From: Richard Henderson <rth@twiddle.net>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: Stefan Hajnoczi <stefanha@gmail.com>,
"rusty@rustcorp.com.au" <rusty@rustcorp.com.au>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
Stefan Hajnoczi <stefanha@redhat.com>,
"H. Peter Anvin" <hpa@zytor.com>,
"Xie, Huawei" <huawei.xie@intel.com>,
Laszlo Ersek <lersek@redhat.com>
Subject: Re: [Qemu-devel] Would virtio support 64 bit address for vring virtqueue?
Date: Wed, 28 Aug 2013 14:38:28 -0700 [thread overview]
Message-ID: <521E6DD4.4000206@twiddle.net> (raw)
In-Reply-To: <CA+aC4kseC3_Wq1_9rE=ntkCwur1ZqSJc9+xm1a2zrbOT2Rn23Q@mail.gmail.com>
On 08/28/2013 02:28 PM, Anthony Liguori wrote:
> Ack. Although I wonder if there is a device out there that actually
> expects 64-bit writes to a register in an PIO region...
If IBM makes any custom hardware that sits off a PCI bus, that's where I'd
expect to find such these days. I know DEC had 64-bit pio for some of its
custom video and scsi controllers.
Not that I expect we'll ever bother emulating any of that hw in qemu...
r~
next prev parent reply other threads:[~2013-08-28 21:38 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-28 3:18 [Qemu-devel] Would virtio support 64 bit address for vring virtqueue? Xie, Huawei
2013-08-28 8:07 ` Stefan Hajnoczi
2013-08-28 9:22 ` Xie, Huawei
2013-08-28 11:45 ` Laszlo Ersek
2013-08-28 12:20 ` Christian Borntraeger
2013-08-28 15:30 ` Xie, Huawei
2013-08-28 17:35 ` Anthony Liguori
2013-08-28 21:02 ` H. Peter Anvin
2013-08-28 21:28 ` Anthony Liguori
2013-08-28 21:38 ` Richard Henderson [this message]
2013-08-28 10:16 ` Xie, Huawei
2013-09-04 6:52 ` Rusty Russell
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