From: Leon Romanovsky <leon@kernel.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: tglx@linutronix.de, ashok.raj@intel.com, kevin.tian@intel.com,
dave.jiang@intel.com, megha.dey@intel.com, dwmw2@infradead.org,
alex.williamson@redhat.com, bhelgaas@google.com,
dan.j.williams@intel.com, will@kernel.org, joro@8bytes.org,
dmaengine@vger.kernel.org, eric.auger@redhat.com,
jacob.jun.pan@intel.com, jgg@mellanox.com, kvm@vger.kernel.org,
kwankhede@nvidia.com, linux-kernel@vger.kernel.org,
linux-pci@vger.kernel.org, iommu@lists.linux-foundation.org,
maz@kernel.org, mona.hossain@intel.com, netanelg@mellanox.com,
parav@mellanox.com, pbonzini@redhat.com, rafael@kernel.org,
samuel.ortiz@intel.com, sanjay.k.kumar@intel.com,
shahafs@mellanox.com, tony.luck@intel.com, vkoul@kernel.org,
yan.y.zhao@linux.intel.com, yi.l.liu@intel.com
Subject: Re: [RFC PATCH v3 1/2] iommu: Add capability IOMMU_CAP_VIOMMU
Date: Fri, 15 Jan 2021 08:31:08 +0200 [thread overview]
Message-ID: <20210115063108.GI944463@unreal> (raw)
In-Reply-To: <b0c8b260-8e23-a5bd-d2da-ca1d67cdfa8a@linux.intel.com>
On Fri, Jan 15, 2021 at 07:49:47AM +0800, Lu Baolu wrote:
> Hi Leon,
>
> On 1/14/21 9:26 PM, Leon Romanovsky wrote:
> > On Thu, Jan 14, 2021 at 09:30:02AM +0800, Lu Baolu wrote:
> > > Some vendor IOMMU drivers are able to declare that it is running in a VM
> > > context. This is very valuable for the features that only want to be
> > > supported on bare metal. Add a capability bit so that it could be used.
> >
> > And how is it used? Who and how will set it?
>
> Use the existing iommu_capable(). I should add more descriptions about
> who and how to use it.
I want to see the code that sets this capability.
Thanks
next prev parent reply other threads:[~2021-01-15 6:32 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-14 1:30 [RFC PATCH v3 0/2] Add platform check for subdevice irq domain Lu Baolu
2021-01-14 1:30 ` [RFC PATCH v3 1/2] iommu: Add capability IOMMU_CAP_VIOMMU Lu Baolu
2021-01-14 13:26 ` Leon Romanovsky
2021-01-14 23:49 ` Lu Baolu
2021-01-15 6:31 ` Leon Romanovsky [this message]
2021-01-16 1:20 ` Lu Baolu
2021-01-16 8:39 ` Leon Romanovsky
2021-01-16 8:47 ` Lu Baolu
2021-01-17 5:30 ` Leon Romanovsky
2021-01-15 4:46 ` Jason Wang
2021-01-14 1:30 ` [RFC PATCH v3 2/2] platform-msi: Add platform check for subdevice irq domain Lu Baolu
2021-01-14 3:03 ` Tian, Kevin
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