target/mips: hold BQL for timer interrupts
Hold BQL when accessing timer which can cause interrupts Signed-off-by: Yongbok Kim <yongbok.kim@imgtec.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
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@ -17,6 +17,7 @@
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* License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "qemu/osdep.h"
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#include "qemu/main-loop.h"
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#include "cpu.h"
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#include "qemu/host-utils.h"
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#include "exec/helper-proto.h"
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@ -827,7 +828,11 @@ target_ulong helper_mftc0_tcschefback(CPUMIPSState *env)
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target_ulong helper_mfc0_count(CPUMIPSState *env)
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{
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return (int32_t)cpu_mips_get_count(env);
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int32_t count;
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qemu_mutex_lock_iothread();
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count = (int32_t) cpu_mips_get_count(env);
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qemu_mutex_unlock_iothread();
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return count;
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}
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target_ulong helper_mftc0_entryhi(CPUMIPSState *env)
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@ -1375,7 +1380,9 @@ void helper_mtc0_hwrena(CPUMIPSState *env, target_ulong arg1)
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void helper_mtc0_count(CPUMIPSState *env, target_ulong arg1)
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{
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qemu_mutex_lock_iothread();
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cpu_mips_store_count(env, arg1);
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qemu_mutex_unlock_iothread();
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}
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void helper_mtc0_entryhi(CPUMIPSState *env, target_ulong arg1)
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@ -1424,7 +1431,9 @@ void helper_mttc0_entryhi(CPUMIPSState *env, target_ulong arg1)
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void helper_mtc0_compare(CPUMIPSState *env, target_ulong arg1)
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{
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qemu_mutex_lock_iothread();
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cpu_mips_store_compare(env, arg1);
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qemu_mutex_unlock_iothread();
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}
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void helper_mtc0_status(CPUMIPSState *env, target_ulong arg1)
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@ -1475,7 +1484,9 @@ void helper_mtc0_srsctl(CPUMIPSState *env, target_ulong arg1)
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void helper_mtc0_cause(CPUMIPSState *env, target_ulong arg1)
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{
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qemu_mutex_lock_iothread();
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cpu_mips_store_cause(env, arg1);
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qemu_mutex_unlock_iothread();
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}
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void helper_mttc0_cause(CPUMIPSState *env, target_ulong arg1)
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@ -2296,12 +2307,16 @@ target_ulong helper_rdhwr_synci_step(CPUMIPSState *env)
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target_ulong helper_rdhwr_cc(CPUMIPSState *env)
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{
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int32_t count;
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check_hwrena(env, 2, GETPC());
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#ifdef CONFIG_USER_ONLY
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return env->CP0_Count;
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count = env->CP0_Count;
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#else
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return (int32_t)cpu_mips_get_count(env);
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qemu_mutex_lock_iothread();
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count = (int32_t)cpu_mips_get_count(env);
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qemu_mutex_unlock_iothread();
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#endif
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return count;
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}
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target_ulong helper_rdhwr_ccres(CPUMIPSState *env)
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