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From: Pawel Moll <pawel.moll@arm.com>
To: Paul Brook <paul@codesourcery.com>
Cc: Peter Maydell <peter.maydell@linaro.org>,
	"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
	"virtualization@lists.linux-foundation.org"
	<virtualization@lists.linux-foundation.org>,
	Anthony Liguori <anthony@codemonkey.ws>,
	Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] [RFC 0/4] virtio-mmio transport
Date: Mon, 12 Dec 2011 14:51:31 +0000	[thread overview]
Message-ID: <1323701491.2391.73.camel@hornet.cambridge.arm.com> (raw)
In-Reply-To: <201112121445.27873.paul@codesourcery.com>

On Mon, 2011-12-12 at 14:45 +0000, Paul Brook wrote:
> I suggest that the device to buffer writes to the high part, and construct the 
> actual 64-bit value when the low part is written.  That allows 32-bit guests 
> can ignore the high part entirely.

This sounds good to me. If we define the reset value of both registers
as 0 (which is consistent with "0 = stop" condition) a 32-bit guest will
be able to behave as you are suggesting.

Cool, I will keep this in mind.

Thanks!

Paweł


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  parent reply	other threads:[~2011-12-12 14:51 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1321282528-19070-1-git-send-email-peter.maydell@linaro.org>
     [not found] ` <201112091516.07644.paul@codesourcery.com>
     [not found]   ` <4EE22FF4.5050903@codemonkey.ws>
     [not found]     ` <201112120252.35295.paul@codesourcery.com>
2011-12-12 11:16       ` [Qemu-devel] [RFC 0/4] virtio-mmio transport Pawel Moll
2011-12-12 14:45         ` Paul Brook
     [not found]         ` <201112121445.27873.paul@codesourcery.com>
2011-12-12 14:51           ` Pawel Moll [this message]
2011-12-16  5:36           ` Rusty Russell

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