diff options
| author | Anup Patel <anup.patel@wdc.com> | 2020-09-07 15:50:33 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2020-09-16 09:05:25 +0530 |
| commit | 7ccf6bf54c2d7db6331f3fa319ef4e7019108c28 (patch) | |
| tree | 2e54824ef04c5c3dfcfd475e16c24f89e07112f9 /include | |
| parent | 6734304f8c759c782cab12ecfd6c20fb23b8ee44 (diff) | |
lib: sbi: Allow specifying mode in sbi_hart_pmp_check_addr() API
We extend sbi_hart_pmp_check_addr() API so that users can specify
privilege mode of the address for checking PMP access permissions.
To achieve this, we end-up converting "unsigned long *size" parameter
to "unsigned long *log2len" for pmp_get() implementation so that we
can deal with regions of "1UL << __riscv_xlen" size in a special case
in sbi_hart_pmp_check_addr() implementation.
Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sbi/riscv_asm.h | 2 | ||||
| -rw-r--r-- | include/sbi/sbi_hart.h | 3 |
2 files changed, 3 insertions, 2 deletions
diff --git a/include/sbi/riscv_asm.h b/include/sbi/riscv_asm.h index 6e093ca..10f31a7 100644 --- a/include/sbi/riscv_asm.h +++ b/include/sbi/riscv_asm.h @@ -180,7 +180,7 @@ int pmp_set(unsigned int n, unsigned long prot, unsigned long addr, unsigned long log2len); int pmp_get(unsigned int n, unsigned long *prot_out, unsigned long *addr_out, - unsigned long *size); + unsigned long *log2len); #endif /* !__ASSEMBLY__ */ diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h index 1e1eb67..0ba68f0 100644 --- a/include/sbi/sbi_hart.h +++ b/include/sbi/sbi_hart.h @@ -42,7 +42,8 @@ int sbi_hart_pmp_get(struct sbi_scratch *scratch, unsigned int n, unsigned long *prot_out, unsigned long *addr_out, unsigned long *size); void sbi_hart_pmp_dump(struct sbi_scratch *scratch); -int sbi_hart_pmp_check_addr(struct sbi_scratch *scratch, unsigned long daddr, +int sbi_hart_pmp_check_addr(struct sbi_scratch *scratch, + unsigned long daddr, unsigned long mode, unsigned long attr); bool sbi_hart_has_feature(struct sbi_scratch *scratch, unsigned long feature); void sbi_hart_get_features_str(struct sbi_scratch *scratch, |