diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 80b403d54d..7ec57135f6 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -2059,6 +2059,7 @@
<tseg unit='MiB'>48</tseg>
</smm>
<htm state='on'/>
+ <ccf-assist state='on'/>
<msrs unknown='ignore'/>
</features>
...
@@ -2357,6 +2358,14 @@
will not be ignored.
Since 5.1.0 (bhyve only)
+
ccf-assist
+ Configure ccf-assist (Count Cache Flush Assist) availability for
+ pSeries guests.
+ Possible values for the state
attribute
+ are on
and off
. If the attribute is not
+ defined, the hypervisor default will be used.
+ Since 5.9.0 (QEMU/KVM only)
+
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index cc2c6899ec..ead5a25068 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -5121,6 +5121,11 @@
+
+
+
+
+
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 3dd0d0f5c8..c1705a07b6 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -171,6 +171,7 @@ VIR_ENUM_IMPL(virDomainFeature,
"htm",
"nested-hv",
"msrs",
+ "ccf-assist",
);
VIR_ENUM_IMPL(virDomainCapabilitiesPolicy,
@@ -20398,6 +20399,7 @@ virDomainDefParseXML(xmlDocPtr xml,
case VIR_DOMAIN_FEATURE_HTM:
case VIR_DOMAIN_FEATURE_NESTED_HV:
+ case VIR_DOMAIN_FEATURE_CCF_ASSIST:
if (!(tmp = virXMLPropString(nodes[i], "state"))) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("missing state attribute '%s' of feature '%s'"),
@@ -22623,6 +22625,7 @@ virDomainDefFeaturesCheckABIStability(virDomainDefPtr src,
case VIR_DOMAIN_FEATURE_VMCOREINFO:
case VIR_DOMAIN_FEATURE_HTM:
case VIR_DOMAIN_FEATURE_NESTED_HV:
+ case VIR_DOMAIN_FEATURE_CCF_ASSIST:
if (src->features[i] != dst->features[i]) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("State of feature '%s' differs: "
@@ -28189,6 +28192,7 @@ virDomainDefFormatFeatures(virBufferPtr buf,
case VIR_DOMAIN_FEATURE_VMPORT:
case VIR_DOMAIN_FEATURE_HTM:
case VIR_DOMAIN_FEATURE_NESTED_HV:
+ case VIR_DOMAIN_FEATURE_CCF_ASSIST:
switch ((virTristateSwitch) def->features[i]) {
case VIR_TRISTATE_SWITCH_LAST:
case VIR_TRISTATE_SWITCH_ABSENT:
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 23474807a4..b7ae57aa9d 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1756,6 +1756,7 @@ typedef enum {
VIR_DOMAIN_FEATURE_HTM,
VIR_DOMAIN_FEATURE_NESTED_HV,
VIR_DOMAIN_FEATURE_MSRS,
+ VIR_DOMAIN_FEATURE_CCF_ASSIST,
VIR_DOMAIN_FEATURE_LAST
} virDomainFeature;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 817cf952d5..50cc3bdf7c 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -7412,6 +7412,26 @@ qemuBuildMachineCommandLine(virCommandPtr cmd,
virBufferAsprintf(&buf, ",cap-nested-hv=%s", str);
}
+ if (def->features[VIR_DOMAIN_FEATURE_CCF_ASSIST] != VIR_TRISTATE_SWITCH_ABSENT) {
+ const char *str;
+
+ if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("ccf-assist configuration is not supported by this "
+ "QEMU binary"));
+ return -1;
+ }
+
+ str = virTristateSwitchTypeToString(def->features[VIR_DOMAIN_FEATURE_CCF_ASSIST]);
+ if (!str) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+ _("Invalid setting for ccf-assist state"));
+ return -1;
+ }
+
+ virBufferAsprintf(&buf, ",cap-ccf-assist=%s", str);
+ }
+
if (cpu && cpu->model &&
cpu->mode == VIR_CPU_MODE_HOST_MODEL &&
qemuDomainIsPSeries(def) &&
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index bc54393977..dc7568fe18 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -4730,6 +4730,7 @@ qemuDomainDefValidateFeatures(const virDomainDef *def,
case VIR_DOMAIN_FEATURE_HPT:
case VIR_DOMAIN_FEATURE_HTM:
case VIR_DOMAIN_FEATURE_NESTED_HV:
+ case VIR_DOMAIN_FEATURE_CCF_ASSIST:
if (def->features[i] != VIR_TRISTATE_SWITCH_ABSENT &&
!qemuDomainIsPSeries(def)) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
diff --git a/tests/qemuxml2argvdata/pseries-features.args b/tests/qemuxml2argvdata/pseries-features.args
index 9fde54b37a..7aa357a54e 100644
--- a/tests/qemuxml2argvdata/pseries-features.args
+++ b/tests/qemuxml2argvdata/pseries-features.args
@@ -11,7 +11,7 @@ QEMU_AUDIO_DRV=none \
-name guest \
-S \
-machine pseries,accel=tcg,usb=off,dump-guest-core=off,resize-hpt=required,\
-cap-hpt-max-page-size=1048576k,cap-htm=on,cap-nested-hv=off \
+cap-hpt-max-page-size=1048576k,cap-htm=on,cap-nested-hv=off,cap-ccf-assist=on \
-m 512 \
-realtime mlock=off \
-smp 1,sockets=1,cores=1,threads=1 \
diff --git a/tests/qemuxml2argvdata/pseries-features.xml b/tests/qemuxml2argvdata/pseries-features.xml
index 6f7d32b065..8ccc1b73d8 100644
--- a/tests/qemuxml2argvdata/pseries-features.xml
+++ b/tests/qemuxml2argvdata/pseries-features.xml
@@ -12,6 +12,7 @@
+
/usr/bin/qemu-system-ppc64
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index dbb18ebd71..834a289532 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1960,6 +1960,7 @@ mymain(void)
QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE,
QEMU_CAPS_MACHINE_PSERIES_CAP_HTM,
QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV,
+ QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST,
QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT);
DO_TEST_FAILURE("pseries-features",
QEMU_CAPS_DEVICE_SPAPR_PCI_HOST_BRIDGE);
diff --git a/tests/qemuxml2xmloutdata/pseries-features.xml b/tests/qemuxml2xmloutdata/pseries-features.xml
index 7e12bc9c03..a5df840394 100644
--- a/tests/qemuxml2xmloutdata/pseries-features.xml
+++ b/tests/qemuxml2xmloutdata/pseries-features.xml
@@ -14,6 +14,7 @@
+
destroy
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index d5c66d8791..b9364f942f 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -608,6 +608,7 @@ mymain(void)
QEMU_CAPS_MACHINE_PSERIES_CAP_HPT_MAX_PAGE_SIZE,
QEMU_CAPS_MACHINE_PSERIES_CAP_HTM,
QEMU_CAPS_MACHINE_PSERIES_CAP_NESTED_HV,
+ QEMU_CAPS_MACHINE_PSERIES_CAP_CCF_ASSIST,
QEMU_CAPS_MACHINE_PSERIES_RESIZE_HPT);
DO_TEST("pseries-serial-native",