This patch introduces a new libvirt API (virDomainPinVcpuFlags)
Signed-off-by: Taku Izumi<izumi.taku@xxxxxxxxxxxxxx>
---
include/libvirt/libvirt.h.in | 5 +++
src/driver.h | 7 ++++
src/libvirt.c | 70 +++++++++++++++++++++++++++++++++++++++++++
src/libvirt_public.syms | 1
src/lxc/lxc_driver.c | 1
src/openvz/openvz_driver.c | 1
src/phyp/phyp_driver.c | 1
src/qemu/qemu_driver.c | 1
src/remote/remote_driver.c | 1
src/test/test_driver.c | 1
src/uml/uml_driver.c | 1
src/vbox/vbox_tmpl.c | 1
src/vmware/vmware_driver.c | 1
src/xen/xen_driver.c | 1
src/xenapi/xenapi_driver.c | 1
15 files changed, 94 insertions(+)
Index: libvirt/include/libvirt/libvirt.h.in
===================================================================
--- libvirt.orig/include/libvirt/libvirt.h.in
+++ libvirt/include/libvirt/libvirt.h.in
@@ -1036,6 +1036,11 @@ int virDomainPinVcpu
unsigned int vcpu,
unsigned char *cpumap,
int maplen);
+int virDomainPinVcpuFlags (virDomainPtr domain,
+ unsigned int vcpu,
+ unsigned char *cpumap,
+ int maplen,
+ unsigned int flags);
/**
* VIR_USE_CPU:
Index: libvirt/src/driver.h
===================================================================
--- libvirt.orig/src/driver.h
+++ libvirt/src/driver.h
@@ -220,6 +220,12 @@ typedef int
unsigned char *cpumap,
int maplen);
typedef int
+ (*virDrvDomainPinVcpuFlags) (virDomainPtr domain,
+ unsigned int vcpu,
+ unsigned char *cpumap,
+ int maplen,
+ unsigned int flags);
+typedef int
(*virDrvDomainGetVcpus) (virDomainPtr domain,
virVcpuInfoPtr info,
int maxinfo,
@@ -570,6 +576,7 @@ struct _virDriver {
virDrvDomainSetVcpusFlags domainSetVcpusFlags;
virDrvDomainGetVcpusFlags domainGetVcpusFlags;
virDrvDomainPinVcpu domainPinVcpu;
+ virDrvDomainPinVcpuFlags domainPinVcpuFlags;
virDrvDomainGetVcpus domainGetVcpus;
virDrvDomainGetMaxVcpus domainGetMaxVcpus;
virDrvDomainGetSecurityLabel domainGetSecurityLabel;
Index: libvirt/src/libvirt.c
===================================================================
--- libvirt.orig/src/libvirt.c
+++ libvirt/src/libvirt.c
@@ -5495,6 +5495,76 @@ error:
}
/**
+ * virDomainPinVcpuFlags:
+ * @domain: pointer to domain object, or NULL for Domain0
+ * @vcpu: virtual CPU number
+ * @cpumap: pointer to a bit map of real CPUs (in 8-bit bytes) (IN)
+ * Each bit set to 1 means that correspoinding CPU is usable.
+ * Bytes are stored in little-endian order: CPU0-7, 8-15...
+ * In each byte, lowest CPU number is least significant bit.
+ * @maplen: number of bytes in cpumap, from 1 up to size of CPU map in
+ * underlying virtualization system (Xen...).
+ * If maplen< size, missing bytes are set to zero.
+ * If maplen< size, failure code is returned.
+ * @flags: an OR'ed set of virDomainVcpuFlags
+ *
+ * Dynamically change the real CPUs which can be allocated to a virtual CPU.
+ * This function requires privileged access to the hypervisor.
+ *
+ * @flags must include VIR_DOMAIN_VCPU_LIVE to affect a running domain
+ * (which may fail if domain is not active), or VIR_DOMAIN_MEM_CONFIG to
+ * affect the next boot via the XML description of the domain.
+ * Both flags may be set.
+ *
+ * Returns 0 in case of success, -1 in case of failure.
+ *
+ */
+int
+virDomainPinVcpuFlags(virDomainPtr domain, unsigned int vcpu,
+ unsigned char *cpumap, int maplen, unsigned int flags)
+{
+ virConnectPtr conn;
+
+ VIR_DOMAIN_DEBUG(domain, "vcpu=%u, cpumap=%p, maplen=%d flags=%u",
+ vcpu, cpumap, maplen, flags);
+
+ virResetLastError();
+
+ if (!VIR_IS_CONNECTED_DOMAIN(domain)) {
+ virLibDomainError(VIR_ERR_INVALID_DOMAIN, __FUNCTION__);
+ virDispatchError(NULL);
+ return -1;
+ }
+
+ if (domain->conn->flags& VIR_CONNECT_RO) {
+ virLibDomainError(VIR_ERR_OPERATION_DENIED, __FUNCTION__);
+ goto error;
+ }
+
+ if ((vcpu> 32000) || (cpumap == NULL) || (maplen< 1)) {
+ virLibDomainError(VIR_ERR_INVALID_ARG, __FUNCTION__);
+ goto error;
+ }
+
+ conn = domain->conn;
+
+ if (conn->driver->domainPinVcpuFlags) {
+ int ret;
+ ret = conn->driver->domainPinVcpuFlags (domain, vcpu, cpumap, maplen, flags);
+ if (ret< 0)
+ goto error;
+ return ret;
+ }
+
+ virLibConnError(VIR_ERR_NO_SUPPORT, __FUNCTION__);
+
+error:
+ virDispatchError(domain->conn);
+ return -1;
+
+}
+
+/**
* virDomainGetVcpus:
* @domain: pointer to domain object, or NULL for Domain0
* @info: pointer to an array of virVcpuInfo structures (OUT)
Index: libvirt/src/libvirt_public.syms
===================================================================
--- libvirt.orig/src/libvirt_public.syms
+++ libvirt/src/libvirt_public.syms
@@ -434,6 +434,7 @@ LIBVIRT_0.9.0 {
virEventRunDefaultImpl;
virStorageVolDownload;
virStorageVolUpload;
+ virDomainPinVcpuFlags;
} LIBVIRT_0.8.8;
# .... define new API here using predicted next version number ....
Index: libvirt/src/lxc/lxc_driver.c
===================================================================
--- libvirt.orig/src/lxc/lxc_driver.c
+++ libvirt/src/lxc/lxc_driver.c
@@ -2837,6 +2837,7 @@ static virDriver lxcDriver = {
NULL, /* domainSetVcpusFlags */
NULL, /* domainGetVcpusFlags */
NULL, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
NULL, /* domainGetVcpus */
NULL, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */
Index: libvirt/src/openvz/openvz_driver.c
===================================================================
--- libvirt.orig/src/openvz/openvz_driver.c
+++ libvirt/src/openvz/openvz_driver.c
@@ -1585,6 +1585,7 @@ static virDriver openvzDriver = {
openvzDomainSetVcpusFlags, /* domainSetVcpusFlags */
openvzDomainGetVcpusFlags, /* domainGetVcpusFlags */
NULL, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
NULL, /* domainGetVcpus */
openvzDomainGetMaxVcpus, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */
Index: libvirt/src/phyp/phyp_driver.c
===================================================================
--- libvirt.orig/src/phyp/phyp_driver.c
+++ libvirt/src/phyp/phyp_driver.c
@@ -3986,6 +3986,7 @@ static virDriver phypDriver = {
phypDomainSetVcpusFlags, /* domainSetVcpusFlags */
phypDomainGetVcpusFlags, /* domainGetVcpusFlags */
NULL, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
NULL, /* domainGetVcpus */
phypGetLparCPUMAX, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */
Index: libvirt/src/qemu/qemu_driver.c
===================================================================
--- libvirt.orig/src/qemu/qemu_driver.c
+++ libvirt/src/qemu/qemu_driver.c
@@ -6854,6 +6854,7 @@ static virDriver qemuDriver = {
qemudDomainSetVcpusFlags, /* domainSetVcpusFlags */
qemudDomainGetVcpusFlags, /* domainGetVcpusFlags */
qemudDomainPinVcpu, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
qemudDomainGetVcpus, /* domainGetVcpus */
qemudDomainGetMaxVcpus, /* domainGetMaxVcpus */
qemudDomainGetSecurityLabel, /* domainGetSecurityLabel */
Index: libvirt/src/remote/remote_driver.c
===================================================================
--- libvirt.orig/src/remote/remote_driver.c
+++ libvirt/src/remote/remote_driver.c
@@ -11227,6 +11227,7 @@ static virDriver remote_driver = {
remoteDomainSetVcpusFlags, /* domainSetVcpusFlags */
remoteDomainGetVcpusFlags, /* domainGetVcpusFlags */
remoteDomainPinVcpu, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
remoteDomainGetVcpus, /* domainGetVcpus */
remoteDomainGetMaxVcpus, /* domainGetMaxVcpus */
remoteDomainGetSecurityLabel, /* domainGetSecurityLabel */
Index: libvirt/src/test/test_driver.c
===================================================================
--- libvirt.orig/src/test/test_driver.c
+++ libvirt/src/test/test_driver.c
@@ -5378,6 +5378,7 @@ static virDriver testDriver = {
testDomainSetVcpusFlags, /* domainSetVcpusFlags */
testDomainGetVcpusFlags, /* domainGetVcpusFlags */
testDomainPinVcpu, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
testDomainGetVcpus, /* domainGetVcpus */
testDomainGetMaxVcpus, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */
Index: libvirt/src/uml/uml_driver.c
===================================================================
--- libvirt.orig/src/uml/uml_driver.c
+++ libvirt/src/uml/uml_driver.c
@@ -2180,6 +2180,7 @@ static virDriver umlDriver = {
NULL, /* domainSetVcpusFlags */
NULL, /* domainGetVcpusFlags */
NULL, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
NULL, /* domainGetVcpus */
NULL, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */
Index: libvirt/src/vbox/vbox_tmpl.c
===================================================================
--- libvirt.orig/src/vbox/vbox_tmpl.c
+++ libvirt/src/vbox/vbox_tmpl.c
@@ -8568,6 +8568,7 @@ virDriver NAME(Driver) = {
vboxDomainSetVcpusFlags, /* domainSetVcpusFlags */
vboxDomainGetVcpusFlags, /* domainGetVcpusFlags */
NULL, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
NULL, /* domainGetVcpus */
vboxDomainGetMaxVcpus, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */
Index: libvirt/src/vmware/vmware_driver.c
===================================================================
--- libvirt.orig/src/vmware/vmware_driver.c
+++ libvirt/src/vmware/vmware_driver.c
@@ -938,6 +938,7 @@ static virDriver vmwareDriver = {
NULL, /* domainSetVcpusFlags */
NULL, /* domainGetVcpusFlags */
NULL, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
NULL, /* domainGetVcpus */
NULL, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */
Index: libvirt/src/xen/xen_driver.c
===================================================================
--- libvirt.orig/src/xen/xen_driver.c
+++ libvirt/src/xen/xen_driver.c
@@ -2072,6 +2072,7 @@ static virDriver xenUnifiedDriver = {
xenUnifiedDomainSetVcpusFlags, /* domainSetVcpusFlags */
xenUnifiedDomainGetVcpusFlags, /* domainGetVcpusFlags */
xenUnifiedDomainPinVcpu, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
xenUnifiedDomainGetVcpus, /* domainGetVcpus */
xenUnifiedDomainGetMaxVcpus, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */
Index: libvirt/src/xenapi/xenapi_driver.c
===================================================================
--- libvirt.orig/src/xenapi/xenapi_driver.c
+++ libvirt/src/xenapi/xenapi_driver.c
@@ -1816,6 +1816,7 @@ static virDriver xenapiDriver = {
xenapiDomainSetVcpusFlags, /* domainSetVcpusFlags */
xenapiDomainGetVcpusFlags, /* domainGetVcpusFlags */
xenapiDomainPinVcpu, /* domainPinVcpu */
+ NULL, /* domainPinVcpuFlags */
xenapiDomainGetVcpus, /* domainGetVcpus */
xenapiDomainGetMaxVcpus, /* domainGetMaxVcpus */
NULL, /* domainGetSecurityLabel */