From: Stefan Hajnoczi <stefanha@gmail.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: jiri@resnulli.us, roopa@cumulusnetworks.com,
john.fastabend@gmail.com, qemu-devel@nongnu.org,
sfeldma@gmail.com, dsahern@gmail.com, jasowang@redhat.com
Subject: Re: [Qemu-devel] [PATCH v5 03/10] rocker: add register programming guide
Date: Thu, 5 Feb 2015 10:45:23 +0000 [thread overview]
Message-ID: <20150205104523.GA4027@stefanha-thinkpad.redhat.com> (raw)
In-Reply-To: <54D0AC31.2050209@redhat.com>
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On Tue, Feb 03, 2015 at 12:08:33PM +0100, Paolo Bonzini wrote:
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>
>
> On 02/02/2015 17:19, Stefan Hajnoczi wrote:
> > How does the CPU detect that the device has completed the reset
> > procedure? Is this supposed to be synchronous? If yes, is that a
> > good idea (i.e. hopefully resetting doesn't involve any blocking
> > operations or operations that take a long time)?
>
> Most of the time in QEMU reset is synchronous. Think of block devices
> that do bdrv_drain_all() as part of reset!
That doesn't mean we should add more cases.
Stefan
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next prev parent reply other threads:[~2015-02-05 10:45 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-22 8:03 [Qemu-devel] [PATCH v5 00/10] rocker: add new rocker ethernet switch device sfeldma
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 01/10] net: add MAC address string printer sfeldma
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 02/10] virtio-net: use qemu_mac_strdup_printf sfeldma
2015-02-03 16:19 ` Eric Blake
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 03/10] rocker: add register programming guide sfeldma
2015-02-02 16:16 ` Stefan Hajnoczi
2015-02-02 16:19 ` Stefan Hajnoczi
2015-02-03 11:08 ` Paolo Bonzini
2015-02-05 10:45 ` Stefan Hajnoczi [this message]
2015-02-05 6:29 ` Scott Feldman
2015-02-03 16:40 ` Eric Blake
2015-02-05 6:25 ` Scott Feldman
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 04/10] pci: add rocker device ID sfeldma
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 05/10] pci: add network device class 'other' for network switches sfeldma
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 06/10] rocker: add new rocker switch device sfeldma
2015-02-02 17:12 ` Stefan Hajnoczi
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 07/10] qmp: add rocker device support sfeldma
2015-02-03 15:10 ` Eric Blake
2015-02-05 6:10 ` Scott Feldman
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 08/10] rocker: add tests sfeldma
2015-02-02 16:36 ` Stefan Hajnoczi
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 09/10] MAINTAINERS: add rocker sfeldma
2015-01-22 8:03 ` [Qemu-devel] [PATCH v5 10/10] rocker: timestamp on the debug logs helps correlate with events in the VM sfeldma
2015-01-22 8:21 ` Jiri Pirko
2015-02-02 17:13 ` [Qemu-devel] [PATCH v5 00/10] rocker: add new rocker ethernet switch device Stefan Hajnoczi
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