qemu: format machine virt ras feature and test it

Resolves: https://issues.redhat.com/browse/RHEL-7489
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

src/qemu/qemu_command.c

@@ -6858,6 +6858,11 @@ qemuAppendDomainFeaturesMachineParam(virBuffer *buf,
         virBufferAsprintf(buf, ",cap-ibs=%s", str);
     }
 
+    if (def->features[VIR_DOMAIN_FEATURE_RAS] != VIR_TRISTATE_SWITCH_ABSENT) {
+        const char *str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_RAS]);
+        virBufferAsprintf(buf, ",ras=%s", str);
+    }
+
     return 0;
 }
 

tests/qemuxmlconfdata/aarch64-features-ras.aarch64-latest.args

@@ -0,0 +1,31 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/var/lib/libvirt/qemu/domain--1-aarch64test \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/var/lib/libvirt/qemu/domain--1-aarch64test/.local/share \
+XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain--1-aarch64test/.cache \
+XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain--1-aarch64test/.config \
+/usr/bin/qemu-system-aarch64 \
+-name guest=aarch64test,debug-threads=on \
+-S \
+-object '{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain--1-aarch64test/master-key.aes"}' \
+-machine virt,usb=off,gic-version=3,ras=on,dump-guest-core=off,memory-backend=mach-virt.ram,acpi=off \
+-accel kvm \
+-cpu host \
+-m size=1048576k \
+-object '{"qom-type":"memory-backend-ram","id":"mach-virt.ram","size":1073741824}' \
+-overcommit mem-lock=off \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid 1ccfd97d-5eb4-478a-bbe6-88d254c16db7 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server=on,wait=off \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-boot strict=on \
+-audiodev '{"id":"audio1","driver":"none"}' \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
+-msg timestamp=on

tests/qemuxmlconfdata/aarch64-features-ras.aarch64-latest.xml

@@ -0,0 +1 @@
+aarch64-features-ras.xml

tests/qemuxmlconfdata/aarch64-features-ras.xml

@@ -0,0 +1,26 @@
+<domain type='kvm'>
+  <name>aarch64test</name>
+  <uuid>1ccfd97d-5eb4-478a-bbe6-88d254c16db7</uuid>
+  <memory unit='KiB'>1048576</memory>
+  <currentMemory unit='KiB'>1048576</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='aarch64' machine='virt'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <features>
+    <gic version='3'/>
+    <ras state='on'/>
+  </features>
+  <cpu mode='host-passthrough' check='none'/>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-aarch64</emulator>
+    <controller type='usb' index='0' model='none'/>
+    <controller type='pci' index='0' model='pcie-root'/>
+    <audio id='1' type='none'/>
+  </devices>
+</domain>

tests/qemuxmlconftest.c

@@ -2643,6 +2643,8 @@ mymain(void)
     /* SVE aarch64 CPU features work on modern QEMU */
     DO_TEST_CAPS_ARCH_LATEST("aarch64-features-sve", "aarch64");
 
+    DO_TEST_CAPS_ARCH_LATEST("aarch64-features-ras", "aarch64");
+
     DO_TEST_CAPS_ARCH_LATEST("clock-timer-armvtimer", "aarch64");
 
     qemuTestSetHostArch(&driver, VIR_ARCH_NONE);