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Commit 5265f5ed authored by Tharun Kumar Merugu's avatar Tharun Kumar Merugu
Browse files

msm: ADSPRPC: Restrict access to hyp_assign_phys calls 



Block hyp_assign_phys calls, if the restrict access
flag is defined in the device specific file.

Change-Id: Ie546e748169dda51af4ab5f017581bbda2cc7081
Signed-off-by: default avatarTharun Kumar Merugu <mtharu@codeaurora.org>
parent 0abd32ff

Documentation/devicetree/bindings/qdsp/msm-fastrpc.txt

+2 −0
Original line number Diff line number Diff line
@@ -86,9 +86,11 @@ Remote Heap: 
Required properties:

- compatible : Must be "qcom,msm-adsprpc-mem-region"

- memory-region : CMA region which is owned by this device

- restrict-access : Blocking vote for hyp_assign_phys function call



Example:

       qcom,adsprpc-mem {

               compatible = "qcom,msm-adsprpc-mem-region";

               memory-region = <&adsp_mem>;

               restrict-access;

       };

drivers/char/adsprpc.c

+2 −1
Original line number Diff line number Diff line
@@ -3216,7 +3216,8 @@ static int fastrpc_probe(struct platform_device *pdev) 
				break;

			}

		}

		if (range.addr) {

		if (range.addr && !of_property_read_bool(dev->of_node,

							 "restrict-access")) {

			int srcVM[1] = {VMID_HLOS};

			int destVM[4] = {VMID_HLOS, VMID_MSS_MSA, VMID_SSC_Q6,

						VMID_ADSP_Q6};