linux-kernel - Re: [PATCH] vfio/iommu_type1: report the IOMMU aperture info

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Message-Id: <3764d829-2e88-d100-191e-98bf8dac3bfc@linux.vnet.ibm.com>
Date:   Fri, 1 Dec 2017 09:50:11 +0100
From:   Pierre Morel <pmorel@...ux.vnet.ibm.com>
To:     Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>
Cc:     "cohuck@...hat.com" <cohuck@...hat.com>,
        "borntraeger@...ibm.com" <borntraeger@...ibm.com>,
        "zyimin@...ux.vnet.ibm.com" <zyimin@...ux.vnet.ibm.com>,
        "pasic@...ux.vnet.ibm.com" <pasic@...ux.vnet.ibm.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] vfio/iommu_type1: report the IOMMU aperture info

On 30/11/2017 16:23, Jean-Philippe Brucker wrote:
> On 30/11/17 14:49, Pierre Morel wrote:
> [...]
>> Shouldn't the 52bit problem be reported by the iommu geometry?
> 
> Yes, and most IOMMUs seem to set force_aperture. My comment was only about
> default values to adopt in case a new IOMMU driver doesn't set
> force_aperture to true.
> 
> Thanks,
> Jean
> 

Yes, clear, thanks.

Pierre

-- 
Pierre Morel
Linux/KVM/QEMU in Böblingen - Germany