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-rw-r--r--accel/tcg/cpu-exec.c47
1 files changed, 18 insertions, 29 deletions
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 32104b8d8c..f8a1d68db7 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -28,6 +28,7 @@
#include "exec/address-spaces.h"
#include "qemu/rcu.h"
#include "exec/tb-hash.h"
+#include "exec/tb-lookup.h"
#include "exec/log.h"
#include "qemu/main-loop.h"
#if defined(TARGET_I386) && !defined(CONFIG_USER_ONLY)
@@ -368,43 +369,31 @@ static inline TranslationBlock *tb_find(CPUState *cpu,
TranslationBlock *last_tb,
int tb_exit)
{
- CPUArchState *env = (CPUArchState *)cpu->env_ptr;
TranslationBlock *tb;
target_ulong cs_base, pc;
uint32_t flags;
bool acquired_tb_lock = false;
- /* we record a subset of the CPU state. It will
- always be the same before a given translated block
- is executed. */
- cpu_get_tb_cpu_state(env, &pc, &cs_base, &flags);
- tb = atomic_rcu_read(&cpu->tb_jmp_cache[tb_jmp_cache_hash_func(pc)]);
- if (unlikely(!tb || tb->pc != pc || tb->cs_base != cs_base ||
- tb->flags != flags ||
- tb->trace_vcpu_dstate != *cpu->trace_dstate)) {
- tb = tb_htable_lookup(cpu, pc, cs_base, flags);
- if (!tb) {
-
- /* mmap_lock is needed by tb_gen_code, and mmap_lock must be
- * taken outside tb_lock. As system emulation is currently
- * single threaded the locks are NOPs.
- */
- mmap_lock();
- tb_lock();
- acquired_tb_lock = true;
-
- /* There's a chance that our desired tb has been translated while
- * taking the locks so we check again inside the lock.
- */
- tb = tb_htable_lookup(cpu, pc, cs_base, flags);
- if (!tb) {
- /* if no translated code available, then translate it now */
- tb = tb_gen_code(cpu, pc, cs_base, flags, 0);
- }
+ tb = tb_lookup__cpu_state(cpu, &pc, &cs_base, &flags);
+ if (tb == NULL) {
+ /* mmap_lock is needed by tb_gen_code, and mmap_lock must be
+ * taken outside tb_lock. As system emulation is currently
+ * single threaded the locks are NOPs.
+ */
+ mmap_lock();
+ tb_lock();
+ acquired_tb_lock = true;
- mmap_unlock();
+ /* There's a chance that our desired tb has been translated while
+ * taking the locks so we check again inside the lock.
+ */
+ tb = tb_htable_lookup(cpu, pc, cs_base, flags);
+ if (likely(tb == NULL)) {
+ /* if no translated code available, then translate it now */
+ tb = tb_gen_code(cpu, pc, cs_base, flags, 0);
}
+ mmap_unlock();
/* We add the TB in the virtual pc hash table for the fast lookup */
atomic_set(&cpu->tb_jmp_cache[tb_jmp_cache_hash_func(pc)], tb);
}