/* The enclosed test relies on the current thread being able to create two
* threads of unequal priority, both less than the caller's own priority. For
* this we need at least 3 priority levels, assuming that the current thread is
* running at the highest priority.
*/
static int
test_set_priority(struct env* env)
{
helper_thread_t thread1;
helper_thread_t thread2;
ZF_LOGD("test_set_priority starting\n");
create_helper_thread(env, &thread1);
set_helper_priority(&thread1, SCHED0005_HIGHEST_PRIO);
create_helper_thread(env, &thread2);
set_helper_priority(&thread2, SCHED0005_HIGHEST_PRIO - 1);
set_priority_step = 0;
ZF_LOGD(" ");
start_helper(env, &thread1, (helper_fn_t) set_priority_helper_1,
(seL4_Word) &thread1.thread.tcb.cptr,
(seL4_Word) &thread2.thread.tcb.cptr, 0, 0);
start_helper(env, &thread2, (helper_fn_t) set_priority_helper_2,
(seL4_Word) &thread1.thread.tcb.cptr,
(seL4_Word) &thread2.thread.tcb.cptr, 0, 0);
wait_for_helper(&thread1);
wait_for_helper(&thread2);
test_check(set_priority_step == 4);
ZF_LOGD("\n");
cleanup_helper(env, &thread1);
cleanup_helper(env, &thread2);
return sel4test_get_result();
}
static int
test_suspend(struct env* env)
{
helper_thread_t thread1;
helper_thread_t thread2a;
helper_thread_t thread2b;
ZF_LOGD("Starting test_suspend\n");
create_helper_thread(env, &thread1);
ZF_LOGD("Show me\n");
create_helper_thread(env, &thread2a);
create_helper_thread(env, &thread2b);
/* First set all the helper threads to have unique priorities
* and then start them in order of priority. This is so when
* the 'start_helper' function does an IPC to the helper
* thread, it doesn't allow one of the already started helper
* threads to run at all */
set_helper_priority(&thread1, 0);
set_helper_priority(&thread2a, 1);
set_helper_priority(&thread2b, 2);
start_helper(env, &thread1, (helper_fn_t) suspend_test_helper_1,
(seL4_Word) &thread1.thread.tcb.cptr,
(seL4_Word) &thread2a.thread.tcb.cptr,
(seL4_Word) &thread2b.thread.tcb.cptr, 0);
start_helper(env, &thread2a, (helper_fn_t) suspend_test_helper_2a,
(seL4_Word) &thread1.thread.tcb.cptr,
(seL4_Word) &thread2a.thread.tcb.cptr,
(seL4_Word) &thread2b.thread.tcb.cptr, 0);
start_helper(env, &thread2b, (helper_fn_t) suspend_test_helper_2b,
(seL4_Word) &thread1.thread.tcb.cptr,
(seL4_Word) &thread2a.thread.tcb.cptr,
(seL4_Word) &thread2b.thread.tcb.cptr, 0);
/* Now set their priorities to what we want */
set_helper_priority(&thread1, 100);
set_helper_priority(&thread2a, 101);
set_helper_priority(&thread2b, 101);
suspend_test_step = 0;
ZF_LOGD(" ");
wait_for_helper(&thread1);
wait_for_helper(&thread2b);
CHECK_STEP(suspend_test_step, 6);
ZF_LOGD("\n");
cleanup_helper(env, &thread1);
cleanup_helper(env, &thread2a);
cleanup_helper(env, &thread2b);
return sel4test_get_result();
}
static int
test_ipc_prios(struct env* env)
{
vka_t *vka = &env->vka;
helper_thread_t thread0;
helper_thread_t thread1;
helper_thread_t thread2;
helper_thread_t thread3;
int result = 0;
ipc_test_data_t data;
memset(&data, 0, sizeof(data));
data.ep0 = vka_alloc_endpoint_leaky(vka);
data.ep1 = vka_alloc_endpoint_leaky(vka);
data.ep2 = vka_alloc_endpoint_leaky(vka);
data.ep3 = vka_alloc_endpoint_leaky(vka);
create_helper_thread(env, &thread0);
set_helper_priority(&thread0, 0);
create_helper_thread(env, &thread1);
set_helper_priority(&thread1, 1);
create_helper_thread(env, &thread2);
set_helper_priority(&thread2, 2);
create_helper_thread(env, &thread3);
set_helper_priority(&thread3, 3);
data.tcb0 = thread0.thread.tcb.cptr;
data.tcb1 = thread1.thread.tcb.cptr;
data.tcb2 = thread2.thread.tcb.cptr;
data.tcb3 = thread3.thread.tcb.cptr;
ZF_LOGD(" ");
ipc_test_step = 0;
start_helper(env, &thread0, (helper_fn_t) ipc_test_helper_0, (seL4_Word) &data, 0, 0, 0);
start_helper(env, &thread1, (helper_fn_t) ipc_test_helper_1, (seL4_Word) &data, 0, 0, 0);
start_helper(env, &thread2, (helper_fn_t) ipc_test_helper_2, (seL4_Word) &data, 0, 0, 0);
start_helper(env, &thread3, (helper_fn_t) ipc_test_helper_3, (seL4_Word) &data, 0, 0, 0);
result |= (int)wait_for_helper(&thread1);
result |= (int)wait_for_helper(&thread3);
CHECK_STEP(ipc_test_step, 10);
ZF_LOGD("\n");
cleanup_helper(env, &thread0);
cleanup_helper(env, &thread1);
cleanup_helper(env, &thread2);
cleanup_helper(env, &thread3);
return result;
}
static int
test_full_cspace(env_t env)
{
int error;
seL4_CPtr cnode[CONFIG_WORD_SIZE];
seL4_CPtr ep = vka_alloc_endpoint_leaky(&env->vka);
seL4_Word ep_pos = 1;
/* Create 32 or 64 cnodes, each resolving one bit. */
for (unsigned int i = 0; i < CONFIG_WORD_SIZE; i++) {
cnode[i] = vka_alloc_cnode_object_leaky(&env->vka, 1);
assert(cnode[i]);
}
/* Copy cnode i to alternating slots in cnode i-1. */
seL4_Word slot = 0;
for (unsigned int i = 1; i < CONFIG_WORD_SIZE; i++) {
error = seL4_CNode_Copy(
cnode[i - 1], slot, 1,
env->cspace_root, cnode[i], seL4_WordBits,
seL4_AllRights);
test_assert(!error);
ep_pos |= (slot << i);
slot ^= 1;
}
/* In the final cnode, put an IPC endpoint in slot 1. */
error = seL4_CNode_Copy(
cnode[CONFIG_WORD_SIZE - 1], slot, 1,
env->cspace_root, ep, seL4_WordBits,
seL4_AllRights);
test_assert(!error);
/* Start a helper thread in our own cspace, to let it get set up. */
helper_thread_t t;
create_helper_thread(env, &t);
start_helper(env, &t, ipc_caller, ep, ep_pos, CONFIG_WORD_SIZE, 0);
/* Wait for it. */
seL4_MessageInfo_t tag;
seL4_Word sender_badge = 0;
tag = seL4_Recv(ep, &sender_badge);
test_assert(seL4_MessageInfo_get_length(tag) == 1);
test_assert(seL4_GetMR(0) == READY_MAGIC);
/* Now switch its cspace. */
error = seL4_TCB_SetSpace(t.thread.tcb.cptr, t.fault_endpoint,
cnode[0], seL4_NilData, env->page_directory,
seL4_NilData);
test_assert(!error);
/* And now wait for it to do some tests and return to us. */
tag = seL4_Recv(ep, &sender_badge);
test_assert(seL4_MessageInfo_get_length(tag) == 1);
test_assert(seL4_GetMR(0) == SUCCESS_MAGIC);
cleanup_helper(env, &t);
return sel4test_get_result();
}
/*
* Test that thread suspending works when idling the system.
* Note: This test non-deterministically fails. If you find only this test
* try re-running the test suite.
*/
static int
test_thread_suspend(env_t env)
{
helper_thread_t t1;
volatile seL4_Word counter;
ZF_LOGD("test_thread_suspend\n");
create_helper_thread(env, &t1);
set_helper_priority(&t1, 100);
start_helper(env, &t1, (helper_fn_t) counter_func, (seL4_Word) &counter, 0, 0, 0);
timer_periodic(env->timer->timer, 10 * NS_IN_MS);
timer_start(env->timer->timer);
sel4_timer_handle_single_irq(env->timer);
seL4_Word old_counter;
/* Let the counter thread run. We might have a pending interrupt, so
* wait twice. */
wait_for_timer_interrupt(env);
wait_for_timer_interrupt(env);
old_counter = counter;
/* Let it run again. */
wait_for_timer_interrupt(env);
/* Now, counter should have moved. */
test_check(counter != old_counter);
old_counter = counter;
/* Suspend the thread, and wait again. */
seL4_TCB_Suspend(t1.thread.tcb.cptr);
wait_for_timer_interrupt(env);
/* Counter should not have moved. */
test_check(counter == old_counter);
old_counter = counter;
/* Check once more for good measure. */
wait_for_timer_interrupt(env);
/* Counter should not have moved. */
test_check(counter == old_counter);
old_counter = counter;
/* Resume the thread and check it does move. */
seL4_TCB_Resume(t1.thread.tcb.cptr);
wait_for_timer_interrupt(env);
test_check(counter != old_counter);
/* Done. */
timer_stop(env->timer->timer);
sel4_timer_handle_single_irq(env->timer);
cleanup_helper(env, &t1);
return sel4test_get_result();
}
/*
* Free all used resources in the tree
*/
bool syn_tree::cleanup(void) {
bool res;
// clear all other attributes
res = cleanup_helper(&root);
if(res)
cur = NULL;
return res;
}
/*
* Remove the current token (moves current token to parent token)
*/
bool syn_tree::remove(void) {
token *parent = NULL;
// check that current token exists
if(!cur)
return false;
// remove current token and move to parent token
if(!cur->get_parent()) {
cleanup_helper(&cur);
root = cur;
} else {
parent = cur->get_parent();
for(unsigned int pos = 0; pos < parent->size(); pos++)
if(parent->get_child(pos) == cur) {
parent->remove_child(pos);
break;
}
cleanup_helper(&cur);
cur = parent;
}
return true;
}
int test_tcb_null_cspace_setspace(env_t env)
{
helper_thread_t thread;
int error;
create_helper_thread(env, &thread);
/* This should fail because we're passing an invalid CSpace cap. */
error = seL4_TCB_SetSpace(thread.thread.tcb.cptr, 0, seL4_CapNull,
seL4_CapData_Guard_new(0, 0), env->page_directory,
seL4_CapData_Guard_new(0, 0));
cleanup_helper(env, &thread);
return error ? sel4test_get_result() : FAILURE;
}
static int
test_all_priorities(struct env* env)
{
int i;
helper_thread_t **threads = (helper_thread_t **) malloc(sizeof(helper_thread_t*) * NUM_PRIOS);
assert(threads != NULL);
for (i = 0; i < NUM_PRIOS; i++) {
threads[i] = (helper_thread_t*) malloc(sizeof(helper_thread_t));
assert(threads[i]);
}
vka_t *vka = &env->vka;
ZF_LOGD("Testing all thread priorities");
volatile seL4_Word last_prio = MAX_PRIO + 1;
seL4_CPtr ep = vka_alloc_endpoint_leaky(vka);
for (int prio = MIN_PRIO; prio <= MAX_PRIO; prio++) {
int idx = prio - MIN_PRIO;
test_check(idx >= 0 && idx < NUM_PRIOS);
create_helper_thread(env, threads[idx]);
set_helper_priority(threads[idx], prio);
start_helper(env, threads[idx], (helper_fn_t) prio_test_func,
prio, (seL4_Word) &last_prio, ep, 0);
}
/* Now block. */
seL4_Word sender_badge = 0;
seL4_Recv(ep, &sender_badge);
/* When we get woken up, last_prio should be MIN_PRIO. */
test_check(last_prio == MIN_PRIO);
for (int prio = MIN_PRIO; prio <= MAX_PRIO; prio++) {
int idx = prio - MIN_PRIO;
cleanup_helper(env, threads[idx]);
free(threads[idx]);
}
free(threads);
return sel4test_get_result();
}
/*
* Removes a child node (recursively) from the current token
*/
bool syn_tree::remove_child(unsigned int index) {
// check that current token exists
if(!cur)
return false;
// check that index is with-in-bounds
if(!get_size()
|| index >= get_size())
return false;
// cleanup
token *child = cur->get_child(index);
cur->remove_child(index);
cleanup_helper(&child);
return true;
}
/*
* Release resources used by tree
*/
bool syn_tree::cleanup_helper(token **root) {
unsigned int children;
// check that root token exists
if(!(*root))
return 0;
children = (*root)->size();
// remove all children of current token
for(unsigned int i = 0; i < children; i++) {
token *child = (*root)->get_child(i);
if(!cleanup_helper(&child))
return false;
}
// remove child tokens
(*root)->remove_children();
// remove root token
delete (*root);
(*root) = NULL;
return true;
}
static int
test_ep_recycle(env_t env)
{
seL4_MessageInfo_t tag = seL4_MessageInfo_new(0, 0, 0, 0);
struct {
helper_thread_t thread;
seL4_CPtr badged_ep;
seL4_CPtr derived_badged_ep;
volatile seL4_Word done;
} senders[NUM_BADGED_CLIENTS];
helper_thread_t bouncer;
seL4_CPtr bounce_ep;
UNUSED int error;
seL4_CPtr ep;
/* Create the master endpoint. */
ep = vka_alloc_endpoint_leaky(&env->vka);
/* Create N badged endpoints, and derive each of them. */
for (int i = 0; i < NUM_BADGED_CLIENTS; i++) {
senders[i].badged_ep = get_free_slot(env);
assert(senders[i].badged_ep != 0);
senders[i].derived_badged_ep = get_free_slot(env);
assert(senders[i].derived_badged_ep != 0);
seL4_CapData_t cap_data;
cap_data = seL4_CapData_Badge_new (i + 200);
error = cnode_mint(env, ep, senders[i].badged_ep, seL4_AllRights, cap_data);
assert(!error);
error = cnode_copy(env, senders[i].badged_ep, senders[i].derived_badged_ep, seL4_AllRights);
assert(!error);
create_helper_thread(env, &senders[i].thread);
set_helper_priority(&senders[i].thread, 100);
senders[i].done = -1;
}
/* Create a bounce thread so we can get lower prio threads to run. */
bounce_ep = vka_alloc_endpoint_leaky(&env->vka);
create_helper_thread(env, &bouncer);
set_helper_priority(&bouncer, 0);
start_helper(env, &bouncer, bouncer_func, bounce_ep, 0, 0, 0);
for (int i = 0; i < NUM_BADGED_CLIENTS; i++) {
start_helper(env, &senders[i].thread, (helper_fn_t) call_func,
senders[i].derived_badged_ep, i + 100, (seL4_Word) &senders[i].done, 0);
}
/* Let the sender threads run. */
seL4_Call(bounce_ep, tag);
/* Receive a message from each endpoint and check the badge. */
for (int i = 0; i < NUM_BADGED_CLIENTS; i++) {
seL4_Word sender_badge;
seL4_MessageInfo_ptr_set_length(&tag, 1);
tag = seL4_Recv(ep, &sender_badge);
assert(seL4_MessageInfo_get_length(tag) == 1);
assert(seL4_GetMR(0) == sender_badge - 100);
seL4_SetMR(0, ~seL4_GetMR(0));
seL4_Reply(tag);
}
/* Let the sender threads run. */
seL4_Call(bounce_ep, tag);
/* Check none of the threads have failed yet. */
for (int i = 0; i < NUM_BADGED_CLIENTS; i++) {
assert(senders[i].done == 0);
}
/* Recycle each endpoint. */
for (int i = 0; i < NUM_BADGED_CLIENTS; i++) {
error = cnode_recycle(env, senders[i].badged_ep);
assert(!error);
/* Let thread run. */
seL4_Call(bounce_ep, tag);
/* Check that only the intended threads have now aborted. */
for (int j = 0; j < NUM_BADGED_CLIENTS; j++) {
if (j <= i) {
assert(senders[j].done == 1);
} else {
assert(senders[j].done == 0);
}
}
}
seL4_Call(bounce_ep, tag);
for (int i = 0; i < NUM_BADGED_CLIENTS; i++) {
cleanup_helper(env, &senders[i].thread);
}
cleanup_helper(env, &bouncer);
return sel4test_get_result();
}