> -Original Message-
> From: Auger Eric [mailto:eric.au...@redhat.com]
> Sent: 21 February 2021 18:21
> To: Shameerali Kolothum Thodi ;
> eric.auger@gmail.com; iommu@lists.linux-foundation.org;
> linux-ker...@vger.kernel.org; k...@vger.kernel.org;
> kvm...@lists.cs.columbia.edu; w...@
On Mon, 22 Feb 2021, Christoph Hellwig wrote:
> > I haven't booted Linux on my Malta for a while now, but it turns out to
> > work just fine, and your patch set does not regress it booting multi-user
> > NFS-rooted over FDDI.
> >
> > I note however that the system does not reboot properly:
> >
Hi Keqian,
On 2/2/21 1:34 PM, Keqian Zhu wrote:
> Hi Eric,
>
> On 2020/11/16 19:00, Eric Auger wrote:
>> From: "Liu, Yi L"
>>
>> This patch adds an VFIO_IOMMU_SET_PASID_TABLE ioctl
>> which aims to pass the virtual iommu guest configuration
>> to the host. This latter takes the form of the so-ca
Hi Eric,
On 2021/2/22 18:53, Auger Eric wrote:
> Hi Keqian,
>
> On 2/2/21 1:34 PM, Keqian Zhu wrote:
>> Hi Eric,
>>
>> On 2020/11/16 19:00, Eric Auger wrote:
>>> From: "Liu, Yi L"
>>>
>>> This patch adds an VFIO_IOMMU_SET_PASID_TABLE ioctl
>>> which aims to pass the virtual iommu guest configura
On 18/02/2021 22:07, Nicolin Chen wrote:
> Commit 25938c73cd79 ("iommu/tegra-smmu: Rework tegra_smmu_probe_device()")
> removed certain hack in the tegra_smmu_probe() by relying on IOMMU core to
> of_xlate SMMU's SID per device, so as to get rid of tegra_smmu_find() and
> tegra_smmu_configure() tha
On an ARM64 system with a SMMUv3 implementation that fully supports
Broadcast TLB Maintenance(BTM) feature as part of the Distributed
Virtual Memory(DVM) protocol, the CPU TLB invalidate instructions are
received by SMMUv3. This is very useful when the SMMUv3 shares the
page tables with the CPU(eg:
A device that belongs to vfio_group has the kvm instance associated
with it. Retrieve it.
Signed-off-by: Shameer Kolothum
---
drivers/vfio/vfio.c | 12
include/linux/vfio.h | 1 +
2 files changed, 13 insertions(+)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 2151b
Provide generic helper functions to get/put pinned VMIDs if the arch
supports it.
Signed-off-by: Shameer Kolothum
---
include/linux/kvm_host.h | 17 +
virt/kvm/Kconfig | 2 ++
virt/kvm/kvm_main.c | 25 +
3 files changed, 44 insertions(+)
dif
If the SMMU supports BTM and the device belongs to NESTED domain
with shared pasid table, we need to use the VMID allocated by the
KVM for the s2 configuration. Hence, request a pinned VMID from KVM.
Signed-off-by: Shameer Kolothum
---
drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 49 +++
Since the pinned VMID space is not recycled, we need to make sure that
we release the vmid back into the pool when we are done with it.
Signed-off-by: Shameer Kolothum
---
arch/arm64/kvm/arm.c | 12 ++--
1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/arch/arm64/kvm/arm.c
On an ARM64 system with a SMMUv3 implementation that fully supports
Broadcast TLB Maintenance(BTM) feature, the CPU TLB invalidate
instructions are received by SMMU. This is very useful when the
SMMU shares the page tables with the CPU(eg: Guest SVA use case).
For this to work, the SMMU must use th
Hi Keqian,
On 2/22/21 1:20 PM, Keqian Zhu wrote:
> Hi Eric,
>
> On 2021/2/22 18:53, Auger Eric wrote:
>> Hi Keqian,
>>
>> On 2/2/21 1:34 PM, Keqian Zhu wrote:
>>> Hi Eric,
>>>
>>> On 2020/11/16 19:00, Eric Auger wrote:
From: "Liu, Yi L"
This patch adds an VFIO_IOMMU_SET_PASID_TABL
Hi Linus,
The following changes since commit 92bf22614b21a2706f4993b278017e437f7785b3:
Linux 5.11-rc7 (2021-02-07 13:57:38 -0800)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
tags/iommu-updates-v5.12
for you to fetch changes up to 45
Hi Lu,
On Sat, 20 Feb 2021 09:56:26 +0800, Lu Baolu
wrote:
> Hi Jacob and Sanjay,
>
> On 2/19/21 5:31 AM, Jacob Pan wrote:
> > Write protect bit, when set, inhibits supervisor writes to the read-only
> > pages. In supervisor shared virtual addressing (SVA), where page tables
> > are shared betw
Hi Kevin,
On Sat, 20 Feb 2021 02:38:02 +, "Tian, Kevin"
wrote:
> > From: Jacob Pan
> > Sent: Saturday, February 20, 2021 1:09 AM
> >
> > Hi Kevin,
> >
> > On Fri, 19 Feb 2021 06:19:04 +, "Tian, Kevin"
> > wrote:
> >
> > > > From: Jacob Pan
> > > > Sent: Friday, February 19, 2021
This fix has been accepted in the upstream recently.
https://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git/commit/?h=x86/amd
Could you please give this a try?
Thanks,
Suravee
On 2/21/21 8:49 PM, Paul Menzel wrote:
Dear Suravee,
Am 17.09.20 um 19:55 schrieb Alexander Monakov:
On Tu
The pull request you sent on Mon, 22 Feb 2021 17:17:35 +0100:
> git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
> tags/iommu-updates-v5.12
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/d652ea30ba32db12fe8365182fad5ba2e7c22822
Thank you!
--
Deet-doot-d
Hi Christoph,
On Sun, 2021-02-07 at 17:03 +0100, Christoph Hellwig wrote:
> Split out a bunch of a self-contained helpers to make the function easier
> to follow.
>
> Signed-off-by: Christoph Hellwig
> ---
> kernel/dma/swiotlb.c | 179 +--
> 1 file change
> > +static int find_slots(struct device *dev, size_t alloc_size)
> > +{
> > + unsigned long boundary_mask = dma_get_seg_boundary(dev);
> > + dma_addr_t tbl_dma_addr =
> > + phys_to_dma_unencrypted(dev, io_tlb_start) & boundary_mask;
> > + unsigned int max_slots = get_max_slots(boun
On Fri, 19 Feb 2021, Konrad Rzeszutek Wilk wrote:
> On Sun, Feb 07, 2021 at 04:56:01PM +0100, Christoph Hellwig wrote:
> > On Thu, Feb 04, 2021 at 09:40:23AM +0100, Christoph Hellwig wrote:
> > > So one thing that has been on my mind for a while: I'd really like
> > > to kill the separate dma ops
Hi Dmitry,
On Sat, Feb 20, 2021 at 08:16:22AM +0300, Dmitry Osipenko wrote:
> 19.02.2021 01:07, Nicolin Chen пишет:
> > Commit 25938c73cd79 ("iommu/tegra-smmu: Rework tegra_smmu_probe_device()")
> > removed certain hack in the tegra_smmu_probe() by relying on IOMMU core to
> > of_xlate SMMU's SID
23.02.2021 05:13, Nicolin Chen пишет:
> Hi Dmitry,
>
> On Sat, Feb 20, 2021 at 08:16:22AM +0300, Dmitry Osipenko wrote:
>> 19.02.2021 01:07, Nicolin Chen пишет:
>>> Commit 25938c73cd79 ("iommu/tegra-smmu: Rework tegra_smmu_probe_device()")
>>> removed certain hack in the tegra_smmu_probe() by rely
On Mon, Feb 22, 2021 at 02:29:37PM -0500, Konrad Rzeszutek Wilk wrote:
> > 'max_slots' should be 'unsigned long' here. Breaks SWIOTLB on RPi4. Do you
> > want
> > me to send a fix or you prefer editing the patch?
>
> I can roll it in. Thx!
Thanks to both of you!
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