From: sashiko-bot@kernel.org
To: "Matt Evans" <matt@ozlabs.org>
Cc: linux-pci@vger.kernel.org, kvm@vger.kernel.org,
dri-devel@lists.freedesktop.org, media-ci@linuxtv.org
Subject: Re: [PATCH v7 2/9] vfio/pci: Un-revoke DMABUFs in LOW_POWER_ENTRY_WITH_WAKEUP resume
Date: Thu, 24 Sep 2026 15:30:38 +0000 [thread overview]
Message-ID: <20260924153038.A14A51F00898@smtp.kernel.org> (raw)
In-Reply-To: <20260924152159.49702-3-matt@ozlabs.org>
> VFIO_DEVICE_FEATURE_LOW_POWER_ENTRY_WITH_WAKEUP correctly revokes
> DMABUFs on entry and, when paired with a
> VFIO_DEVICE_FEATURE_LOW_POWER_EXIT, vfio_pci_runtime_pm_exit()
> correctly un-revokes them.
>
> However, when vfio_pci_core_runtime_resume() signals the eventfd on
> resume, the bare __vfio_pci_runtime_pm_exit() is used (which does not
> un-revoke). Add vfio_pci_dma_buf_move(false) to the resume path,
> making it similar to vfio_pci_runtime_pm_exit().
>
> This also reorders the eventfd signal after the un-revoke and
> __vfio_pci_runtime_pm_exit() to guarantee that woken threads observe
> the new state.
>
> Fixes: 5d74781ebc86 ("vfio/pci: Add dma-buf export support for MMIO regions")
> Signed-off-by: Matt Evans <matt@ozlabs.org>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260924152159.49702-1-matt@ozlabs.org?part=2
next prev parent reply other threads:[~2026-09-24 15:30 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-24 15:21 [PATCH v7 0/9] vfio/pci: Add mmap() for DMABUFs Matt Evans
2026-09-24 15:21 ` [PATCH v7 1/9] vfio/pci: Remove DMABUF export dependency on vdev->memory_lock Matt Evans
2026-09-24 15:37 ` sashiko-bot
2026-09-29 14:12 ` Matt Evans
2026-09-24 15:21 ` [PATCH v7 2/9] vfio/pci: Un-revoke DMABUFs in LOW_POWER_ENTRY_WITH_WAKEUP resume Matt Evans
2026-09-24 15:30 ` sashiko-bot [this message]
2026-09-24 15:21 ` [PATCH v7 3/9] dma-buf: Provide dma_buf_set_name() Matt Evans
2026-09-24 15:29 ` sashiko-bot
2026-09-25 8:39 ` Christian König
2026-09-29 11:43 ` Matt Evans
2026-09-24 15:21 ` [PATCH v7 4/9] vfio/pci: Add a helper to look up PFNs for DMABUFs Matt Evans
2026-09-24 15:35 ` sashiko-bot
2026-09-24 15:21 ` [PATCH v7 5/9] vfio/pci: Add a helper to create a DMABUF for a BAR-map VMA Matt Evans
2026-09-24 15:38 ` sashiko-bot
2026-09-24 15:21 ` [PATCH v7 6/9] vfio/pci: Convert BAR mmap() to use a DMABUF Matt Evans
2026-09-24 15:34 ` sashiko-bot
2026-09-28 17:59 ` Alex Mastro
2026-09-24 15:21 ` [PATCH v7 7/9] vfio/pci: Clean up BAR zap and revocation Matt Evans
2026-09-24 15:34 ` sashiko-bot
2026-09-24 15:21 ` [PATCH v7 8/9] vfio/pci: Support mmap() of a VFIO DMABUF Matt Evans
2026-09-24 15:36 ` sashiko-bot
2026-09-24 15:21 ` [PATCH v7 9/9] vfio/pci: Revoke a DMABUF on request from userspace Matt Evans
2026-09-24 15:35 ` sashiko-bot
2026-10-01 21:38 ` [PATCH v7 0/9] vfio/pci: Add mmap() for DMABUFs Alex Williamson
2026-10-02 14:04 ` Matt Evans
2026-10-02 14:51 ` Jason Gunthorpe
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=20260924153038.A14A51F00898@smtp.kernel.org \
--to=sashiko-bot@kernel.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=kvm@vger.kernel.org \
--cc=linux-pci@vger.kernel.org \
--cc=matt@ozlabs.org \
--cc=media-ci@linuxtv.org \
--cc=sashiko-reviews@lists.linux.dev \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.