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authorPaolo Bonzini <pbonzini@redhat.com>2015-08-26 00:19:19 +0200
committerPaolo Bonzini <pbonzini@redhat.com>2015-09-09 15:34:54 +0200
commite0c382113f768cc375a0d61b7cb3692f1b4bba58 (patch)
tree87828150b475879623e8068d0c2249eb43fef596 /cpu-exec.c
parent9102dedaa1ee1e89ce4a81283c403ff4928e9ef9 (diff)
downloadqemu-arm-e0c382113f768cc375a0d61b7cb3692f1b4bba58.tar.gz
tcg: signal-free qemu_cpu_kick
Signals are slow and do not exist on Win32. The previous patches have done most of the legwork to introduce memory barriers (some of them were even there already for the sake of Windows!) and we can now set the flags directly in the iothread. qemu_cpu_kick_thread is not used anymore on TCG, since the TCG thread is never outside usermode while the CPU is running (not halted). Instead run the content of the signal handler (now in qemu_cpu_kick_no_halt) directly. qemu_cpu_kick_no_halt is also used in qemu_mutex_lock_iothread to avoid the overhead of qemu_cond_broadcast. Reviewed-by: Richard Henderson <rth@twiddle.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'cpu-exec.c')
-rw-r--r--cpu-exec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/cpu-exec.c b/cpu-exec.c
index ef9d74552e..6a30261a83 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -341,7 +341,7 @@ static void cpu_handle_debug_exception(CPUState *cpu)
/* main execution loop */
-volatile sig_atomic_t exit_request;
+bool exit_request;
CPUState *tcg_current_cpu;
int cpu_exec(CPUState *cpu)