bitmap-merge'/>
   <flag name='nbd-bitmap'/>
   <flag name='x86-max-cpu'/>
+  <flag name='net-socket-dgram'/>
   <version>4000000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100758</microcodeVersion>
diff --git a/tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml
index 9cbf65b405..ca1d7dbbfe 100644
--- a/tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml
+++ b/tests/qemucapabilitiesdata/caps_4.1.0.x86_64.xml
@@ -207,6 +207,7 @@
   <flag name='x86-max-cpu'/>
   <flag name='cpu-unavailable-features'/>
   <flag name='canonical-cpu-features'/>
+  <flag name='net-socket-dgram'/>
   <version>4000050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>43100759</microcodeVersion>
-- 
2.22.0.214.g8dca754b1e