From: "Eliot Courtney" <ecourtney@nvidia.com>
To: "Alexandre Courbot" <acourbot@nvidia.com>,
"Danilo Krummrich" <dakr@kernel.org>,
"Alice Ryhl" <aliceryhl@google.com>,
"David Airlie" <airlied@gmail.com>,
"Simona Vetter" <simona@ffwll.ch>,
"Bjorn Helgaas" <bhelgaas@google.com>,
"Krzysztof Wilczyński" <kwilczynski@kernel.org>,
"Miguel Ojeda" <ojeda@kernel.org>, "Gary Guo" <gary@garyguo.net>,
"Björn Roy Baron" <bjorn3_gh@protonmail.com>,
"Benno Lossin" <lossin@kernel.org>,
"Andreas Hindborg" <a.hindborg@kernel.org>,
"Trevor Gross" <tmgross@umich.edu>,
"Boqun Feng" <boqun@kernel.org>
Cc: "John Hubbard" <jhubbard@nvidia.com>,
"Alistair Popple" <apopple@nvidia.com>,
"Joel Fernandes" <joelagnelf@nvidia.com>,
"Timur Tabi" <ttabi@nvidia.com>,
"Eliot Courtney" <ecourtney@nvidia.com>,
<dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>,
<rust-for-linux@vger.kernel.org>
Subject: Re: [PATCH v3 5/6] gpu: nova-core: send UNLOADING_GUEST_DRIVER GSP command upon unloading
Date: Thu, 23 Apr 2026 12:00:35 +0900 [thread overview]
Message-ID: <DI076717QSXT.1XSCYXSUPFKFA@nvidia.com> (raw)
In-Reply-To: <20260422-nova-unload-v3-5-1d2c81bd3ced@nvidia.com>
On Wed Apr 22, 2026 at 10:40 PM JST, Alexandre Courbot wrote:
> Currently, the GSP is left running after the driver is unbound. This is
> not great for several reasons, notably that it can still access shared
> memory areas that the kernel will now reclaim (especially problematic on
> setups without an IOMMU).
>
> Fix this by sending the `UNLOADING_GUEST_DRIVER` GSP command when
> unbinding. This stops the GSP and lets us proceed with the rest of the
> unbind sequence in the next patch.
>
> Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
> ---
Reviewed-by: Eliot Courtney <ecourtney@nvidia.com>
next prev parent reply other threads:[~2026-04-23 3:00 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-22 13:40 [PATCH v3 0/6] gpu: nova-core: run unload sequence upon unbinding Alexandre Courbot
2026-04-22 13:40 ` [PATCH v3 1/6] rust: add warn_on_err macro Alexandre Courbot
2026-04-26 13:30 ` Miguel Ojeda
2026-04-30 15:11 ` Alexandre Courbot
2026-04-30 15:22 ` Danilo Krummrich
2026-05-01 6:13 ` Alexandre Courbot
2026-04-22 13:40 ` [PATCH v3 2/6] gpu: nova-core: use " Alexandre Courbot
2026-04-22 13:40 ` [PATCH v3 3/6] gpu: nova-core: remove unneeded get_gsp_info proxy function Alexandre Courbot
2026-04-23 2:32 ` Eliot Courtney
2026-04-22 13:40 ` [PATCH v3 4/6] gpu: nova-core: do not import firmware commands into GSP command module Alexandre Courbot
2026-04-22 13:40 ` [PATCH v3 5/6] gpu: nova-core: send UNLOADING_GUEST_DRIVER GSP command upon unloading Alexandre Courbot
2026-04-23 3:00 ` Eliot Courtney [this message]
2026-04-22 13:40 ` [PATCH v3 6/6] gpu: nova-core: run Booter Unloader and FWSEC-SB upon unbinding Alexandre Courbot
2026-05-13 20:59 ` [PATCH v3 0/6] gpu: nova-core: run unload sequence " John Hubbard
2026-05-15 2:20 ` Alexandre Courbot
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