diff options
| author | Alex Bennée <alex.bennee@linaro.org> | 2017-03-30 16:04:09 +0100 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2017-04-10 10:14:50 +0100 |
| commit | b4e79a502ff2ac06a21c45f598870de807eb5d20 (patch) | |
| tree | 6f2ec25cc36236a2531423ed948949da6fea5f65 | |
| parent | 8695350357abc38a4f915ba6cb62e796bbbaf111 (diff) | |
target/i386/misc_helper: wrap BQL around another IRQ generator
Anything that calls into HW emulation must be protected by the BQL.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
| -rw-r--r-- | target/i386/misc_helper.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target/i386/misc_helper.c b/target/i386/misc_helper.c index ca2ea09f54..628f64aad5 100644 --- a/target/i386/misc_helper.c +++ b/target/i386/misc_helper.c @@ -18,6 +18,7 @@ */ #include "qemu/osdep.h" +#include "qemu/main-loop.h" #include "cpu.h" #include "exec/helper-proto.h" #include "exec/exec-all.h" @@ -156,7 +157,9 @@ void helper_write_crN(CPUX86State *env, int reg, target_ulong t0) break; case 8: if (!(env->hflags2 & HF2_VINTR_MASK)) { + qemu_mutex_lock_iothread(); cpu_set_apic_tpr(x86_env_get_cpu(env)->apic_state, t0); + qemu_mutex_unlock_iothread(); } env->v_tpr = t0 & 0x0f; break; |