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[Qemu-devel] [RFC PATCH 18/26] cpu-exec: don't overwrite exception_index
From: |
Pavel Dovgalyuk |
Subject: |
[Qemu-devel] [RFC PATCH 18/26] cpu-exec: don't overwrite exception_index |
Date: |
Tue, 31 Oct 2017 14:08:18 +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] [RFC PATCH 07/26] replay: added replay log format description, (continued)
- [Qemu-devel] [RFC PATCH 07/26] replay: added replay log format description, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 08/26] replay: make safe vmstop at record/replay, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 10/26] icount: fixed saving/restoring of icount warp timers, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 11/26] target/arm/arm-powertctl: drop BQL assertions, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 12/26] cpus: push BQL lock to qemu_*_wait_io_event, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 13/26] cpus: only take BQL for sleeping threads, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 14/26] replay/replay.c: bump REPLAY_VERSION again, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 15/26] replay/replay-internal.c: track holding of replay_lock, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 17/26] replay: push replay_mutex_lock up the call tree, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 16/26] replay: make locking visible outside replay code, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 18/26] cpu-exec: don't overwrite exception_index,
Pavel Dovgalyuk <=
- [Qemu-devel] [RFC PATCH 19/26] cpu-exec: reset exit flag before calling cpu_exec_nocache, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 20/26] replay: don't destroy mutex at exit, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 21/26] replay: check return values of fwrite, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 22/26] scripts/qemu-gdb: add simple tcg lock status helper, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 23/26] util/qemu-thread-*: add qemu_lock, locked and unlock trace events, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 24/26] scripts/analyse-locks-simpletrace.py: script to analyse lock times, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 26/26] scripts/qemu-gdb/timers.py: new helper to dump timer state, Pavel Dovgalyuk, 2017/10/31
- [Qemu-devel] [RFC PATCH 25/26] scripts/replay-dump.py: replay log dumper, Pavel Dovgalyuk, 2017/10/31
- Re: [Qemu-devel] [RFC PATCH 00/26] replay additions, no-reply, 2017/10/31
- [Qemu-devel] [RFC PATCH 00/26] replay additions, Pavel Dovgalyuk, 2017/10/31