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SubjectRe: [RFC PATCH 4/6] iommu/arm-smmu-v3: Add SVM support for platform devices
On 2017/9/5 20:53, Jean-Philippe Brucker wrote:
> On 31/08/17 09:20, Yisheng Xie wrote:
>> From: Jean-Philippe Brucker <>
>> Platform device can realise SVM function by using the stall mode. That
>> is to say, when device access a memory via iova which is not populated,
>> it will stalled and when SMMU try to translate this iova, it also will
>> stall and meanwhile send an event to CPU via MSI.
>> After SMMU driver handle the event and populated the iova, it will send
>> a RESUME command to SMMU to exit the stall mode, therefore the platform
>> device can contiue access the memory.
>> Signed-off-by: Jean-Philippe Brucker <>
> No. Please don't forge a signed-off-by under a commit message you wrote,

Really sorry for that.
We sent out the wrong version, I should take more careful review.


> it's rude. I didn't sign it, didn't consider it fit for mainline or even
> as an RFC, and wanted to have another read before sending. My mistake,
> I'll think twice before sharing prototypes in the future.
> Thanks,
> Jean

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