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[Qemu-devel] [PATCH v2 3/3] Do not kick vcpus in TCG mode
From: |
Jan Kiszka |
Subject: |
[Qemu-devel] [PATCH v2 3/3] Do not kick vcpus in TCG mode |
Date: |
Mon, 11 Apr 2011 22:27:44 +0200 |
From: Jan Kiszka <address@hidden>
In TCG mode, iothread and vcpus run in lock-step. So it's pointless to
send a signal from qemu_cpu_kick to the vcpu thread - if we got here,
the receiver already left the vcpu loop.
Signed-off-by: Jan Kiszka <address@hidden>
---
cpus.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/cpus.c b/cpus.c
index 41bec7c..82a7806 100644
--- a/cpus.c
+++ b/cpus.c
@@ -860,7 +860,7 @@ void qemu_cpu_kick(void *_env)
CPUState *env = _env;
qemu_cond_broadcast(env->halt_cond);
- if (!env->thread_kicked) {
+ if (kvm_enabled() && !env->thread_kicked) {
qemu_cpu_kick_thread(env);
env->thread_kicked = true;
}
--
1.7.1
- [Qemu-devel] [PATCH v2 0/3] io-thread optimizations, Jan Kiszka, 2011/04/11
- [Qemu-devel] [PATCH v2 3/3] Do not kick vcpus in TCG mode,
Jan Kiszka <=
- [Qemu-devel] [PATCH v2 2/3] Poll main loop after I/O events were received, Jan Kiszka, 2011/04/11
- [Qemu-devel] [PATCH v2 1/3] Do not drop global mutex for polled main loop runs, Jan Kiszka, 2011/04/11
- Re: [Qemu-devel] [PATCH v2 0/3] io-thread optimizations, Paolo Bonzini, 2011/04/12
- Re: [Qemu-devel] [PATCH v2 0/3] io-thread optimizations, Aurelien Jarno, 2011/04/13
- Re: [Qemu-devel] [PATCH v2 0/3] io-thread optimizations, Aurelien Jarno, 2011/04/25
- Re: [Qemu-devel] [PATCH v2 0/3] io-thread optimizations, Jan Kiszka, 2011/04/26