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Commit c934228c authored by Sudarshan Rajagopalan's avatar Sudarshan Rajagopalan Committed by Gerrit - the friendly Code Review server
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msm: secure_buffer: Add SPSS_SP vmid 



Add support for content protection for ION
memory allocated to SPSS through user process.

Change-Id: I1aa37717c02a5b96468d16ec1a26bb2ee7020e74
Signed-off-by: default avatarSudarshan Rajagopalan <sudaraja@codeaurora.org>
parent c3e15fc1

drivers/soc/qcom/secure_buffer.c

+3 −1
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2011 Google, Inc

 * Copyright (c) 2011-2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -412,6 +412,8 @@ const char *msm_secure_vmid_to_string(int secure_vmid) 
		return "VMID_WLAN_CE";

	case VMID_CP_CAMERA_PREVIEW:

		return "VMID_CP_CAMERA_PREVIEW";

	case VMID_CP_SPSS_SP:

		return "VMID_CP_SPSS_SP";

	case VMID_INVAL:

		return "VMID_INVAL";

	default:

drivers/staging/android/ion/msm/msm_ion.c

+5 −2
Original line number Diff line number Diff line 
/* Copyright (c) 2011-2016, The Linux Foundation. All rights reserved.

/* Copyright (c) 2011-2017, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -618,7 +618,8 @@ bool is_secure_vmid_valid(int vmid) 
		vmid == VMID_CP_CAMERA ||

		vmid == VMID_CP_SEC_DISPLAY ||

		vmid == VMID_CP_APP ||

		vmid == VMID_CP_CAMERA_PREVIEW);

		vmid == VMID_CP_CAMERA_PREVIEW ||

		vmid == VMID_CP_SPSS_SP);

}



int get_secure_vmid(unsigned long flags)
@@ -639,6 +640,8 @@ int get_secure_vmid(unsigned long flags) 
		return VMID_CP_APP;

	if (flags & ION_FLAG_CP_CAMERA_PREVIEW)

		return VMID_CP_CAMERA_PREVIEW;

	if (flags & ION_FLAG_CP_SPSS_SP)

		return VMID_CP_SPSS_SP;

	return -EINVAL;

}

/* fix up the cases where the ioctl direction bits are incorrect */

drivers/staging/android/uapi/msm_ion.h

+1 −0
Original line number Diff line number Diff line
@@ -84,6 +84,7 @@ enum cp_mem_usage { 
#define ION_FLAG_CP_NON_PIXEL		ION_BIT(20)

#define ION_FLAG_CP_CAMERA		ION_BIT(21)

#define ION_FLAG_CP_HLOS		ION_BIT(22)

#define ION_FLAG_CP_SPSS_SP		ION_BIT(23)

#define ION_FLAG_CP_SEC_DISPLAY		ION_BIT(25)

#define ION_FLAG_CP_APP			ION_BIT(26)

#define ION_FLAG_CP_CAMERA_PREVIEW	ION_BIT(27)

include/soc/qcom/secure_buffer.h

+2 −1
Original line number Diff line number Diff line 
/*

 * Copyright (c) 2015-2016, The Linux Foundation. All rights reserved.

 * Copyright (c) 2015-2017, The Linux Foundation. All rights reserved.

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 and
@@ -37,6 +37,7 @@ enum vmid { 
	VMID_CP_APP = 0x12,

	VMID_WLAN = 0x18,

	VMID_WLAN_CE = 0x19,

	VMID_CP_SPSS_SP = 0x1A,

	VMID_CP_CAMERA_PREVIEW = 0x1D,

	VMID_LAST,

	VMID_INVAL = -1