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authorPaolo Bonzini <pbonzini@redhat.com>2015-06-24 14:16:26 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2015-08-14 23:40:32 +0200
commit414b15c909c88e4cf5f10e80d033b3aa90bcc9e1 (patch)
tree04d817361a25bc06a6243d5cfcf693017fe4bc5c /translate-all.c
parentb4a4b8d0e0767c85946fd8fc404643bf5766351a (diff)
downloadqemu-arm-414b15c909c88e4cf5f10e80d033b3aa90bcc9e1.tar.gz
exec: drop cpu_can_do_io, just read cpu->can_do_io
After commit 626cf8f (icount: set can_do_io outside TB execution, 2014-12-08), can_do_io is set to 1 if not executing code. It is no longer necessary to make this assumption in cpu_can_do_io. It is also possible to remove the use_icount test, simply by never setting cpu->can_do_io to 0 unless use_icount is true. With these changes cpu_can_do_io boils down to a read of cpu->can_do_io. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'translate-all.c')
-rw-r--r--translate-all.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/translate-all.c b/translate-all.c
index 755cdaba9c..9c46ffa0e3 100644
--- a/translate-all.c
+++ b/translate-all.c
@@ -222,6 +222,7 @@ static int cpu_restore_state_from_tb(CPUState *cpu, TranslationBlock *tb,
gen_intermediate_code_pc(env, tb);
if (tb->cflags & CF_USE_ICOUNT) {
+ assert(use_icount);
/* Reset the cycle counter to the start of the block. */
cpu->icount_decr.u16.low += tb->icount;
/* Clear the IO flag. */
@@ -1470,7 +1471,7 @@ static void tcg_handle_interrupt(CPUState *cpu, int mask)
if (use_icount) {
cpu->icount_decr.u16.high = 0xffff;
- if (!cpu_can_do_io(cpu)
+ if (!cpu->can_do_io
&& (mask & ~old_mask) != 0) {
cpu_abort(cpu, "Raised interrupt while not in I/O function");
}