forked from Mirrors/opensbi
9c78593269
Add Ssdbltrp trap handler support for S-mode double trap handling. If the trap is received while in VS-mode, then the trap is redirected to S-mode. If caught while in HS-mode, then an error is returned to the top trap handler which will panic. Signed-off-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
34 lines
705 B
C
34 lines
705 B
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Anup Patel <anup.patel@wdc.com>
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*/
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#ifndef __SBI_TRAP_LDST_H__
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#define __SBI_TRAP_LDST_H__
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#include <sbi/sbi_types.h>
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#include <sbi/sbi_trap.h>
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union sbi_ldst_data {
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u64 data_u64;
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u32 data_u32;
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u8 data_bytes[8];
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ulong data_ulong;
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};
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int sbi_misaligned_load_handler(struct sbi_trap_context *tcntx);
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int sbi_misaligned_store_handler(struct sbi_trap_context *tcntx);
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int sbi_load_access_handler(struct sbi_trap_context *tcntx);
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int sbi_store_access_handler(struct sbi_trap_context *tcntx);
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int sbi_double_trap_handler(struct sbi_trap_context *tcntx);
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#endif
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