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| author | Goran Ferenc <goran.ferenc@imgtec.com> | 2019-02-11 16:48:39 +0100 |
|---|---|---|
| committer | Aleksandar Markovic <amarkovic@wavecomp.com> | 2019-02-14 17:47:28 +0100 |
| commit | 41931c0137eeeff1303f254ed610217c0fa00313 (patch) | |
| tree | 67dbd7e237b7b5894bcff45ab88938b28c852925 /target/mips | |
| parent | 215581bdf1659c80645125df56cd2daa40de3d97 (diff) | |
| download | qemu-41931c0137eeeff1303f254ed610217c0fa00313.zip qemu-41931c0137eeeff1303f254ed610217c0fa00313.tar.gz qemu-41931c0137eeeff1303f254ed610217c0fa00313.tar.bz2 | |
target/mips: hold BQL in mips_vpe_wake()
Hold BQL whenever mips_vpe_wake() is invoked.
Without this patch, MIPS MT with MTTCG enabled triggers an abort in
tcg_handle_interrupt() due to an unlocked access to cpu_interrupt().
This patch makes sure that the BQL is held in this case.
Signed-off-by: Goran Ferenc <goran.ferenc@imgtec.com>
Signed-off-by: Miodrag Dinic <miodrag.dinic@imgtec.com>
Signed-off-by: Aleksandar Markovic <amarkovic@wavecomp.com>
Acked-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Diffstat (limited to 'target/mips')
| -rw-r--r-- | target/mips/op_helper.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target/mips/op_helper.c b/target/mips/op_helper.c index 8c53b3b..0f272a5 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 "internal.h" #include "qemu/host-utils.h" @@ -638,7 +639,9 @@ static inline void mips_vpe_wake(MIPSCPU *c) /* Don't set ->halted = 0 directly, let it be done via cpu_has_work because there might be other conditions that state that c should be sleeping. */ + qemu_mutex_lock_iothread(); cpu_interrupt(CPU(c), CPU_INTERRUPT_WAKE); + qemu_mutex_unlock_iothread(); } static inline void mips_vpe_sleep(MIPSCPU *cpu) |