From 1a28cac3161f8a85ee0256776068eaed2da025e5 Mon Sep 17 00:00:00 2001 From: Marcelo Tosatti Date: Tue, 4 May 2010 09:45:20 -0300 Subject: make SIG_IPI to tcg vcpu thread reliable Store tcg loop exit request on a global variable, and transfer it to per-CPUState exit_request after assignment of cpu_single_env. This makes exit request signal from robust. Drop the timedlock hack. Signed-off-by: Marcelo Tosatti Signed-off-by: Avi Kivity --- cpu-exec.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'cpu-exec.c') diff --git a/cpu-exec.c b/cpu-exec.c index dc81e79435..c776605e05 100644 --- a/cpu-exec.c +++ b/cpu-exec.c @@ -213,6 +213,8 @@ static void cpu_handle_debug_exception(CPUState *env) /* main execution loop */ +volatile sig_atomic_t exit_request; + int cpu_exec(CPUState *env1) { volatile host_reg_t saved_env_reg; @@ -234,6 +236,11 @@ int cpu_exec(CPUState *env1) asm(""); env = env1; + if (exit_request) { + env->exit_request = 1; + exit_request = 0; + } + #if defined(TARGET_I386) if (!kvm_enabled()) { /* put eflags in CPU temporary format */ -- cgit v1.2.3