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[Qemu-devel] [PATCH v7 03/14] replay: exception replay fix
From: |
Pavel Dovgalyuk |
Subject: |
[Qemu-devel] [PATCH v7 03/14] replay: exception replay fix |
Date: |
Tue, 24 Jan 2017 10:17:13 +0300 |
User-agent: |
StGit/0.16 |
This patch fixes replaying the exception when TB cache is full.
It breaks cpu loop execution through setting exception_index
to process such queued work as TB flush.
Signed-off-by: Pavel Dovgalyuk <address@hidden>
---
cpu-exec.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/cpu-exec.c b/cpu-exec.c
index fa08c73..79a2167 100644
--- a/cpu-exec.c
+++ b/cpu-exec.c
@@ -451,6 +451,10 @@ static inline bool cpu_handle_exception(CPUState *cpu, int
*ret)
#ifndef CONFIG_USER_ONLY
} else if (replay_has_exception()
&& cpu->icount_decr.u16.low + cpu->icount_extra == 0) {
+ /* Break the execution loop in case of running out of TB cache.
+ This is needed to make flushing of the TB cache, because
+ real flush is queued to be executed outside the cpu loop. */
+ cpu->exception_index = EXCP_INTERRUPT;
/* try to cause an exception pending in the log */
cpu_exec_nocache(cpu, 1, tb_find(cpu, NULL, 0), true);
*ret = -1;
- [Qemu-devel] [PATCH v7 00/14] replay additions, Pavel Dovgalyuk, 2017/01/24
- [Qemu-devel] [PATCH v7 01/14] icount: update instruction counter on apic patching, Pavel Dovgalyuk, 2017/01/24
- [Qemu-devel] [PATCH v7 02/14] replay: improve interrupt handling, Pavel Dovgalyuk, 2017/01/24
- [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix,
Pavel Dovgalyuk <=
- Re: [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix, Paolo Bonzini, 2017/01/25
- Re: [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix, Pavel Dovgalyuk, 2017/01/25
- Re: [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix, Paolo Bonzini, 2017/01/25
- Re: [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix, Pavel Dovgalyuk, 2017/01/25
- Re: [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix, Paolo Bonzini, 2017/01/25
- Re: [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix, Pavel Dovgalyuk, 2017/01/25
- Re: [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix, Paolo Bonzini, 2017/01/25
- Re: [Qemu-devel] [PATCH v7 03/14] replay: exception replay fix, Pavel Dovgalyuk, 2017/01/25
[Qemu-devel] [PATCH v7 04/14] icount: exit cpu loop on expire, Pavel Dovgalyuk, 2017/01/24