[libvirt] [PATCH v5 34/36] qemu_driver: Support feature expansion via QEMU when baselining cpu
Support using QEMU to do feature expansion when also using QEMU to
compute hypervisor baseline.
A QEMU process is already created to send the QMP messages to baseline
using QEMU.
The same QEMU process is used for the CPU feature expansion.
QEMU only returns migratable features when expanding CPU model in
architectures where QEMU is used for baseline so no attempt is made to
ask for non-migratable features in expansions when using QEMU for
baseline.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_driver.c | 21 +
1 file changed, 21 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 8c6838f584..4149e4794a 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13843,6 +13843,27 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
if (flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES) {
if (useLibvirt && virCPUExpandFeatures(arch, cpu) < 0) {
goto cleanup;
+} else if (useQemu &&
+ virQEMUCapsGet(qemuCaps,
QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION)) {
+
+if (!(modelInfo = virQEMUCapsCPUModelInfoFromCPUDef(cpu)))
+goto cleanup;
+
+virCPUDefFree(cpu);
+cpu = NULL;
+
+/* QEMU can only include migratable features
+ for all archs that use QEMU for baseline calculation */
+migratable = true;
+
+if (qemuMonitorGetCPUModelExpansion(proc->mon,
+
QEMU_MONITOR_CPU_MODEL_EXPANSION_FULL,
+migratable, modelInfo,
) < 0)
+goto cleanup;
+
+if (!(cpu = virQEMUCapsCPUModelInfoToCPUDef(migratable,
expansion)))
+goto cleanup;
+
} else {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
_("expand features while "
--
2.17.1
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[libvirt] [PATCH v5 33/36] qemu_driver: Support baseline calculation using QEMU
Add capability to calculate hypervisor baseline using QMP message
exchanges with QEMU in addition to existing capability to calculate
baseline using libvirt utility functions.
A new utility function encapsulates the core logic for interacting with QEMU
using QMP baseline messages. The QMP messages only allow two cpu models
to be evaluated at a time so a sequence of QMP baseline messages must be
used to include all the models in the baseline when more than 2 cpu
models are input.
A QEMU process must be started prior to sending the series of QEMU
messages to compute baseline.
The QEMU process is started and maintained in the main hypervisor
baseline function and only a pointer to the QEMU process monitor is
passed to the baseline utility function.
The QEMU process is maintained in the main hypervisor baseline function
because the process will also be used for feature expansion (via QEMU)
in a later patch.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_driver.c | 97 ++
1 file changed, 97 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 4e8a3902d3..8c6838f584 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13642,6 +13642,78 @@ qemuConnectBaselineCPU(virConnectPtr conn
ATTRIBUTE_UNUSED,
}
+/* in:
+ * cpus[0]->model = "z14";
+ * cpus[0]->features[0].name = "xxx";
+ * cpus[0]->features[1].name = "yyy";
+ * ***
+ * cpus[n]->model = "z13";
+ * cpus[n]->features[0].name = "xxx";
+ * cpus[n]->features[1].name = "yyy";
+ *
+ * out:
+ * *baseline->model = "z13-base";
+ * *baseline->features[0].name = "yyy";
+ */
+static int
+qemuConnectBaselineHypervisorCPUViaQEMU(qemuMonitorPtr mon,
+virCPUDefPtr *cpus,
+virCPUDefPtr *baseline)
+{
+qemuMonitorCPUModelInfoPtr model_baseline = NULL;
+qemuMonitorCPUModelInfoPtr new_model_baseline = NULL;
+qemuMonitorCPUModelInfoPtr next_model = NULL;
+bool migratable = true;
+int ret = -1;
+size_t i;
+
+*baseline = NULL;
+
+if (!cpus || !cpus[0]) {
+virReportError(VIR_ERR_INVALID_ARG, "%s", _("no cpus"));
+goto cleanup;
+}
+
+for (i = 0; cpus[i]; i++) { /* cpus terminated by NULL element */
+virCPUDefPtr cpu = cpus[i];
+
+VIR_DEBUG("cpu[%lu]->model = %s", i, NULLSTR(cpu->model));
+
+if (!(next_model = virQEMUCapsCPUModelInfoFromCPUDef(cpu)))
+goto cleanup;
+
+if (i == 0) {
+model_baseline = next_model;
+continue;
+}
+
+if (qemuMonitorGetCPUModelBaseline(mon, model_baseline,
+ next_model, _model_baseline) <
0)
+goto cleanup;
+
+qemuMonitorCPUModelInfoFree(model_baseline);
+qemuMonitorCPUModelInfoFree(next_model);
+
+next_model = NULL;
+
+model_baseline = new_model_baseline;
+}
+
+if (!(*baseline = virQEMUCapsCPUModelInfoToCPUDef(migratable,
model_baseline)))
+goto cleanup;
+
+VIR_DEBUG("baseline->model = %s", (*baseline)->model);
+
+ret = 0;
+
+ cleanup:
+qemuMonitorCPUModelInfoFree(model_baseline);
+qemuMonitorCPUModelInfoFree(next_model);
+
+return ret;
+}
+
+
static int
qemuConnectBaselineHypervisorCPUViaLibvirt(
virQEMUCapsPtr qemuCaps,
@@ -13710,6 +13782,11 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
virCPUDefPtr cpu = NULL;
char *cpustr = NULL;
bool useLibvirt = false;
+bool useQemu = false;
+bool forceTCG = false;
+qemuMonitorCPUModelInfoPtr modelInfo = NULL;
+qemuMonitorCPUModelInfoPtr expansion = NULL;
+qemuProcessQmpPtr proc = NULL;
virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES |
VIR_CONNECT_BASELINE_CPU_MIGRATABLE, NULL);
@@ -13730,6 +13807,7 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
goto cleanup;
useLibvirt = ARCH_IS_X86(arch);
+useQemu = ARCH_IS_S390(arch);
if (useLibvirt) {
migratable = !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE);
@@ -13738,6 +13816,21 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
virttype, arch,
cpus, ncpus, ) < 0)
goto cleanup;
+
+} else if (useQemu) {
+const char *binary = virQEMUCapsGetBinary(qemuCaps);
+virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+
+if (!(proc = qemuProcessQmpNew(binary, cfg->libDir,
+ cfg->user, cfg->group, forceTCG)))
+goto cleanup;
+
+if (qemuProcessQmpStart(proc) < 0)
+goto cleanup;
+
+if ((qemuConnectBaselineHypervisorCPUViaQEMU(proc->mon, cpus, ) <
0) || !cpu)
+goto cleanup;
+
} else {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
[libvirt] [PATCH v5 32/36] qemu_driver: Identify using libvirt as a distinct way to compute baseline
Hypervisor baseline cpu can be computed locally using libvirt utility
functions or remotely using QEMU QMP commands.
Likewise, cpu feature expansion can be computed locally using libvirt
utility functions or remotely using QEMU QMP commands.
This patch identifies using libvirt as a distinct case in the hypervisor
baseline logic and triggers that case when the X86 architecture is being
baselined.
There is one functionality change introduced by this patch.
Local libvirt functions are only used for feature expansion when the
local utility functions are used for CPU baseline and an error is
generated when no method is available to expand cpu featues.
The useQEMU option will be introduced in a future patch for using QEMU
to compute baseline rather than using libvirt.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_driver.c | 19 +++
1 file changed, 15 insertions(+), 4 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 86fc5aa249..4e8a3902d3 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13709,6 +13709,7 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
bool migratable;
virCPUDefPtr cpu = NULL;
char *cpustr = NULL;
+bool useLibvirt = false;
virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES |
VIR_CONNECT_BASELINE_CPU_MIGRATABLE, NULL);
@@ -13728,7 +13729,9 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
if (!qemuCaps)
goto cleanup;
-if (ARCH_IS_X86(arch)) {
+useLibvirt = ARCH_IS_X86(arch);
+
+if (useLibvirt) {
migratable = !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE);
if (qemuConnectBaselineHypervisorCPUViaLibvirt(qemuCaps, migratable,
@@ -13744,9 +13747,17 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
cpu->fallback = VIR_CPU_FALLBACK_FORBID;
-if ((flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES) &&
-virCPUExpandFeatures(arch, cpu) < 0)
-goto cleanup;
+if (flags & VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES) {
+if (useLibvirt && virCPUExpandFeatures(arch, cpu) < 0) {
+goto cleanup;
+} else {
+virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
+ _("expand features while "
+ "computing baseline hypervisor CPU is not
supported "
+ "for arch %s"), virArchToString(arch));
+goto cleanup;
+}
+}
cpustr = virCPUDefFormat(cpu, NULL);
--
2.17.1
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[libvirt] [PATCH v5 35/36] qemu_driver: Remove unsupported props in expanded hypervisor baseline output
Hypervisor baseline has an expansion mode where the cpu property /
feature list is fully expanded to list all supported (true) features.
The output (expanded) cpu model should not list properties that are
false (unsupported.)
QEMU expansion output enumerates both true (supported) and false
(unsupported) properties. This patch removes the false (unsupported)
entries from the output cpu property list.
This change makes the expanded output consistent when both the internal
libvirt utility functions and QEMU QMP commands are used to expand the
property list.
qemu_monitor: Introduce removal of true/false CPUModelInfo props
A utility function is created to squash CPU properties list in
qemuMonitorCPUmodelInfo structure by removing boolean properties
of matching value.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_driver.c | 4
src/qemu/qemu_monitor.c | 30 ++
src/qemu/qemu_monitor.h | 4
3 files changed, 38 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 4149e4794a..4f338f1b37 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13861,6 +13861,10 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
migratable, modelInfo,
) < 0)
goto cleanup;
+/* Expansion enumerates all features
+ * Baselines output enumerates only in-model (true) features */
+qemuMonitorCPUModelInfoRemovePropByBoolValue(expansion, false);
+
if (!(cpu = virQEMUCapsCPUModelInfoToCPUDef(migratable,
expansion)))
goto cleanup;
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index c5266b6767..0c7d7b4b55 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3785,6 +3785,36 @@ qemuMonitorCPUModelInfoCopy(const
qemuMonitorCPUModelInfo *orig)
}
+/* Squash CPU Model Info property list
+ * removing props of type boolean matching value */
+void
+qemuMonitorCPUModelInfoRemovePropByBoolValue(qemuMonitorCPUModelInfoPtr model,
+ bool value)
+{
+qemuMonitorCPUPropertyPtr src;
+qemuMonitorCPUPropertyPtr dst;
+size_t i;
+size_t dst_nprops = 0;
+
+for (i = 0; i < model->nprops; i++) {
+src = &(model->props[i]);
+dst = &(model->props[dst_nprops]);
+
+if (src->type == QEMU_MONITOR_CPU_PROPERTY_BOOLEAN &&
+src->value.boolean == value)
+continue;
+
+*dst = *src;
+
+dst_nprops++;
+}
+
+model->nprops = dst_nprops;
+
+ignore_value(VIR_REALLOC_N_QUIET(model->props, dst_nprops));
+}
+
+
int
qemuMonitorCPUModelInfoBoolPropAdd(qemuMonitorCPUModelInfoPtr model,
const char *prop_name,
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index c87a2d5e47..7aaecd97dd 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1053,6 +1053,10 @@ int
qemuMonitorCPUModelInfoBoolPropAdd(qemuMonitorCPUModelInfoPtr model,
bool prop_value)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+void qemuMonitorCPUModelInfoRemovePropByBoolValue(qemuMonitorCPUModelInfoPtr
model,
+ bool value)
+ATTRIBUTE_NONNULL(1);
+
int qemuMonitorGetCommands(qemuMonitorPtr mon,
char ***commands);
int qemuMonitorGetEvents(qemuMonitorPtr mon,
--
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[libvirt] [PATCH v5 36/36] qemu_monitor: Default props to migratable when expanding cpu model
QEMU only returns migratable props when expanding model unless
explicitly told to also include non-migratable props.
Props will be marked migratable when we are certain QEMU returned only
migratable props resulting in consistent information and expansion output
for s390 that is consistent with x86.
After this change,
immediately default prop->migratable = _YES for all props
when we know QEMU only included migratable props in CPU Model.
Set model->migratability = true when we have set prop->migratable.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_monitor.c | 53 ++-
src/qemu/qemu_monitor.h | 7 +-
.../caps_2.10.0.s390x.xml | 60 -
.../caps_2.11.0.s390x.xml | 58 -
.../caps_2.12.0.s390x.xml | 56
.../qemucapabilitiesdata/caps_2.8.0.s390x.xml | 32 +-
.../qemucapabilitiesdata/caps_2.9.0.s390x.xml | 34 +-
.../qemucapabilitiesdata/caps_3.0.0.s390x.xml | 64 +--
8 files changed, 210 insertions(+), 154 deletions(-)
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 0c7d7b4b55..23a9c2ff2b 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3682,12 +3682,31 @@ qemuMonitorGetCPUModelExpansion(qemuMonitorPtr mon,
qemuMonitorCPUModelInfoPtr *expansion
)
{
+int ret = -1;
+qemuMonitorCPUModelInfoPtr tmp;
+
VIR_DEBUG("type=%d model_name=%s migratable=%d",
type, input->name, migratable);
+*expansion = NULL;
+
QEMU_CHECK_MONITOR(mon);
-return qemuMonitorJSONGetCPUModelExpansion(mon, type, migratable, input,
expansion);
+if ((ret = qemuMonitorJSONGetCPUModelExpansion(mon, type, migratable,
input, )) < 0)
+goto cleanup;
+
+if (migratable) {
+/* Only migratable props were included in expanded CPU model */
+*expansion = qemuMonitorCPUModelInfoCopyDefaultMigratable(tmp);
+} else {
+VIR_STEAL_PTR(*expansion, tmp);
+}
+
+ret = 0;
+
+ cleanup:
+qemuMonitorCPUModelInfoFree(tmp);
+return ret;
}
@@ -3785,6 +3804,38 @@ qemuMonitorCPUModelInfoCopy(const
qemuMonitorCPUModelInfo *orig)
}
+qemuMonitorCPUModelInfoPtr
+qemuMonitorCPUModelInfoCopyDefaultMigratable(const qemuMonitorCPUModelInfo
*orig)
+{
+qemuMonitorCPUModelInfoPtr ret = NULL;
+qemuMonitorCPUModelInfoPtr tmp = NULL;
+qemuMonitorCPUPropertyPtr prop = NULL;
+size_t i;
+
+if (!(tmp = qemuMonitorCPUModelInfoCopy(orig)))
+goto cleanup;
+
+for (i = 0; i < tmp->nprops; i++) {
+prop = tmp->props + i;
+
+/* Default prop thats in cpu model (true) to migratable (_YES)
+ * unless prop already explicitly set not migratable (_NO)
+ */
+if (prop->type == QEMU_MONITOR_CPU_PROPERTY_BOOLEAN &&
+prop->value.boolean &&
+prop->migratable != VIR_TRISTATE_BOOL_NO)
+prop->migratable = VIR_TRISTATE_BOOL_YES;
+}
+
+tmp->migratability = true; /* prop->migratable = YES/NO for all CPU props
*/
+
+VIR_STEAL_PTR(ret, tmp);
+
+ cleanup:
+return ret;
+}
+
+
/* Squash CPU Model Info property list
* removing props of type boolean matching value */
void
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 7aaecd97dd..77aa7cfdc6 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1025,7 +1025,7 @@ struct _qemuMonitorCPUModelInfo {
char *name;
size_t nprops;
qemuMonitorCPUPropertyPtr props;
-bool migratability;
+bool migratability; /* true if prop->migratable is YES/NO for all CPU
props */
};
typedef enum {
@@ -1048,6 +1048,11 @@ qemuMonitorCPUModelInfoPtr
qemuMonitorCPUModelInfoNew(const char *name);
qemuMonitorCPUModelInfoPtr
qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig);
+qemuMonitorCPUModelInfoPtr
+qemuMonitorCPUModelInfoCopyDefaultMigratable(const qemuMonitorCPUModelInfo
*orig)
+ATTRIBUTE_NONNULL(1);
+
+
int qemuMonitorCPUModelInfoBoolPropAdd(qemuMonitorCPUModelInfoPtr model,
const char *prop_name,
bool prop_value)
diff --git a/tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml
b/tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml
index 180a688ba2..07f4da579b 100644
--- a/tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml
+++ b/tests/qemucapabilitiesdata/caps_2.10.0.s390x.xml
@@ -120,36 +120,36 @@
306247
s390x
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
diff --git
[libvirt] [PATCH v5 30/36] qemu_driver: Consolidate code to baseline using libvirt
Simple cut/paste operations within function
qemuConnectBaselineHypervisorCPU to group together code specific to
computing baseline using only libvirt utility functions.
This is done in anticipation of creating new utility functions for
1) baseline using libvirt utilities (this code)
2) baseline using qemu qmp command (future)
Future patches are easier to follow if the code for using libvirt is
consolidated.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_driver.c | 27 ++-
1 file changed, 14 insertions(+), 13 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 7d9e17e72c..007f64d6ad 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13657,7 +13657,6 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
virQEMUCapsPtr qemuCaps = NULL;
virArch arch;
virDomainVirtType virttype;
-virDomainCapsCPUModelsPtr cpuModels;
bool migratable;
virCPUDefPtr cpu = NULL;
char *cpustr = NULL;
@@ -13669,8 +13668,6 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
if (virConnectBaselineHypervisorCPUEnsureACL(conn) < 0)
goto cleanup;
-migratable = !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE);
-
if (!(cpus = virCPUDefListParse(xmlCPUs, ncpus, VIR_CPU_TYPE_AUTO)))
goto cleanup;
@@ -13683,17 +13680,21 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
if (!qemuCaps)
goto cleanup;
-if (!(cpuModels = virQEMUCapsGetCPUDefinitions(qemuCaps, virttype)) ||
-cpuModels->nmodels == 0) {
-virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
- _("QEMU '%s' does not support any CPU models for "
- "virttype '%s'"),
- virQEMUCapsGetBinary(qemuCaps),
- virDomainVirtTypeToString(virttype));
-goto cleanup;
-}
-
if (ARCH_IS_X86(arch)) {
+migratable = !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE);
+
+virDomainCapsCPUModelsPtr cpuModels;
+
+if (!(cpuModels = virQEMUCapsGetCPUDefinitions(qemuCaps, virttype)) ||
+cpuModels->nmodels == 0) {
+virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
+ _("QEMU '%s' does not support any CPU models for "
+ "virttype '%s'"),
+ virQEMUCapsGetBinary(qemuCaps),
+ virDomainVirtTypeToString(virttype));
+goto cleanup;
+}
+
int rc = virQEMUCapsGetCPUFeatures(qemuCaps, virttype,
migratable, );
if (rc < 0)
--
2.17.1
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[libvirt] [PATCH v5 31/36] qemu_driver: Decouple code for baseline using libvirt
Create utility function encapsulating code to calculate
hypervisor baseline cpu using the local libvirt utility functions.
Similar function encapsulating code to calculating hypervisor baseline
using QEMU QMP messages will be introduced in later commit.
Patch is a cut and paste of existing code into a utility function
wrapper.
s/cpu/*baseline/ (change output variable name ) and
initialize variable "rc" are the only code changes.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_driver.c | 78 --
1 file changed, 52 insertions(+), 26 deletions(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 007f64d6ad..86fc5aa249 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -13642,6 +13642,55 @@ qemuConnectBaselineCPU(virConnectPtr conn
ATTRIBUTE_UNUSED,
}
+static int
+qemuConnectBaselineHypervisorCPUViaLibvirt(
+virQEMUCapsPtr qemuCaps,
+bool migratable,
+virDomainVirtType virttype,
+virArch arch,
+virCPUDefPtr *cpus,
+unsigned int ncpus,
+virCPUDefPtr *baseline)
+{
+char **features = NULL;
+int ret = -1;
+int rc = -1;
+virDomainCapsCPUModelsPtr cpuModels;
+
+*baseline = NULL;
+
+if (!(cpuModels = virQEMUCapsGetCPUDefinitions(qemuCaps, virttype)) ||
+cpuModels->nmodels == 0) {
+virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
+ _("QEMU '%s' does not support any CPU models for "
+ "virttype '%s'"),
+ virQEMUCapsGetBinary(qemuCaps),
+ virDomainVirtTypeToString(virttype));
+goto cleanup;
+}
+
+rc = virQEMUCapsGetCPUFeatures(qemuCaps, virttype,
+ migratable, );
+if (rc < 0)
+goto cleanup;
+if (features && rc == 0) {
+/* We got only migratable features from QEMU if we asked for them,
+ * no further filtering in virCPUBaseline is desired. */
+migratable = false;
+}
+
+if (!(*baseline = virCPUBaseline(arch, cpus, ncpus, cpuModels,
+ (const char **)features, migratable)))
+goto cleanup;
+
+ret = 0;
+
+ cleanup:
+virStringListFree(features);
+return ret;
+}
+
+
static char *
qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
const char *emulator,
@@ -13660,7 +13709,6 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
bool migratable;
virCPUDefPtr cpu = NULL;
char *cpustr = NULL;
-char **features = NULL;
virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES |
VIR_CONNECT_BASELINE_CPU_MIGRATABLE, NULL);
@@ -13683,30 +13731,9 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
if (ARCH_IS_X86(arch)) {
migratable = !!(flags & VIR_CONNECT_BASELINE_CPU_MIGRATABLE);
-virDomainCapsCPUModelsPtr cpuModels;
-
-if (!(cpuModels = virQEMUCapsGetCPUDefinitions(qemuCaps, virttype)) ||
-cpuModels->nmodels == 0) {
-virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
- _("QEMU '%s' does not support any CPU models for "
- "virttype '%s'"),
- virQEMUCapsGetBinary(qemuCaps),
- virDomainVirtTypeToString(virttype));
-goto cleanup;
-}
-
-int rc = virQEMUCapsGetCPUFeatures(qemuCaps, virttype,
- migratable, );
-if (rc < 0)
-goto cleanup;
-if (features && rc == 0) {
-/* We got only migratable features from QEMU if we asked for them,
- * no further filtering in virCPUBaseline is desired. */
-migratable = false;
-}
-
-if (!(cpu = virCPUBaseline(arch, cpus, ncpus, cpuModels,
- (const char **)features, migratable)))
+if (qemuConnectBaselineHypervisorCPUViaLibvirt(qemuCaps, migratable,
+ virttype, arch,
+ cpus, ncpus, ) < 0)
goto cleanup;
} else {
virReportError(VIR_ERR_OPERATION_UNSUPPORTED,
@@ -13727,7 +13754,6 @@ qemuConnectBaselineHypervisorCPU(virConnectPtr conn,
virCPUDefListFree(cpus);
virCPUDefFree(cpu);
virObjectUnref(qemuCaps);
-virStringListFree(features);
return cpustr;
}
--
2.17.1
--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list
[libvirt] [PATCH v5 27/36] qemu_capabilities: Introduce CPUModelInfo to virCPUDef function
Move existing code to convert between cpu model info structures
(qemuMonitorCPUModelInfoPtr into virCPUDef)
into a reusable function.
The new function is used in this and future patches.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 84 ++--
src/qemu/qemu_capabilities.h | 3 ++
2 files changed, 64 insertions(+), 23 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 8c5ec4cc9a..74f670459f 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -2819,7 +2819,8 @@ virQEMUCapsInitCPUModelS390(virQEMUCapsPtr qemuCaps,
virCPUDefPtr cpu,
bool migratable)
{
-size_t i;
+virCPUDefPtr tmp = NULL;
+int ret = -1;
if (!modelInfo) {
if (type == VIR_DOMAIN_VIRT_KVM) {
@@ -2832,32 +2833,18 @@ virQEMUCapsInitCPUModelS390(virQEMUCapsPtr qemuCaps,
return 2;
}
-if (VIR_STRDUP(cpu->model, modelInfo->name) < 0 ||
-VIR_ALLOC_N(cpu->features, modelInfo->nprops) < 0)
-return -1;
+if (!(tmp = virQEMUCapsCPUModelInfoToCPUDef(migratable, modelInfo)))
+goto cleanup;
-cpu->nfeatures_max = modelInfo->nprops;
-cpu->nfeatures = 0;
+/* Free original then copy over model, vendor, vendor_id and features */
+virCPUDefStealModel(cpu, tmp, true);
-for (i = 0; i < modelInfo->nprops; i++) {
-virCPUFeatureDefPtr feature = cpu->features + cpu->nfeatures;
-qemuMonitorCPUPropertyPtr prop = modelInfo->props + i;
+ret = 0;
-if (prop->type != QEMU_MONITOR_CPU_PROPERTY_BOOLEAN)
-continue;
+ cleanup:
+virCPUDefFree(tmp);
-if (VIR_STRDUP(feature->name, prop->name) < 0)
-return -1;
-
-if (!prop->value.boolean ||
-(migratable && prop->migratable == VIR_TRISTATE_BOOL_NO))
-feature->policy = VIR_CPU_FEATURE_DISABLE;
-else
-feature->policy = VIR_CPU_FEATURE_REQUIRE;
-cpu->nfeatures++;
-}
-
-return 0;
+return ret;
}
@@ -3655,6 +3642,57 @@ virQEMUCapsLoadCache(virArch hostArch,
}
+/* qemuMonitorCPUModelInfo name => virCPUDef model
+ * qemuMonitorCPUModelInfo boolean properties => virCPUDef features
+ *
+ * migratable true: mark non-migratable features as disabled
+ *false: allow all features as required
+ */
+virCPUDefPtr
+virQEMUCapsCPUModelInfoToCPUDef(bool migratable, qemuMonitorCPUModelInfoPtr
model)
+{
+virCPUDefPtr cpu = NULL;
+virCPUDefPtr ret = NULL;
+size_t i;
+
+if (!model || VIR_ALLOC(cpu) < 0)
+goto cleanup;
+
+VIR_DEBUG("model->name= %s", NULLSTR(model->name));
+
+if (VIR_STRDUP(cpu->model, model->name) < 0 ||
+VIR_ALLOC_N(cpu->features, model->nprops) < 0)
+goto cleanup;
+
+cpu->nfeatures_max = model->nprops;
+cpu->nfeatures = 0;
+
+for (i = 0; i < model->nprops; i++) {
+virCPUFeatureDefPtr feature = cpu->features + cpu->nfeatures;
+qemuMonitorCPUPropertyPtr prop = model->props + i;
+
+if (prop->type != QEMU_MONITOR_CPU_PROPERTY_BOOLEAN)
+continue;
+
+if (VIR_STRDUP(feature->name, prop->name) < 0)
+goto cleanup;
+
+if (!prop->value.boolean ||
+(migratable && prop->migratable == VIR_TRISTATE_BOOL_NO))
+feature->policy = VIR_CPU_FEATURE_DISABLE;
+else
+feature->policy = VIR_CPU_FEATURE_REQUIRE;
+
+cpu->nfeatures++;
+}
+
+VIR_STEAL_PTR(ret, cpu);
+
+ cleanup:
+virCPUDefFree(cpu);
+return ret;
+}
+
static void
virQEMUCapsFormatHostCPUModelInfo(virQEMUCapsPtr qemuCaps,
virBufferPtr buf,
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index b1990b6bb8..52e36e76b6 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -579,6 +579,9 @@ int virQEMUCapsGetMachineTypesCaps(virQEMUCapsPtr qemuCaps,
void virQEMUCapsFilterByMachineType(virQEMUCapsPtr qemuCaps,
const char *machineType);
+virCPUDefPtr virQEMUCapsCPUModelInfoToCPUDef(bool migratable,
+ qemuMonitorCPUModelInfoPtr model);
+
virFileCachePtr virQEMUCapsCacheNew(const char *libDir,
const char *cacheDir,
uid_t uid,
--
2.17.1
--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list
[libvirt] [PATCH v5 28/36] qemu_capabilities: Introduce virCPUDef to CPUModelInfo function
Create public function to convert virCPUDef data structure into
qemuMonitorCPUModelInfoPtr data structure.
There was no existing code to reuse to create this function
so this new virQEMUCapsCPUModelInfoFromCPUDef function was based on
reversing the action of the existing virQEMUCapsCPUModelInfoToCPUDef
function.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 46
src/qemu/qemu_capabilities.h | 1 +
2 files changed, 47 insertions(+)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 74f670459f..b36ccda090 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -3642,6 +3642,51 @@ virQEMUCapsLoadCache(virArch hostArch,
}
+/* virCPUDef model=> qemuMonitorCPUModelInfo name
+ * virCPUDef features => qemuMonitorCPUModelInfo boolean properties */
+qemuMonitorCPUModelInfoPtr
+virQEMUCapsCPUModelInfoFromCPUDef(const virCPUDef *cpuDef)
+{
+size_t i;
+qemuMonitorCPUModelInfoPtr cpuModel = NULL;
+qemuMonitorCPUModelInfoPtr ret = NULL;
+
+if (!cpuDef || (VIR_ALLOC(cpuModel) < 0))
+goto cleanup;
+
+VIR_DEBUG("cpuDef->model = %s", NULLSTR(cpuDef->model));
+
+if (VIR_STRDUP(cpuModel->name, cpuDef->model) < 0 ||
+VIR_ALLOC_N(cpuModel->props, cpuDef->nfeatures) < 0)
+goto cleanup;
+
+cpuModel->nprops = 0;
+
+for (i = 0; i < cpuDef->nfeatures; i++) {
+qemuMonitorCPUPropertyPtr prop = &(cpuModel->props[cpuModel->nprops]);
+virCPUFeatureDefPtr feature = &(cpuDef->features[i]);
+
+if (!(feature->name) ||
+VIR_STRDUP(prop->name, feature->name) < 0)
+goto cleanup;
+
+prop->type = QEMU_MONITOR_CPU_PROPERTY_BOOLEAN;
+
+prop->value.boolean = feature->policy == -1 || /* policy undefined */
+ feature->policy == VIR_CPU_FEATURE_FORCE ||
+ feature->policy == VIR_CPU_FEATURE_REQUIRE;
+
+cpuModel->nprops++;
+}
+
+VIR_STEAL_PTR(ret, cpuModel);
+
+ cleanup:
+qemuMonitorCPUModelInfoFree(cpuModel);
+return ret;
+}
+
+
/* qemuMonitorCPUModelInfo name => virCPUDef model
* qemuMonitorCPUModelInfo boolean properties => virCPUDef features
*
@@ -3693,6 +3738,7 @@ virQEMUCapsCPUModelInfoToCPUDef(bool migratable,
qemuMonitorCPUModelInfoPtr mode
return ret;
}
+
static void
virQEMUCapsFormatHostCPUModelInfo(virQEMUCapsPtr qemuCaps,
virBufferPtr buf,
diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h
index 52e36e76b6..9bc6773263 100644
--- a/src/qemu/qemu_capabilities.h
+++ b/src/qemu/qemu_capabilities.h
@@ -579,6 +579,7 @@ int virQEMUCapsGetMachineTypesCaps(virQEMUCapsPtr qemuCaps,
void virQEMUCapsFilterByMachineType(virQEMUCapsPtr qemuCaps,
const char *machineType);
+qemuMonitorCPUModelInfoPtr virQEMUCapsCPUModelInfoFromCPUDef(const virCPUDef
*cpuDef);
virCPUDefPtr virQEMUCapsCPUModelInfoToCPUDef(bool migratable,
qemuMonitorCPUModelInfoPtr model);
--
2.17.1
--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list
[libvirt] [PATCH v5 25/36] qemu_capabilities: Introduce virQEMuCapsMigratablePropsDiff
Create an augmented CPUModelInfo identifying which props are/aren't
migratable based on a diff between migratable and non-migratable
inputs.
This patch pulls existing logic out of virQEMUCapsProbeQMPHostCPU
and wraps the existing logic in a standalone function hopefully
simplifying both functions and making the inputs and outputs clearer.
The patch also sets cpuData->info = NULL to make sure bad data does not
remain in failure cases.
Q) Can the right people quickly determine if they should review this?
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 131 ---
1 file changed, 92 insertions(+), 39 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index cd685298e6..bd75f82e70 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -2378,14 +2378,91 @@ virQEMUCapsProbeQMPCPUDefinitions(virQEMUCapsPtr
qemuCaps,
}
+/* virQEMUCapsMigratablePropsDiff
+ * @migratable: input where all migratable props have value true
+ * and non-migratable and unsupported props have value false
+ *
+ * @nonMigratable: input where all migratable & non-migratable props
+ * have value true and unsupported props have value false
+ *
+ * @augmented: output including all props listed in @migratable but
+ * both migratable & non-migratable props have value true,
+ * unsupported props have value false,
+ * and prop->migratable is set to VIR_TRISTATE_BOOL_{YES/NO}
+ * for each supported prop
+ *
+ * Differences in expanded CPUModelInfo inputs @migratable and @nonMigratable
are
+ * used to create output @augmented where individual props have
prop->migratable
+ * set to indicate if prop is or isn't migratable.
+ */
+static int
+virQEMUCapsMigratablePropsDiff(qemuMonitorCPUModelInfoPtr migratable,
+ qemuMonitorCPUModelInfoPtr nonMigratable,
+ qemuMonitorCPUModelInfoPtr *augmented)
+{
+int ret = -1;
+qemuMonitorCPUModelInfoPtr tmp;
+qemuMonitorCPUPropertyPtr prop;
+qemuMonitorCPUPropertyPtr mProp;
+qemuMonitorCPUPropertyPtr nmProp;
+virHashTablePtr hash = NULL;
+size_t i;
+
+*augmented = NULL;
+
+if (!(tmp = qemuMonitorCPUModelInfoCopy(migratable)))
+goto cleanup;
+
+if (!nonMigratable)
+goto done;
+
+if (!(hash = virHashCreate(0, NULL)))
+goto cleanup;
+
+for (i = 0; i < tmp->nprops; i++) {
+prop = tmp->props + i;
+
+if (virHashAddEntry(hash, prop->name, prop) < 0)
+goto cleanup;
+}
+
+for (i = 0; i < nonMigratable->nprops; i++) {
+nmProp = nonMigratable->props + i;
+
+if (!(mProp = virHashLookup(hash, nmProp->name)) ||
+mProp->type != QEMU_MONITOR_CPU_PROPERTY_BOOLEAN ||
+mProp->type != nmProp->type)
+continue; /* In non-migratable list but not in migratable list */
+
+if (mProp->value.boolean) {
+mProp->migratable = VIR_TRISTATE_BOOL_YES;
+} else if (nmProp->value.boolean) {
+mProp->value.boolean = true;
+mProp->migratable = VIR_TRISTATE_BOOL_NO;
+}
+}
+
+tmp->migratability = true;
+
+ done:
+VIR_STEAL_PTR(*augmented, tmp);
+ret = 0;
+
+ cleanup:
+qemuMonitorCPUModelInfoFree(tmp);
+virHashFree(hash);
+return ret;
+}
+
+
static int
virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon,
bool tcg)
{
-qemuMonitorCPUModelInfoPtr modelInfo = NULL;
+qemuMonitorCPUModelInfoPtr migratable = NULL;
qemuMonitorCPUModelInfoPtr nonMigratable = NULL;
-virHashTablePtr hash = NULL;
+qemuMonitorCPUModelInfoPtr augmented = NULL;
const char *model;
qemuMonitorCPUModelExpansionType type;
virDomainVirtType virtType;
@@ -2404,6 +2481,7 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
}
cpuData = virQEMUCapsGetHostCPUData(qemuCaps, virtType);
+cpuData->info = NULL;
/* Some x86_64 features defined in cpu_map.xml use spelling which differ
* from the one preferred by QEMU. Static expansion would give us only the
@@ -2415,54 +2493,29 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
else
type = QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC;
-if (qemuMonitorGetCPUModelExpansion(mon, type, model, true, ) <
0)
+if (qemuMonitorGetCPUModelExpansion(mon, type, model, true, ) <
0)
goto cleanup;
+if (!migratable) {
+ret = 0; /* Qemu can't expand the model name, exit without error
*/
+goto cleanup;
+}
+
/* Try to check migratability of each feature. */
-if (modelInfo &&
-qemuMonitorGetCPUModelExpansion(mon, type, model, false,
+if (qemuMonitorGetCPUModelExpansion(mon, type, model, false,
) < 0)
goto cleanup;
-if (nonMigratable) {
-qemuMonitorCPUPropertyPtr
[libvirt] [PATCH v5 26/36] qemu_monitor: qemuMonitorGetCPUModelExpansion inputs and outputs CPUModelInfo
A Full CPUModelInfo structure with props is sent to QEMU for expansion.
virQEMUCapsProbeQMPHostCPU migratability logic partitioned into new function
for clarity.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 8 +---
src/qemu/qemu_monitor.c | 31 ++-
src/qemu/qemu_monitor.h | 5 +++--
src/qemu/qemu_monitor_json.c | 16 +++-
src/qemu/qemu_monitor_json.h | 6 +++---
tests/cputest.c | 11 ---
6 files changed, 56 insertions(+), 21 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index bd75f82e70..8c5ec4cc9a 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -2460,6 +2460,7 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
qemuMonitorPtr mon,
bool tcg)
{
+qemuMonitorCPUModelInfoPtr input;
qemuMonitorCPUModelInfoPtr migratable = NULL;
qemuMonitorCPUModelInfoPtr nonMigratable = NULL;
qemuMonitorCPUModelInfoPtr augmented = NULL;
@@ -2493,7 +2494,8 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
else
type = QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC;
-if (qemuMonitorGetCPUModelExpansion(mon, type, model, true, ) <
0)
+if (!(input = qemuMonitorCPUModelInfoNew(model)) ||
+qemuMonitorGetCPUModelExpansion(mon, type, true, input, ) <
0)
goto cleanup;
if (!migratable) {
@@ -2502,8 +2504,7 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
}
/* Try to check migratability of each feature. */
-if (qemuMonitorGetCPUModelExpansion(mon, type, model, false,
-) < 0)
+if (qemuMonitorGetCPUModelExpansion(mon, type, false, input,
) < 0)
goto cleanup;
if (virQEMUCapsMigratablePropsDiff(migratable, nonMigratable, )
< 0)
@@ -2513,6 +2514,7 @@ virQEMUCapsProbeQMPHostCPU(virQEMUCapsPtr qemuCaps,
ret = 0;
cleanup:
+qemuMonitorCPUModelInfoFree(input);
qemuMonitorCPUModelInfoFree(migratable);
qemuMonitorCPUModelInfoFree(nonMigratable);
qemuMonitorCPUModelInfoFree(augmented);
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index ddf4d96799..bed6a2f90a 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3653,20 +3653,41 @@ qemuMonitorCPUDefInfoFree(qemuMonitorCPUDefInfoPtr cpu)
}
+/**
+ * qemuMonitorGetCPUModelExpansion:
+ * @mon:
+ * @type: qemuMonitorCPUModelExpansionType
+ * @migratable: Prompt QEMU to include non-migratable props for X86 models if
false
+ * @input: Input model
+ * @expansion: Expanded output model (or NULL if QEMU rejects model or request)
+ *
+ * Re-represent @input CPU props using a new CPUModelInfo constructed
+ * by naming a STATIC or DYNAMIC model cooresponding to a set of properties and
+ * a FULL or PARTIAL (only deltas from model) property list.
+ *
+ * if @type == QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC
+ * construct @expansion using STATIC model name and a PARTIAL (delta)
property list
+ *
+ * if @type == QEMU_MONITOR_CPU_MODEL_EXPANSION_FULL
+ * construct @expansion using DYNAMIC model name and a FULL property list
+ *
+ * if @type == QEMU_MONITOR_CPU_MODEL_EXPANSION_STATIC_FULL
+ * construct @expansion using STATIC model name and a FULL property list
+ */
int
qemuMonitorGetCPUModelExpansion(qemuMonitorPtr mon,
qemuMonitorCPUModelExpansionType type,
-const char *model_name,
bool migratable,
-qemuMonitorCPUModelInfoPtr *model_info)
+qemuMonitorCPUModelInfoPtr input,
+qemuMonitorCPUModelInfoPtr *expansion
+ )
{
VIR_DEBUG("type=%d model_name=%s migratable=%d",
- type, model_name, migratable);
+ type, input->name, migratable);
QEMU_CHECK_MONITOR(mon);
-return qemuMonitorJSONGetCPUModelExpansion(mon, type, model_name,
- migratable, model_info);
+return qemuMonitorJSONGetCPUModelExpansion(mon, type, migratable, input,
expansion);
}
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index d0c54f60a9..78ad8ae428 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1036,9 +1036,10 @@ typedef enum {
int qemuMonitorGetCPUModelExpansion(qemuMonitorPtr mon,
qemuMonitorCPUModelExpansionType type,
-const char *model_name,
bool migratable,
-qemuMonitorCPUModelInfoPtr *model_info);
+qemuMonitorCPUModelInfoPtr input,
+qemuMonitorCPUModelInfoPtr *expansion)
+ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5);
[libvirt] [PATCH v5 24/36] qemu_monitor: Introduce qemuMonitorCPUModelInfo / JSON conversion
Conversion functions are used convert CPUModelInfo structs into
QMP JSON and the reverse.
QMP JSON is of form:
{"model": {"name": "IvyBridge", "props": {}}}
qemuMonitorCPUModelInfoBoolPropAdd is used to add boolean properties to
CPUModelInfo struct.
qemuMonitorJSONGetCPUModelExpansion makes full use of conversions and
propAdd in prep to support input of full cpu model in future.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_monitor.c | 24 ++
src/qemu/qemu_monitor.h | 5 ++
src/qemu/qemu_monitor_json.c | 154 +--
3 files changed, 138 insertions(+), 45 deletions(-)
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 5effc74736..ddf4d96799 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3764,6 +3764,30 @@ qemuMonitorCPUModelInfoCopy(const
qemuMonitorCPUModelInfo *orig)
}
+int
+qemuMonitorCPUModelInfoBoolPropAdd(qemuMonitorCPUModelInfoPtr model,
+ const char *prop_name,
+ bool prop_value)
+{
+int ret = -1;
+qemuMonitorCPUProperty prop;
+prop.type = QEMU_MONITOR_CPU_PROPERTY_BOOLEAN;
+prop.value.boolean = prop_value;
+
+if (VIR_STRDUP(prop.name, prop_name) < 0)
+goto cleanup;
+
+if (VIR_APPEND_ELEMENT(model->props, model->nprops, prop) < 0)
+goto cleanup;
+
+ret = 0;
+
+ cleanup:
+VIR_FREE(prop.name);
+return ret;
+}
+
+
int
qemuMonitorGetCommands(qemuMonitorPtr mon,
char ***commands)
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index d486af201a..d0c54f60a9 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1047,6 +1047,11 @@ qemuMonitorCPUModelInfoPtr
qemuMonitorCPUModelInfoNew(const char *name);
qemuMonitorCPUModelInfoPtr
qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig);
+int qemuMonitorCPUModelInfoBoolPropAdd(qemuMonitorCPUModelInfoPtr model,
+ const char *prop_name,
+ bool prop_value)
+ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+
int qemuMonitorGetCommands(qemuMonitorPtr mon,
char ***commands);
int qemuMonitorGetEvents(qemuMonitorPtr mon,
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 5a806f6c0e..abfa4155ee 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -5505,6 +5505,101 @@ qemuMonitorJSONParseCPUModelProperty(const char *key,
return 0;
}
+
+/* model_json: {"name": "z13-base", "props": {}}
+ */
+static virJSONValuePtr
+qemuMonitorJSONBuildCPUModelInfoToJSON(qemuMonitorCPUModelInfoPtr model)
+{
+virJSONValuePtr cpu_props = NULL;
+virJSONValuePtr model_json = NULL;
+size_t i;
+
+if (!model)
+goto cleanup;
+
+if (model->nprops > 0 && !(cpu_props = virJSONValueNewObject()))
+goto cleanup;
+
+for (i = 0; i < model->nprops; i++) {
+qemuMonitorCPUPropertyPtr prop = &(model->props[i]);
+
+switch (prop->type) {
+case QEMU_MONITOR_CPU_PROPERTY_BOOLEAN:
+if (virJSONValueObjectAppendBoolean(cpu_props, prop->name,
+prop->value.boolean) < 0)
+goto cleanup;
+break;
+
+case QEMU_MONITOR_CPU_PROPERTY_STRING:
+if (virJSONValueObjectAppendString(cpu_props, prop->name,
+ prop->value.string) < 0)
+goto cleanup;
+break;
+
+case QEMU_MONITOR_CPU_PROPERTY_NUMBER:
+if (virJSONValueObjectAppendNumberLong(cpu_props, prop->name,
+ prop->value.number) < 0)
+goto cleanup;
+break;
+
+case QEMU_MONITOR_CPU_PROPERTY_LAST:
+default:
+virReportEnumRangeError(qemuMonitorCPUPropertyPtr, prop->type);
+goto cleanup;
+}
+}
+
+ignore_value(virJSONValueObjectCreate(_json, "s:name", model->name,
+ "A:props", _props, NULL));
+
+ cleanup:
+virJSONValueFree(cpu_props);
+return model_json;
+}
+
+
+/* model_json: {"name": "IvyBridge", "props": {}}
+ */
+static qemuMonitorCPUModelInfoPtr
+qemuMonitorJSONBuildCPUModelInfoFromJSON(virJSONValuePtr cpu_model)
+{
+virJSONValuePtr cpu_props;
+qemuMonitorCPUModelInfoPtr model = NULL;
+qemuMonitorCPUModelInfoPtr ret = NULL;
+char const *cpu_name;
+
+if (!(cpu_name = virJSONValueObjectGetString(cpu_model, "name"))) {
+virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("Parsed JSON reply missing 'name'"));
+goto cleanup;
+}
+
+if (VIR_ALLOC(model) < 0)
+goto cleanup;
+
+if (VIR_STRDUP(model->name, cpu_name) < 0)
+goto cleanup;
+
+if ((cpu_props = virJSONValueObjectGetObject(cpu_model, "props"))) {
+
[libvirt] [PATCH v5 29/36] qemu_monitor: Support query-cpu-model-baseline QMP command
Introduce monitor functions to use QEMU to compute baseline cpu
from an input of two cpu models.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_monitor.c | 12
src/qemu/qemu_monitor.h | 6
src/qemu/qemu_monitor_json.c | 60
src/qemu/qemu_monitor_json.h | 6
4 files changed, 84 insertions(+)
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index bed6a2f90a..c5266b6767 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -4514,3 +4514,15 @@ qemuMonitorGetPRManagerInfo(qemuMonitorPtr mon,
virHashFree(info);
return ret;
}
+
+
+int
+qemuMonitorGetCPUModelBaseline(qemuMonitorPtr mon,
+ qemuMonitorCPUModelInfoPtr model_a,
+ qemuMonitorCPUModelInfoPtr model_b,
+ qemuMonitorCPUModelInfoPtr *model_baseline)
+{
+QEMU_CHECK_MONITOR(mon);
+
+return qemuMonitorJSONGetCPUModelBaseline(mon, model_a, model_b,
model_baseline);
+}
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 78ad8ae428..c87a2d5e47 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1205,4 +1205,10 @@ struct _qemuMonitorPRManagerInfo {
int qemuMonitorGetPRManagerInfo(qemuMonitorPtr mon,
virHashTablePtr *retinfo);
+int qemuMonitorGetCPUModelBaseline(qemuMonitorPtr mon,
+ qemuMonitorCPUModelInfoPtr model_a,
+ qemuMonitorCPUModelInfoPtr model_b,
+ qemuMonitorCPUModelInfoPtr *model_baseline)
+ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
+
#endif /* QEMU_MONITOR_H */
diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c
index 96e9f0ea3c..bd0e940325 100644
--- a/src/qemu/qemu_monitor_json.c
+++ b/src/qemu/qemu_monitor_json.c
@@ -8514,3 +8514,63 @@ qemuMonitorJSONGetPRManagerInfo(qemuMonitorPtr mon,
return ret;
}
+
+
+int
+qemuMonitorJSONGetCPUModelBaseline(qemuMonitorPtr mon,
+ qemuMonitorCPUModelInfoPtr model_a,
+ qemuMonitorCPUModelInfoPtr model_b,
+ qemuMonitorCPUModelInfoPtr *model_baseline)
+{
+int ret = -1;
+virJSONValuePtr cmd = NULL;
+virJSONValuePtr reply = NULL;
+virJSONValuePtr data = NULL;
+virJSONValuePtr modela = NULL;
+virJSONValuePtr modelb = NULL;
+virJSONValuePtr cpu_model = NULL;
+
+*model_baseline = NULL;
+
+if (!(modela = qemuMonitorJSONBuildCPUModelInfoToJSON(model_a)) ||
+!(modelb = qemuMonitorJSONBuildCPUModelInfoToJSON(model_b)))
+goto cleanup;
+
+if (!(cmd = qemuMonitorJSONMakeCommand("query-cpu-model-baseline",
+ "a:modela", ,
+ "a:modelb", ,
+ NULL)))
+goto cleanup;
+
+if (qemuMonitorJSONCommand(mon, cmd, ) < 0)
+goto cleanup;
+
+if (qemuMonitorJSONCheckReply(cmd, reply, VIR_JSON_TYPE_OBJECT) < 0) {
+virReportError(VIR_ERR_INVALID_ARG,
+ _("QEMU doesn't support baseline or recognize model %s
or %s"),
+ model_a->name,
+ model_b->name);
+goto cleanup;
+}
+
+data = virJSONValueObjectGetObject(reply, "return");
+
+if (!(cpu_model = virJSONValueObjectGetObject(data, "model"))) {
+virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
+ _("query-cpu-model-baseline reply data was missing
'model'"));
+goto cleanup;
+}
+
+if (!(*model_baseline =
qemuMonitorJSONBuildCPUModelInfoFromJSON(cpu_model)))
+goto cleanup;
+
+ret = 0;
+
+ cleanup:
+virJSONValueFree(cmd);
+virJSONValueFree(reply);
+virJSONValueFree(modela);
+virJSONValueFree(modelb);
+
+return ret;
+}
diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h
index 942dd85ee1..7bd161af58 100644
--- a/src/qemu/qemu_monitor_json.h
+++ b/src/qemu/qemu_monitor_json.h
@@ -581,4 +581,10 @@ int qemuMonitorJSONGetPRManagerInfo(qemuMonitorPtr mon,
virHashTablePtr info)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2);
+int qemuMonitorJSONGetCPUModelBaseline(qemuMonitorPtr mon,
+ qemuMonitorCPUModelInfoPtr model_a,
+ qemuMonitorCPUModelInfoPtr model_b,
+ qemuMonitorCPUModelInfoPtr
*model_baseline)
+ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
+
#endif /* QEMU_MONITOR_JSON_H */
--
2.17.1
--
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[libvirt] [PATCH v5 16/36] qemu_process: Cleanup qemuProcessQmp alloc function
qemuProcessQmpNew is one of the 4 public functions used to create and
manage a qemu process for QMP command exchanges outside of domain
operations.
Add descriptive comment block, Debug statement and make source
consistent with the cleanup / VIR_STEAL_PTR format used elsewhere.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 32 ++--
1 file changed, 26 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 31d41688fe..faf86dac5d 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8124,6 +8124,18 @@ qemuProcessQmpFree(qemuProcessQmpPtr proc)
}
+/**
+ * qemuProcessQmpNew:
+ * @binary: Qemu binary
+ * @libDir: Directory for process and connection artifacts
+ * @runUid: UserId for Qemu Process
+ * @runGid: GroupId for Qemu Process
+ * @forceTCG: Force TCG mode if true
+ *
+ * Allocate and initialize domain structure encapsulating
+ * QEMU Process state and monitor connection to QEMU
+ * for completing QMP Queries.
+ */
qemuProcessQmpPtr
qemuProcessQmpNew(const char *binary,
const char *libDir,
@@ -8131,25 +8143,33 @@ qemuProcessQmpNew(const char *binary,
gid_t runGid,
bool forceTCG)
{
+qemuProcessQmpPtr ret = NULL;
qemuProcessQmpPtr proc = NULL;
+VIR_DEBUG("exec=%s, libDir=%s, runUid=%u, runGid=%u, forceTCG=%d",
+ NULLSTR(binary), NULLSTR(libDir), runUid, runGid, forceTCG);
+
if (VIR_ALLOC(proc) < 0)
-goto error;
+goto cleanup;
if (VIR_STRDUP(proc->binary, binary) < 0 ||
VIR_STRDUP(proc->libDir, libDir) < 0)
-goto error;
+goto cleanup;
proc->runUid = runUid;
proc->runGid = runGid;
proc->forceTCG = forceTCG;
-return proc;
+VIR_STEAL_PTR(ret, proc);
- error:
-qemuProcessQmpFree(proc);
-return NULL;
+ cleanup:
+if (proc)
+qemuProcessQmpFree(proc);
+
+VIR_DEBUG("ret=%p", ret);
+
+return ret;
}
--
2.17.1
--
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[libvirt] [PATCH v5 17/36] qemu_process: Cleanup qemuProcessQmpStop function
qemuProcessQmpStop is one of the 4 public functions used to create and
manage a Qemu process for QMP command exchanges.
Add comment header and debug message.
Other minor code formatting cleanup.
No change in functionality is intended.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index faf86dac5d..e9b50745d3 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8390,10 +8390,20 @@ qemuProcessQmpStart(qemuProcessQmpPtr proc)
goto cleanup;
}
-
-void
-qemuProcessQmpStop(qemuProcessQmpPtr proc)
+/**
+ * qemuProcessStop:
+ * @proc: Stores Process and Connection State
+ *
+ * Stop Monitor Connection and QEMU Process
+ */
+void qemuProcessQmpStop(qemuProcessQmpPtr proc)
{
+if (!proc)
+return;
+
+VIR_DEBUG("Shutting down proc=%p emulator=%s mon=%p pid=%lld",
+ proc, proc->binary, proc->mon, (long long)proc->pid);
+
if (proc->mon) {
virObjectUnlock(proc->mon);
qemuMonitorClose(proc->mon);
--
2.17.1
--
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[libvirt] [PATCH v5 19/36] qemu_monitor: Make monitor callbacks optional
Qemu process code for capababilities doesn't use monitor callbacks and
defines empty callback functions.
Allow NULL to be passed to qemuMonitorOpen for callbacks and remove the
empty functions from the QMP process code.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_monitor.c | 4 ++--
src/qemu/qemu_process.c | 14 +-
2 files changed, 3 insertions(+), 15 deletions(-)
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index a65d638ab8..84065c59dc 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -813,12 +813,12 @@ qemuMonitorOpenInternal(virDomainObjPtr vm,
{
qemuMonitorPtr mon;
-if (!cb->eofNotify) {
+if (cb && !cb->eofNotify) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("EOF notify callback must be supplied"));
return NULL;
}
-if (!cb->errorNotify) {
+if (cb && !cb->errorNotify) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Error notify callback must be supplied"));
return NULL;
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 1b6adf1b64..24945b1d17 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8095,18 +8095,6 @@ qemuProcessReconnectAll(virQEMUDriverPtr driver)
}
-static void virQEMUCapsMonitorNotify(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
- virDomainObjPtr vm ATTRIBUTE_UNUSED,
- void *opaque ATTRIBUTE_UNUSED)
-{
-}
-
-static qemuMonitorCallbacks callbacks = {
-.eofNotify = virQEMUCapsMonitorNotify,
-.errorNotify = virQEMUCapsMonitorNotify,
-};
-
-
/**
* qemuProcessQmpFree:
* @proc: Stores Process and Connection State
@@ -8302,7 +8290,7 @@ qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
bool retry = true;
bool enableJson = true;
virQEMUDriverPtr driver = NULL;
-qemuMonitorCallbacksPtr monCallbacks =
+qemuMonitorCallbacksPtr monCallbacks = NULL;
virDomainXMLOptionPtr xmlopt = NULL;
virDomainChrSourceDef monConfig;
--
2.17.1
--
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[libvirt] [PATCH v5 18/36] qemu_process: Catch process free before process stop
Catch execution paths where qemuProcessQmpFree is called before
qemuProcessQmpStop then report error and force stop before proceeding.
Also added public function header and debug message.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 17 -
1 file changed, 16 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index e9b50745d3..1b6adf1b64 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8107,13 +8107,28 @@ static qemuMonitorCallbacks callbacks = {
};
+/**
+ * qemuProcessQmpFree:
+ * @proc: Stores Process and Connection State
+ *
+ * Free process data structure.
+ */
void
qemuProcessQmpFree(qemuProcessQmpPtr proc)
{
+VIR_DEBUG("proc=%p, proc->mon=%p", proc, (proc ? proc->mon : NULL));
+
if (!proc)
return;
-qemuProcessQmpStop(proc);
+/* This should never be non-NULL if we get here, but just in case... */
+if (proc->mon || proc->pid) {
+VIR_ERROR(_("Unexpected QEMU still active during process free"
+" emulator: %s, pid: %lld, mon: %p"),
+ NULLSTR(proc->binary), (long long)proc->pid, proc->mon);
+qemuProcessQmpStop(proc);
+}
+
VIR_FREE(proc->binary);
VIR_FREE(proc->libDir);
VIR_FREE(proc->monpath);
--
2.17.1
--
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[libvirt] [PATCH v5 20/36] qemu_process: Enter QMP command mode when starting QEMU Process
qemuProcessQmpStart starts a QEMU process and monitor connection that
can be used by multiple functions possibly for multiple QMP commands.
The QMP exchange to exit capabilities negotiation mode and enter command mode
can only be performed once after the monitor connection is established.
Move responsibility for entering QMP command mode into the qemuProcessQmp
code so multiple functions can issue QMP commands in arbitrary orders.
This also simplifies the functions using the connection provided by
qemuProcessQmpStart to issue QMP commands.
Test code now needs to call qemuMonitorSetCapabilities to send the
message to switch to command mode because the test code does not use the
qemuProcessQmp command that internally calls qemuMonitorSetCapabilities.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 12
src/qemu/qemu_process.c | 8
tests/qemucapabilitiestest.c | 7 +++
3 files changed, 15 insertions(+), 12 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index ce60648897..038e3ecf7a 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4035,12 +4035,6 @@ virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,
/* @mon is supposed to be locked by callee */
-if (qemuMonitorSetCapabilities(mon) < 0) {
-VIR_DEBUG("Failed to set monitor capabilities %s",
- virGetLastErrorMessage());
-goto cleanup;
-}
-
if (qemuMonitorGetVersion(mon,
, , ,
) < 0) {
@@ -4213,12 +4207,6 @@ virQEMUCapsInitQMPMonitorTCG(virQEMUCapsPtr qemuCaps
ATTRIBUTE_UNUSED,
{
int ret = -1;
-if (qemuMonitorSetCapabilities(mon) < 0) {
-VIR_DEBUG("Failed to set monitor capabilities %s",
- virGetLastErrorMessage());
-goto cleanup;
-}
-
if (virQEMUCapsProbeQMPCPUDefinitions(qemuCaps, mon, true) < 0)
goto cleanup;
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 24945b1d17..80b938cc0b 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8332,6 +8332,14 @@ qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
virObjectLock(proc->mon);
+/* Exit capabilities negotiation mode and enter QEMU command mode
+ * by issuing qmp_capabilities command to QEMU */
+if (qemuMonitorSetCapabilities(proc->mon) < 0) {
+VIR_DEBUG("Failed to set monitor capabilities %s",
+ virGetLastErrorMessage());
+goto cleanup;
+}
+
ret = 0;
cleanup:
diff --git a/tests/qemucapabilitiestest.c b/tests/qemucapabilitiestest.c
index a043b0fa64..5fffbc266a 100644
--- a/tests/qemucapabilitiestest.c
+++ b/tests/qemucapabilitiestest.c
@@ -58,6 +58,9 @@ testQemuCaps(const void *opaque)
if (!(mon = qemuMonitorTestNewFromFileFull(repliesFile, >driver,
NULL)))
goto cleanup;
+if (qemuMonitorSetCapabilities(qemuMonitorTestGetMonitor(mon)) < 0)
+goto cleanup;
+
if (!(capsActual = virQEMUCapsNew()) ||
virQEMUCapsInitQMPMonitor(capsActual,
qemuMonitorTestGetMonitor(mon)) < 0)
@@ -65,6 +68,10 @@ testQemuCaps(const void *opaque)
if (virQEMUCapsGet(capsActual, QEMU_CAPS_KVM)) {
qemuMonitorResetCommandID(qemuMonitorTestGetMonitor(mon));
+
+if (qemuMonitorSetCapabilities(qemuMonitorTestGetMonitor(mon)) < 0)
+goto cleanup;
+
if (virQEMUCapsInitQMPMonitorTCG(capsActual,
qemuMonitorTestGetMonitor(mon)) < 0)
goto cleanup;
--
2.17.1
--
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[libvirt] [PATCH v5 23/36] qemu_monitor: Introduce qemuMonitorCPUModelInfoNew
Use a helper function to allocate and initializes CPU Model Info structs.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 2 +-
src/qemu/qemu_monitor.c | 32 +++-
src/qemu/qemu_monitor.h | 2 ++
3 files changed, 30 insertions(+), 6 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 038e3ecf7a..cd685298e6 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -3047,7 +3047,7 @@ virQEMUCapsLoadHostCPUModelInfo(virQEMUCapsPtr qemuCaps,
goto cleanup;
}
-if (VIR_ALLOC(hostCPU) < 0)
+if (!(hostCPU = qemuMonitorCPUModelInfoNew(NULL)))
goto cleanup;
if (!(hostCPU->name = virXMLPropString(hostCPUNode, "model"))) {
diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index 84065c59dc..5effc74736 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -3670,6 +3670,31 @@ qemuMonitorGetCPUModelExpansion(qemuMonitorPtr mon,
}
+qemuMonitorCPUModelInfoPtr
+qemuMonitorCPUModelInfoNew(const char *name)
+{
+qemuMonitorCPUModelInfoPtr ret = NULL;
+qemuMonitorCPUModelInfoPtr model;
+
+if (VIR_ALLOC(model) < 0)
+return NULL;
+
+model->name = NULL;
+model->nprops = 0;
+model->props = NULL;
+model->migratability = false;
+
+if (VIR_STRDUP(model->name, name) < 0)
+goto cleanup;
+
+VIR_STEAL_PTR(ret, model);
+
+ cleanup:
+qemuMonitorCPUModelInfoFree(model);
+return ret;
+}
+
+
void
qemuMonitorCPUModelInfoFree(qemuMonitorCPUModelInfoPtr model_info)
{
@@ -3693,18 +3718,15 @@ qemuMonitorCPUModelInfoFree(qemuMonitorCPUModelInfoPtr
model_info)
qemuMonitorCPUModelInfoPtr
qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig)
{
-qemuMonitorCPUModelInfoPtr copy;
+qemuMonitorCPUModelInfoPtr copy = NULL;
size_t i;
-if (VIR_ALLOC(copy) < 0)
+if (!orig || !(copy = qemuMonitorCPUModelInfoNew(orig->name)))
goto error;
if (VIR_ALLOC_N(copy->props, orig->nprops) < 0)
goto error;
-if (VIR_STRDUP(copy->name, orig->name) < 0)
-goto error;
-
copy->migratability = orig->migratability;
copy->nprops = orig->nprops;
diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h
index 66bfdb0e5c..d486af201a 100644
--- a/src/qemu/qemu_monitor.h
+++ b/src/qemu/qemu_monitor.h
@@ -1042,6 +1042,8 @@ int qemuMonitorGetCPUModelExpansion(qemuMonitorPtr mon,
void qemuMonitorCPUModelInfoFree(qemuMonitorCPUModelInfoPtr model_info);
+qemuMonitorCPUModelInfoPtr qemuMonitorCPUModelInfoNew(const char *name);
+
qemuMonitorCPUModelInfoPtr
qemuMonitorCPUModelInfoCopy(const qemuMonitorCPUModelInfo *orig);
--
2.17.1
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[libvirt] [PATCH v5 21/36] qemu_process: Use unique directories for QMP processes
Multiple QEMU processes for QMP commands can operate concurrently.
Use a unique directory under libDir for each QEMU processes
to avoid pidfile and unix socket collision between processes.
The pid file name is changed from "capabilities.pidfile" to "qmp.pid"
because we no longer need to avoid a possible clash with a qemu domain
called "capabilities" now that the processes artifacts are stored in
their own unique temporary directories.
"Capabilities" was changed to "qmp" in the pid file name because these
processes are no longer specific to the capabilities usecase and are
more generic in terms of being used for any general purpose QMP message
exchanges with a QEMU process that is not associated with a domain.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 24 ++--
src/qemu/qemu_process.h | 1 +
2 files changed, 15 insertions(+), 10 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 80b938cc0b..26ba59143d 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8119,6 +8119,7 @@ qemuProcessQmpFree(qemuProcessQmpPtr proc)
VIR_FREE(proc->binary);
VIR_FREE(proc->libDir);
+VIR_FREE(proc->uniqDir);
VIR_FREE(proc->monpath);
VIR_FREE(proc->monarg);
VIR_FREE(proc->pidfile);
@@ -8181,33 +8182,33 @@ qemuProcessQmpNew(const char *binary,
static int
qemuProcessQmpInit(qemuProcessQmpPtr proc)
{
+char *template = NULL;
int ret = -1;
VIR_DEBUG("Beginning VM startup process"
" proc=%p, emulator=%s",
proc, proc->binary);
-/* the ".sock" sufix is important to avoid a possible clash with a qemu
- * domain called "capabilities"
- */
-if (virAsprintf(>monpath, "%s/%s", proc->libDir,
-"capabilities.monitor.sock") < 0)
+if (virAsprintf(, "%s/qemu.XX", proc->libDir) < 0)
+goto cleanup;
+
+proc->uniqDir = mkdtemp(template);
+
+if (virAsprintf(>monpath, "%s/%s", proc->uniqDir,
+"qmp.monitor") < 0)
goto cleanup;
if (virAsprintf(>monarg, "unix:%s,server,nowait", proc->monpath) < 0)
goto cleanup;
-/* ".pidfile" suffix is used rather than ".pid" to avoid a possible clash
- * with a qemu domain called "capabilities"
+/*
* Normally we'd use runDir for pid files, but because we're using
* -daemonize we need QEMU to be allowed to create them, rather
* than libvirtd. So we're using libDir which QEMU can write to
*/
-if (virAsprintf(>pidfile, "%s/%s", proc->libDir,
"capabilities.pidfile") < 0)
+if (virAsprintf(>pidfile, "%s/%s", proc->uniqDir, "qmp.pid") < 0)
goto cleanup;
-virPidFileForceCleanupPath(proc->pidfile);
-
ret = 0;
cleanup:
@@ -8446,4 +8447,7 @@ void qemuProcessQmpStop(qemuProcessQmpPtr proc)
if (proc->pidfile)
unlink(proc->pidfile);
+
+if (proc->uniqDir)
+rmdir(proc->uniqDir);
}
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index 0a79d15290..2ef521d825 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -226,6 +226,7 @@ struct _qemuProcessQmp {
char *monarg;
char *monpath;
char *pidfile;
+char *uniqDir;
virCommandPtr cmd;
qemuMonitorPtr mon;
pid_t pid;
--
2.17.1
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[libvirt] [PATCH v5 22/36] qemu_process: Stop locking QMP process monitor immediately
Locking the monitor object immediately after call to qemuMonitorOpen
doesn't make sense now that we have expanded the QEMU process code to
cover more than the original capabilities usecase.
Removing the monitor lock makes the qemuProcessQmpConnectMonitor code
consistent with the qemuConnectMonitor code used to establish the
monitor when QEMU process is started for domains.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 26ba59143d..b491f9f91a 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8331,8 +8331,6 @@ qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
VIR_STEAL_PTR(proc->mon, mon);
-virObjectLock(proc->mon);
-
/* Exit capabilities negotiation mode and enter QEMU command mode
* by issuing qmp_capabilities command to QEMU */
if (qemuMonitorSetCapabilities(proc->mon) < 0) {
--
2.17.1
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[libvirt] [PATCH v5 15/36] qemu_process: Don't open monitor if process failed
Gracefully handle case when proc activation failed prior to calling.
Consistent with the existing code for qemuConnectMonitor (for domains)
in qemu_process.c...
- Handle qemMonitorOpen failure with INFO message and NULL ptr
- Identify parameters passed to qemuMonitorOpen
Monitor callbacks will be removed in future patch so we prep for passing
NULL for the callback pointer.
Set proc->mon to NULL then use VIR_STEAL_PTR if successful to be
consistent with other functions.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 29 +++--
1 file changed, 27 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 8906a22e3c..31d41688fe 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8262,25 +8262,50 @@ static int
qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
{
int ret = -1;
+qemuMonitorPtr mon = NULL;
+unsigned long long timeout = 0;
+bool retry = true;
+bool enableJson = true;
+virQEMUDriverPtr driver = NULL;
+qemuMonitorCallbacksPtr monCallbacks =
virDomainXMLOptionPtr xmlopt = NULL;
virDomainChrSourceDef monConfig;
VIR_DEBUG("proc=%p, emulator=%s, proc->pid=%lld",
proc, NULLSTR(proc->binary), (long long)proc->pid);
+if (!proc || !proc->pid) {
+ret = 0;
+goto cleanup;
+}
+
+proc->mon = NULL;
+
monConfig.type = VIR_DOMAIN_CHR_TYPE_UNIX;
monConfig.data.nix.path = proc->monpath;
monConfig.data.nix.listen = false;
+/* Create a NULL Domain object for qemuMonitor */
if (!(xmlopt = virDomainXMLOptionNew(NULL, NULL, NULL, NULL, NULL)) ||
!(proc->vm = virDomainObjNew(xmlopt)))
goto cleanup;
proc->vm->pid = proc->pid;
-if (!(proc->mon = qemuMonitorOpen(proc->vm, , true, true,
- 0, , NULL)))
+mon = qemuMonitorOpen(proc->vm,
+ ,
+ enableJson,
+ retry,
+ timeout,
+ monCallbacks,
+ driver);
+
+if (!mon) {
+VIR_INFO("Failed to connect monitor to emulator %s", proc->binary);
goto cleanup;
+}
+
+VIR_STEAL_PTR(proc->mon, mon);
virObjectLock(proc->mon);
--
2.17.1
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[libvirt] [PATCH v5 12/36] qemu_process: Store libDir in qemuProcessQmp struct
Store libDir path in the qemuProcessQmp struct in anticipation of moving
path construction code into qemuProcessQmpInit function.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 8 +---
src/qemu/qemu_process.h | 1 +
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index a688be7f2c..d4025ac1bc 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8115,6 +8115,7 @@ qemuProcessQmpFree(qemuProcessQmpPtr proc)
qemuProcessQmpStop(proc);
VIR_FREE(proc->binary);
+VIR_FREE(proc->libDir);
VIR_FREE(proc->monpath);
VIR_FREE(proc->monarg);
VIR_FREE(proc->pidfile);
@@ -8135,7 +8136,8 @@ qemuProcessQmpNew(const char *binary,
if (VIR_ALLOC(proc) < 0)
goto error;
-if (VIR_STRDUP(proc->binary, binary) < 0)
+if (VIR_STRDUP(proc->binary, binary) < 0 ||
+VIR_STRDUP(proc->libDir, libDir) < 0)
goto error;
@@ -8146,7 +8148,7 @@ qemuProcessQmpNew(const char *binary,
/* the ".sock" sufix is important to avoid a possible clash with a qemu
* domain called "capabilities"
*/
-if (virAsprintf(>monpath, "%s/%s", libDir,
+if (virAsprintf(>monpath, "%s/%s", proc->libDir,
"capabilities.monitor.sock") < 0)
goto error;
if (virAsprintf(>monarg, "unix:%s,server,nowait", proc->monpath) < 0)
@@ -8158,7 +8160,7 @@ qemuProcessQmpNew(const char *binary,
* -daemonize we need QEMU to be allowed to create them, rather
* than libvirtd. So we're using libDir which QEMU can write to
*/
-if (virAsprintf(>pidfile, "%s/%s", libDir, "capabilities.pidfile") <
0)
+if (virAsprintf(>pidfile, "%s/%s", proc->libDir,
"capabilities.pidfile") < 0)
goto error;
virPidFileForceCleanupPath(proc->pidfile);
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index 1b64aeef4e..9967766120 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -218,6 +218,7 @@ typedef struct _qemuProcessQmp qemuProcessQmp;
typedef qemuProcessQmp *qemuProcessQmpPtr;
struct _qemuProcessQmp {
char *binary;
+char *libDir;
uid_t runUid;
gid_t runGid;
int status;
--
2.17.1
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[libvirt] [PATCH v5 11/36] qemu_process: Collect monitor code in single function
qemuMonitor code lives in qemuProcessQmpConnectMonitor rather than in
qemuProcessQmpNew and qemuProcessQmpLaunch.
This is consistent with existing structure in qemu_process.c where
qemuConnectMonitor function contains monitor code for domain process
activation.
Simple code moves in this patch. Improvements in later patch.
Only intended functional change in this patch is we don't
move (include) code to initiate process stop on failure to create monitor.
As comments in qemuProcessQmpStart say... Client must always call
qemuProcessStop and qemuProcessQmpFree, even in error cases.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 50 -
1 file changed, 24 insertions(+), 26 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 938d328235..a688be7f2c 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8163,10 +8163,6 @@ qemuProcessQmpNew(const char *binary,
virPidFileForceCleanupPath(proc->pidfile);
-proc->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
-proc->config.data.nix.path = proc->monpath;
-proc->config.data.nix.listen = false;
-
return proc;
error:
@@ -8198,7 +8194,6 @@ qemuProcessQmpInit(qemuProcessQmpPtr proc)
static int
qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
{
-virDomainXMLOptionPtr xmlopt = NULL;
const char *machine;
int ret = -1;
@@ -8250,6 +8245,28 @@ qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
goto cleanup;
}
+ret = 0;
+
+ cleanup:
+return ret;
+}
+
+
+/* Connect Monitor to QEMU Process
+ */
+static int
+qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
+{
+int ret = -1;
+virDomainXMLOptionPtr xmlopt = NULL;
+
+VIR_DEBUG("proc=%p, emulator=%s, proc->pid=%lld",
+ proc, NULLSTR(proc->binary), (long long)proc->pid);
+
+proc->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
+proc->config.data.nix.path = proc->monpath;
+proc->config.data.nix.listen = false;
+
if (!(xmlopt = virDomainXMLOptionNew(NULL, NULL, NULL, NULL, NULL)) ||
!(proc->vm = virDomainObjNew(xmlopt)))
goto cleanup;
@@ -8257,7 +8274,7 @@ qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
proc->vm->pid = proc->pid;
if (!(proc->mon = qemuMonitorOpen(proc->vm, >config, true, true,
- 0, , NULL)))
+ 0, , NULL)))
goto cleanup;
virObjectLock(proc->mon);
@@ -8265,27 +8282,8 @@ qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
ret = 0;
cleanup:
-if (!proc->mon)
-qemuProcessQmpStop(proc);
+VIR_DEBUG("ret=%i", ret);
virObjectUnref(xmlopt);
-
-return ret;
-}
-
-
-/* Connect Monitor to QEMU Process
- */
-static int
-qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
-{
-int ret = -1;
-
-VIR_DEBUG("proc=%p, emulator=%s, proc->pid=%lld",
- proc, NULLSTR(proc->binary), (long long)proc->pid);
-
-ret = 0;
-
-VIR_DEBUG("ret=%i", ret);
return ret;
}
--
2.17.1
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[libvirt] [PATCH v5 14/36] qemu_process: Stop retaining Monitor config in qemuProcessQmp
The monitor config data is removed from the qemuProcessQmp struct.
The monitor config data can be initialized immediately before call to
qemuMonitorOpen and does not need to be maintained after the call
because qemuMonitorOpen copies any strings it needs.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 9 +
src/qemu/qemu_process.h | 1 -
2 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index fc15cb1a3c..8906a22e3c 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8263,13 +8263,14 @@ qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
{
int ret = -1;
virDomainXMLOptionPtr xmlopt = NULL;
+virDomainChrSourceDef monConfig;
VIR_DEBUG("proc=%p, emulator=%s, proc->pid=%lld",
proc, NULLSTR(proc->binary), (long long)proc->pid);
-proc->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
-proc->config.data.nix.path = proc->monpath;
-proc->config.data.nix.listen = false;
+monConfig.type = VIR_DOMAIN_CHR_TYPE_UNIX;
+monConfig.data.nix.path = proc->monpath;
+monConfig.data.nix.listen = false;
if (!(xmlopt = virDomainXMLOptionNew(NULL, NULL, NULL, NULL, NULL)) ||
!(proc->vm = virDomainObjNew(xmlopt)))
@@ -8277,7 +8278,7 @@ qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
proc->vm->pid = proc->pid;
-if (!(proc->mon = qemuMonitorOpen(proc->vm, >config, true, true,
+if (!(proc->mon = qemuMonitorOpen(proc->vm, , true, true,
0, , NULL)))
goto cleanup;
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index 9967766120..0a79d15290 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -228,7 +228,6 @@ struct _qemuProcessQmp {
char *pidfile;
virCommandPtr cmd;
qemuMonitorPtr mon;
-virDomainChrSourceDef config;
pid_t pid;
virDomainObjPtr vm;
bool forceTCG;
--
2.17.1
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[libvirt] [PATCH v5 06/36] qemu_capabilities: Stop QEMU process before freeing
virQEMUCapsInitQMP now stops QEMU process in all execution paths,
before freeing the process structure.
The qemuProcessQmpStop function can be called multiple times without
problems... Won't attempt to stop processes and free resources multiple
times.
Follow the convention established in qemu_process of
1) alloc process structure
2) start process
3) use process
4) stop process
5) free process data structure
The process data structure persists after the process activation fails
or the process dies or is killed so stderr strings can be retrieved
until the process data structure is freed.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 1 +
src/qemu/qemu_process.c | 19 ---
2 files changed, 13 insertions(+), 7 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index d903fbddf8..a79329a134 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4273,6 +4273,7 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
ret = 0;
cleanup:
+qemuProcessQmpStop(proc);
qemuProcessQmpFree(proc);
return ret;
}
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 8465448a49..fa050a1a27 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8263,14 +8263,17 @@ qemuProcessQmpRun(qemuProcessQmpPtr proc,
void
qemuProcessQmpStop(qemuProcessQmpPtr proc)
{
-if (proc->mon)
+if (proc->mon) {
virObjectUnlock(proc->mon);
-qemuMonitorClose(proc->mon);
-proc->mon = NULL;
+qemuMonitorClose(proc->mon);
+proc->mon = NULL;
+}
-virCommandAbort(proc->cmd);
-virCommandFree(proc->cmd);
-proc->cmd = NULL;
+if (proc->cmd) {
+virCommandAbort(proc->cmd);
+virCommandFree(proc->cmd);
+proc->cmd = NULL;
+}
if (proc->monpath)
unlink(proc->monpath);
@@ -8287,8 +8290,10 @@ qemuProcessQmpStop(qemuProcessQmpPtr proc)
virStrerror(errno, ebuf, sizeof(ebuf)));
VIR_FREE(*proc->qmperr);
+
+proc->pid = 0;
}
+
if (proc->pidfile)
unlink(proc->pidfile);
-proc->pid = 0;
}
--
2.17.1
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[libvirt] [PATCH v5 10/36] qemu_process: Introduce qemuProcessQmpStart
Move a step closer to the function structure used elsewhere in
qemu_process where qemuProcessStart and qemuProcessStop are the exposed
functions.
qemuProcessQmpStart mirrors qemuProcessStart in calling sub functions to
initialize, launch the process and connect the monitor to the QEMU
process.
static functions qemuProcessQmpInit, qemuProcessQmpLaunch and
qemuProcessQmpConnectMonitor are introduced.
qemuProcessQmpLaunch is just renamed from qemuProcessQmpRun and
encapsulates all of the original code.
qemuProcessQmpInit and qemuProcessQmpMonitor are nearly empty functions
acting as placeholders for later patches where blocks of semi-complicated code
are cut/pasted into these functions without modification
(hopefully making review easier.)
Looking forward, the patch series ultimately moves the code into this
partitioning:
- qemuProcessQmpInit
Becomes the location of ~25 lines of code to create storage
directory, in thread safe way, and initialize paths
for monpath, monarg and pidfile.
- qemuProcessQmpLaunch
Becomes the location of ~48 lines of code used to create and run the
QEMU command.
- qemuProcessQmpConnectMonitor
Becomes the final location of ~58 lines of code used to open and
initialize the monitor connection between libvirt and qemu.
Three smaller, purpose-identifying, functions of ~60 lines or less seem
better than a single large process "start" function of > 130 lines.
Being able to compare and contrast between the domain and non-domain
versions of process code is useful too. There is some significant
overlap between what the non-domain and domain functions do. There is
also significant additional functionality in the domain functions that
might be useful in the non-domain functions in the future.
Possibly there could be sharing between non-domain and
domain process code in the future but common code would have
to be carefully extracted from the domain process code (not trivial.)
Mirroring the domain process code has some value, but
partitioning the code into logical chunks of < 60 lines
is the main reason for the static functions.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 4 +-
src/qemu/qemu_process.c | 94 +++-
src/qemu/qemu_process.h | 2 +-
3 files changed, 95 insertions(+), 5 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 997f8c19d5..ce60648897 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4265,7 +4265,7 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
runUid, runGid, false)))
goto cleanup;
-if (qemuProcessQmpRun(proc) < 0) {
+if (qemuProcessQmpStart(proc) < 0) {
if (proc->status != 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to probe QEMU binary with QMP: %s"),
@@ -4288,7 +4288,7 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
procTCG = qemuProcessQmpNew(qemuCaps->binary, libDir,
runUid, runGid, true);
-if (qemuProcessQmpRun(procTCG) < 0)
+if (qemuProcessQmpStart(procTCG) < 0)
goto cleanup;
if (virQEMUCapsInitQMPMonitorTCG(qemuCaps, procTCG->mon) < 0)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 8ad685f3ea..938d328235 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8175,8 +8175,28 @@ qemuProcessQmpNew(const char *binary,
}
-int
-qemuProcessQmpRun(qemuProcessQmpPtr proc)
+/* Initialize configuration and paths prior to starting QEMU
+ */
+static int
+qemuProcessQmpInit(qemuProcessQmpPtr proc)
+{
+int ret = -1;
+
+VIR_DEBUG("Beginning VM startup process"
+ " proc=%p, emulator=%s",
+ proc, proc->binary);
+
+ret = 0;
+
+VIR_DEBUG("ret=%i", ret);
+return ret;
+}
+
+
+/* Launch QEMU Process
+ */
+static int
+qemuProcessQmpLaunch(qemuProcessQmpPtr proc)
{
virDomainXMLOptionPtr xmlopt = NULL;
const char *machine;
@@ -8253,6 +8273,76 @@ qemuProcessQmpRun(qemuProcessQmpPtr proc)
}
+/* Connect Monitor to QEMU Process
+ */
+static int
+qemuProcessQmpConnectMonitor(qemuProcessQmpPtr proc)
+{
+int ret = -1;
+
+VIR_DEBUG("proc=%p, emulator=%s, proc->pid=%lld",
+ proc, NULLSTR(proc->binary), (long long)proc->pid);
+
+ret = 0;
+
+VIR_DEBUG("ret=%i", ret);
+return ret;
+}
+
+
+/**
+ * qemuProcessQmpStart:
+ * @proc: Stores Process and Connection State
+ *
+ * Start and connect to QEMU binary so QMP queries can be made.
+ *
+ * Usage:
+ * proc = qemuProcessQmpNew(binary, libDir, runUid, runGid, forceTCG);
+ * qemuProcessQmpStart(proc);
+ * ** Send QMP Queries to QEMU using monitor (proc->mon) **
+ * qemuProcessQmpStop(proc);
+ * qemuProcessQmpFree(proc);
+ *
+ * Check monitor is not NULL before using.
+ *
+ * QEMU probing failure results in monitor being NULL but is not
[libvirt] [PATCH v5 00/36] BaselineHypervisorCPU using QEMU QMP exchanges
Some architectures (S390) depend on QEMU to compute baseline CPU model and expand a models feature set. Interacting with QEMU requires starting the QEMU process and completing one or more query-cpu-model-baseline QMP exchanges with QEMU in addition to a query-cpu-model-expansion QMP exchange to expand all features in the model. See "s390x CPU models: exposing features" patch set on Qemu-devel for discussion of QEMU aspects. This is part of resolution of: https://bugzilla.redhat.com/show_bug.cgi?id=1511999 - This patch set fixes all process code issues identified here: https://www.redhat.com/archives/libvir-list/2018-November/msg00349.html in patches 1-22 of the series. The remaining patches implement the BaselineHypervisorCPU changes using the non-domain qemu process code. The process changes (patches 1-22)... - Make the process code generic (not capabilities specific) for use by BaselineHypervisorCPU - Many of the process patches are simple code moves with implementation changes in other distinct patches - A thread safe library function creates a unique directory under libDir for each QEMU process (for QMP messaging) to decouple processes in terms of sockets and file system footprint. The BaselineHypervisorCPU changes (patches 22-36)... - Fix all issues raised in patch sets 1-4. Thanks, Chris Chris Venteicher (36): qemu_process: Move process code from qemu_capabilities to qemu_process qemu_process: Use qemuProcessQmp prefix qemu_process: Limit qemuProcessQmpNew to const input strings qemu_process: Refer to proc not cmd in process code qemu_process: Use consistent name for stop process function qemu_capabilities: Stop QEMU process before freeing qemu_process: Use qemuProcessQmp struct for a single process qemu_process: All ProcessQMP errors are fatal qemu_process: Persist stderr in qemuProcessQmp struct qemu_process: Introduce qemuProcessQmpStart qemu_process: Collect monitor code in single function qemu_process: Store libDir in qemuProcessQmp struct qemu_process: Setup paths within qemuProcessQmpInit qemu_process: Stop retaining Monitor config in qemuProcessQmp qemu_process: Don't open monitor if process failed qemu_process: Cleanup qemuProcessQmp alloc function qemu_process: Cleanup qemuProcessQmpStop function qemu_process: Catch process free before process stop qemu_monitor: Make monitor callbacks optional qemu_process: Enter QMP command mode when starting QEMU Process qemu_process: Use unique directories for QMP processes qemu_process: Stop locking QMP process monitor immediately qemu_monitor: Introduce qemuMonitorCPUModelInfoNew qemu_monitor: Introduce qemuMonitorCPUModelInfo / JSON conversion qemu_capabilities: Introduce virQEMuCapsMigratablePropsDiff qemu_monitor: qemuMonitorGetCPUModelExpansion inputs and outputs CPUModelInfo qemu_capabilities: Introduce CPUModelInfo to virCPUDef function qemu_capabilities: Introduce virCPUDef to CPUModelInfo function qemu_monitor: Support query-cpu-model-baseline QMP command qemu_driver: Consolidate code to baseline using libvirt qemu_driver: Decouple code for baseline using libvirt qemu_driver: Identify using libvirt as a distinct way to compute baseline qemu_driver: Support baseline calculation using QEMU qemu_driver: Support feature expansion via QEMU when baselining cpu qemu_driver: Remove unsupported props in expanded hypervisor baseline output qemu_monitor: Default props to migratable when expanding cpu model src/qemu/qemu_capabilities.c | 617 -- src/qemu/qemu_capabilities.h | 4 + src/qemu/qemu_driver.c| 216 +- src/qemu/qemu_monitor.c | 184 +- src/qemu/qemu_monitor.h | 29 +- src/qemu/qemu_monitor_json.c | 226 +-- src/qemu/qemu_monitor_json.h | 12 +- src/qemu/qemu_process.c | 356 ++ src/qemu/qemu_process.h | 32 + tests/cputest.c | 11 +- .../caps_2.10.0.s390x.xml | 60 +- .../caps_2.11.0.s390x.xml | 58 +- .../caps_2.12.0.s390x.xml | 56 +- .../qemucapabilitiesdata/caps_2.8.0.s390x.xml | 32 +- .../qemucapabilitiesdata/caps_2.9.0.s390x.xml | 34 +- .../qemucapabilitiesdata/caps_3.0.0.s390x.xml | 64 +- tests/qemucapabilitiestest.c | 7 + 17 files changed, 1396 insertions(+), 602 deletions(-) -- 2.17.1 -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
[libvirt] [PATCH v5 13/36] qemu_process: Setup paths within qemuProcessQmpInit
Move code for setting paths and prepping file system from
qemuProcessQmpNew to qemuProcessQmpInit.
This keeps qemuProcessQmpNew limited to data structures
and path initialization is done in qemuProcessQmpInit.
The patch is a non-functional, cut / paste change,
however goto is now "cleanup" rather than "error".
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 46 +
1 file changed, 24 insertions(+), 22 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index d4025ac1bc..fc15cb1a3c 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8145,14 +8145,34 @@ qemuProcessQmpNew(const char *binary,
proc->runGid = runGid;
proc->forceTCG = forceTCG;
+return proc;
+
+ error:
+qemuProcessQmpFree(proc);
+return NULL;
+}
+
+
+/* Initialize configuration and paths prior to starting QEMU
+ */
+static int
+qemuProcessQmpInit(qemuProcessQmpPtr proc)
+{
+int ret = -1;
+
+VIR_DEBUG("Beginning VM startup process"
+ " proc=%p, emulator=%s",
+ proc, proc->binary);
+
/* the ".sock" sufix is important to avoid a possible clash with a qemu
* domain called "capabilities"
*/
if (virAsprintf(>monpath, "%s/%s", proc->libDir,
"capabilities.monitor.sock") < 0)
-goto error;
+goto cleanup;
+
if (virAsprintf(>monarg, "unix:%s,server,nowait", proc->monpath) < 0)
-goto error;
+goto cleanup;
/* ".pidfile" suffix is used rather than ".pid" to avoid a possible clash
* with a qemu domain called "capabilities"
@@ -8161,31 +8181,13 @@ qemuProcessQmpNew(const char *binary,
* than libvirtd. So we're using libDir which QEMU can write to
*/
if (virAsprintf(>pidfile, "%s/%s", proc->libDir,
"capabilities.pidfile") < 0)
-goto error;
+goto cleanup;
virPidFileForceCleanupPath(proc->pidfile);
-return proc;
-
- error:
-qemuProcessQmpFree(proc);
-return NULL;
-}
-
-
-/* Initialize configuration and paths prior to starting QEMU
- */
-static int
-qemuProcessQmpInit(qemuProcessQmpPtr proc)
-{
-int ret = -1;
-
-VIR_DEBUG("Beginning VM startup process"
- " proc=%p, emulator=%s",
- proc, proc->binary);
-
ret = 0;
+ cleanup:
VIR_DEBUG("ret=%i", ret);
return ret;
}
--
2.17.1
--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list
[libvirt] [PATCH v5 08/36] qemu_process: All ProcessQMP errors are fatal
In the past capabilities could be determined in other ways if QMP
messaging didn't succeed so a non-fatal error case was included in the
capabilities and QMP Process code.
For a while now, QMP capabilities failure has been a fatal case.
This patch makes QMP process failures return as a fatal error in all
cases consistent with 1) all failures actually being fatal in
QMP capabilities code and 2) the QMP process code being made generic.
The process changes impact the capabilities code because non-fatal
return codes are no longer returned.
The rest of the QMP associated capabilities code is updated to make all
errors fatal for consistency.
The process changes also force a change in QMP process stderr reporting
because the previous triggers for stderr reporting are no longer passed
through the function interfaces.
As best I can tell the only case where QMP process stderr should be
explicitly reported is when the QMP process exits with a non-zero
status.
Error reporting is moved to virQEMUCapsInitQMP and the QMP process
stderr is reported only when the QMP process status code is non-zero
(and is only reported for the primary QMP query not the secondary TCG
specific QMP query.)
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 83
src/qemu/qemu_process.c | 24 ---
src/qemu/qemu_process.h | 1 +
3 files changed, 45 insertions(+), 63 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index bed9ca26a1..1efec85b57 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4038,7 +4038,6 @@ virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,
if (qemuMonitorSetCapabilities(mon) < 0) {
VIR_DEBUG("Failed to set monitor capabilities %s",
virGetLastErrorMessage());
-ret = 0;
goto cleanup;
}
@@ -4047,7 +4046,6 @@ virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,
) < 0) {
VIR_DEBUG("Failed to query monitor version %s",
virGetLastErrorMessage());
-ret = 0;
goto cleanup;
}
@@ -4218,7 +4216,6 @@ virQEMUCapsInitQMPMonitorTCG(virQEMUCapsPtr qemuCaps
ATTRIBUTE_UNUSED,
if (qemuMonitorSetCapabilities(mon) < 0) {
VIR_DEBUG("Failed to set monitor capabilities %s",
virGetLastErrorMessage());
-ret = 0;
goto cleanup;
}
@@ -4234,25 +4231,47 @@ virQEMUCapsInitQMPMonitorTCG(virQEMUCapsPtr qemuCaps
ATTRIBUTE_UNUSED,
}
+#define MESSAGE_ID_CAPS_PROBE_FAILURE "8ae2f3fb-2dbe-498e-8fbd-012d40afa361"
+
+static void
+virQEMUCapsLogProbeFailure(const char *binary)
+{
+virLogMetadata meta[] = {
+{ .key = "MESSAGE_ID", .s = MESSAGE_ID_CAPS_PROBE_FAILURE, .iv = 0 },
+{ .key = "LIBVIRT_QEMU_BINARY", .s = binary, .iv = 0 },
+{ .key = NULL },
+};
+
+virLogMessage(,
+ VIR_LOG_WARN,
+ __FILE__, __LINE__, __func__,
+ meta,
+ _("Failed to probe capabilities for %s: %s"),
+ binary, virGetLastErrorMessage());
+}
+
+
static int
virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
const char *libDir,
uid_t runUid,
- gid_t runGid,
- char **qmperr)
+ gid_t runGid)
{
qemuProcessQmpPtr proc = NULL;
qemuProcessQmpPtr procTCG = NULL;
+char *qmperr = NULL;
int ret = -1;
-int rc;
if (!(proc = qemuProcessQmpNew(qemuCaps->binary, libDir,
- runUid, runGid, qmperr, false)))
+ runUid, runGid, , false)))
goto cleanup;
-if ((rc = qemuProcessQmpRun(proc)) != 0) {
-if (rc == 1)
-ret = 0;
+if (qemuProcessQmpRun(proc) < 0) {
+if (proc->status != 0)
+virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("Failed to probe QEMU binary with QMP: %s"),
+ qmperr ? qmperr : _("uknown error"));
+
goto cleanup;
}
@@ -4270,11 +4289,8 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
procTCG = qemuProcessQmpNew(qemuCaps->binary, libDir,
runUid, runGid, NULL, true);
-if ((rc = qemuProcessQmpRun(procTCG)) != 0) {
-if (rc == 1)
-ret = 0;
+if (qemuProcessQmpRun(procTCG) < 0)
goto cleanup;
-}
if (virQEMUCapsInitQMPMonitorTCG(qemuCaps, procTCG->mon) < 0)
goto cleanup;
@@ -4283,34 +4299,19 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
ret = 0;
cleanup:
+if (ret < 0)
+virQEMUCapsLogProbeFailure(qemuCaps->binary);
+
qemuProcessQmpStop(proc);
qemuProcessQmpStop(procTCG);
qemuProcessQmpFree(proc);
qemuProcessQmpFree(procTCG);
+VIR_FREE(qmperr);
+
return ret;
}
[libvirt] [PATCH v5 09/36] qemu_process: Persist stderr in qemuProcessQmp struct
A qemuProcessQmp struct tracks the entire lifespan of a single QEMU Process
including storing error output when the process terminates or activation
fails.
Error output remains available until qemuProcessQmpFree is called.
The qmperr variable is renamed stderr (captures stderr from process.)
The stderr buffer no longer needs to be maintained outside of the
qemuProcessQmp structure because the structure is used for a single QEMU
process and the structures can be maintained as long as required
to retrieve the process error info.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 8 +++-
src/qemu/qemu_process.c | 9 +++--
src/qemu/qemu_process.h | 3 +--
3 files changed, 7 insertions(+), 13 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 1efec85b57..997f8c19d5 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4259,18 +4259,17 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
{
qemuProcessQmpPtr proc = NULL;
qemuProcessQmpPtr procTCG = NULL;
-char *qmperr = NULL;
int ret = -1;
if (!(proc = qemuProcessQmpNew(qemuCaps->binary, libDir,
- runUid, runGid, , false)))
+ runUid, runGid, false)))
goto cleanup;
if (qemuProcessQmpRun(proc) < 0) {
if (proc->status != 0)
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Failed to probe QEMU binary with QMP: %s"),
- qmperr ? qmperr : _("uknown error"));
+ proc->stderr ? proc->stderr : _("uknown error"));
goto cleanup;
}
@@ -4287,7 +4286,7 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
qemuProcessQmpStop(proc);
procTCG = qemuProcessQmpNew(qemuCaps->binary, libDir,
-runUid, runGid, NULL, true);
+runUid, runGid, true);
if (qemuProcessQmpRun(procTCG) < 0)
goto cleanup;
@@ -4306,7 +4305,6 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
qemuProcessQmpStop(procTCG);
qemuProcessQmpFree(proc);
qemuProcessQmpFree(procTCG);
-VIR_FREE(qmperr);
return ret;
}
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 2ec0d5340d..8ad685f3ea 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8118,6 +8118,7 @@ qemuProcessQmpFree(qemuProcessQmpPtr proc)
VIR_FREE(proc->monpath);
VIR_FREE(proc->monarg);
VIR_FREE(proc->pidfile);
+VIR_FREE(proc->stderr);
VIR_FREE(proc);
}
@@ -8127,7 +8128,6 @@ qemuProcessQmpNew(const char *binary,
const char *libDir,
uid_t runUid,
gid_t runGid,
- char **qmperr,
bool forceTCG)
{
qemuProcessQmpPtr proc = NULL;
@@ -8141,7 +8141,6 @@ qemuProcessQmpNew(const char *binary,
proc->runUid = runUid;
proc->runGid = runGid;
-proc->qmperr = qmperr;
proc->forceTCG = forceTCG;
/* the ".sock" sufix is important to avoid a possible clash with a qemu
@@ -8213,7 +8212,7 @@ qemuProcessQmpRun(qemuProcessQmpPtr proc)
virCommandSetGID(proc->cmd, proc->runGid);
virCommandSetUID(proc->cmd, proc->runUid);
-virCommandSetErrorBuffer(proc->cmd, proc->qmperr);
+virCommandSetErrorBuffer(proc->cmd, &(proc->stderr));
proc->status = 0;
@@ -8222,7 +8221,7 @@ qemuProcessQmpRun(qemuProcessQmpPtr proc)
if (proc->status != 0) {
VIR_DEBUG("QEMU %s exited with status %d: %s",
- proc->binary, proc->status, *proc->qmperr);
+ proc->binary, proc->status, proc->stderr);
goto cleanup;
}
@@ -8283,8 +8282,6 @@ qemuProcessQmpStop(qemuProcessQmpPtr proc)
(long long)proc->pid,
virStrerror(errno, ebuf, sizeof(ebuf)));
-VIR_FREE(*proc->qmperr);
-
proc->pid = 0;
}
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index a56e9608cd..3ddfa82918 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -221,7 +221,7 @@ struct _qemuProcessQmp {
uid_t runUid;
gid_t runGid;
int status;
-char **qmperr;
+char *stderr;
char *monarg;
char *monpath;
char *pidfile;
@@ -237,7 +237,6 @@ qemuProcessQmpPtr qemuProcessQmpNew(const char *binary,
const char *libDir,
uid_t runUid,
gid_t runGid,
-char **qmperr,
bool forceTCG);
void qemuProcessQmpFree(qemuProcessQmpPtr proc);
--
2.17.1
--
libvir-list mailing list
libvir-list@redhat.com
https://www.redhat.com/mailman/listinfo/libvir-list
[libvirt] [PATCH v5 02/36] qemu_process: Use qemuProcessQmp prefix
s/virQEMUCapsInitQMPCommand/qemuProcessQmp/
No functionality change.
Use file appropriate prefix in moved code.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 14 +++---
src/qemu/qemu_process.c | 28 ++--
src/qemu/qemu_process.h | 24
3 files changed, 33 insertions(+), 33 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 14b1ab5bec..2f78fe27fe 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4241,15 +4241,15 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
gid_t runGid,
char **qmperr)
{
-virQEMUCapsInitQMPCommandPtr cmd = NULL;
+qemuProcessQmpPtr cmd = NULL;
int ret = -1;
int rc;
-if (!(cmd = virQEMUCapsInitQMPCommandNew(qemuCaps->binary, libDir,
- runUid, runGid, qmperr)))
+if (!(cmd = qemuProcessQmpNew(qemuCaps->binary, libDir,
+ runUid, runGid, qmperr)))
goto cleanup;
-if ((rc = virQEMUCapsInitQMPCommandRun(cmd, false)) != 0) {
+if ((rc = qemuProcessQmpRun(cmd, false)) != 0) {
if (rc == 1)
ret = 0;
goto cleanup;
@@ -4259,8 +4259,8 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
goto cleanup;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
-virQEMUCapsInitQMPCommandAbort(cmd);
-if ((rc = virQEMUCapsInitQMPCommandRun(cmd, true)) != 0) {
+qemuProcessQmpAbort(cmd);
+if ((rc = qemuProcessQmpRun(cmd, true)) != 0) {
if (rc == 1)
ret = 0;
goto cleanup;
@@ -4273,7 +4273,7 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
ret = 0;
cleanup:
-virQEMUCapsInitQMPCommandFree(cmd);
+qemuProcessQmpFree(cmd);
return ret;
}
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 2cc52d3394..35e0c6172a 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8108,12 +8108,12 @@ static qemuMonitorCallbacks callbacks = {
void
-virQEMUCapsInitQMPCommandFree(virQEMUCapsInitQMPCommandPtr cmd)
+qemuProcessQmpFree(qemuProcessQmpPtr cmd)
{
if (!cmd)
return;
-virQEMUCapsInitQMPCommandAbort(cmd);
+qemuProcessQmpAbort(cmd);
VIR_FREE(cmd->binary);
VIR_FREE(cmd->monpath);
VIR_FREE(cmd->monarg);
@@ -8122,14 +8122,14 @@
virQEMUCapsInitQMPCommandFree(virQEMUCapsInitQMPCommandPtr cmd)
}
-virQEMUCapsInitQMPCommandPtr
-virQEMUCapsInitQMPCommandNew(char *binary,
- const char *libDir,
- uid_t runUid,
- gid_t runGid,
- char **qmperr)
+qemuProcessQmpPtr
+qemuProcessQmpNew(char *binary,
+ const char *libDir,
+ uid_t runUid,
+ gid_t runGid,
+ char **qmperr)
{
-virQEMUCapsInitQMPCommandPtr cmd = NULL;
+qemuProcessQmpPtr cmd = NULL;
if (VIR_ALLOC(cmd) < 0)
goto error;
@@ -8168,7 +8168,7 @@ virQEMUCapsInitQMPCommandNew(char *binary,
return cmd;
error:
-virQEMUCapsInitQMPCommandFree(cmd);
+qemuProcessQmpFree(cmd);
return NULL;
}
@@ -8178,8 +8178,8 @@ virQEMUCapsInitQMPCommandNew(char *binary,
* 1 when probing QEMU failed
*/
int
-virQEMUCapsInitQMPCommandRun(virQEMUCapsInitQMPCommandPtr cmd,
- bool forceTCG)
+qemuProcessQmpRun(qemuProcessQmpPtr cmd,
+ bool forceTCG)
{
virDomainXMLOptionPtr xmlopt = NULL;
const char *machine;
@@ -8249,7 +8249,7 @@ virQEMUCapsInitQMPCommandRun(virQEMUCapsInitQMPCommandPtr
cmd,
cleanup:
if (!cmd->mon)
-virQEMUCapsInitQMPCommandAbort(cmd);
+qemuProcessQmpAbort(cmd);
virObjectUnref(xmlopt);
return ret;
@@ -8261,7 +8261,7 @@ virQEMUCapsInitQMPCommandRun(virQEMUCapsInitQMPCommandPtr
cmd,
void
-virQEMUCapsInitQMPCommandAbort(virQEMUCapsInitQMPCommandPtr cmd)
+qemuProcessQmpAbort(qemuProcessQmpPtr cmd)
{
if (cmd->mon)
virObjectUnlock(cmd->mon);
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index 5e6f7c76ac..67ed90ad4d 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -214,9 +214,9 @@ int qemuProcessStartManagedPRDaemon(virDomainObjPtr vm);
void qemuProcessKillManagedPRDaemon(virDomainObjPtr vm);
-typedef struct _virQEMUCapsInitQMPCommand virQEMUCapsInitQMPCommand;
-typedef virQEMUCapsInitQMPCommand *virQEMUCapsInitQMPCommandPtr;
-struct _virQEMUCapsInitQMPCommand {
+typedef struct _qemuProcessQmp qemuProcessQmp;
+typedef qemuProcessQmp *qemuProcessQmpPtr;
+struct _qemuProcessQmp {
char *binary;
uid_t runUid;
gid_t runGid;
@@ -231,17 +231,17 @@ struct _virQEMUCapsInitQMPCommand {
virDomainObjPtr vm;
};
-virQEMUCapsInitQMPCommandPtr virQEMUCapsInitQMPCommandNew(char
[libvirt] [PATCH v5 07/36] qemu_process: Use qemuProcessQmp struct for a single process
In new process code, move from model where qemuProcessQmp struct can be
used to activate a series of Qemu processes to model where one
qemuProcessQmp struct is used for one and only one Qemu process.
By allowing only one process activation per qemuProcessQmp struct, the
struct can safely store process outputs like status and stderr, without
being overwritten, until qemuProcessQmpFree is called.
By doing this, process outputs like status and stderr can remain stored
in the qemuProcessQmp struct without being overwritten by subsequent
process activations.
The forceTCG parameter (use / don't use KVM) will be passed when the
qemuProcessQmp struct is initialized since the qemuProcessQmp struct
won't be reused.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 20
src/qemu/qemu_process.c | 10 ++
src/qemu/qemu_process.h | 7 ---
3 files changed, 26 insertions(+), 11 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index a79329a134..bed9ca26a1 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4242,14 +4242,15 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
char **qmperr)
{
qemuProcessQmpPtr proc = NULL;
+qemuProcessQmpPtr procTCG = NULL;
int ret = -1;
int rc;
if (!(proc = qemuProcessQmpNew(qemuCaps->binary, libDir,
- runUid, runGid, qmperr)))
+ runUid, runGid, qmperr, false)))
goto cleanup;
-if ((rc = qemuProcessQmpRun(proc, false)) != 0) {
+if ((rc = qemuProcessQmpRun(proc)) != 0) {
if (rc == 1)
ret = 0;
goto cleanup;
@@ -4259,14 +4260,23 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
goto cleanup;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
+
+/* The second QEMU process probes for TCG capabilities
+ * in case the first process reported KVM as enabled
+ * (otherwise the first one already reported TCG capabilities). */
+
qemuProcessQmpStop(proc);
-if ((rc = qemuProcessQmpRun(proc, true)) != 0) {
+
+procTCG = qemuProcessQmpNew(qemuCaps->binary, libDir,
+runUid, runGid, NULL, true);
+
+if ((rc = qemuProcessQmpRun(procTCG)) != 0) {
if (rc == 1)
ret = 0;
goto cleanup;
}
-if (virQEMUCapsInitQMPMonitorTCG(qemuCaps, proc->mon) < 0)
+if (virQEMUCapsInitQMPMonitorTCG(qemuCaps, procTCG->mon) < 0)
goto cleanup;
}
@@ -4274,7 +4284,9 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
cleanup:
qemuProcessQmpStop(proc);
+qemuProcessQmpStop(procTCG);
qemuProcessQmpFree(proc);
+qemuProcessQmpFree(procTCG);
return ret;
}
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index fa050a1a27..324151a7c3 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8127,7 +8127,8 @@ qemuProcessQmpNew(const char *binary,
const char *libDir,
uid_t runUid,
gid_t runGid,
- char **qmperr)
+ char **qmperr,
+ bool forceTCG)
{
qemuProcessQmpPtr proc = NULL;
@@ -8137,9 +8138,11 @@ qemuProcessQmpNew(const char *binary,
if (VIR_STRDUP(proc->binary, binary) < 0)
goto error;
+
proc->runUid = runUid;
proc->runGid = runGid;
proc->qmperr = qmperr;
+proc->forceTCG = forceTCG;
/* the ".sock" sufix is important to avoid a possible clash with a qemu
* domain called "capabilities"
@@ -8178,15 +8181,14 @@ qemuProcessQmpNew(const char *binary,
* 1 when probing QEMU failed
*/
int
-qemuProcessQmpRun(qemuProcessQmpPtr proc,
- bool forceTCG)
+qemuProcessQmpRun(qemuProcessQmpPtr proc)
{
virDomainXMLOptionPtr xmlopt = NULL;
const char *machine;
int status = 0;
int ret = -1;
-if (forceTCG)
+if (proc->forceTCG)
machine = "none,accel=tcg";
else
machine = "none,accel=kvm:tcg";
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index 9a72db9a08..51598b402e 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -229,18 +229,19 @@ struct _qemuProcessQmp {
virDomainChrSourceDef config;
pid_t pid;
virDomainObjPtr vm;
+bool forceTCG;
};
qemuProcessQmpPtr qemuProcessQmpNew(const char *binary,
const char *libDir,
uid_t runUid,
gid_t runGid,
-char **qmperr);
+char **qmperr,
+bool forceTCG);
void qemuProcessQmpFree(qemuProcessQmpPtr proc);
-int qemuProcessQmpRun(qemuProcessQmpPtr cmd,
- bool forceTCG);
[libvirt] [PATCH v5 04/36] qemu_process: Refer to proc not cmd in process code
s/cmd/proc/ in process code imported from qemu_capabilities.
No functionality is changed. Just variable renaming.
Process code imported from qemu_capabilities was oriented around
starting a process to issue a single QMP command.
Future usecases (ex. baseline, compare) expect to use a single process
to issue multiple different QMP commands.
This patch changes the variable naming from cmd to proc to put focus
on the process being maintained to issue commands.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 18 ++---
src/qemu/qemu_process.c | 138 +--
src/qemu/qemu_process.h | 4 +-
3 files changed, 80 insertions(+), 80 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 2f78fe27fe..41a0dfa844 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4241,39 +4241,39 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
gid_t runGid,
char **qmperr)
{
-qemuProcessQmpPtr cmd = NULL;
+qemuProcessQmpPtr proc = NULL;
int ret = -1;
int rc;
-if (!(cmd = qemuProcessQmpNew(qemuCaps->binary, libDir,
- runUid, runGid, qmperr)))
+if (!(proc = qemuProcessQmpNew(qemuCaps->binary, libDir,
+ runUid, runGid, qmperr)))
goto cleanup;
-if ((rc = qemuProcessQmpRun(cmd, false)) != 0) {
+if ((rc = qemuProcessQmpRun(proc, false)) != 0) {
if (rc == 1)
ret = 0;
goto cleanup;
}
-if (virQEMUCapsInitQMPMonitor(qemuCaps, cmd->mon) < 0)
+if (virQEMUCapsInitQMPMonitor(qemuCaps, proc->mon) < 0)
goto cleanup;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
-qemuProcessQmpAbort(cmd);
-if ((rc = qemuProcessQmpRun(cmd, true)) != 0) {
+qemuProcessQmpAbort(proc);
+if ((rc = qemuProcessQmpRun(proc, true)) != 0) {
if (rc == 1)
ret = 0;
goto cleanup;
}
-if (virQEMUCapsInitQMPMonitorTCG(qemuCaps, cmd->mon) < 0)
+if (virQEMUCapsInitQMPMonitorTCG(qemuCaps, proc->mon) < 0)
goto cleanup;
}
ret = 0;
cleanup:
-qemuProcessQmpFree(cmd);
+qemuProcessQmpFree(proc);
return ret;
}
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 46aed4fc9c..5f4853e0c4 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8108,17 +8108,17 @@ static qemuMonitorCallbacks callbacks = {
void
-qemuProcessQmpFree(qemuProcessQmpPtr cmd)
+qemuProcessQmpFree(qemuProcessQmpPtr proc)
{
-if (!cmd)
+if (!proc)
return;
-qemuProcessQmpAbort(cmd);
-VIR_FREE(cmd->binary);
-VIR_FREE(cmd->monpath);
-VIR_FREE(cmd->monarg);
-VIR_FREE(cmd->pidfile);
-VIR_FREE(cmd);
+qemuProcessQmpAbort(proc);
+VIR_FREE(proc->binary);
+VIR_FREE(proc->monpath);
+VIR_FREE(proc->monarg);
+VIR_FREE(proc->pidfile);
+VIR_FREE(proc);
}
@@ -8129,25 +8129,25 @@ qemuProcessQmpNew(const char *binary,
gid_t runGid,
char **qmperr)
{
-qemuProcessQmpPtr cmd = NULL;
+qemuProcessQmpPtr proc = NULL;
-if (VIR_ALLOC(cmd) < 0)
+if (VIR_ALLOC(proc) < 0)
goto error;
-if (VIR_STRDUP(cmd->binary, binary) < 0)
+if (VIR_STRDUP(proc->binary, binary) < 0)
goto error;
-cmd->runUid = runUid;
-cmd->runGid = runGid;
-cmd->qmperr = qmperr;
+proc->runUid = runUid;
+proc->runGid = runGid;
+proc->qmperr = qmperr;
/* the ".sock" sufix is important to avoid a possible clash with a qemu
* domain called "capabilities"
*/
-if (virAsprintf(>monpath, "%s/%s", libDir,
+if (virAsprintf(>monpath, "%s/%s", libDir,
"capabilities.monitor.sock") < 0)
goto error;
-if (virAsprintf(>monarg, "unix:%s,server,nowait", cmd->monpath) < 0)
+if (virAsprintf(>monarg, "unix:%s,server,nowait", proc->monpath) < 0)
goto error;
/* ".pidfile" suffix is used rather than ".pid" to avoid a possible clash
@@ -8156,19 +8156,19 @@ qemuProcessQmpNew(const char *binary,
* -daemonize we need QEMU to be allowed to create them, rather
* than libvirtd. So we're using libDir which QEMU can write to
*/
-if (virAsprintf(>pidfile, "%s/%s", libDir, "capabilities.pidfile") <
0)
+if (virAsprintf(>pidfile, "%s/%s", libDir, "capabilities.pidfile") <
0)
goto error;
-virPidFileForceCleanupPath(cmd->pidfile);
+virPidFileForceCleanupPath(proc->pidfile);
-cmd->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
-cmd->config.data.nix.path = cmd->monpath;
-cmd->config.data.nix.listen = false;
+proc->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
+proc->config.data.nix.path = proc->monpath;
+proc->config.data.nix.listen = false;
-return cmd;
+return proc;
error:
-
[libvirt] [PATCH v5 01/36] qemu_process: Move process code from qemu_capabilities to qemu_process
Qemu process code in qemu_capabilities.c is moved to qemu_process.c in
order to make the code usable outside the original capabilities
usecases.
The moved code activates and manages Qemu processes without
establishing a guest domain.
** This patch is a straight cut/paste move between files. **
(Exception: I did change a function prototype in qemu_process.h to be one
parameter per line.)
Then, subsequent patches modify the process code
to make function prefixes and variable names match qemu_process,
and make the code usable for more than the capabilities usecase.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 218 +--
src/qemu/qemu_process.c | 199
src/qemu/qemu_process.h | 30 +
3 files changed, 230 insertions(+), 217 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 20a1a0c201..14b1ab5bec 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -47,6 +47,7 @@
#define __QEMU_CAPSPRIV_H_ALLOW__
#include "qemu_capspriv.h"
#include "qemu_qapi.h"
+#include "qemu_process.h"
#include
#include
@@ -3939,18 +3940,6 @@ virQEMUCapsIsValid(void *data,
}
-static void virQEMUCapsMonitorNotify(qemuMonitorPtr mon ATTRIBUTE_UNUSED,
- virDomainObjPtr vm ATTRIBUTE_UNUSED,
- void *opaque ATTRIBUTE_UNUSED)
-{
-}
-
-static qemuMonitorCallbacks callbacks = {
-.eofNotify = virQEMUCapsMonitorNotify,
-.errorNotify = virQEMUCapsMonitorNotify,
-};
-
-
/**
* virQEMUCapsInitQMPArch:
* @qemuCaps: QEMU capabilities
@@ -4245,211 +4234,6 @@ virQEMUCapsInitQMPMonitorTCG(virQEMUCapsPtr qemuCaps
ATTRIBUTE_UNUSED,
}
-typedef struct _virQEMUCapsInitQMPCommand virQEMUCapsInitQMPCommand;
-typedef virQEMUCapsInitQMPCommand *virQEMUCapsInitQMPCommandPtr;
-struct _virQEMUCapsInitQMPCommand {
-char *binary;
-uid_t runUid;
-gid_t runGid;
-char **qmperr;
-char *monarg;
-char *monpath;
-char *pidfile;
-virCommandPtr cmd;
-qemuMonitorPtr mon;
-virDomainChrSourceDef config;
-pid_t pid;
-virDomainObjPtr vm;
-};
-
-
-static void
-virQEMUCapsInitQMPCommandAbort(virQEMUCapsInitQMPCommandPtr cmd)
-{
-if (cmd->mon)
-virObjectUnlock(cmd->mon);
-qemuMonitorClose(cmd->mon);
-cmd->mon = NULL;
-
-virCommandAbort(cmd->cmd);
-virCommandFree(cmd->cmd);
-cmd->cmd = NULL;
-
-if (cmd->monpath)
-unlink(cmd->monpath);
-
-virDomainObjEndAPI(>vm);
-
-if (cmd->pid != 0) {
-char ebuf[1024];
-
-VIR_DEBUG("Killing QMP caps process %lld", (long long)cmd->pid);
-if (virProcessKill(cmd->pid, SIGKILL) < 0 && errno != ESRCH)
-VIR_ERROR(_("Failed to kill process %lld: %s"),
- (long long)cmd->pid,
- virStrerror(errno, ebuf, sizeof(ebuf)));
-
-VIR_FREE(*cmd->qmperr);
-}
-if (cmd->pidfile)
-unlink(cmd->pidfile);
-cmd->pid = 0;
-}
-
-
-static void
-virQEMUCapsInitQMPCommandFree(virQEMUCapsInitQMPCommandPtr cmd)
-{
-if (!cmd)
-return;
-
-virQEMUCapsInitQMPCommandAbort(cmd);
-VIR_FREE(cmd->binary);
-VIR_FREE(cmd->monpath);
-VIR_FREE(cmd->monarg);
-VIR_FREE(cmd->pidfile);
-VIR_FREE(cmd);
-}
-
-
-static virQEMUCapsInitQMPCommandPtr
-virQEMUCapsInitQMPCommandNew(char *binary,
- const char *libDir,
- uid_t runUid,
- gid_t runGid,
- char **qmperr)
-{
-virQEMUCapsInitQMPCommandPtr cmd = NULL;
-
-if (VIR_ALLOC(cmd) < 0)
-goto error;
-
-if (VIR_STRDUP(cmd->binary, binary) < 0)
-goto error;
-
-cmd->runUid = runUid;
-cmd->runGid = runGid;
-cmd->qmperr = qmperr;
-
-/* the ".sock" sufix is important to avoid a possible clash with a qemu
- * domain called "capabilities"
- */
-if (virAsprintf(>monpath, "%s/%s", libDir,
-"capabilities.monitor.sock") < 0)
-goto error;
-if (virAsprintf(>monarg, "unix:%s,server,nowait", cmd->monpath) < 0)
-goto error;
-
-/* ".pidfile" suffix is used rather than ".pid" to avoid a possible clash
- * with a qemu domain called "capabilities"
- * Normally we'd use runDir for pid files, but because we're using
- * -daemonize we need QEMU to be allowed to create them, rather
- * than libvirtd. So we're using libDir which QEMU can write to
- */
-if (virAsprintf(>pidfile, "%s/%s", libDir, "capabilities.pidfile") <
0)
-goto error;
-
-virPidFileForceCleanupPath(cmd->pidfile);
-
-cmd->config.type = VIR_DOMAIN_CHR_TYPE_UNIX;
-cmd->config.data.nix.path = cmd->monpath;
-cmd->config.data.nix.listen = false;
-
-return cmd;
-
- error:
-virQEMUCapsInitQMPCommandFree(cmd);
-return NULL;
-}
-
-
-/* Returns -1 on
[libvirt] [PATCH v5 05/36] qemu_process: Use consistent name for stop process function
s/qemuProcessQmpAbort/qemuProcessQmpStop/ applied to change function name
used to stop QEMU processes in process code moved from qemu_capabilities.
No functionality change.
The new name, qemuProcessQmpStop, is consistent with the existing
function qemuProcessStop used to stop Domain processes.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_capabilities.c | 2 +-
src/qemu/qemu_process.c | 6 +++---
src/qemu/qemu_process.h | 2 +-
3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index 41a0dfa844..d903fbddf8 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -4259,7 +4259,7 @@ virQEMUCapsInitQMP(virQEMUCapsPtr qemuCaps,
goto cleanup;
if (virQEMUCapsGet(qemuCaps, QEMU_CAPS_KVM)) {
-qemuProcessQmpAbort(proc);
+qemuProcessQmpStop(proc);
if ((rc = qemuProcessQmpRun(proc, true)) != 0) {
if (rc == 1)
ret = 0;
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 5f4853e0c4..8465448a49 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8113,7 +8113,7 @@ qemuProcessQmpFree(qemuProcessQmpPtr proc)
if (!proc)
return;
-qemuProcessQmpAbort(proc);
+qemuProcessQmpStop(proc);
VIR_FREE(proc->binary);
VIR_FREE(proc->monpath);
VIR_FREE(proc->monarg);
@@ -8249,7 +8249,7 @@ qemuProcessQmpRun(qemuProcessQmpPtr proc,
cleanup:
if (!proc->mon)
-qemuProcessQmpAbort(proc);
+qemuProcessQmpStop(proc);
virObjectUnref(xmlopt);
return ret;
@@ -8261,7 +8261,7 @@ qemuProcessQmpRun(qemuProcessQmpPtr proc,
void
-qemuProcessQmpAbort(qemuProcessQmpPtr proc)
+qemuProcessQmpStop(qemuProcessQmpPtr proc)
{
if (proc->mon)
virObjectUnlock(proc->mon);
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index dea5a84e8c..9a72db9a08 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -242,6 +242,6 @@ void qemuProcessQmpFree(qemuProcessQmpPtr proc);
int qemuProcessQmpRun(qemuProcessQmpPtr cmd,
bool forceTCG);
-void qemuProcessQmpAbort(qemuProcessQmpPtr proc);
+void qemuProcessQmpStop(qemuProcessQmpPtr proc);
#endif /* __QEMU_PROCESS_H__ */
--
2.17.1
--
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[libvirt] [PATCH v5 03/36] qemu_process: Limit qemuProcessQmpNew to const input strings
Add the const qualifier on non modified strings
(string only copied inside qemuProcessQmpNew)
so that const strings can be used directly in calls to
qemuProcessQmpNew in future patches.
Signed-off-by: Chris Venteicher
---
src/qemu/qemu_process.c | 2 +-
src/qemu/qemu_process.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index 35e0c6172a..46aed4fc9c 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -8123,7 +8123,7 @@ qemuProcessQmpFree(qemuProcessQmpPtr cmd)
qemuProcessQmpPtr
-qemuProcessQmpNew(char *binary,
+qemuProcessQmpNew(const char *binary,
const char *libDir,
uid_t runUid,
gid_t runGid,
diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h
index 67ed90ad4d..6d4fbda5fc 100644
--- a/src/qemu/qemu_process.h
+++ b/src/qemu/qemu_process.h
@@ -231,7 +231,7 @@ struct _qemuProcessQmp {
virDomainObjPtr vm;
};
-qemuProcessQmpPtr qemuProcessQmpNew(char *binary,
+qemuProcessQmpPtr qemuProcessQmpNew(const char *binary,
const char *libDir,
uid_t runUid,
gid_t runGid,
--
2.17.1
--
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[libvirt] [PATCH v3] openvswitch: Add new port VLAN mode "dot1q-tunnel"
From: ZhiPeng Lu
Signed-off-by: ZhiPeng Lu
---
v1->v2:
1. Fix "make syntax-check" failure
v2->v3:
1. remove other_config when updating vlan
docs/formatnetwork.html.in | 17 +
docs/schemas/networkcommon.rng | 1 +
src/conf/netdev_vlan_conf.c | 2 +-
src/util/virnetdevopenvswitch.c | 7 +++
src/util/virnetdevvlan.h| 1 +
5 files changed, 19 insertions(+), 9 deletions(-)
diff --git a/docs/formatnetwork.html.in b/docs/formatnetwork.html.in
index 363a72b..3c1ae62 100644
--- a/docs/formatnetwork.html.in
+++ b/docs/formatnetwork.html.in
@@ -688,16 +688,17 @@
For network connections using Open vSwitch it is also possible
- to configure 'native-tagged' and 'native-untagged' VLAN modes
+ to configure 'native-tagged' and 'native-untagged' and 'dot1q-tunnel'
+ VLAN modes.
Since 1.1.0. This is done with the
- optional nativeMode attribute on
- the tag subelement: nativeMode
- may be set to 'tagged' or 'untagged'. The id
- attribute of the tag subelement
- containing nativeMode sets which VLAN is considered
- to be the "native" VLAN for this interface, and
+ optional nativeMode attribute on the
+ tag subelement: nativeMode
+ may be set to 'tagged' or 'untagged' or 'dot1q-tunnel'.
+ The id attribute of the tag
+ subelement containing nativeMode sets which VLAN is
+ considered to be the "native" VLAN for this interface, and
the nativeMode attribute determines whether or not
- traffic for that VLAN will be tagged.
+ traffic for that VLAN will be tagged or QinQ.
vlan elements can also be specified in
diff --git a/docs/schemas/networkcommon.rng b/docs/schemas/networkcommon.rng
index 2699555..11c48ff 100644
--- a/docs/schemas/networkcommon.rng
+++ b/docs/schemas/networkcommon.rng
@@ -223,6 +223,7 @@
tagged
untagged
+dot1q-tunnel
diff --git a/src/conf/netdev_vlan_conf.c b/src/conf/netdev_vlan_conf.c
index dff49c6..79710d9 100644
--- a/src/conf/netdev_vlan_conf.c
+++ b/src/conf/netdev_vlan_conf.c
@@ -29,7 +29,7 @@
#define VIR_FROM_THIS VIR_FROM_NONE
VIR_ENUM_IMPL(virNativeVlanMode, VIR_NATIVE_VLAN_MODE_LAST,
- "default", "tagged", "untagged")
+ "default", "tagged", "untagged", "dot1q-tunnel")
int
virNetDevVlanParse(xmlNodePtr node, xmlXPathContextPtr ctxt, virNetDevVlanPtr
def)
diff --git a/src/util/virnetdevopenvswitch.c b/src/util/virnetdevopenvswitch.c
index 8fe06fd..9fec30b 100644
--- a/src/util/virnetdevopenvswitch.c
+++ b/src/util/virnetdevopenvswitch.c
@@ -91,6 +91,11 @@ virNetDevOpenvswitchConstructVlans(virCommandPtr cmd,
virNetDevVlanPtr virtVlan)
virCommandAddArg(cmd, "vlan_mode=native-untagged");
virCommandAddArgFormat(cmd, "tag=%d", virtVlan->nativeTag);
break;
+case VIR_NATIVE_VLAN_MODE_DOT1Q_TUNNEL:
+virCommandAddArg(cmd, "vlan_mode=dot1q-tunnel");
+virCommandAddArg(cmd, "other_config:qinq-ethtype=802.1q");
+virCommandAddArgFormat(cmd, "tag=%d", virtVlan->nativeTag);
+break;
case VIR_NATIVE_VLAN_MODE_DEFAULT:
default:
break;
@@ -504,6 +509,8 @@ int virNetDevOpenvswitchUpdateVlan(const char *ifname,
"--", "--if-exists", "clear", "Port", ifname, "tag",
"--", "--if-exists", "clear", "Port", ifname, "trunk",
"--", "--if-exists", "clear", "Port", ifname,
"vlan_mode",
+ "--", "--if-exists", "remove", "Port", ifname,
"other_config",
+ "qinq-ethtype", NULL,
"--", "--if-exists", "set", "Port", ifname, NULL);
if (virNetDevOpenvswitchConstructVlans(cmd, virtVlan) < 0)
diff --git a/src/util/virnetdevvlan.h b/src/util/virnetdevvlan.h
index be85f59..0667f9d 100644
--- a/src/util/virnetdevvlan.h
+++ b/src/util/virnetdevvlan.h
@@ -29,6 +29,7 @@ typedef enum {
VIR_NATIVE_VLAN_MODE_DEFAULT = 0,
VIR_NATIVE_VLAN_MODE_TAGGED,
VIR_NATIVE_VLAN_MODE_UNTAGGED,
+VIR_NATIVE_VLAN_MODE_DOT1Q_TUNNEL,
VIR_NATIVE_VLAN_MODE_LAST
} virNativeVlanMode;
--
1.8.3.1
--
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[libvirt] [GSoC] Update ideas page
Dear list, Google announced another round of GSoC [1]. The organization applications can be filled mid January next year (~1.5 month to go). Please update our Ideas page [2] if you have any idea for student projects (you do not have to mentor it if you don't feel like it). Similarly, if you want to mentor certain idea and there is no mentor assigned yet, do not hesitate to add yourself there. Michal 1: https://developers.google.com/open-source/gsoc/timeline 2: https://wiki.libvirt.org/page/Google_Summer_of_Code_Ideas -- libvir-list mailing list libvir-list@redhat.com https://www.redhat.com/mailman/listinfo/libvir-list
