int p2m_init(struct domain *d)
{
struct p2m_domain *p2m = &d->arch.p2m;
int rc = 0;
spin_lock_init(&p2m->lock);
INIT_PAGE_LIST_HEAD(&p2m->pages);
spin_lock(&p2m->lock);
p2m->vmid = INVALID_VMID;
rc = p2m_alloc_vmid(d);
if ( rc != 0 )
goto err;
d->arch.vttbr = 0;
p2m->first_level = NULL;
p2m->max_mapped_gfn = 0;
p2m->lowest_mapped_gfn = ULONG_MAX;
err:
spin_unlock(&p2m->lock);
return rc;
}
/* Init the datastructures for later use by the p2m code */
static int p2m_initialise(struct domain *d, struct p2m_domain *p2m)
{
int ret = 0;
mm_rwlock_init(&p2m->lock);
mm_lock_init(&p2m->pod.lock);
INIT_LIST_HEAD(&p2m->np2m_list);
INIT_PAGE_LIST_HEAD(&p2m->pages);
INIT_PAGE_LIST_HEAD(&p2m->pod.super);
INIT_PAGE_LIST_HEAD(&p2m->pod.single);
p2m->domain = d;
p2m->default_access = p2m_access_rwx;
p2m->np2m_base = P2M_BASE_EADDR;
if ( hap_enabled(d) && cpu_has_vmx )
ret = ept_p2m_init(p2m);
else
p2m_pt_init(p2m);
return ret;
}
int p2m_init(struct domain *d)
{
struct p2m_domain *p2m = &d->arch.p2m;
spin_lock_init(&p2m->lock);
INIT_PAGE_LIST_HEAD(&p2m->pages);
/* XXX allocate properly */
/* Zero is reserved */
p2m->vmid = d->domain_id + 1;
d->arch.vttbr = 0;
p2m->first_level = NULL;
return 0;
}
struct domain *domain_create(
domid_t domid, unsigned int domcr_flags, uint32_t ssidref)
{
struct domain *d, **pd;
enum { INIT_xsm = 1u<<0, INIT_watchdog = 1u<<1, INIT_rangeset = 1u<<2,
INIT_evtchn = 1u<<3, INIT_gnttab = 1u<<4, INIT_arch = 1u<<5 };
int err, init_status = 0;
int poolid = CPUPOOLID_NONE;
if ( (d = alloc_domain_struct()) == NULL )
return ERR_PTR(-ENOMEM);
d->domain_id = domid;
lock_profile_register_struct(LOCKPROF_TYPE_PERDOM, d, domid, "Domain");
if ( (err = xsm_alloc_security_domain(d)) != 0 )
goto fail;
init_status |= INIT_xsm;
watchdog_domain_init(d);
init_status |= INIT_watchdog;
atomic_set(&d->refcnt, 1);
spin_lock_init_prof(d, domain_lock);
spin_lock_init_prof(d, page_alloc_lock);
spin_lock_init(&d->hypercall_deadlock_mutex);
INIT_PAGE_LIST_HEAD(&d->page_list);
INIT_PAGE_LIST_HEAD(&d->xenpage_list);
spin_lock_init(&d->node_affinity_lock);
d->node_affinity = NODE_MASK_ALL;
d->auto_node_affinity = 1;
spin_lock_init(&d->shutdown_lock);
d->shutdown_code = -1;
err = -ENOMEM;
if ( !zalloc_cpumask_var(&d->domain_dirty_cpumask) )
goto fail;
if ( domcr_flags & DOMCRF_hvm )
d->is_hvm = 1;
if ( domid == 0 )
{
d->is_pinned = opt_dom0_vcpus_pin;
d->disable_migrate = 1;
}
rangeset_domain_initialise(d);
init_status |= INIT_rangeset;
d->iomem_caps = rangeset_new(d, "I/O Memory", RANGESETF_prettyprint_hex);
d->irq_caps = rangeset_new(d, "Interrupts", 0);
if ( (d->iomem_caps == NULL) || (d->irq_caps == NULL) )
goto fail;
if ( domcr_flags & DOMCRF_dummy )
return d;
if ( !is_idle_domain(d) )
{
if ( (err = xsm_domain_create(XSM_HOOK, d, ssidref)) != 0 )
goto fail;
d->is_paused_by_controller = 1;
atomic_inc(&d->pause_count);
if ( domid )
d->nr_pirqs = nr_static_irqs + extra_domU_irqs;
else
d->nr_pirqs = nr_static_irqs + extra_dom0_irqs;
if ( d->nr_pirqs > nr_irqs )
d->nr_pirqs = nr_irqs;
radix_tree_init(&d->pirq_tree);
if ( (err = evtchn_init(d)) != 0 )
goto fail;
init_status |= INIT_evtchn;
if ( (err = grant_table_create(d)) != 0 )
goto fail;
init_status |= INIT_gnttab;
poolid = 0;
err = -ENOMEM;
d->mem_event = xzalloc(struct mem_event_per_domain);
if ( !d->mem_event )
goto fail;
}
if ( (err = arch_domain_create(d, domcr_flags)) != 0 )
goto fail;
init_status |= INIT_arch;
if ( (err = cpupool_add_domain(d, poolid)) != 0 )
goto fail;
if ( (err = sched_init_domain(d)) != 0 )
goto fail;
if ( !is_idle_domain(d) )
{
spin_lock(&domlist_update_lock);
pd = &domain_list; /* NB. domain_list maintained in order of domid. */
for ( pd = &domain_list; *pd != NULL; pd = &(*pd)->next_in_list )
if ( (*pd)->domain_id > d->domain_id )
break;
d->next_in_list = *pd;
d->next_in_hashbucket = domain_hash[DOMAIN_HASH(domid)];
rcu_assign_pointer(*pd, d);
rcu_assign_pointer(domain_hash[DOMAIN_HASH(domid)], d);
spin_unlock(&domlist_update_lock);
}
return d;
fail:
d->is_dying = DOMDYING_dead;
atomic_set(&d->refcnt, DOMAIN_DESTROYED);
xfree(d->mem_event);
if ( init_status & INIT_arch )
arch_domain_destroy(d);
if ( init_status & INIT_gnttab )
grant_table_destroy(d);
if ( init_status & INIT_evtchn )
{
evtchn_destroy(d);
evtchn_destroy_final(d);
radix_tree_destroy(&d->pirq_tree, free_pirq_struct);
}
if ( init_status & INIT_rangeset )
rangeset_domain_destroy(d);
if ( init_status & INIT_watchdog )
watchdog_domain_destroy(d);
if ( init_status & INIT_xsm )
xsm_free_security_domain(d);
free_cpumask_var(d->domain_dirty_cpumask);
free_domain_struct(d);
return ERR_PTR(err);
}
