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[Qemu-devel] [RFCPATCH18/20] cpu-exec: don't overwrite exception_index
From: |
Pavel Dovgalyuk |
Subject: |
[Qemu-devel] [RFCPATCH18/20] cpu-exec: don't overwrite exception_index |
Date: |
Tue, 31 Oct 2017 13:49:18 +0300 |
User-agent: |
StGit/0.17.1-dirty |
This patch adds a condition before overwriting exception_index fiels.
It is needed when exception_index is already set to some meaningful value.
Signed-off-by: Pavel Dovgalyuk <address@hidden>
---
accel/tcg/cpu-exec.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/accel/tcg/cpu-exec.c b/accel/tcg/cpu-exec.c
index 4318441..35d0240 100644
--- a/accel/tcg/cpu-exec.c
+++ b/accel/tcg/cpu-exec.c
@@ -585,7 +585,9 @@ static inline bool cpu_handle_interrupt(CPUState *cpu,
if (unlikely(atomic_read(&cpu->exit_request)
|| (use_icount && cpu->icount_decr.u16.low + cpu->icount_extra == 0)))
{
atomic_set(&cpu->exit_request, 0);
- cpu->exception_index = EXCP_INTERRUPT;
+ if (cpu->exception_index == -1) {
+ cpu->exception_index = EXCP_INTERRUPT;
+ }
return true;
}
- [Qemu-devel] [RFCPATCH08/20] replay: make safe vmstop at record/replay, (continued)
- [Qemu-devel] [RFCPATCH08/20] replay: make safe vmstop at record/replay, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH09/20] replay: save prior value of the host clock, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH10/20] icount: fixed saving/restoring of icount warp timers, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH11/20] target/arm/arm-powertctl: drop BQL assertions, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH12/20] cpus: push BQL lock to qemu_*_wait_io_event, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH13/20] cpus: only take BQL for sleeping threads, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH14/20] replay/replay.c: bump REPLAY_VERSION again, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH15/20] replay/replay-internal.c: track holding of replay_lock, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH16/20] replay: make locking visible outside replay code, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH17/20] replay: push replay_mutex_lock up the call tree, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH18/20] cpu-exec: don't overwrite exception_index,
Pavel Dovgalyuk <=
- [Qemu-devel] [RFCPATCH19/20] cpu-exec: reset exit flag before calling cpu_exec_nocache, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFCPATCH20/20] replay: don't destroy mutex at exit, Pavel Dovgalyuk, 2017/10/31