[Libvirt-cim] [PATCHv2 5/5] VSSM: Set default values based on libvirt capabilities on DefineSystem calls
Viktor Mihajlovski
mihajlov at linux.vnet.ibm.com
Thu Aug 29 15:18:53 UTC 2013
From: Boris Fiuczynski <fiuczy at linux.vnet.ibm.com>
In the DefineSystem call the architecture, machine and emulator for KVM are set
to the hypervisor-specific default values if they did not get provided.
This now allows architecture based decision making in the CIM providers to
work for all platforms.
Signed-off-by: Boris Fiuczynski <fiuczy at linux.vnet.ibm.com>
Reviewed-by: Viktor Mihajlovski <mihajlov at linux.vnet.ibm.com>
---
src/Virt_VirtualSystemManagementService.c | 161 ++++++++++++++---------------
1 file changed, 78 insertions(+), 83 deletions(-)
V2 Changes
+ Removed memory leaks
+ Restricted setting machine and emulator defaults to KVM/QEMU cases
diff --git a/src/Virt_VirtualSystemManagementService.c b/src/Virt_VirtualSystemManagementService.c
index 301f046..53b9691 100644
--- a/src/Virt_VirtualSystemManagementService.c
+++ b/src/Virt_VirtualSystemManagementService.c
@@ -35,6 +35,7 @@
#include "cs_util.h"
#include "misc_util.h"
#include "device_parsing.h"
+#include "capability_parsing.h"
#include "xmlgen.h"
#include <libcmpiutil/libcmpiutil.h>
@@ -388,59 +389,6 @@ static bool fv_set_emulator(struct domain *domain,
return true;
}
-static bool system_has_kvm(const char *pfx)
-{
- CMPIStatus s;
- virConnectPtr conn = NULL;
- char *caps = NULL;
- bool disable_kvm = get_disable_kvm();
- xmlDocPtr doc = NULL;
- xmlNodePtr node = NULL;
- int len;
- bool kvm = false;
-
- /* sometimes disable KVM to avoid problem in nested KVM */
- if (disable_kvm) {
- CU_DEBUG("Enter disable kvm mode!");
- goto out;
- }
-
- conn = connect_by_classname(_BROKER, pfx, &s);
- if ((conn == NULL) || (s.rc != CMPI_RC_OK)) {
- goto out;
- }
-
- caps = virConnectGetCapabilities(conn);
- if (caps != NULL) {
- len = strlen(caps) + 1;
-
- doc = xmlParseMemory(caps, len);
- if (doc == NULL) {
- CU_DEBUG("xmlParseMemory() call failed!");
- goto out;
- }
-
- node = xmlDocGetRootElement(doc);
- if (node == NULL) {
- CU_DEBUG("xmlDocGetRootElement() call failed!");
- goto out;
- }
-
- if (has_kvm_domain_type(node)) {
- CU_DEBUG("The system support kvm!");
- kvm = true;
- }
- }
-
-out:
- free(caps);
- free(doc);
-
- virConnectClose(conn);
-
- return kvm;
-}
-
static int bootord_vssd_to_domain(CMPIInstance *inst,
struct domain *domain)
{
@@ -511,53 +459,91 @@ static int bootord_vssd_to_domain(CMPIInstance *inst,
static int fv_vssd_to_domain(CMPIInstance *inst,
struct domain *domain,
- const char *pfx)
+ const char *pfx,
+ virConnectPtr conn)
{
- int ret;
+ int ret = 1;
+ int retr;
const char *val;
+ const char *domtype;
+ const char *ostype = "hvm";
+ struct capabilities *capsinfo = NULL;
+
+ get_capabilities(conn, &capsinfo);
if (STREQC(pfx, "KVM")) {
- if (system_has_kvm(pfx))
+ if (use_kvm(capsinfo)) {
domain->type = DOMAIN_KVM;
- else
+ domtype = "kvm";
+ } else {
domain->type = DOMAIN_QEMU;
+ domtype = "qemu";
+ }
} else if (STREQC(pfx, "Xen")) {
domain->type = DOMAIN_XENFV;
+ domtype = NULL;
} else {
CU_DEBUG("Unknown fullvirt domain type: %s", pfx);
- return 0;
+ ret = 0;
+ goto out;
}
- ret = bootord_vssd_to_domain(inst, domain);
- if (ret != 1)
- return 0;
-
- ret = cu_get_str_prop(inst, "Emulator", &val);
- if (ret != CMPI_RC_OK)
- val = NULL;
- else if (disk_type_from_file(val) == DISK_UNKNOWN) {
- CU_DEBUG("Emulator path does not exist: %s", val);
- return 0;
+ retr = bootord_vssd_to_domain(inst, domain);
+ if (retr != 1) {
+ ret = 0;
+ goto out;
}
- if (!fv_set_emulator(domain, val))
- return 0;
-
free(domain->os_info.fv.arch);
- ret = cu_get_str_prop(inst, "Arch", &val);
- if (ret == CMPI_RC_OK)
+ retr = cu_get_str_prop(inst, "Arch", &val);
+ if (retr != CMPI_RC_OK) {
+ if (capsinfo != NULL) { /* set default */
+ val = get_default_arch(capsinfo, ostype);
+ CU_DEBUG("Set Arch to default: %s", val);
+ } else
+ val = NULL;
+ }
+ if (val != NULL)
domain->os_info.fv.arch = strdup(val);
- else
- domain->os_info.fv.arch = NULL;
free(domain->os_info.fv.machine);
- ret = cu_get_str_prop(inst, "Machine", &val);
- if (ret == CMPI_RC_OK)
+ retr = cu_get_str_prop(inst, "Machine", &val);
+ if (retr != CMPI_RC_OK) {
+ if (capsinfo != NULL && domtype != NULL) { /* set default */
+ val = get_default_machine(capsinfo, ostype,
+ domain->os_info.fv.arch,
+ domtype);
+ CU_DEBUG("Set Machine to default: %s", val);
+ } else
+ val = NULL;
+ }
+ if (val != NULL)
domain->os_info.fv.machine = strdup(val);
- else
- domain->os_info.fv.machine = NULL;
- return 1;
+ retr = cu_get_str_prop(inst, "Emulator", &val);
+ if (retr != CMPI_RC_OK) {
+ if (capsinfo != NULL && domtype != NULL) { /* set default */
+ val = get_default_emulator(capsinfo, ostype,
+ domain->os_info.fv.arch,
+ domtype);
+ CU_DEBUG("Set Emulator to default: %s", val);
+ } else
+ val = NULL;
+ }
+ if (val != NULL && disk_type_from_file(val) == DISK_UNKNOWN) {
+ CU_DEBUG("Emulator path does not exist: %s", val);
+ ret = 0;
+ goto out;
+ }
+
+ if (!fv_set_emulator(domain, val)) {
+ ret = 0;
+ goto out;
+ }
+
+ out:
+ cleanup_capabilities(&capsinfo);
+ return ret;
}
static int lxc_vssd_to_domain(CMPIInstance *inst,
@@ -663,6 +649,8 @@ static int vssd_to_domain(CMPIInstance *inst,
bool bool_val;
bool fullvirt;
CMPIObjectPath *opathp = NULL;
+ virConnectPtr conn = NULL;
+ CMPIStatus s = { CMPI_RC_OK, NULL };
opathp = CMGetObjectPath(inst, NULL);
@@ -748,9 +736,16 @@ static int vssd_to_domain(CMPIInstance *inst,
}
}
- if (fullvirt || STREQC(pfx, "KVM"))
- ret = fv_vssd_to_domain(inst, domain, pfx);
- else if (STREQC(pfx, "Xen"))
+ if (fullvirt || STREQC(pfx, "KVM")) {
+ conn = connect_by_classname(_BROKER, cn, &s);
+ if (conn == NULL || (s.rc != CMPI_RC_OK)) {
+ CU_DEBUG("libvirt connection failed");
+ ret = 0;
+ goto out;
+ }
+ ret = fv_vssd_to_domain(inst, domain, pfx, conn);
+ virConnectClose(conn);
+ } else if (STREQC(pfx, "Xen"))
ret = xenpv_vssd_to_domain(inst, domain);
else if (STREQC(pfx, "LXC"))
ret = lxc_vssd_to_domain(inst, domain);
--
1.7.9.5
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