int xc_cpupool_destroy(xc_interface *xch, uint32_t poolid) { DECLARE_SYSCTL; sysctl.cmd = XEN_SYSCTL_cpupool_op; sysctl.u.cpupool_op.op = XEN_SYSCTL_CPUPOOL_OP_DESTROY; sysctl.u.cpupool_op.cpupool_id = poolid; return do_sysctl_save(xch, &sysctl); }
xc_cpupoolinfo_t *xc_cpupool_getinfo(xc_interface *xch, uint32_t poolid) { int err = 0; xc_cpupoolinfo_t *info = NULL; int local_size; DECLARE_SYSCTL; DECLARE_HYPERCALL_BUFFER(uint8_t, local); local_size = xc_get_cpumap_size(xch); if (local_size <= 0) { PERROR("Could not get number of cpus"); return NULL; } local = xc_hypercall_buffer_alloc(xch, local, local_size); if ( local == NULL ) { PERROR("Could not allocate locked memory for xc_cpupool_getinfo"); return NULL; } sysctl.cmd = XEN_SYSCTL_cpupool_op; sysctl.u.cpupool_op.op = XEN_SYSCTL_CPUPOOL_OP_INFO; sysctl.u.cpupool_op.cpupool_id = poolid; set_xen_guest_handle(sysctl.u.cpupool_op.cpumap.bitmap, local); sysctl.u.cpupool_op.cpumap.nr_bits = local_size * 8; err = do_sysctl_save(xch, &sysctl); if ( err < 0 ) goto out; info = calloc(1, sizeof(xc_cpupoolinfo_t)); if ( !info ) goto out; info->cpumap = xc_cpumap_alloc(xch); if (!info->cpumap) { free(info); info = NULL; goto out; } info->cpupool_id = sysctl.u.cpupool_op.cpupool_id; info->sched_id = sysctl.u.cpupool_op.sched_id; info->n_dom = sysctl.u.cpupool_op.n_dom; memcpy(info->cpumap, local, local_size); out: xc_hypercall_buffer_free(xch, local); return info; }
int xc_cpupool_movedomain(xc_interface *xch, uint32_t poolid, uint32_t domid) { DECLARE_SYSCTL; sysctl.cmd = XEN_SYSCTL_cpupool_op; sysctl.u.cpupool_op.op = XEN_SYSCTL_CPUPOOL_OP_MOVEDOMAIN; sysctl.u.cpupool_op.cpupool_id = poolid; sysctl.u.cpupool_op.domid = domid; return do_sysctl_save(xch, &sysctl); }
int xc_cpupool_removecpu(xc_interface *xch, uint32_t poolid, int cpu) { DECLARE_SYSCTL; sysctl.cmd = XEN_SYSCTL_cpupool_op; sysctl.u.cpupool_op.op = XEN_SYSCTL_CPUPOOL_OP_RMCPU; sysctl.u.cpupool_op.cpupool_id = poolid; sysctl.u.cpupool_op.cpu = (cpu < 0) ? XEN_SYSCTL_CPUPOOL_PAR_ANY : cpu; return do_sysctl_save(xch, &sysctl); }
int xc_cpupool_create(xc_interface *xch, uint32_t *ppoolid, uint32_t sched_id) { int err; DECLARE_SYSCTL; sysctl.cmd = XEN_SYSCTL_cpupool_op; sysctl.u.cpupool_op.op = XEN_SYSCTL_CPUPOOL_OP_CREATE; sysctl.u.cpupool_op.cpupool_id = (*ppoolid == 0) ? XEN_SYSCTL_CPUPOOL_PAR_ANY : *ppoolid; sysctl.u.cpupool_op.sched_id = sched_id; if ( (err = do_sysctl_save(xch, &sysctl)) != 0 ) return err; *ppoolid = sysctl.u.cpupool_op.cpupool_id; return 0; }
int xc_cpupool_removecpu(xc_interface *xch, uint32_t poolid, int cpu) { unsigned retries; int err = 0; DECLARE_SYSCTL; sysctl.cmd = XEN_SYSCTL_cpupool_op; sysctl.u.cpupool_op.op = XEN_SYSCTL_CPUPOOL_OP_RMCPU; sysctl.u.cpupool_op.cpupool_id = poolid; sysctl.u.cpupool_op.cpu = (cpu < 0) ? XEN_SYSCTL_CPUPOOL_PAR_ANY : cpu; for ( retries = 0; retries < NUM_RMCPU_BUSY_RETRIES; retries++ ) { err = do_sysctl_save(xch, &sysctl); if ( err == 0 || errno != EADDRINUSE ) break; } return err; }
xc_cpumap_t xc_cpupool_freeinfo(xc_interface *xch) { int err = -1; xc_cpumap_t cpumap = NULL; int mapsize; DECLARE_SYSCTL; DECLARE_HYPERCALL_BUFFER(uint8_t, local); mapsize = xc_get_cpumap_size(xch); if (mapsize <= 0) return NULL; local = xc_hypercall_buffer_alloc(xch, local, mapsize); if ( local == NULL ) { PERROR("Could not allocate locked memory for xc_cpupool_freeinfo"); return NULL; } sysctl.cmd = XEN_SYSCTL_cpupool_op; sysctl.u.cpupool_op.op = XEN_SYSCTL_CPUPOOL_OP_FREEINFO; set_xen_guest_handle(sysctl.u.cpupool_op.cpumap.bitmap, local); sysctl.u.cpupool_op.cpumap.nr_bits = mapsize * 8; err = do_sysctl_save(xch, &sysctl); if ( err < 0 ) goto out; cpumap = xc_cpumap_alloc(xch); if (cpumap == NULL) goto out; memcpy(cpumap, local, mapsize); out: xc_hypercall_buffer_free(xch, local); return cpumap; }