Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Add CFG_CONCURRENT_SINGLE_INSTANCE_TA #1915

Merged
merged 1 commit into from
Nov 13, 2017
Merged

Add CFG_CONCURRENT_SINGLE_INSTANCE_TA #1915

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
20 changes: 19 additions & 1 deletion core/kernel/tee_ta_manager.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -55,11 +55,28 @@

/* This mutex protects the critical section in tee_ta_init_session */
struct mutex tee_ta_mutex = MUTEX_INITIALIZER;
struct tee_ta_ctx_head tee_ctxes = TAILQ_HEAD_INITIALIZER(tee_ctxes);

#ifndef CFG_CONCURRENT_SINGLE_INSTANCE_TA
static struct condvar tee_ta_cv = CONDVAR_INITIALIZER;
static int tee_ta_single_instance_thread = THREAD_ID_INVALID;
static size_t tee_ta_single_instance_count;
struct tee_ta_ctx_head tee_ctxes = TAILQ_HEAD_INITIALIZER(tee_ctxes);
#endif

#ifdef CFG_CONCURRENT_SINGLE_INSTANCE_TA
static void lock_single_instance(void)
{
}

static void unlock_single_instance(void)
{
}

static bool has_single_instance_lock(void)
{
return false;
}
#else
static void lock_single_instance(void)
{
/* Requires tee_ta_mutex to be held */
Expand Down Expand Up @@ -93,6 +110,7 @@ static bool has_single_instance_lock(void)
/* Requires tee_ta_mutex to be held */
return tee_ta_single_instance_thread == thread_get_id();
}
#endif

static bool tee_ta_try_set_busy(struct tee_ta_ctx *ctx)
{
Expand Down