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From: Sibi Sankar <quic_sibis@quicinc.com>
To: <andersson@kernel.org>, <manivannan.sadhasivam@linaro.org>
CC: <agross@kernel.org>, <linux-arm-msm@vger.kernel.org>,
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Subject: [PATCH V4 03/11] dt-bindings: remoteproc: qcom,sc7180-mss-pil: Update
memory-region
Date: Tue, 17 Jan 2023 14:28:32 +0530
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| Series |
Fix XPU violation during modem metadata authentication
|
|
Commit Message
Sibi Sankar
Jan. 17, 2023, 8:58 a.m. UTC
The dynamic memory region used for metadata authentication would still be a part of the kernel mapping and any access to this region by the application processor after assigning it to the remote Q6 will result in a XPU violation. This is fixed by using a no-map carveout instead. Update the bindings to reflect the addition of the new modem metadata carveout on SC7180 SoC. Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by: Sibi Sankar <quic_sibis@quicinc.com> --- v3: * remove double space [Krzysztof] * Pickup R-b v2: * Pad commit message to explain bindings break [Krzysztof] * Split dt/bindings per SoC [Krzysztof] .../devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml b/Documentation/devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml index e4a7da8020f4..b1402bef0ebe 100644 --- a/Documentation/devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml +++ b/Documentation/devicetree/bindings/remoteproc/qcom,sc7180-mss-pil.yaml @@ -95,6 +95,7 @@ properties: items: - description: MBA reserved region - description: modem reserved region + - description: metadata reserved region firmware-name: $ref: /schemas/types.yaml#/definitions/string-array @@ -223,7 +224,7 @@ examples: <&rpmhpd SC7180_MSS>; power-domain-names = "cx", "mx", "mss"; - memory-region = <&mba_mem>, <&mpss_mem>; + memory-region = <&mba_mem>, <&mpss_mem>, <&mdata_mem>; qcom,qmp = <&aoss_qmp>;