From: sashiko-bot@kernel.org
To: "Shameer Kolothum" <skolothumtho@nvidia.com>
Cc: kvm@vger.kernel.org, linux-pci@vger.kernel.org
Subject: Re: [RFC PATCH v2 05/16] vfio/pci: Fail BAR faults while access is blocked
Date: Tue, 29 Sep 2026 17:45:37 +0000 [thread overview]
Message-ID: <20260929174538.0BE631F000FF@smtp.kernel.org> (raw)
In-Reply-To: <20260929173305.204856-6-skolothumtho@nvidia.com>
> Hold access_srcu across PFN insertion in the BAR fault handler. This
> ensures recovery waits for an insertion before revoking the mapping.
>
> Return VM_FAULT_SIGBUS rather than wait for recovery in the fault
> handler when access is blocked. Whether userspace can handle the
> resulting failure depends on the architecture and KVM fault-reporting
> path.
>
> Assisted-by: LLM
> Signed-off-by: Shameer Kolothum <skolothumtho@nvidia.com>
Sashiko has reviewed this patch and found no issues. It looks great!
--
Sashiko AI review · https://sashiko.dev/#/patchset/20260929173305.204856-1-skolothumtho@nvidia.com?part=5
next prev parent reply other threads:[~2026-09-29 17:45 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-29 17:32 [RFC PATCH v2 00/16] vfio/pci: Handle PCI error recovery and report state to userspace Shameer Kolothum
2026-09-29 17:32 ` [RFC PATCH v2 01/16] vfio/pci: Add a device access gate Shameer Kolothum
2026-09-29 17:48 ` sashiko-bot
2026-09-29 17:32 ` [RFC PATCH v2 02/16] vfio/pci: Gate config space access Shameer Kolothum
2026-09-29 17:52 ` sashiko-bot
2026-09-29 17:32 ` [RFC PATCH v2 03/16] vfio/pci: Buffer ROM reads before copying to userspace Shameer Kolothum
2026-09-29 17:49 ` sashiko-bot
2026-09-29 17:32 ` [RFC PATCH v2 04/16] vfio/pci: Gate BAR and ROM access Shameer Kolothum
2026-09-29 17:41 ` sashiko-bot
2026-09-29 17:32 ` [RFC PATCH v2 05/16] vfio/pci: Fail BAR faults while access is blocked Shameer Kolothum
2026-09-29 17:45 ` sashiko-bot [this message]
2026-09-29 17:32 ` [RFC PATCH v2 06/16] vfio/pci: Gate interrupt configuration Shameer Kolothum
2026-09-29 17:43 ` sashiko-bot
2026-09-29 17:32 ` [RFC PATCH v2 07/16] vfio/pci: Gate function reset and runtime power management Shameer Kolothum
2026-09-29 17:48 ` sashiko-bot
2026-09-29 17:32 ` [RFC PATCH v2 08/16] vfio/pci: Gate device information queries and DMA-BUF export Shameer Kolothum
2026-09-29 17:44 ` sashiko-bot
2026-09-29 17:32 ` [RFC PATCH v2 09/16] vfio/pci: Add PCI error recovery state Shameer Kolothum
2026-09-29 17:44 ` sashiko-bot
2026-09-29 17:32 ` [RFC PATCH v2 10/16] vfio/pci: Quiesce INTx while access is blocked Shameer Kolothum
2026-09-29 17:45 ` sashiko-bot
2026-09-29 17:33 ` [RFC PATCH v2 11/16] vfio/pci: Add INTx recovery start and finish helpers Shameer Kolothum
2026-09-29 17:44 ` sashiko-bot
2026-09-29 17:33 ` [RFC PATCH v2 12/16] vfio/pci: Restore device state from slot_reset() Shameer Kolothum
2026-09-29 17:50 ` sashiko-bot
2026-09-29 17:33 ` [RFC PATCH v2 13/16] vfio/pci: Complete recovery in resume() Shameer Kolothum
2026-09-29 17:51 ` sashiko-bot
2026-09-29 17:33 ` [RFC PATCH v2 14/16] vfio/pci: Block device access during host recovery Shameer Kolothum
2026-09-29 17:51 ` sashiko-bot
2026-09-29 17:33 ` [RFC PATCH v2 15/16] vfio/pci: Add VFIO_DEVICE_FEATURE_PCI_ERROR_RECOVERY Shameer Kolothum
2026-09-29 17:48 ` sashiko-bot
2026-09-29 17:33 ` [RFC PATCH v2 16/16] vfio/pci: Enable host PCI error recovery for vfio-pci Shameer Kolothum
2026-09-29 17:49 ` sashiko-bot
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