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author | 2009-10-07 16:38:03 -0300 | |
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committer | 2009-10-12 09:42:31 -0500 | |
commit | d549db5a732ef2ec145b84c5008a7585cf17cf67 (patch) | |
tree | 62fa1660dca3ce393c20c92be0469408d4e46204 /kvm-all.c | |
parent | TARGET_I386 is always defined if TARGET_X86_64 is defined (diff) | |
download | qemu-kvm-d549db5a732ef2ec145b84c5008a7585cf17cf67.tar.gz qemu-kvm-d549db5a732ef2ec145b84c5008a7585cf17cf67.tar.bz2 qemu-kvm-d549db5a732ef2ec145b84c5008a7585cf17cf67.zip |
unlock iothread mutex before running kvm ioctl
Without this, kvm will hold the mutex while it issues its run ioctl,
and never be able to step out of it, causing a deadlock.
Patchworks-ID: 35359
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'kvm-all.c')
-rw-r--r-- | kvm-all.c | 2 |
1 files changed, 2 insertions, 0 deletions
@@ -605,7 +605,9 @@ int kvm_cpu_exec(CPUState *env) } kvm_arch_pre_run(env, run); + qemu_mutex_unlock_iothread(); ret = kvm_vcpu_ioctl(env, KVM_RUN, 0); + qemu_mutex_lock_iothread(); kvm_arch_post_run(env, run); if (ret == -EINTR || ret == -EAGAIN) { |