Files
opensbi/include/sbi/sbi_error.h
Anup Patel a6395acd6c lib: Handle page/access fault caused by unpriv load/store
The unpriv load/store instruction from M-mode can cause page/access
fault to M-mode if S-mode page table did not have mappings OR it did
not have PMP access permission.

To tackle this, we redirect trap back to S-mode if unpriv load/store
instruction traps in M-mode.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
2019-05-24 08:22:47 +05:30

33 lines
586 B
C

/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __SBI_ERROR_H__
#define __SBI_ERROR_H__
/* clang-format off */
#define SBI_OK 0
#define SBI_EUNKNOWN -1
#define SBI_EFAIL -2
#define SBI_EINVAL -3
#define SBI_ENOENT -4
#define SBI_ENOTSUPP -5
#define SBI_ENODEV -6
#define SBI_ENOSYS -7
#define SBI_ETIMEDOUT -8
#define SBI_EIO -9
#define SBI_EILL -10
#define SBI_ENOSPC -11
#define SBI_ENOMEM -12
#define SBI_ETRAP -13
/* clang-format on */
#endif