The 9p-virtio transport does zero copy on things larger than 1024 bytes
in size. It accomplishes this by returning the physical addresses of
pages to the virtio-pci device. At present, the translation is usually a
bit shift.
That approach produces an invalid page address when we read/write to
vmal
On Jan 30, 2014, at 7:44 PM, David Miller wrote:
> From: David Miller
> Date: Thu, 30 Jan 2014 16:29:26 -0800 (PST)
>
>> From: Richard Yao
>> Date: Thu, 30 Jan 2014 13:02:48 -0500
>>
>>> The 9p-virtio transport does zero copy on things larger than 1024 bytes
>>> in size. It accomplishes this
From: David Miller
Date: Thu, 30 Jan 2014 16:29:26 -0800 (PST)
> From: Richard Yao
> Date: Thu, 30 Jan 2014 13:02:48 -0500
>
>> The 9p-virtio transport does zero copy on things larger than 1024 bytes
>> in size. It accomplishes this by returning the physical addresses of
>> pages to the virtio-
From: Richard Yao
Date: Thu, 30 Jan 2014 13:02:48 -0500
> The 9p-virtio transport does zero copy on things larger than 1024 bytes
> in size. It accomplishes this by returning the physical addresses of
> pages to the virtio-pci device. At present, the translation is usually a
> bit shift.
>
> How
The 9p-virtio transport does zero copy on things larger than 1024 bytes
in size. It accomplishes this by returning the physical addresses of
pages to the virtio-pci device. At present, the translation is usually a
bit shift.
However, that approach produces an invalid page address when we
read/writ
This is my first real patch submission, which I sent out in December.
Unfortunately, I sent it to only a subset of the correct people. Time passed,
Greg Koah-Hartman was kind enough to give me some pointers and I am now sending
it back out to the correct people. My apologies to anyone who was bit b
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