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Commit 4e4f2b2b authored by Ashutosh Kaushik's avatar Ashutosh Kaushik
Browse files

Added milestone call for QRKS 



Milestone call for QRKS on SDM660 feature is
added which will be handled in hypervisor.

Change-Id: I5a0ac1c1eff0035fe7b91003ffae161dda6e81ca
Signed-off-by: default avatarAshutosh Kaushik <quic_ashukaus@quicinc.com>
parent 67bf63c2

drivers/soc/qcom/scm.c

+35 −0
Original line number Diff line number Diff line
@@ -662,6 +662,40 @@ EXPORT_SYMBOL(scm_is_secure_device); 


#ifdef CONFIG_ARM64



#define TZ_HLOS_NOTIFY_CORE_KERNEL_BOOTUP 0x7

int  scm_mem_protection_init_do_qrks(void)

{

	uint32_t pid_offset = 0;

	uint32_t task_name_offset = 0;

	struct scm_desc desc = {0};

	int ret = 0, resp;



	pid_offset = offsetof(struct task_struct, pid);

	task_name_offset = offsetof(struct task_struct, comm);

	pr_debug("offset of pid is %zu, offset of comm is %zu\n",

		pid_offset, task_name_offset);

	desc.args[0] = pid_offset;

	desc.args[1] = task_name_offset;

	desc.arginfo = 2;

	ret = scm_call2(SCM_SIP_FNID(SCM_SVC_RTIC,

			TZ_HLOS_NOTIFY_CORE_KERNEL_BOOTUP),

			&desc);

	resp = desc.ret[0];



	if (ret == -1) {

		pr_err("%s: SCM call not supported\n", __func__);

		return ret;

	} else if (ret || resp) {

		pr_err("%s: SCM call failed\n", __func__);

		if (ret)

			return ret;

		else

			return resp;

	}



	return resp;

}



/*

 * SCM call command ID to protect kernel memory

 * in Hyp Stage 2 page tables.
@@ -675,6 +709,7 @@ static int __init scm_mem_protection_init(void) 
	struct scm_desc desc = {0};

	int ret = 0, resp;



	scm_mem_protection_init_do_qrks();

	desc.args[0] = 0;

	desc.arginfo = 0;

	ret = scm_call2(SCM_SIP_FNID(SCM_SVC_RTIC,