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SubjectRe: [PATCH v6 net-next] vmxnet3: Remove buf_info from device accessible structures
On Thu, 28 Jan 2021 11:38:34 -0800 Ronak Doshi wrote:
> buf_info structures in RX & TX queues are private driver data that
> do not need to be visible to the device. Although there is physical
> address and length in the queue descriptor that points to these
> structures, their layout is not standardized, and device never looks
> at them.
> So lets allocate these structures in non-DMA-able memory, and fill
> physical address as all-ones and length as zero in the queue
> descriptor.
> That should alleviate worries brought by Martin Radev in
> that malicious vmxnet3 device could subvert SVM/TDX guarantees.
> Signed-off-by: Petr Vandrovec <>
> Signed-off-by: Ronak Doshi <>

Applied, thanks!

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