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Re: [Qemu-devel] [PATCH v5 03/10] rocker: add register programming guide
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH v5 03/10] rocker: add register programming guide |
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Date: |
Tue, 03 Feb 2015 12:08:33 +0100 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 |
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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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