[libvirt] [PATCH v5 2/7] lib: Add API to edit domain's managed save state xml configuration
Peter Krempa
pkrempa at redhat.com
Tue Aug 29 11:49:10 UTC 2017
From: Kothapally Madhu Pavan <kmp at linux.vnet.ibm.com>
Similar to domainSaveImageDefineXML this commit adds domainManagedSaveDefineXML
API which allows to edit domain's managed save state xml configuration.
Signed-off-by: Kothapally Madhu Pavan <kmp at linux.vnet.ibm.com>
---
include/libvirt/libvirt-domain.h | 4 +++
src/driver-hypervisor.h | 6 +++++
src/libvirt-domain.c | 57 ++++++++++++++++++++++++++++++++++++++++
src/libvirt_public.syms | 1 +
src/remote/remote_driver.c | 1 +
src/remote/remote_protocol.x | 15 ++++++++++-
src/remote_protocol-structs | 6 +++++
7 files changed, 89 insertions(+), 1 deletion(-)
diff --git a/include/libvirt/libvirt-domain.h b/include/libvirt/libvirt-domain.h
index 4c5a7f7b5..030a62c43 100644
--- a/include/libvirt/libvirt-domain.h
+++ b/include/libvirt/libvirt-domain.h
@@ -1215,6 +1215,10 @@ int virDomainManagedSaveRemove(virDomainPtr dom,
unsigned int flags);
char * virDomainManagedSaveGetXMLDesc(virDomainPtr domain,
unsigned int flags);
+int virDomainManagedSaveDefineXML(virDomainPtr domain,
+ const char *dxml,
+ unsigned int flags);
+
/*
* Domain core dump
diff --git a/src/driver-hypervisor.h b/src/driver-hypervisor.h
index a3f9cbc31..6c3f7d795 100644
--- a/src/driver-hypervisor.h
+++ b/src/driver-hypervisor.h
@@ -754,6 +754,11 @@ typedef char *
(*virDrvDomainManagedSaveGetXMLDesc)(virDomainPtr domain,
unsigned int flags);
+typedef int
+(*virDrvDomainManagedSaveDefineXML)(virDomainPtr domain,
+ const char *dxml,
+ unsigned int flags);
+
typedef virDomainSnapshotPtr
(*virDrvDomainSnapshotCreateXML)(virDomainPtr domain,
const char *xmlDesc,
@@ -1433,6 +1438,7 @@ struct _virHypervisorDriver {
virDrvDomainHasManagedSaveImage domainHasManagedSaveImage;
virDrvDomainManagedSaveRemove domainManagedSaveRemove;
virDrvDomainManagedSaveGetXMLDesc domainManagedSaveGetXMLDesc;
+ virDrvDomainManagedSaveDefineXML domainManagedSaveDefineXML;
virDrvDomainSnapshotCreateXML domainSnapshotCreateXML;
virDrvDomainSnapshotGetXMLDesc domainSnapshotGetXMLDesc;
virDrvDomainSnapshotNum domainSnapshotNum;
diff --git a/src/libvirt-domain.c b/src/libvirt-domain.c
index f43ab2478..ca5a1536a 100644
--- a/src/libvirt-domain.c
+++ b/src/libvirt-domain.c
@@ -9389,6 +9389,63 @@ virDomainManagedSaveGetXMLDesc(virDomainPtr domain, unsigned int flags)
}
+/**
+ * virDomainManagedSaveDefineXML:
+ * @domain: a domain object
+ * @dxml: XML config for adjusting guest xml used on restore
+ * @flags: bitwise-OR of virDomainSaveRestoreFlags
+ *
+ * This updates the definition of a domain stored in a saved state
+ * file.
+ *
+ * @dxml can be used to alter host-specific portions of the domain XML
+ * that will be used on the next start of the domain. For example, it is
+ * possible to alter the backing filename that is associated with a
+ * disk device.
+ *
+ * Normally, the saved state file will remember whether the domain was
+ * running or paused, and restore defaults to the same state.
+ * Specifying VIR_DOMAIN_SAVE_RUNNING or VIR_DOMAIN_SAVE_PAUSED in
+ * @flags will override the default saved into the file; omitting both
+ * leaves the file's default unchanged. These two flags are mutually
+ * exclusive.
+ *
+ * Returns 0 in case of success and -1 in case of failure.
+ */
+int
+virDomainManagedSaveDefineXML(virDomainPtr domain, const char *dxml,
+ unsigned int flags)
+{
+ virConnectPtr conn;
+
+ VIR_DOMAIN_DEBUG(domain, "flags=%x", flags);
+
+ virResetLastError();
+
+ VIR_EXCLUSIVE_FLAGS_GOTO(VIR_DOMAIN_SAVE_RUNNING,
+ VIR_DOMAIN_SAVE_PAUSED,
+ error);
+
+ virCheckDomainReturn(domain, -1);
+ conn = domain->conn;
+
+ if (conn->driver->domainManagedSaveDefineXML) {
+ int ret;
+ ret = conn->driver->domainManagedSaveDefineXML(domain, dxml, flags);
+
+ if (ret < 0)
+ goto error;
+ return ret;
+ }
+
+ virReportUnsupportedError();
+
+ error:
+ virDispatchError(domain->conn);
+ return -1;
+}
+
+
/**
* virDomainOpenConsole:
* @dom: a domain object
diff --git a/src/libvirt_public.syms b/src/libvirt_public.syms
index 58b9b4910..498601943 100644
--- a/src/libvirt_public.syms
+++ b/src/libvirt_public.syms
@@ -772,5 +772,6 @@ LIBVIRT_3.7.0 {
global:
virDomainMigrateGetMaxDowntime;
virDomainManagedSaveGetXMLDesc;
+ virDomainManagedSaveDefineXML;
} LIBVIRT_3.4.0;
# .... define new API here using predicted next version number ....
diff --git a/src/remote/remote_driver.c b/src/remote/remote_driver.c
index c64f5b337..7f814cd4f 100644
--- a/src/remote/remote_driver.c
+++ b/src/remote/remote_driver.c
@@ -8412,6 +8412,7 @@ static virHypervisorDriver hypervisor_driver = {
.domainHasManagedSaveImage = remoteDomainHasManagedSaveImage, /* 0.8.0 */
.domainManagedSaveRemove = remoteDomainManagedSaveRemove, /* 0.8.0 */
.domainManagedSaveGetXMLDesc = remoteDomainManagedSaveGetXMLDesc, /* 3.7.0 */
+ .domainManagedSaveDefineXML = remoteDomainManagedSaveDefineXML, /* 3.7.0 */
.domainSnapshotCreateXML = remoteDomainSnapshotCreateXML, /* 0.8.0 */
.domainSnapshotGetXMLDesc = remoteDomainSnapshotGetXMLDesc, /* 0.8.0 */
.domainSnapshotNum = remoteDomainSnapshotNum, /* 0.8.0 */
diff --git a/src/remote/remote_protocol.x b/src/remote/remote_protocol.x
index 76033acc9..07463b781 100644
--- a/src/remote/remote_protocol.x
+++ b/src/remote/remote_protocol.x
@@ -2565,6 +2565,12 @@ struct remote_domain_managed_save_get_xml_desc_ret {
remote_nonnull_string xml;
};
+struct remote_domain_managed_save_define_xml_args {
+ remote_nonnull_domain dom;
+ remote_string dxml;
+ unsigned int flags;
+};
+
struct remote_domain_snapshot_create_xml_args {
remote_nonnull_domain dom;
remote_nonnull_string xml_desc;
@@ -6095,5 +6101,12 @@ enum remote_procedure {
* @acl: domain:read
* @acl: domain:read_secure:VIR_DOMAIN_XML_SECURE
*/
- REMOTE_PROC_DOMAIN_MANAGED_SAVE_GET_XML_DESC = 388
+ REMOTE_PROC_DOMAIN_MANAGED_SAVE_GET_XML_DESC = 388,
+
+ /**
+ * @generate: both
+ * @acl: domain:write
+ * @acl: domain:hibernate
+ */
+ REMOTE_PROC_DOMAIN_MANAGED_SAVE_DEFINE_XML = 389
};
diff --git a/src/remote_protocol-structs b/src/remote_protocol-structs
index 4803a46f2..6038bf138 100644
--- a/src/remote_protocol-structs
+++ b/src/remote_protocol-structs
@@ -1977,6 +1977,11 @@ struct remote_domain_managed_save_get_xml_desc_args {
struct remote_domain_managed_save_get_xml_desc_ret {
remote_nonnull_string xml;
};
+struct remote_domain_managed_save_define_xml_args {
+ remote_nonnull_domain dom;
+ remote_string dxml;
+ u_int flags;
+};
struct remote_domain_snapshot_create_xml_args {
remote_nonnull_domain dom;
remote_nonnull_string xml_desc;
@@ -3249,4 +3254,5 @@ enum remote_procedure {
REMOTE_PROC_DOMAIN_SET_BLOCK_THRESHOLD = 386,
REMOTE_PROC_DOMAIN_MIGRATE_GET_MAX_DOWNTIME = 387,
REMOTE_PROC_DOMAIN_MANAGED_SAVE_GET_XML_DESC = 388,
+ REMOTE_PROC_DOMAIN_MANAGED_SAVE_DEFINE_XML = 389,
};
--
2.14.1
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