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From: Jiahuan Zhang <jiahuanzhang90@gmail.com>
To: G 3 <programmingkidx@gmail.com>
Cc: qemu-devel qemu-devel <qemu-devel@nongnu.org>
Subject: Re: [Qemu-devel] is qemu able to run multiple system emulation simultaneously
Date: Fri, 7 Apr 2017 08:26:55 +0200	[thread overview]
Message-ID: <CAJy91CaTPoUVHYSKAqM=svr3E=JPr-3pYYGRW72Fr-XuS0RTNQ@mail.gmail.com> (raw)
In-Reply-To: <3F8ADDFA-7686-416B-A63A-4C59EC99DDC6@gmail.com>

On 6 April 2017 at 19:58, G 3 <programmingkidx@gmail.com> wrote:

>
> On Apr 6, 2017, at 12:00 PM, qemu-devel-request@nongnu.org wrote:
>
> Dear QEMU developers,
>>
>> I need multiple ARM-based hardware emulation runing simultaneously in one
>> PC.
>> I wander if QEMU is capble to run two system emulation at the same time.
>> Or I have to use two QEMU for two system emulation
>>
>> If the former is possible, where can i find some docs about it? I have
>> searched two days, the result is not positive.
>>
>> Please help. Thanks in advance.
>>
>> Best regards,
>> Jiahuan
>>
>
> My vote goes to running multiple instances of QEMU at the same time. It is
> easy to do and works.
>

As for as I know, "running multiple instances of QEMU at the same time" is
feasible for user-mode emulation, namely emulting CPU, according to
https://en.wikipedia.org/wiki/QEMU.
Wikipedia says
"Virtualization solutions that use QEMU are able to execute multiple
virtual CPUs in parallel. QEMU is also able to run multiple threads in
user-mode emulation mode.

For full system emulation, QEMU uses a single thread to emulate all the
virtual CPUs and hardware. "
However, what I need is system emulation, an ARM processor with various
periphrals.

I think Peter is right.

  reply	other threads:[~2017-04-07  6:26 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.167.1491494426.906.qemu-devel@nongnu.org>
2017-04-06 17:58 ` [Qemu-devel] is qemu able to run multiple system emulation simultaneously G 3
2017-04-07  6:26   ` Jiahuan Zhang [this message]
2017-04-07  7:08     ` Jiahuan Zhang
2017-04-07 13:04       ` G 3
2017-04-06 15:47 Jiahuan Zhang
2017-04-06 16:20 ` Peter Maydell

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