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From: Paolo Bonzini <pbonzini@redhat.com>
To: Stefan Hajnoczi <stefanha@gmail.com>, sfeldma@gmail.com
Cc: jiri@resnulli.us, roopa@cumulusnetworks.com,
	john.fastabend@gmail.com, qemu-devel@nongnu.org,
	dsahern@gmail.com, jasowang@redhat.com
Subject: Re: [Qemu-devel] [PATCH v5 03/10] rocker: add register programming guide
Date: Tue, 03 Feb 2015 12:08:33 +0100	[thread overview]
Message-ID: <54D0AC31.2050209@redhat.com> (raw)
In-Reply-To: <20150202161912.GB10862@stefanha-thinkpad>

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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!

Paolo
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  reply	other threads:[~2015-02-03 11:08 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 [this message]
2015-02-05 10:45       ` Stefan Hajnoczi
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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