From: Alex Williamson <alex@shazbot.org>
To: Ankit Agrawal <ankita@nvidia.com>
Cc: "jgg@ziepe.ca" <jgg@ziepe.ca>, Yishai Hadas <yishaih@nvidia.com>,
Shameer Kolothum <skolothumtho@nvidia.com>,
"kevin.tian@intel.com" <kevin.tian@intel.com>,
Aniket Agashe <aniketa@nvidia.com>,
Vikram Sethi <vsethi@nvidia.com>, Matt Ochs <mochs@nvidia.com>,
"Yunxiang.Li@amd.com" <Yunxiang.Li@amd.com>,
"yi.l.liu@intel.com" <yi.l.liu@intel.com>,
"zhangdongdong@eswincomputing.com"
<zhangdongdong@eswincomputing.com>,
Avihai Horon <avihaih@nvidia.com>,
"bhelgaas@google.com" <bhelgaas@google.com>,
"peterx@redhat.com" <peterx@redhat.com>,
"pstanner@redhat.com" <pstanner@redhat.com>,
Alistair Popple <apopple@nvidia.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Neo Jia <cjia@nvidia.com>, Kirti Wankhede <kwankhede@nvidia.com>,
"Tarun Gupta (SW-GPU)" <targupta@nvidia.com>,
Zhi Wang <zhiw@nvidia.com>, Dan Williams <danw@nvidia.com>,
Dheeraj Nigam <dnigam@nvidia.com>,
Krishnakant Jaju <kjaju@nvidia.com>
Subject: Re: [PATCH v6 5/6] vfio/nvgrace-gpu: Inform devmem unmapped after reset
Date: Tue, 25 Nov 2025 21:54:04 -0700 [thread overview]
Message-ID: <20251125215404.14c969be@shazbot.org> (raw)
In-Reply-To: <SA1PR12MB7199DF7032D570B5C610FD60B0DEA@SA1PR12MB7199.namprd12.prod.outlook.com>
On Wed, 26 Nov 2025 03:26:54 +0000
Ankit Agrawal <ankita@nvidia.com> wrote:
> >> MODULE_DEVICE_TABLE(pci, nvgrace_gpu_vfio_pci_table);
> >>
> > /*
> > * Comment explaining why this can't use lockdep_assert_held_write but
> > * in vfio use cases relies on this for serialization against faults and
> > * read/write.
> > */
> >
>
> In this patch or the next where we actually do the serialization with
> memory_lock?
When the interaction is added would make more sense. Thanks,
Alex
next prev parent reply other threads:[~2025-11-26 4:54 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-25 17:30 [PATCH v6 0/6] vfio/nvgrace-gpu: Support huge PFNMAP and wait for GPU ready post reset ankita
2025-11-25 17:30 ` [PATCH v6 1/6] vfio: export function to map the VMA ankita
2025-11-25 20:04 ` Zhi Wang
2025-11-25 20:52 ` Alex Williamson
2025-11-25 17:30 ` [PATCH v6 2/6] vfio/nvgrace-gpu: Add support for huge pfnmap ankita
2025-11-25 19:58 ` Zhi Wang
2025-11-25 20:52 ` Alex Williamson
2025-11-25 17:30 ` [PATCH v6 3/6] vfio: use vfio_pci_core_setup_barmap to map bar in mmap ankita
2025-11-25 20:04 ` Zhi Wang
2025-11-25 17:30 ` [PATCH v6 4/6] vfio/nvgrace-gpu: split the code to wait for GPU ready ankita
2025-11-25 20:30 ` Zhi Wang
2025-11-25 20:52 ` Alex Williamson
2025-11-25 17:30 ` [PATCH v6 5/6] vfio/nvgrace-gpu: Inform devmem unmapped after reset ankita
2025-11-25 20:52 ` Alex Williamson
2025-11-26 3:26 ` Ankit Agrawal
2025-11-26 4:54 ` Alex Williamson [this message]
2025-11-25 17:30 ` [PATCH v6 6/6] vfio/nvgrace-gpu: wait for the GPU mem to be ready ankita
2025-11-25 20:28 ` Zhi Wang
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