diff options
| author | Yongbok Kim <yongbok.kim@imgtec.com> | 2017-03-03 11:20:21 +0000 |
|---|---|---|
| committer | Alex Bennée <alex.bennee@linaro.org> | 2017-03-09 10:41:48 +0000 |
| commit | d394698d73836d1c50545bdb32dc58d09708fcfb (patch) | |
| tree | 2b0516e6aaca14a069bf710bfed8ef119124adf4 /target/mips | |
| parent | d8b2239bcd8872a5c5f7534d1658fc2365caab2d (diff) | |
| download | qemu-d394698d73836d1c50545bdb32dc58d09708fcfb.tar.gz | |
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>
Diffstat (limited to 'target/mips')
| -rw-r--r-- | target/mips/op_helper.c | 21 |
1 files changed, 18 insertions, 3 deletions
diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c index b683fcb025..e5f3ea4042 100644 --- a/target/mips/op_helper.c +++ b/target/mips/op_helper.c @@ -17,6 +17,7 @@ * License along with this library; if not, see <http://www.gnu.org/licenses/>. */ #include "qemu/osdep.h" +#include "qemu/main-loop.h" #include "cpu.h" #include "qemu/host-utils.h" #include "exec/helper-proto.h" @@ -827,7 +828,11 @@ target_ulong helper_mftc0_tcschefback(CPUMIPSState *env) target_ulong helper_mfc0_count(CPUMIPSState *env) { - return (int32_t)cpu_mips_get_count(env); + int32_t count; + qemu_mutex_lock_iothread(); + count = (int32_t) cpu_mips_get_count(env); + qemu_mutex_unlock_iothread(); + return count; } target_ulong helper_mftc0_entryhi(CPUMIPSState *env) @@ -1375,7 +1380,9 @@ void helper_mtc0_hwrena(CPUMIPSState *env, target_ulong arg1) void helper_mtc0_count(CPUMIPSState *env, target_ulong arg1) { + qemu_mutex_lock_iothread(); cpu_mips_store_count(env, arg1); + qemu_mutex_unlock_iothread(); } void helper_mtc0_entryhi(CPUMIPSState *env, target_ulong arg1) @@ -1424,7 +1431,9 @@ void helper_mttc0_entryhi(CPUMIPSState *env, target_ulong arg1) void helper_mtc0_compare(CPUMIPSState *env, target_ulong arg1) { + qemu_mutex_lock_iothread(); cpu_mips_store_compare(env, arg1); + qemu_mutex_unlock_iothread(); } void helper_mtc0_status(CPUMIPSState *env, target_ulong arg1) @@ -1475,7 +1484,9 @@ void helper_mtc0_srsctl(CPUMIPSState *env, target_ulong arg1) void helper_mtc0_cause(CPUMIPSState *env, target_ulong arg1) { + qemu_mutex_lock_iothread(); cpu_mips_store_cause(env, arg1); + qemu_mutex_unlock_iothread(); } void helper_mttc0_cause(CPUMIPSState *env, target_ulong arg1) @@ -2296,12 +2307,16 @@ target_ulong helper_rdhwr_synci_step(CPUMIPSState *env) target_ulong helper_rdhwr_cc(CPUMIPSState *env) { + int32_t count; check_hwrena(env, 2, GETPC()); #ifdef CONFIG_USER_ONLY - return env->CP0_Count; + count = env->CP0_Count; #else - return (int32_t)cpu_mips_get_count(env); + qemu_mutex_lock_iothread(); + count = (int32_t)cpu_mips_get_count(env); + qemu_mutex_unlock_iothread(); #endif + return count; } target_ulong helper_rdhwr_ccres(CPUMIPSState *env) |