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From: Paolo Bonzini <pbonzini@redhat.com>
To: Peter Maydell <peter.maydell@linaro.org>
Cc: mttcg@greensocs.com, "QEMU Developers" <qemu-devel@nongnu.org>,
	"KONRAD Frédéric" <fred.konrad@greensocs.com>
Subject: Re: [Qemu-devel] [PATCH 02/10] cpus: remove tcg_halt_cond global variable.
Date: Sat, 29 Aug 2015 08:52:49 +0200	[thread overview]
Message-ID: <55E156C1.7020909@redhat.com> (raw)
In-Reply-To: <CAFEAcA-4fdJMjg116tTKqZiQYaFiV=qMaUW_ngNkgOW1DcYrYA@mail.gmail.com>



On 28/08/2015 16:36, Peter Maydell wrote:
> With this patch, code-wise tcg_halt_cond and tcg_cpu_thread
> are used in pretty much parallel ways (first call into
> qemu_tcg_init_vcpu() sets them up, all the rest just copy
> them into the CPU struct). The only difference is that one
> of them a static at file scope and the other one is a static
> at function scope. It seems a shame to not have them be
> exactly parallel...

Good point, this does the trick:

diff --git a/cpus.c b/cpus.c
index 105b914..054dd68 100644
--- a/cpus.c
+++ b/cpus.c
@@ -786,8 +786,6 @@ static unsigned iothread_requesting_mutex;
 
 static QemuThread io_thread;
 
-static QemuThread *tcg_cpu_thread;
-
 /* cpu creation */
 static QemuCond qemu_cpu_cond;
 /* system init */
@@ -1222,6 +1220,7 @@ static void qemu_tcg_init_vcpu(CPUState *cpu)
 {
     char thread_name[VCPU_THREAD_NAME_SIZE];
     static QemuCond *tcg_halt_cond;
+    static QemuThread *tcg_cpu_thread;
 
     tcg_cpu_address_space_init(cpu, cpu->as);
 
Paolo

  reply	other threads:[~2015-08-29  6:52 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-08-12 16:40 [Qemu-devel] [PATCH 00/10] translate-all.c thread-safety Paolo Bonzini
2015-08-12 16:40 ` [Qemu-devel] [PATCH 01/10] cpus: protect work list with work_mutex Paolo Bonzini
2015-08-28 14:33   ` Peter Maydell
2015-08-12 16:40 ` [Qemu-devel] [PATCH 02/10] cpus: remove tcg_halt_cond global variable Paolo Bonzini
2015-08-13 13:05   ` Frederic Konrad
2015-08-13 13:08     ` Paolo Bonzini
2015-08-13 13:19       ` Frederic Konrad
2015-08-28 14:36   ` Peter Maydell
2015-08-29  6:52     ` Paolo Bonzini [this message]
2015-08-12 16:40 ` [Qemu-devel] [PATCH 03/10] replace spinlock by QemuMutex Paolo Bonzini
2015-08-13 12:17   ` Frederic Konrad
2015-08-13 13:12     ` Paolo Bonzini
2015-08-13 13:21       ` Frederic Konrad
2015-08-28 14:49   ` Peter Maydell
2015-08-28 14:53     ` Frederic Konrad
2015-08-29  6:51       ` Paolo Bonzini
2015-08-12 16:40 ` [Qemu-devel] [PATCH 04/10] exec-all: remove non-TCG stuff from exec-all.h header Paolo Bonzini
2015-08-28 14:53   ` Peter Maydell
2015-08-29  6:55     ` Paolo Bonzini
2015-08-12 16:40 ` [Qemu-devel] [PATCH 05/10] cpu-exec: elide more icount code if CONFIG_USER_ONLY Paolo Bonzini
2015-08-13 13:14   ` Frederic Konrad
2015-08-13 14:06     ` Paolo Bonzini
2015-08-28 14:56   ` Peter Maydell
2015-08-29  7:07     ` Paolo Bonzini
2015-08-12 16:40 ` [Qemu-devel] [PATCH 06/10] tcg: code_bitmap is not used by user-mode emulation Paolo Bonzini
2015-08-28 14:57   ` Peter Maydell
2015-08-29  7:13     ` Paolo Bonzini
2015-08-12 16:40 ` [Qemu-devel] [PATCH 07/10] tcg: comment on which functions have to be called with mmap_lock held Paolo Bonzini
2015-08-28 15:33   ` Peter Maydell
2015-08-29  6:57     ` Paolo Bonzini
2015-08-12 16:41 ` [Qemu-devel] [PATCH 08/10] tcg: add memory barriers in page_find_alloc accesses Paolo Bonzini
2015-08-12 20:37   ` Emilio G. Cota
2015-08-13  8:13     ` Paolo Bonzini
2015-08-13 19:50       ` Emilio G. Cota
2015-08-28 15:40   ` Peter Maydell
2015-08-29  6:58     ` Paolo Bonzini
2015-08-12 16:41 ` [Qemu-devel] [PATCH 09/10] exec: make mmap_lock/mmap_unlock globally available Paolo Bonzini
2015-08-28 15:42   ` Peter Maydell
2015-08-12 16:41 ` [Qemu-devel] [PATCH 10/10] cpu-exec: fix lock hierarchy for user-mode emulation Paolo Bonzini
2015-08-28 15:59   ` Peter Maydell
2015-08-12 16:41 ` [Qemu-devel] [PATCH 11/10] tcg: comment on which functions have to be called with tb_lock held Paolo Bonzini
2015-08-13 12:51   ` Frederic Konrad
2015-08-13 12:59     ` Paolo Bonzini
2015-08-13 13:32       ` Frederic Konrad
2015-08-13 14:39         ` Paolo Bonzini
2015-08-13 15:32           ` Peter Maydell
2015-08-13 16:20             ` Paolo Bonzini
2015-08-12 16:41 ` [Qemu-devel] [PATCH 12/10] tcg: protect TBContext with tb_lock Paolo Bonzini
2015-08-13 12:57   ` Frederic Konrad
2015-08-13 13:01     ` Paolo Bonzini
2015-08-13 13:04       ` Frederic Konrad
2015-08-14  9:26 ` [Qemu-devel] [PATCH 00/10] translate-all.c thread-safety Frederic Konrad

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