linux-kernel - Re: [PATCH v4 3/6] iommu/sva: Stop using ioasid

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Message-ID: <20230302085751.1e7f02bd@jacob-builder>
Date:   Thu, 2 Mar 2023 08:57:51 -0800
From:   Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:     "Tian, Kevin" <kevin.tian@...el.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
        Jason Gunthorpe <jgg@...dia.com>,
        Lu Baolu <baolu.lu@...ux.intel.com>,
        Joerg Roedel <joro@...tes.org>,
        "Jean-Philippe Brucker" <jean-philippe@...aro.com>,
        "Hansen, Dave" <dave.hansen@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        X86 Kernel <x86@...nel.org>, "bp@...en8.de" <bp@...en8.de>,
        "H. Peter Anvin" <hpa@...or.com>,
        "Peter Zijlstra" <peterz@...radead.org>,
        "corbet@....net" <corbet@....net>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "dmaengine@...r.kernel.org" <dmaengine@...r.kernel.org>,
        "linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
        Robin Murphy <robin.murphy@....com>,
        Will Deacon <will@...nel.org>,
        "David Woodhouse" <dwmw2@...radead.org>,
        "Raj, Ashok" <ashok.raj@...el.com>,
        "Liu, Yi L" <yi.l.liu@...el.com>,
        "Yu, Fenghua" <fenghua.yu@...el.com>,
        "Jiang, Dave" <dave.jiang@...el.com>,
        Kirill Shutemov <kirill.shutemov@...ux.intel.com>,
        jacob.jun.pan@...ux.intel.com
Subject: Re: [PATCH v4 3/6] iommu/sva: Stop using ioasid_set for SVA

Hi Kevin,

On Thu, 2 Mar 2023 08:58:21 +0000, "Tian, Kevin" <kevin.tian@...el.com>
wrote:

> > From: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> > Sent: Thursday, March 2, 2023 7:57 AM
> > 
> > 
> > -	if (min == INVALID_IOASID || max == INVALID_IOASID ||
> > +	if (min == IOMMU_PASID_INVALID || max ==
> > IOMMU_PASID_INVALID ||
> >  	    min == 0 || max < min)
> >  		return -EINVAL;
> >   
> 
> if (!pasid_valid(min) || !pasid_valid(max) || ...)
> 
will do
> with that,
> 
> Reviewed-by: Kevin Tian <kevin.tian@...el.com>
> 


Thanks,

Jacob