linux-kernel - Re: [RFT][PATCH v1 1/6] vfio/ap: Pass in physical address of ind to ap

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Date:   Tue, 21 Jun 2022 14:01:08 -0700
From:   Nicolin Chen <nicolinc@...dia.com>
To:     Harald Freudenberger <freude@...ux.ibm.com>
CC:     <kwankhede@...dia.com>, <corbet@....net>, <hca@...ux.ibm.com>,
        <gor@...ux.ibm.com>, <agordeev@...ux.ibm.com>,
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Subject: Re: [RFT][PATCH v1 1/6] vfio/ap: Pass in physical address of ind to
 ap_aqic()

On Mon, Jun 20, 2022 at 12:00:53PM +0200, Harald Freudenberger wrote:
> External email: Use caution opening links or attachments
> 
> 
> On 2022-06-17 01:52, Nicolin Chen wrote:
> > The ap_aqic() is called by vfio_ap_irq_enable() where it passes in a
> > virt value that's casted from a physical address "h_nib". Inside the
> > ap_aqic(), it does virt_to_phys() again.
> > 
> > Since ap_aqic() needs a physical address, let's just pass in a pa of
> > ind directly. So change the "ind" to "pa_ind".
> > 
> > Signed-off-by: Nicolin Chen <nicolinc@...dia.com>

> Add my Reviewed-By: Harald Freudenberger <freude@...ux.ibm.com>

Will do. Thanks!