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* include/libvirt/libvirt.h include/libvirt/libvirt.h.in
src/libvirt.c src/libvirt_sym.version src/xen_internal.c src/xen_internal.h src/xend_internal.c src/xend_internal.h: applied patch from Michel Ponceau and Philippe Berthault for virtual CPU and affinity support plus a bit of cleanup. Daniel
This commit is contained in:
Daniel Veillard
@@ -290,6 +290,107 @@ int virConnectListDefinedDomains(virConnectPtr conn,
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int maxnames);
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int virDomainCreate (virDomainPtr domain);
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/**
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* virVcpuInfo: structure for information about a virtual CPU in a domain.
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*/
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typedef enum {
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VIR_VCPU_OFFLINE = 0, /* the virtual CPU is offline */
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VIR_VCPU_RUNNING = 1, /* the virtual CPU is running */
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VIR_VCPU_BLOCKED = 2, /* the virtual CPU is blocked on resource */
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} virVcpuState;
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typedef struct _virVcpuInfo virVcpuInfo;
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struct _virVcpuInfo {
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unsigned int number; /* virtual CPU number */
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int state; /* value from virVcpuState */
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unsigned long long cpuTime; /* CPU time used, in nanoseconds */
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int cpu; /* real CPU number, or -1 if offline */
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};
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typedef virVcpuInfo *virVcpuInfoPtr;
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int virDomainSetVcpus (virDomainPtr domain,
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unsigned int nvcpus);
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int virDomainPinVcpu (virDomainPtr domain,
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unsigned int vcpu,
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unsigned char *cpumap,
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int maplen);
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/**
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* VIR_USE_CPU:
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* @cpumap: pointer to a bit map of real CPUs (in 8-bit bytes) (IN/OUT)
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* @cpu: the physical CPU number
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*
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* This macro is to be used in conjonction with virDomainPinVcpu() API.
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* USE_CPU macro set the bit (CPU usable) of the related cpu in cpumap.
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*/
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#define VIR_USE_CPU(cpumap,cpu) (cpumap[(cpu)/8] |= (1<<((cpu)%8)))
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/**
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* VIR_UNUSE_CPU:
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* @cpumap: pointer to a bit map of real CPUs (in 8-bit bytes) (IN/OUT)
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* @cpu: the physical CPU number
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*
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* This macro is to be used in conjonction with virDomainPinVcpu() API.
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* USE_CPU macro reset the bit (CPU not usable) of the related cpu in cpumap.
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*/
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#define VIR_UNUSE_CPU(cpumap,cpu) (cpumap[(cpu)/8] &= ~(1<<((cpu)%8)))
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int virDomainGetVcpus (virDomainPtr domain,
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virVcpuInfoPtr info,
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int maxinfo,
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unsigned char *cpumaps,
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int maplen);
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/**
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* VIR_CPU_USABLE:
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* @cpumaps: pointer to an array of cpumap (in 8-bit bytes) (IN)
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* @maplen: the length (in bytes) of one cpumap
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* @vcpu: the virtual CPU number
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* @cpu: the physical CPU number
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*
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* This macro is to be used in conjonction with virDomainGetVcpus() API.
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* VIR_CPU_USABLE macro returns a non zero value (true) if the cpu
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* is usable by the vcpu, and 0 otherwise.
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*/
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#define VIR_CPU_USABLE(cpumaps,maplen,vcpu,cpu) \
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(cpumaps[((vcpu)*(maplen))+((cpu)/8)] & (1<<((cpu)%8)))
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/**
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* VIR_COPY_CPUMAP:
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* @cpumaps: pointer to an array of cpumap (in 8-bit bytes) (IN)
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* @maplen: the length (in bytes) of one cpumap
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* @vcpu: the virtual CPU number
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* @cpumap: pointer to a cpumap (in 8-bit bytes) (OUT)
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* This cpumap must be previously allocated by the caller
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* (ie: malloc(maplen))
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*
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* This macro is to be used in conjonction with virDomainGetVcpus() and
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* virDomainPinVcpu() APIs. VIR_COPY_CPUMAP macro extract the cpumap of
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* the specified vcpu from cpumaps array and copy it into cpumap to be used
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* later by virDomainPinVcpu() API.
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*/
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#define VIR_COPY_CPUMAP(cpumaps,maplen,vcpu,cpumap) \
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memcpy(cpumap, &(cpumaps[(vcpu)*(maplen)]), (maplen))
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/**
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* VIR_GET_CPUMAP:
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* @cpumaps: pointer to an array of cpumap (in 8-bit bytes) (IN)
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* @maplen: the length (in bytes) of one cpumap
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* @vcpu: the virtual CPU number
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*
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* This macro is to be used in conjonction with virDomainGetVcpus() and
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* virDomainPinVcpu() APIs. VIR_GET_CPUMAP macro returns a pointer to the
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* cpumap of the specified vcpu from cpumaps array.
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*/
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#define VIR_GET_CPUMAP(cpumaps,maplen,vcpu) &(cpumaps[(vcpu)*(maplen)])
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#ifdef __cplusplus
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}
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#endif
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@@ -290,6 +290,107 @@ int virConnectListDefinedDomains(virConnectPtr conn,
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int maxnames);
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int virDomainCreate (virDomainPtr domain);
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/**
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* virVcpuInfo: structure for information about a virtual CPU in a domain.
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*/
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typedef enum {
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VIR_VCPU_OFFLINE = 0, /* the virtual CPU is offline */
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VIR_VCPU_RUNNING = 1, /* the virtual CPU is running */
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VIR_VCPU_BLOCKED = 2, /* the virtual CPU is blocked on resource */
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} virVcpuState;
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typedef struct _virVcpuInfo virVcpuInfo;
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struct _virVcpuInfo {
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unsigned int number; /* virtual CPU number */
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int state; /* value from virVcpuState */
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unsigned long long cpuTime; /* CPU time used, in nanoseconds */
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int cpu; /* real CPU number, or -1 if offline */
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};
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typedef virVcpuInfo *virVcpuInfoPtr;
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int virDomainSetVcpus (virDomainPtr domain,
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unsigned int nvcpus);
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int virDomainPinVcpu (virDomainPtr domain,
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unsigned int vcpu,
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unsigned char *cpumap,
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int maplen);
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/**
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* VIR_USE_CPU:
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* @cpumap: pointer to a bit map of real CPUs (in 8-bit bytes) (IN/OUT)
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* @cpu: the physical CPU number
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*
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* This macro is to be used in conjonction with virDomainPinVcpu() API.
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* USE_CPU macro set the bit (CPU usable) of the related cpu in cpumap.
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*/
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#define VIR_USE_CPU(cpumap,cpu) (cpumap[(cpu)/8] |= (1<<((cpu)%8)))
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/**
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* VIR_UNUSE_CPU:
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* @cpumap: pointer to a bit map of real CPUs (in 8-bit bytes) (IN/OUT)
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* @cpu: the physical CPU number
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*
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* This macro is to be used in conjonction with virDomainPinVcpu() API.
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* USE_CPU macro reset the bit (CPU not usable) of the related cpu in cpumap.
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*/
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#define VIR_UNUSE_CPU(cpumap,cpu) (cpumap[(cpu)/8] &= ~(1<<((cpu)%8)))
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int virDomainGetVcpus (virDomainPtr domain,
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virVcpuInfoPtr info,
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int maxinfo,
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unsigned char *cpumaps,
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int maplen);
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/**
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* VIR_CPU_USABLE:
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* @cpumaps: pointer to an array of cpumap (in 8-bit bytes) (IN)
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* @maplen: the length (in bytes) of one cpumap
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* @vcpu: the virtual CPU number
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* @cpu: the physical CPU number
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*
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* This macro is to be used in conjonction with virDomainGetVcpus() API.
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* VIR_CPU_USABLE macro returns a non zero value (true) if the cpu
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* is usable by the vcpu, and 0 otherwise.
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*/
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#define VIR_CPU_USABLE(cpumaps,maplen,vcpu,cpu) \
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(cpumaps[((vcpu)*(maplen))+((cpu)/8)] & (1<<((cpu)%8)))
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/**
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* VIR_COPY_CPUMAP:
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* @cpumaps: pointer to an array of cpumap (in 8-bit bytes) (IN)
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* @maplen: the length (in bytes) of one cpumap
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* @vcpu: the virtual CPU number
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* @cpumap: pointer to a cpumap (in 8-bit bytes) (OUT)
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* This cpumap must be previously allocated by the caller
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* (ie: malloc(maplen))
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*
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* This macro is to be used in conjonction with virDomainGetVcpus() and
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* virDomainPinVcpu() APIs. VIR_COPY_CPUMAP macro extract the cpumap of
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* the specified vcpu from cpumaps array and copy it into cpumap to be used
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* later by virDomainPinVcpu() API.
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*/
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#define VIR_COPY_CPUMAP(cpumaps,maplen,vcpu,cpumap) \
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memcpy(cpumap, &(cpumaps[(vcpu)*(maplen)]), (maplen))
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/**
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* VIR_GET_CPUMAP:
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* @cpumaps: pointer to an array of cpumap (in 8-bit bytes) (IN)
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* @maplen: the length (in bytes) of one cpumap
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* @vcpu: the virtual CPU number
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*
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* This macro is to be used in conjonction with virDomainGetVcpus() and
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* virDomainPinVcpu() APIs. VIR_GET_CPUMAP macro returns a pointer to the
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* cpumap of the specified vcpu from cpumaps array.
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*/
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#define VIR_GET_CPUMAP(cpumaps,maplen,vcpu) &(cpumaps[(vcpu)*(maplen)])
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#ifdef __cplusplus
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}
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#endif
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