diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 81060d6730..9ccae54e04 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -2063,6 +2063,7 @@
</kvm>
<xen>
<e820_host state='on'/>
+ <passthrough state='on' mode='share_pt'/>
</xen>
<pvspinlock state='on'/>
<gic version='2'/>
@@ -2260,6 +2261,12 @@
on, off |
6.3.0 |
+
+ passthrough |
+ Enable IOMMU mappings allowing PCI passthrough) |
+ on, off; mode - optional string sync_pt or share_pt |
+ 6.3.0 |
+
pmu
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 2b5f844658..a6f6e8ab83 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -6349,6 +6349,18 @@
+
+
+
+
+
+
+ (sync_pt|share_pt)
+
+
+
+
+
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index dabbceb265..9f3362c934 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -209,7 +209,15 @@ VIR_ENUM_IMPL(virDomainKVM,
VIR_ENUM_IMPL(virDomainXen,
VIR_DOMAIN_XEN_LAST,
- "e820_host"
+ "e820_host",
+ "passthrough",
+);
+
+VIR_ENUM_IMPL(virDomainXenPassthroughMode,
+ VIR_DOMAIN_XEN_PASSTHROUGH_MODE_LAST,
+ "default",
+ "sync_pt",
+ "share_pt",
);
VIR_ENUM_IMPL(virDomainMsrsUnknown,
@@ -21182,6 +21190,8 @@ virDomainDefParseXML(xmlDocPtr xml,
if (def->features[VIR_DOMAIN_FEATURE_XEN] == VIR_TRISTATE_SWITCH_ON) {
int feature;
int value;
+ g_autofree char *ptval = NULL;
+
if ((n = virXPathNodeSet("./features/xen/*", ctxt, &nodes)) < 0)
goto error;
@@ -21194,28 +21204,54 @@ virDomainDefParseXML(xmlDocPtr xml,
goto error;
}
+ if (!(tmp = virXMLPropString(nodes[i], "state"))) {
+ virReportError(VIR_ERR_XML_ERROR,
+ _("missing 'state' attribute for "
+ "Xen feature '%s'"),
+ nodes[i]->name);
+ goto error;
+ }
+
+ if ((value = virTristateSwitchTypeFromString(tmp)) < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("invalid value of state argument "
+ "for Xen feature '%s'"),
+ nodes[i]->name);
+ goto error;
+ }
+
+ VIR_FREE(tmp);
+ def->xen_features[feature] = value;
+
switch ((virDomainXen) feature) {
case VIR_DOMAIN_XEN_E820_HOST:
- if (!(tmp = virXMLPropString(nodes[i], "state"))) {
- virReportError(VIR_ERR_XML_ERROR,
- _("missing 'state' attribute for "
- "Xen feature '%s'"),
- nodes[i]->name);
- goto error;
- }
-
- if ((value = virTristateSwitchTypeFromString(tmp)) < 0) {
- virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("invalid value of state argument "
- "for Xen feature '%s'"),
- nodes[i]->name);
- goto error;
- }
-
- VIR_FREE(tmp);
- def->xen_features[feature] = value;
break;
+ case VIR_DOMAIN_XEN_PASSTHROUGH:
+ if (value != VIR_TRISTATE_SWITCH_ON)
+ break;
+
+ if ((ptval = virXMLPropString(nodes[i], "mode"))) {
+ int mode = virDomainXenPassthroughModeTypeFromString(ptval);
+
+ if (mode < 0) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unsupported mode '%s' for Xen passthrough feature"),
+ ptval);
+ goto error;
+ }
+
+ if (mode != VIR_DOMAIN_XEN_PASSTHROUGH_MODE_SYNC_PT &&
+ mode != VIR_DOMAIN_XEN_PASSTHROUGH_MODE_SHARE_PT) {
+ virReportError(VIR_ERR_XML_ERROR, "%s",
+ _("'mode' attribute for Xen feature "
+ "'passthrough' must be 'sync_pt' or 'share_pt'"));
+ goto error;
+ }
+ def->xen_passthrough_mode = mode;
+ }
+ break;
+
/* coverity[dead_error_begin] */
case VIR_DOMAIN_XEN_LAST:
break;
@@ -23400,18 +23436,28 @@ virDomainDefFeaturesCheckABIStability(virDomainDefPtr src,
/* xen */
if (src->features[VIR_DOMAIN_FEATURE_XEN] == VIR_TRISTATE_SWITCH_ON) {
for (i = 0; i < VIR_DOMAIN_XEN_LAST; i++) {
+ if (src->xen_features[i] != dst->xen_features[i]) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("State of Xen feature '%s' differs: "
+ "source: '%s', destination: '%s'"),
+ virDomainXenTypeToString(i),
+ virTristateSwitchTypeToString(src->xen_features[i]),
+ virTristateSwitchTypeToString(dst->xen_features[i]));
+ return false;
+ }
switch ((virDomainXen) i) {
case VIR_DOMAIN_XEN_E820_HOST:
- if (src->xen_features[i] != dst->xen_features[i]) {
+ break;
+
+ case VIR_DOMAIN_XEN_PASSTHROUGH:
+ if (src->xen_passthrough_mode != dst->xen_passthrough_mode) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
- _("State of Xen feature '%s' differs: "
+ _("'mode' of Xen passthrough feature differs: "
"source: '%s', destination: '%s'"),
- virDomainXenTypeToString(i),
- virTristateSwitchTypeToString(src->xen_features[i]),
- virTristateSwitchTypeToString(dst->xen_features[i]));
+ virDomainXenPassthroughModeTypeToString(src->xen_passthrough_mode),
+ virDomainXenPassthroughModeTypeToString(dst->xen_passthrough_mode));
return false;
}
-
break;
/* coverity[dead_error_begin] */
@@ -29047,13 +29093,30 @@ virDomainDefFormatFeatures(virBufferPtr buf,
virBufferAddLit(&childBuf, "\n");
virBufferAdjustIndent(&childBuf, 2);
for (j = 0; j < VIR_DOMAIN_XEN_LAST; j++) {
+ if (def->xen_features[j] == VIR_TRISTATE_SWITCH_ABSENT)
+ continue;
+
+ virBufferAsprintf(&childBuf, "<%s state='%s'",
+ virDomainXenTypeToString(j),
+ virTristateSwitchTypeToString(
+ def->xen_features[j]));
+
switch ((virDomainXen) j) {
case VIR_DOMAIN_XEN_E820_HOST:
- if (def->xen_features[j])
- virBufferAsprintf(&childBuf, "<%s state='%s'/>\n",
- virDomainXenTypeToString(j),
- virTristateSwitchTypeToString(
- def->xen_features[j]));
+ virBufferAddLit(&childBuf, "/>\n");
+ break;
+ case VIR_DOMAIN_XEN_PASSTHROUGH:
+ if (def->xen_features[j] != VIR_TRISTATE_SWITCH_ON) {
+ virBufferAddLit(&childBuf, "/>\n");
+ break;
+ }
+ if (def->xen_passthrough_mode == VIR_DOMAIN_XEN_PASSTHROUGH_MODE_SYNC_PT ||
+ def->xen_passthrough_mode == VIR_DOMAIN_XEN_PASSTHROUGH_MODE_SHARE_PT) {
+ virBufferEscapeString(&childBuf, " mode='%s'/>\n",
+ virDomainXenPassthroughModeTypeToString(def->xen_passthrough_mode));
+ } else {
+ virBufferAddLit(&childBuf, "/>\n");
+ }
break;
/* coverity[dead_error_begin] */
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index fde88b7389..bfd1bbb532 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -1862,10 +1862,19 @@ typedef enum {
typedef enum {
VIR_DOMAIN_XEN_E820_HOST = 0,
+ VIR_DOMAIN_XEN_PASSTHROUGH,
VIR_DOMAIN_XEN_LAST
} virDomainXen;
+typedef enum {
+ VIR_DOMAIN_XEN_PASSTHROUGH_MODE_DEFAULT = 0,
+ VIR_DOMAIN_XEN_PASSTHROUGH_MODE_SYNC_PT,
+ VIR_DOMAIN_XEN_PASSTHROUGH_MODE_SHARE_PT,
+
+ VIR_DOMAIN_XEN_PASSTHROUGH_MODE_LAST
+} virDomainXenPassthroughMode;
+
typedef enum {
VIR_DOMAIN_CAPABILITIES_POLICY_DEFAULT = 0,
VIR_DOMAIN_CAPABILITIES_POLICY_ALLOW,
@@ -2492,6 +2501,7 @@ struct _virDomainDef {
int kvm_features[VIR_DOMAIN_KVM_LAST];
int msrs_features[VIR_DOMAIN_MSRS_LAST];
int xen_features[VIR_DOMAIN_XEN_LAST];
+ int xen_passthrough_mode;
unsigned int hyperv_spinlocks;
int hyperv_stimer_direct;
virGICVersion gic_version;
@@ -3538,6 +3548,7 @@ VIR_ENUM_DECL(virDomainGraphicsVNCSharePolicy);
VIR_ENUM_DECL(virDomainHyperv);
VIR_ENUM_DECL(virDomainKVM);
VIR_ENUM_DECL(virDomainXen);
+VIR_ENUM_DECL(virDomainXenPassthroughMode);
VIR_ENUM_DECL(virDomainMsrsUnknown);
VIR_ENUM_DECL(virDomainRNGModel);
VIR_ENUM_DECL(virDomainRNGBackend);