From: Jason Gunthorpe <jgg@nvidia.com>
To: Xu Yilun <yilun.xu@linux.intel.com>
Cc: Zhi Wang <zhiw@nvidia.com>, Alexey Kardashevskiy <aik@amd.com>,
kvm@vger.kernel.org, dri-devel@lists.freedesktop.org,
linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org,
sumit.semwal@linaro.org, christian.koenig@amd.com,
pbonzini@redhat.com, seanjc@google.com,
alex.williamson@redhat.com, vivek.kasireddy@intel.com,
dan.j.williams@intel.com, yilun.xu@intel.com,
linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org,
lukas@wunner.de, yan.y.zhao@intel.com, daniel.vetter@ffwll.ch,
leon@kernel.org, baolu.lu@linux.intel.com,
zhenzhong.duan@intel.com, tao1.su@intel.com
Subject: Re: [RFC PATCH 00/12] Private MMIO support for private assigned dev
Date: Fri, 16 May 2025 09:49:53 -0300 [thread overview]
Message-ID: <20250516124953.GD613512@nvidia.com> (raw)
In-Reply-To: <aCbZATrK7EPyH4qt@yilunxu-OptiPlex-7050>
On Fri, May 16, 2025 at 02:19:45PM +0800, Xu Yilun wrote:
> > I don't know why you'd disable a viommu while the VM is running,
> > doesn't make sense.
>
> Here it means remove the CC setup for viommu, shared setup is still
> kept.
That might makes sense for the vPCI function, but not the vIOMMU. A
secure VIOMMU needs to be running at all times while the guest is
running. Perhaps it has no devices it can be used with, but it's
functionality has to be there because a driver in the VM will be
connected to it.
At most "bind" should only tell the already existing secure vIOMMU
that it is allowed to translate for a specific vPCI function.
Jason
next prev parent reply other threads:[~2025-05-16 12:49 UTC|newest]
Thread overview: 134+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-07 14:27 [RFC PATCH 00/12] Private MMIO support for private assigned dev Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 01/12] dma-buf: Introduce dma_buf_get_pfn_unlocked() kAPI Xu Yilun
2025-01-08 8:01 ` Christian König
2025-01-08 13:23 ` Jason Gunthorpe
2025-01-08 13:44 ` Christian König
2025-01-08 14:58 ` Jason Gunthorpe
2025-01-08 15:25 ` Christian König
2025-01-08 16:22 ` Jason Gunthorpe
2025-01-08 17:56 ` Xu Yilun
2025-01-10 19:24 ` Simona Vetter
2025-01-10 20:16 ` Jason Gunthorpe
2025-01-08 18:44 ` Simona Vetter
2025-01-08 19:22 ` Xu Yilun
[not found] ` <58e97916-e6fd-41ef-84b4-bbf53ed0e8e4@amd.com>
2025-01-08 23:06 ` Xu Yilun
2025-01-10 19:34 ` Simona Vetter
2025-01-10 20:38 ` Jason Gunthorpe
2025-01-12 22:10 ` Xu Yilun
2025-01-14 14:44 ` Simona Vetter
2025-01-14 17:31 ` Jason Gunthorpe
2025-01-15 8:55 ` Simona Vetter
2025-01-15 9:32 ` Christoph Hellwig
2025-01-15 13:34 ` Jason Gunthorpe
2025-01-16 5:33 ` Christoph Hellwig
2024-06-19 23:39 ` Xu Yilun
2025-01-16 13:28 ` Jason Gunthorpe
[not found] ` <420bd2ea-d87c-4f01-883e-a7a5cf1635fe@amd.com>
2025-01-17 14:42 ` Simona Vetter
2025-01-20 12:14 ` Christian König
2025-01-20 17:59 ` Jason Gunthorpe
2025-01-20 18:50 ` Simona Vetter
2025-01-20 19:48 ` Jason Gunthorpe
2025-01-21 16:11 ` Simona Vetter
2025-01-21 17:36 ` Jason Gunthorpe
2025-01-22 11:04 ` Simona Vetter
2025-01-22 13:28 ` Jason Gunthorpe
2025-01-22 13:29 ` Christian König
2025-01-22 14:37 ` Jason Gunthorpe
2025-01-22 14:59 ` Christian König
2025-01-23 13:59 ` Jason Gunthorpe
[not found] ` <9a36fba5-2dee-46fd-9f51-47c5f0ffc1d4@amd.com>
2025-01-23 14:35 ` Christian König
2025-01-23 15:02 ` Jason Gunthorpe
[not found] ` <89f46c7f-a585-44e2-963d-bf00bf09b493@amd.com>
2025-01-23 16:08 ` Jason Gunthorpe
2025-01-09 8:09 ` Christian König
2025-01-10 20:54 ` Jason Gunthorpe
2025-01-15 9:38 ` Christian König
2025-01-15 13:38 ` Jason Gunthorpe
[not found] ` <f6c2524f-5ef5-4c2c-a464-a7b195e0bf6c@amd.com>
2025-01-15 13:46 ` Christian König
2025-01-15 14:14 ` Jason Gunthorpe
[not found] ` <c86cfee1-063a-4972-a343-ea0eff2141c9@amd.com>
2025-01-15 14:30 ` Christian König
2025-01-15 15:10 ` Jason Gunthorpe
[not found] ` <6f7a14aa-f607-45f9-9e15-759e26079dec@amd.com>
2025-01-15 17:09 ` Jason Gunthorpe
[not found] ` <5f588dac-d3e2-445d-9389-067b875412dc@amd.com>
2024-06-20 22:02 ` Xu Yilun
2025-01-20 13:44 ` Christian König
2025-01-22 4:16 ` Xu Yilun
2025-01-16 16:07 ` Jason Gunthorpe
2025-01-17 14:37 ` Simona Vetter
[not found] ` <0e7f92bd-7da3-4328-9081-0957b3d155ca@amd.com>
2025-01-09 9:28 ` Leon Romanovsky
2025-01-07 14:27 ` [RFC PATCH 02/12] vfio: Export vfio device get and put registration helpers Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 03/12] vfio/pci: Share the core device pointer while invoking feature functions Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 04/12] vfio/pci: Allow MMIO regions to be exported through dma-buf Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 05/12] vfio/pci: Support get_pfn() callback for dma-buf Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 06/12] KVM: Support vfio_dmabuf backed MMIO region Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 07/12] KVM: x86/mmu: Handle page fault for vfio_dmabuf backed MMIO Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 08/12] vfio/pci: Create host unaccessible dma-buf for private device Xu Yilun
2025-01-08 13:30 ` Jason Gunthorpe
2025-01-08 16:57 ` Xu Yilun
2025-01-09 14:40 ` Jason Gunthorpe
2025-01-09 16:40 ` Xu Yilun
2025-01-10 13:31 ` Jason Gunthorpe
2025-01-11 3:48 ` Xu Yilun
2025-01-13 16:49 ` Jason Gunthorpe
2024-06-17 23:28 ` Xu Yilun
2025-01-14 13:35 ` Jason Gunthorpe
2025-01-15 12:57 ` Alexey Kardashevskiy
2025-01-15 13:01 ` Jason Gunthorpe
2025-01-17 1:57 ` Baolu Lu
2025-01-17 13:25 ` Jason Gunthorpe
2024-06-23 19:59 ` Xu Yilun
2025-01-20 13:25 ` Jason Gunthorpe
2024-06-24 21:12 ` Xu Yilun
2025-01-21 17:43 ` Jason Gunthorpe
2025-01-22 4:32 ` Xu Yilun
2025-01-22 12:55 ` Jason Gunthorpe
2025-01-23 7:41 ` Xu Yilun
2025-01-23 13:08 ` Jason Gunthorpe
2025-01-20 4:41 ` Baolu Lu
2025-01-20 9:45 ` Alexey Kardashevskiy
2025-01-20 13:28 ` Jason Gunthorpe
2025-03-12 1:37 ` Dan Williams
2025-03-17 16:38 ` Jason Gunthorpe
2025-01-07 14:27 ` [RFC PATCH 09/12] vfio/pci: Export vfio dma-buf specific info for importers Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 10/12] KVM: vfio_dmabuf: Fetch VFIO specific dma-buf data for sanity check Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 11/12] KVM: x86/mmu: Export kvm_is_mmio_pfn() Xu Yilun
2025-01-07 14:27 ` [RFC PATCH 12/12] KVM: TDX: Implement TDX specific private MMIO map/unmap for SEPT Xu Yilun
2025-04-29 6:48 ` [RFC PATCH 00/12] Private MMIO support for private assigned dev Alexey Kardashevskiy
2025-04-29 7:50 ` Alexey Kardashevskiy
2025-05-09 3:04 ` Alexey Kardashevskiy
2025-05-09 11:12 ` Xu Yilun
2025-05-09 16:28 ` Xu Yilun
2025-05-09 18:43 ` Jason Gunthorpe
2025-05-10 3:47 ` Xu Yilun
2025-05-12 9:30 ` Alexey Kardashevskiy
2025-05-12 14:06 ` Jason Gunthorpe
2025-05-13 10:03 ` Zhi Wang
2025-05-14 9:47 ` Xu Yilun
2025-05-14 20:05 ` Zhi Wang
2025-05-15 18:02 ` Xu Yilun
2025-05-15 19:21 ` Jason Gunthorpe
2025-05-16 6:19 ` Xu Yilun
2025-05-16 12:49 ` Jason Gunthorpe [this message]
2025-05-17 2:33 ` Xu Yilun
2025-05-20 10:57 ` Alexey Kardashevskiy
2025-05-24 3:33 ` Xu Yilun
2025-05-15 10:29 ` Alexey Kardashevskiy
2025-05-15 16:44 ` Zhi Wang
2025-05-15 16:53 ` Zhi Wang
2025-05-21 10:41 ` Alexey Kardashevskiy
2025-05-14 7:02 ` Xu Yilun
2025-05-14 16:33 ` Jason Gunthorpe
2025-05-15 16:04 ` Xu Yilun
2025-05-15 17:56 ` Jason Gunthorpe
2025-05-16 6:03 ` Xu Yilun
2025-05-22 3:45 ` Alexey Kardashevskiy
2025-05-24 3:13 ` Xu Yilun
2025-05-26 7:18 ` Alexey Kardashevskiy
2025-05-29 14:41 ` Xu Yilun
2025-05-29 16:29 ` Jason Gunthorpe
2025-05-30 16:07 ` Xu Yilun
2025-05-30 2:29 ` Alexey Kardashevskiy
2025-05-30 16:23 ` Xu Yilun
2025-06-10 4:20 ` Alexey Kardashevskiy
2025-06-10 5:19 ` Baolu Lu
2025-06-10 6:53 ` Xu Yilun
2025-05-14 3:20 ` Xu Yilun
2025-06-10 4:37 ` Alexey Kardashevskiy
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250516124953.GD613512@nvidia.com \
--to=jgg@nvidia.com \
--cc=aik@amd.com \
--cc=alex.williamson@redhat.com \
--cc=baolu.lu@linux.intel.com \
--cc=christian.koenig@amd.com \
--cc=dan.j.williams@intel.com \
--cc=daniel.vetter@ffwll.ch \
--cc=dri-devel@lists.freedesktop.org \
--cc=kvm@vger.kernel.org \
--cc=leon@kernel.org \
--cc=linaro-mm-sig@lists.linaro.org \
--cc=linux-coco@lists.linux.dev \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=lukas@wunner.de \
--cc=pbonzini@redhat.com \
--cc=seanjc@google.com \
--cc=sumit.semwal@linaro.org \
--cc=tao1.su@intel.com \
--cc=vivek.kasireddy@intel.com \
--cc=yan.y.zhao@intel.com \
--cc=yilun.xu@intel.com \
--cc=yilun.xu@linux.intel.com \
--cc=zhenzhong.duan@intel.com \
--cc=zhiw@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).