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60d330dc4d
Combining the EL2 and EL3 enablement code necessitates that it must be called at el3_exit, which is the only place with enough context to make the decision of what needs to be set. Decouple them to allow them to be called from elsewhere. Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com> Change-Id: I147764c42771e7d4100699ec8fae98dac0a505c0
25 lines
446 B
C
25 lines
446 B
C
/*
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* Copyright (c) 2021-2023, Arm Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <stdbool.h>
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#include <arch.h>
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#include <arch_helpers.h>
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#include <lib/extensions/sys_reg_trace.h>
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void sys_reg_trace_init_el3(void)
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{
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uint32_t val;
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/*
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* NSACR.NSTRCDIS = b0
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* enable NS system register access to implemented trace
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* registers.
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*/
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val = read_nsacr();
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val &= ~NSTRCDIS_BIT;
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write_nsacr(val);
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}
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