linux-kernel - Re: [PATCH 2/2] iommu/vt-d: Remove rmrr check in domain attaching device path

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Date:   Fri, 23 Jun 2023 13:49:37 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Lu Baolu <baolu.lu@...ux.intel.com>
Cc:     Kevin Tian <kevin.tian@...el.com>, Joerg Roedel <joro@...tes.org>,
        Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Nicolin Chen <nicolinc@...dia.com>, iommu@...ts.linux.dev,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/2] iommu/vt-d: Remove rmrr check in domain attaching
 device path

On Wed, Jun 07, 2023 at 11:51:45AM +0800, Lu Baolu wrote:
> The core code now prevents devices with RMRR regions from being assigned
> to user space. There is no need to check for this condition in individual
> drivers. Remove it to avoid duplicate code.
> 
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> ---
>  drivers/iommu/intel/iommu.c | 58 -------------------------------------
>  1 file changed, 58 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@...dia.com>

I'm happy to see this leave drive code!

Jason