Commit 08257610 authored by Sibi Sankar's avatar Sibi Sankar Committed by Bjorn Andersson
Browse files

arm64: dts: qcom: sc7180: Drop the unused non-MSA SID 



Having a non-MSA (Modem Self-Authentication) SID bypassed breaks modem
sandboxing i.e if a transaction were to originate from it, the hardware
memory protections units (XPUs) would fail to flag them (any transaction
originating from modem are historically termed as an MSA transaction).
Drop the unused non-MSA modem SID on SC7180 SoCs and cheza so that SMMU
continues to block them.

Tested-by: default avatarDouglas Anderson <dianders@chromium.org>
Reviewed-by: default avatarSai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Reviewed-by: default avatarDouglas Anderson <dianders@chromium.org>
Fixes: bec71ba2 ("arm64: dts: qcom: sc7180: Update Q6V5 MSS node")
Fixes: 68aee4af ("arm64: dts: qcom: sdm845-cheza: Add iommus property")
Cc: stable@vger.kernel.org
Reported-by: default avatarSai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: default avatarSibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200630081938.8131-1-sibis@codeaurora.org


Signed-off-by: default avatarBjorn Andersson <bjorn.andersson@linaro.org>
parent 948f6161

arch/arm64/boot/dts/qcom/sc7180-idp.dts

+1 −1
Original line number Diff line number Diff line
@@ -312,7 +312,7 @@ 
&remoteproc_mpss {

	status = "okay";

	compatible = "qcom,sc7180-mss-pil";

	iommus = <&apps_smmu 0x460 0x1>, <&apps_smmu 0x444 0x3>;

	iommus = <&apps_smmu 0x461 0x0>, <&apps_smmu 0x444 0x3>;

	memory-region = <&mba_mem &mpss_mem>;

};

arch/arm64/boot/dts/qcom/sdm845-cheza.dtsi

+1 −1
Original line number Diff line number Diff line
@@ -634,7 +634,7 @@ ap_ts_i2c: &i2c14 { 
};



&mss_pil {

	iommus = <&apps_smmu 0x780 0x1>,

	iommus = <&apps_smmu 0x781 0x0>,

		 <&apps_smmu 0x724 0x3>;

};