forked from Mirrors/opensbi
3a30d2c34d
The sbi_hsm_hart_start() should consider the domain under which we are trying to start the HART. This will help ensure that HART A can start HART B only if both HARTs A and B belong to the same domain. We also have a special case when we bring-up boot HART of non-root domains in sbi_domain_finalize() where we should skip domain checks in sbi_hsm_hart_start(). To achieve this, sbi_hsm_hart_start() should do domain checks only when domain parameter is non-NULL. This patch extends sbi_hsm_hart_start() as-per above. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
39 lines
1.1 KiB
C
39 lines
1.1 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2020 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Atish Patra <atish.patra@wdc.com>
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*/
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#ifndef __SBI_HSM_H__
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#define __SBI_HSM_H__
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#include <sbi/sbi_types.h>
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/** Hart state values **/
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#define SBI_HART_STOPPED 0
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#define SBI_HART_STOPPING 1
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#define SBI_HART_STARTING 2
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#define SBI_HART_STARTED 3
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#define SBI_HART_UNKNOWN 4
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struct sbi_domain;
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struct sbi_scratch;
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int sbi_hsm_init(struct sbi_scratch *scratch, u32 hartid, bool cold_boot);
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void __noreturn sbi_hsm_exit(struct sbi_scratch *scratch);
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int sbi_hsm_hart_start(struct sbi_scratch *scratch,
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const struct sbi_domain *dom,
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u32 hartid, ulong saddr, ulong smode, ulong priv);
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int sbi_hsm_hart_stop(struct sbi_scratch *scratch, bool exitnow);
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int sbi_hsm_hart_get_state(const struct sbi_domain *dom, u32 hartid);
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int sbi_hsm_hart_state_to_status(int state);
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int sbi_hsm_hart_started_mask(const struct sbi_domain *dom,
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ulong hbase, ulong *out_hmask);
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void sbi_hsm_prepare_next_jump(struct sbi_scratch *scratch, u32 hartid);
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#endif
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