From: Oleksandr Tyshchenko <olekstysh@gmail.com> To: xen-devel@lists.xenproject.org, virtualization@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>, Jason Wang <jasowang@redhat.com>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, Julien Grall <julien@xen.org>, Juergen Gross <jgross@suse.com>, Stefano Stabellini <sstabellini@kernel.org>, "Michael S. Tsirkin" <mst@redhat.com>, Christoph Hellwig <hch@infradead.org> Subject: [PATCH V1 4/6] dt-bindings: Add xen,dev-domid property description for xen-grant DMA ops Date: Fri, 22 Apr 2022 19:51:01 +0300 [thread overview] Message-ID: <1650646263-22047-5-git-send-email-olekstysh@gmail.com> (raw) In-Reply-To: <1650646263-22047-1-git-send-email-olekstysh@gmail.com> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Introduce Xen specific binding for the virtualized device (e.g. virtio) to be used by Xen grant DMA-mapping layer in the subsequent commit. This binding indicates that Xen grant mappings scheme needs to be enabled for the device which DT node contains that property and specifies the ID of Xen domain where the corresponding backend resides. The ID (domid) is used as an argument to the grant mapping APIs. This is needed for the option to restrict memory access using Xen grant mappings to work which primary goal is to enable using virtio devices in Xen guests. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> --- Changes RFC -> V1: - update commit subject/description and text in description - move to devicetree/bindings/arm/ --- .../devicetree/bindings/arm/xen,dev-domid.yaml | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/xen,dev-domid.yaml diff --git a/Documentation/devicetree/bindings/arm/xen,dev-domid.yaml b/Documentation/devicetree/bindings/arm/xen,dev-domid.yaml new file mode 100644 index 00000000..ef0f747 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/xen,dev-domid.yaml @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/xen,dev-domid.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xen specific binding for the virtualized device (e.g. virtio) + +maintainers: + - Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> + +select: true + +description: + This binding indicates that Xen grant mappings scheme needs to be enabled + for that device and specifies the ID of Xen domain where the corresponding + device (backend) resides. This is needed for the option to restrict memory + access using Xen grant mappings to work. + +properties: + xen,dev-domid: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The domid (domain ID) of the domain where the device (backend) is running. + +additionalProperties: true + +examples: + - | + virtio_block@3000 { + compatible = "virtio,mmio"; + reg = <0x3000 0x100>; + interrupts = <41>; + + /* The device is located in Xen domain with ID 1 */ + xen,dev-domid = <1>; + }; -- 2.7.4
WARNING: multiple messages have this Message-ID (diff)
From: Oleksandr Tyshchenko <olekstysh@gmail.com> To: xen-devel@lists.xenproject.org, virtualization@lists.linux-foundation.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>, Jason Wang <jasowang@redhat.com>, Rob Herring <robh+dt@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>, Julien Grall <julien@xen.org>, Juergen Gross <jgross@suse.com>, Stefano Stabellini <sstabellini@kernel.org>, "Michael S. Tsirkin" <mst@redhat.com>, Christoph Hellwig <hch@infradead.org> Subject: [PATCH V1 4/6] dt-bindings: Add xen, dev-domid property description for xen-grant DMA ops Date: Fri, 22 Apr 2022 19:51:01 +0300 [thread overview] Message-ID: <1650646263-22047-5-git-send-email-olekstysh@gmail.com> (raw) In-Reply-To: <1650646263-22047-1-git-send-email-olekstysh@gmail.com> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> Introduce Xen specific binding for the virtualized device (e.g. virtio) to be used by Xen grant DMA-mapping layer in the subsequent commit. This binding indicates that Xen grant mappings scheme needs to be enabled for the device which DT node contains that property and specifies the ID of Xen domain where the corresponding backend resides. The ID (domid) is used as an argument to the grant mapping APIs. This is needed for the option to restrict memory access using Xen grant mappings to work which primary goal is to enable using virtio devices in Xen guests. Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> --- Changes RFC -> V1: - update commit subject/description and text in description - move to devicetree/bindings/arm/ --- .../devicetree/bindings/arm/xen,dev-domid.yaml | 37 ++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 Documentation/devicetree/bindings/arm/xen,dev-domid.yaml diff --git a/Documentation/devicetree/bindings/arm/xen,dev-domid.yaml b/Documentation/devicetree/bindings/arm/xen,dev-domid.yaml new file mode 100644 index 00000000..ef0f747 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/xen,dev-domid.yaml @@ -0,0 +1,37 @@ +# SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/arm/xen,dev-domid.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Xen specific binding for the virtualized device (e.g. virtio) + +maintainers: + - Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com> + +select: true + +description: + This binding indicates that Xen grant mappings scheme needs to be enabled + for that device and specifies the ID of Xen domain where the corresponding + device (backend) resides. This is needed for the option to restrict memory + access using Xen grant mappings to work. + +properties: + xen,dev-domid: + $ref: /schemas/types.yaml#/definitions/uint32 + description: + The domid (domain ID) of the domain where the device (backend) is running. + +additionalProperties: true + +examples: + - | + virtio_block@3000 { + compatible = "virtio,mmio"; + reg = <0x3000 0x100>; + interrupts = <41>; + + /* The device is located in Xen domain with ID 1 */ + xen,dev-domid = <1>; + }; -- 2.7.4 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2022-04-22 16:52 UTC|newest] Thread overview: 79+ messages / expand[flat|nested] mbox.gz Atom feed top 2022-04-22 16:50 [PATCH V1 0/6] virtio: Solution to restrict memory access under Xen using xen-grant DMA-mapping layer Oleksandr Tyshchenko 2022-04-22 16:50 ` Oleksandr Tyshchenko 2022-04-22 16:50 ` [PATCH V1 1/6] arm/xen: Introduce xen_setup_dma_ops() Oleksandr Tyshchenko 2022-04-22 16:50 ` Oleksandr Tyshchenko 2022-04-22 22:59 ` Stefano Stabellini 2022-04-22 22:59 ` Stefano Stabellini 2022-04-23 14:35 ` Oleksandr 2022-04-23 14:35 ` Oleksandr 2022-04-23 16:32 ` Christoph Hellwig 2022-04-23 16:32 ` Christoph Hellwig 2022-04-22 16:50 ` [PATCH V1 2/6] xen/grants: support allocating consecutive grants Oleksandr Tyshchenko 2022-04-22 16:50 ` Oleksandr Tyshchenko 2022-04-22 16:51 ` [PATCH V1 3/6] xen/virtio: Add option to restrict memory access under Xen Oleksandr Tyshchenko 2022-04-22 16:51 ` Oleksandr Tyshchenko 2022-04-22 23:00 ` Stefano Stabellini 2022-04-22 23:00 ` Stefano Stabellini 2022-04-23 7:05 ` Oleksandr 2022-04-23 7:05 ` Oleksandr 2022-04-23 9:10 ` Juergen Gross 2022-04-23 9:10 ` Juergen Gross 2022-04-23 15:25 ` Oleksandr 2022-04-23 15:25 ` Oleksandr 2022-04-23 16:40 ` Christoph Hellwig 2022-04-23 16:40 ` Christoph Hellwig 2022-04-24 16:53 ` Oleksandr 2022-04-24 16:53 ` Oleksandr 2022-04-24 18:08 ` Boris Ostrovsky 2022-04-24 18:08 ` Boris Ostrovsky 2022-04-25 7:53 ` Juergen Gross 2022-04-25 7:53 ` Juergen Gross 2022-04-25 7:47 ` Juergen Gross 2022-04-25 7:47 ` Juergen Gross 2022-04-25 7:58 ` Christoph Hellwig 2022-04-25 7:58 ` Christoph Hellwig 2022-04-25 9:14 ` Juergen Gross 2022-04-25 9:14 ` Juergen Gross 2022-04-25 20:38 ` Oleksandr 2022-04-25 20:38 ` Oleksandr 2022-04-25 21:25 ` Borislav Petkov 2022-04-25 21:25 ` Borislav Petkov 2022-04-26 5:16 ` Juergen Gross 2022-04-26 5:16 ` Juergen Gross 2022-04-26 8:41 ` Borislav Petkov 2022-04-26 8:41 ` Borislav Petkov 2022-04-26 9:36 ` Juergen Gross 2022-04-26 9:36 ` Juergen Gross 2022-04-26 11:16 ` Borislav Petkov 2022-04-26 11:16 ` Borislav Petkov 2022-04-22 16:51 ` Oleksandr Tyshchenko [this message] 2022-04-22 16:51 ` [PATCH V1 4/6] dt-bindings: Add xen, dev-domid property description for xen-grant DMA ops Oleksandr Tyshchenko 2022-04-22 23:00 ` Stefano Stabellini 2022-04-22 23:00 ` Stefano Stabellini 2022-04-22 23:00 ` Stefano Stabellini 2022-04-23 14:37 ` Oleksandr 2022-04-23 14:37 ` Oleksandr 2022-05-02 21:59 ` [PATCH V1 4/6] dt-bindings: Add xen,dev-domid " Rob Herring 2022-05-02 21:59 ` Rob Herring 2022-05-02 21:59 ` Rob Herring 2022-05-03 17:09 ` Oleksandr 2022-05-03 17:09 ` Oleksandr 2022-05-04 0:02 ` Rob Herring 2022-05-04 0:02 ` Rob Herring 2022-05-04 0:02 ` Rob Herring 2022-05-05 10:12 ` Oleksandr 2022-05-05 10:12 ` Oleksandr 2022-04-22 16:51 ` [PATCH V1 5/6] xen/grant-dma-ops: Retrieve the ID of backend's domain for DT devices Oleksandr Tyshchenko 2022-04-22 16:51 ` Oleksandr Tyshchenko 2022-04-22 23:00 ` Stefano Stabellini 2022-04-22 23:00 ` Stefano Stabellini 2022-04-23 15:23 ` Oleksandr 2022-04-23 15:23 ` Oleksandr 2022-04-22 16:51 ` [PATCH V1 6/6] arm/xen: Assign xen-grant DMA ops for xen-grant DMA devices Oleksandr Tyshchenko 2022-04-22 16:51 ` Oleksandr Tyshchenko 2022-04-22 23:00 ` Stefano Stabellini 2022-04-22 23:00 ` Stefano Stabellini 2022-04-23 16:42 ` Christoph Hellwig 2022-04-23 16:42 ` Christoph Hellwig 2022-04-24 16:07 ` Oleksandr 2022-04-24 16:07 ` Oleksandr
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