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| author | Marcelo Tosatti <mtosatti@redhat.com> | 2010-05-04 09:45:20 -0300 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2010-05-11 14:02:22 -0300 |
| commit | 1a28cac3161f8a85ee0256776068eaed2da025e5 (patch) | |
| tree | d2c07947229fefb3504c26fd13e5853d13c68a0e /cpu-exec.c | |
| parent | 273faf1b6dbdedd0fe9fc519ec73380eced667c2 (diff) | |
| download | focaccia-qemu-1a28cac3161f8a85ee0256776068eaed2da025e5.tar.gz focaccia-qemu-1a28cac3161f8a85ee0256776068eaed2da025e5.zip | |
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 <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
Diffstat (limited to 'cpu-exec.c')
| -rw-r--r-- | cpu-exec.c | 7 |
1 files changed, 7 insertions, 0 deletions
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 */ |