diff options
| -rw-r--r-- | hw/sparc/sun4m.c | 3 | ||||
| -rw-r--r-- | hw/sparc64/sparc64.c | 3 | ||||
| -rw-r--r-- | target/sparc/int64_helper.c | 3 | ||||
| -rw-r--r-- | target/sparc/win_helper.c | 13 |
4 files changed, 22 insertions, 0 deletions
diff --git a/hw/sparc/sun4m.c b/hw/sparc/sun4m.c index 61416a6426..873cd7df9a 100644 --- a/hw/sparc/sun4m.c +++ b/hw/sparc/sun4m.c @@ -142,6 +142,9 @@ void cpu_check_irqs(CPUSPARCState *env) { CPUState *cs; + /* We should be holding the BQL before we mess with IRQs */ + g_assert(qemu_mutex_iothread_locked()); + if (env->pil_in && (env->interrupt_index == 0 || (env->interrupt_index & ~15) == TT_EXTINT)) { unsigned int i; diff --git a/hw/sparc64/sparc64.c b/hw/sparc64/sparc64.c index b3d219c769..4e4fdab065 100644 --- a/hw/sparc64/sparc64.c +++ b/hw/sparc64/sparc64.c @@ -55,6 +55,9 @@ void cpu_check_irqs(CPUSPARCState *env) uint32_t pil = env->pil_in | (env->softint & ~(SOFTINT_TIMER | SOFTINT_STIMER)); + /* We should be holding the BQL before we mess with IRQs */ + g_assert(qemu_mutex_iothread_locked()); + /* TT_IVEC has a higher priority (16) than TT_EXTINT (31..17) */ if (env->ivec_status & 0x20) { return; diff --git a/target/sparc/int64_helper.c b/target/sparc/int64_helper.c index 605747c93c..f942973c22 100644 --- a/target/sparc/int64_helper.c +++ b/target/sparc/int64_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/log.h" @@ -208,7 +209,9 @@ static bool do_modify_softint(CPUSPARCState *env, uint32_t value) env->softint = value; #if !defined(CONFIG_USER_ONLY) if (cpu_interrupts_enabled(env)) { + qemu_mutex_lock_iothread(); cpu_check_irqs(env); + qemu_mutex_unlock_iothread(); } #endif return true; diff --git a/target/sparc/win_helper.c b/target/sparc/win_helper.c index 71b3dd37e8..154279ecda 100644 --- a/target/sparc/win_helper.c +++ b/target/sparc/win_helper.c @@ -18,6 +18,7 @@ */ #include "qemu/osdep.h" +#include "qemu/main-loop.h" #include "cpu.h" #include "exec/exec-all.h" #include "exec/helper-proto.h" @@ -82,6 +83,7 @@ void cpu_put_psr_raw(CPUSPARCState *env, target_ulong val) #endif } +/* Called with BQL held */ void cpu_put_psr(CPUSPARCState *env, target_ulong val) { cpu_put_psr_raw(env, val); @@ -153,7 +155,10 @@ void helper_wrpsr(CPUSPARCState *env, target_ulong new_psr) if ((new_psr & PSR_CWP) >= env->nwindows) { cpu_raise_exception_ra(env, TT_ILL_INSN, GETPC()); } else { + /* cpu_put_psr may trigger interrupts, hence BQL */ + qemu_mutex_lock_iothread(); cpu_put_psr(env, new_psr); + qemu_mutex_unlock_iothread(); } } @@ -368,7 +373,9 @@ void helper_wrpstate(CPUSPARCState *env, target_ulong new_state) #if !defined(CONFIG_USER_ONLY) if (cpu_interrupts_enabled(env)) { + qemu_mutex_lock_iothread(); cpu_check_irqs(env); + qemu_mutex_unlock_iothread(); } #endif } @@ -381,7 +388,9 @@ void helper_wrpil(CPUSPARCState *env, target_ulong new_pil) env->psrpil = new_pil; if (cpu_interrupts_enabled(env)) { + qemu_mutex_lock_iothread(); cpu_check_irqs(env); + qemu_mutex_unlock_iothread(); } #endif } @@ -408,7 +417,9 @@ void helper_done(CPUSPARCState *env) #if !defined(CONFIG_USER_ONLY) if (cpu_interrupts_enabled(env)) { + qemu_mutex_lock_iothread(); cpu_check_irqs(env); + qemu_mutex_unlock_iothread(); } #endif } @@ -435,7 +446,9 @@ void helper_retry(CPUSPARCState *env) #if !defined(CONFIG_USER_ONLY) if (cpu_interrupts_enabled(env)) { + qemu_mutex_lock_iothread(); cpu_check_irqs(env); + qemu_mutex_unlock_iothread(); } #endif } |