[libvirt] [PATCH] vcpu: teach getVcpusFlags about current
Eric Blake
eblake at redhat.com
Fri Jul 15 23:38:14 UTC 2011
Now that virDomainSetVcpusFlags knows about VIR_DOMAIN_AFFECT_CURRENT,
so should virDomainGetVcpusFlags.
Unfortunately, the virsh counterpart 'virsh vcpucount' has already
commandeered --current for a different meaning, so virsh does not
have a way to expose this new calling capability unless we either
break backward compatibility or consistency with other virsh commands
that take --live and --config.
* src/libvirt.c (virDomainGetVcpusFlags): Allow
VIR_DOMAIN_AFFECT_CURRENT.
* src/libxl/libxl_driver.c (libxlDomainGetVcpusFlags): Likewise.
* src/qemu/qemu_driver.c (qemudDomainGetVcpusFlags): Likewise.
* src/test/test_driver.c (testDomainGetVcpusFlags): Likewise.
* src/xen/xen_driver.c (xenUnifiedDomainGetVcpusFlags): Likewise.
---
In response to:
https://www.redhat.com/archives/libvir-list/2011-July/msg00967.html
src/libvirt.c | 4 ++--
src/libxl/libxl_driver.c | 29 +++++++++++++++++++++--------
src/qemu/qemu_driver.c | 29 +++++++++++++++++++++--------
src/test/test_driver.c | 31 +++++++++++++++++++++++--------
src/xen/xen_driver.c | 7 -------
5 files changed, 67 insertions(+), 33 deletions(-)
diff --git a/src/libvirt.c b/src/libvirt.c
index 4de718d..def3fb9 100644
--- a/src/libvirt.c
+++ b/src/libvirt.c
@@ -6951,8 +6951,8 @@ virDomainGetVcpusFlags(virDomainPtr domain, unsigned int flags)
return -1;
}
- /* Exactly one of these two flags should be set. */
- if (!(flags & VIR_DOMAIN_AFFECT_LIVE) == !(flags & VIR_DOMAIN_AFFECT_CONFIG)) {
+ /* At most one of these two flags should be set. */
+ if ((flags & VIR_DOMAIN_AFFECT_LIVE) && (flags & VIR_DOMAIN_AFFECT_CONFIG)) {
virLibDomainError(VIR_ERR_INVALID_ARG, __FUNCTION__);
goto error;
}
diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c
index cc37d05..2e0d377 100644
--- a/src/libxl/libxl_driver.c
+++ b/src/libxl/libxl_driver.c
@@ -2327,18 +2327,12 @@ libxlDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags)
virDomainObjPtr vm;
virDomainDefPtr def;
int ret = -1;
+ bool active;
virCheckFlags(VIR_DOMAIN_VCPU_LIVE |
VIR_DOMAIN_VCPU_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
- /* Exactly one of LIVE or CONFIG must be set. */
- if (!(flags & VIR_DOMAIN_VCPU_LIVE) == !(flags & VIR_DOMAIN_VCPU_CONFIG)) {
- libxlError(VIR_ERR_INVALID_ARG,
- _("invalid flag combination: (0x%x)"), flags);
- return -1;
- }
-
libxlDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
libxlDriverUnlock(driver);
@@ -2348,14 +2342,33 @@ libxlDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags)
goto cleanup;
}
+ active = virDomainObjIsActive(vm);
+
+ if ((flags & (VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG)) == 0) {
+ if (active)
+ flags |= VIR_DOMAIN_VCPU_LIVE;
+ else
+ flags |= VIR_DOMAIN_VCPU_CONFIG;
+ }
+ if ((flags & VIR_DOMAIN_VCPU_LIVE) && (flags & VIR_DOMAIN_VCPU_CONFIG)) {
+ libxlError(VIR_ERR_INVALID_ARG,
+ _("invalid flag combination: (0x%x)"), flags);
+ return -1;
+ }
+
if (flags & VIR_DOMAIN_VCPU_LIVE) {
- if (!virDomainObjIsActive(vm)) {
+ if (!active) {
libxlError(VIR_ERR_OPERATION_INVALID,
"%s", _("Domain is not running"));
goto cleanup;
}
def = vm->def;
} else {
+ if (!vm->persistent) {
+ libxlError(VIR_ERR_OPERATION_INVALID,
+ "%s", _("domain is transient"));
+ goto cleanup;
+ }
def = vm->newDef ? vm->newDef : vm->def;
}
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 1a3fbfb..536cd5c 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3408,18 +3408,12 @@ qemudDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags)
virDomainObjPtr vm;
virDomainDefPtr def;
int ret = -1;
+ bool active;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
- /* Exactly one of LIVE or CONFIG must be set. */
- if (!(flags & VIR_DOMAIN_AFFECT_LIVE) == !(flags & VIR_DOMAIN_AFFECT_CONFIG)) {
- qemuReportError(VIR_ERR_INVALID_ARG,
- _("invalid flag combination: (0x%x)"), flags);
- return -1;
- }
-
qemuDriverLock(driver);
vm = virDomainFindByUUID(&driver->domains, dom->uuid);
qemuDriverUnlock(driver);
@@ -3432,14 +3426,33 @@ qemudDomainGetVcpusFlags(virDomainPtr dom, unsigned int flags)
goto cleanup;
}
+ active = virDomainObjIsActive(vm);
+
+ if ((flags & (VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG)) == 0) {
+ if (active)
+ flags |= VIR_DOMAIN_VCPU_LIVE;
+ else
+ flags |= VIR_DOMAIN_VCPU_CONFIG;
+ }
+ if ((flags & VIR_DOMAIN_AFFECT_LIVE) && (flags & VIR_DOMAIN_AFFECT_CONFIG)) {
+ qemuReportError(VIR_ERR_INVALID_ARG,
+ _("invalid flag combination: (0x%x)"), flags);
+ return -1;
+ }
+
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
- if (!virDomainObjIsActive(vm)) {
+ if (!active) {
qemuReportError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain not active"));
goto cleanup;
}
def = vm->def;
} else {
+ if (!vm->persistent) {
+ qemuReportError(VIR_ERR_OPERATION_INVALID, "%s",
+ _("domain is transient"));
+ goto cleanup;
+ }
def = vm->newDef ? vm->newDef : vm->def;
}
diff --git a/src/test/test_driver.c b/src/test/test_driver.c
index 064a1cd..28da8e7 100644
--- a/src/test/test_driver.c
+++ b/src/test/test_driver.c
@@ -2067,18 +2067,12 @@ testDomainGetVcpusFlags(virDomainPtr domain, unsigned int flags)
virDomainObjPtr vm;
virDomainDefPtr def;
int ret = -1;
+ bool active;
virCheckFlags(VIR_DOMAIN_AFFECT_LIVE |
VIR_DOMAIN_AFFECT_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
- /* Exactly one of LIVE or CONFIG must be set. */
- if (!(flags & VIR_DOMAIN_AFFECT_LIVE) == !(flags & VIR_DOMAIN_AFFECT_CONFIG)) {
- testError(VIR_ERR_INVALID_ARG,
- _("invalid flag combination: (0x%x)"), flags);
- return -1;
- }
-
testDriverLock(privconn);
vm = virDomainFindByUUID(&privconn->domains, domain->uuid);
testDriverUnlock(privconn);
@@ -2091,14 +2085,35 @@ testDomainGetVcpusFlags(virDomainPtr domain, unsigned int flags)
goto cleanup;
}
+ active = virDomainObjIsActive(vm);
+
+ if ((flags & (VIR_DOMAIN_VCPU_LIVE | VIR_DOMAIN_VCPU_CONFIG)) == 0) {
+ if (active)
+ flags |= VIR_DOMAIN_VCPU_LIVE;
+ else
+ flags |= VIR_DOMAIN_VCPU_CONFIG;
+ }
+ if ((flags & VIR_DOMAIN_AFFECT_LIVE) && (flags & VIR_DOMAIN_AFFECT_CONFIG)) {
+ testError(VIR_ERR_INVALID_ARG,
+ _("invalid flag combination: (0x%x)"), flags);
+ return -1;
+ }
+
+
+
if (flags & VIR_DOMAIN_AFFECT_LIVE) {
- if (!virDomainObjIsActive(vm)) {
+ if (!active) {
testError(VIR_ERR_OPERATION_INVALID, "%s",
_("domain not active"));
goto cleanup;
}
def = vm->def;
} else {
+ if (!vm->persistent) {
+ testError(VIR_ERR_OPERATION_INVALID, "%s",
+ _("domain is transient"));
+ goto cleanup;
+ }
def = vm->newDef ? vm->newDef : vm->def;
}
diff --git a/src/xen/xen_driver.c b/src/xen/xen_driver.c
index dd1ba6c..0f8b660 100644
--- a/src/xen/xen_driver.c
+++ b/src/xen/xen_driver.c
@@ -1201,13 +1201,6 @@ xenUnifiedDomainGetVcpusFlags (virDomainPtr dom, unsigned int flags)
VIR_DOMAIN_VCPU_CONFIG |
VIR_DOMAIN_VCPU_MAXIMUM, -1);
- /* Exactly one of LIVE or CONFIG must be set. */
- if (!(flags & VIR_DOMAIN_VCPU_LIVE) == !(flags & VIR_DOMAIN_VCPU_CONFIG)) {
- xenUnifiedError(VIR_ERR_INVALID_ARG,
- _("invalid flag combination: (0x%x)"), flags);
- return -1;
- }
-
if (priv->opened[XEN_UNIFIED_XEND_OFFSET]) {
ret = xenDaemonDomainGetVcpusFlags(dom, flags);
if (ret != -2)
--
1.7.4.4
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