[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[Qemu-devel] [RFC PATCH v11 09/23] i386: interrupt poll processing
From: |
Pavel Dovgalyuk |
Subject: |
[Qemu-devel] [RFC PATCH v11 09/23] i386: interrupt poll processing |
Date: |
Mon, 27 Apr 2015 10:33:05 +0300 |
User-agent: |
StGit/0.16 |
This patch updates x86_cpu_exec_interrupt function.
It can process two interrupt request at a time (poll and another one).
This makes its execution non-deterministic. Determinism is requred
for recorded icount execution.
Signed-off-by: Pavel Dovgalyuk <address@hidden>
---
target-i386/seg_helper.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/target-i386/seg_helper.c b/target-i386/seg_helper.c
index 2bc757a..92a49b3 100644
--- a/target-i386/seg_helper.c
+++ b/target-i386/seg_helper.c
@@ -1294,6 +1294,9 @@ bool x86_cpu_exec_interrupt(CPUState *cs, int
interrupt_request)
if (interrupt_request & CPU_INTERRUPT_POLL) {
cs->interrupt_request &= ~CPU_INTERRUPT_POLL;
apic_poll_irq(cpu->apic_state);
+ /* Don't process multiple interrupt requests in a single call.
+ This is required to make icount-driven execution deterministic. */
+ return true;
}
#endif
if (interrupt_request & CPU_INTERRUPT_SIPI) {
- [Qemu-devel] [RFC PATCH v11 00/23] Deterministic replay core, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 01/23] i386: partial revert of interrupt poll fix, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 02/23] replay: global variables and function stubs, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 03/23] sysemu: system functions for replay, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 04/23] replay: internal functions for replay log, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 05/23] replay: introduce mutex to protect the replay log, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 06/23] replay: introduce icount event, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 07/23] cpu-exec: allow temporary disabling icount, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 08/23] cpu: replay instructions sequence, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 09/23] i386: interrupt poll processing,
Pavel Dovgalyuk <=
- [Qemu-devel] [RFC PATCH v11 10/23] replay: interrupts and exceptions, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 11/23] replay: asynchronous events infrastructure, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 12/23] replay: recording and replaying clock ticks, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 13/23] replay: shutdown event, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 14/23] replay: checkpoints, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 15/23] aio: replace stack of bottom halves with queue, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 16/23] replay: bottom halves, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 17/23] replay: replay aio requests, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 18/23] replay: thread pool, Pavel Dovgalyuk, 2015/04/27
- [Qemu-devel] [RFC PATCH v11 19/23] typedef: add typedef for QemuOpts, Pavel Dovgalyuk, 2015/04/27