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target/nios2: take BQL around interrupt check 

The interrupt controller does not have its own locking.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2017-03-01 11:28:04 +01:00
parent b01a2d07c9
commit c0d24e7f70
1 changed files with 3 additions and 0 deletions
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3
target/nios2/op_helper.c
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@ -21,6 +21,7 @@
#include "cpu.h" #include "cpu.h"
#include "exec/helper-proto.h" #include "exec/helper-proto.h"
#include "exec/cpu_ldst.h" #include "exec/cpu_ldst.h"
#include "qemu/main-loop.h"
#if !defined(CONFIG_USER_ONLY) #if !defined(CONFIG_USER_ONLY)
void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn) void helper_mmu_read_debug(CPUNios2State *env, uint32_t rn)
@ -35,7 +36,9 @@ void helper_mmu_write(CPUNios2State *env, uint32_t rn, uint32_t v)
void helper_check_interrupts(CPUNios2State *env) void helper_check_interrupts(CPUNios2State *env)
{ {
qemu_mutex_lock_iothread();
nios2_check_interrupts(env); nios2_check_interrupts(env);
qemu_mutex_unlock_iothread();
} }
#endif /* !CONFIG_USER_ONLY */ #endif /* !CONFIG_USER_ONLY */