search for: xen_domctl_max_vcpus

...define XEN_DOMCTL_getvcpuaffinity 25 +struct xen_domctl_vcpuaffinity { + uint32_t vcpu; /* IN */ + struct xenctl_cpumap cpumap; /* IN/OUT */ +}; +typedef struct xen_domctl_vcpuaffinity xen_domctl_vcpuaffinity_t; +DEFINE_XEN_GUEST_HANDLE(xen_domctl_vcpuaffinity_t); + + +#define XEN_DOMCTL_max_vcpus 15 +struct xen_domctl_max_vcpus { + uint32_t max; /* maximum number of vcpus */ +}; +typedef struct xen_domctl_max_vcpus xen_domctl_max_vcpus_t; +DEFINE_XEN_GUEST_HANDLE(xen_domctl_max_vcpus_t); + + +#define XEN_DOMCTL_scheduler_op 16 +/* Scheduler types. */ +#define XEN_S...

This caused particularly poor performance when booting a server in uniprocessor mode for debugging reasons, and had 4 dom0 vcpus competing for 1pcpus worth of time. -- Andrew Cooper - Dom0 Kernel Engineer, Citrix XenServer T: +44 (0)1223 225 900, http://www.citrix.com _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel

...ctl->u._union._field, \ + sizeof(domctl->u._union._field)) +#define PRE_XEN_DOMCTL_READ(_domctl, _field) \ + __PRE_XEN_DOMCTL_READ(_domctl, _domctl, _field) + + switch (domctl->cmd) { + case XEN_DOMCTL_destroydomain: + case XEN_DOMCTL_pausedomain: + case XEN_DOMCTL_max_vcpus: + case XEN_DOMCTL_get_address_size: + case XEN_DOMCTL_gettscinfo: + case XEN_DOMCTL_getdomaininfo: + case XEN_DOMCTL_unpausedomain: + /* No input fields. */ + break; + + case XEN_DOMCTL_createdomain: + PRE_XEN_DOMCTL_READ(createdomain, ssidref); + PRE_XEN_DOMCTL_READ(...

These two patches were originally part of the XSM series that I have posted, and remain prerequisites for that series. However, they are independent of the XSM changes and are a useful simplification regardless of the use of XSM. The Acked-bys on these patches were provided before rebasing them over the copyback changes in 26268:1b72138bddda, which had minor conflicts that I resolved. [PATCH