diff options
| author | Anup Patel <anup.patel@wdc.com> | 2019-05-23 13:30:58 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2019-05-24 08:22:47 +0530 |
| commit | a6395acd6cb2c35871481d3e4f0beaf449f8c0fd (patch) | |
| tree | 4361c3454a814e49cea8f53d0a6cf3885e7f280b /include/sbi/sbi_ipi.h | |
| parent | bb915780ac76b146f3de47f105a95359e02f158c (diff) | |
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>
Diffstat (limited to 'include/sbi/sbi_ipi.h')
| -rw-r--r-- | include/sbi/sbi_ipi.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/sbi/sbi_ipi.h b/include/sbi/sbi_ipi.h index b8afb5b..53468b2 100644 --- a/include/sbi/sbi_ipi.h +++ b/include/sbi/sbi_ipi.h @@ -10,6 +10,7 @@ #ifndef __SBI_IPI_H__ #define __SBI_IPI_H__ +#include <sbi/riscv_unpriv.h> #include <sbi/sbi_types.h> /* clang-format off */ @@ -28,8 +29,8 @@ struct sbi_ipi_data { unsigned long ipi_type; }; -int sbi_ipi_send_many(struct sbi_scratch *scratch, ulong *pmask, u32 event, - void *data); +int sbi_ipi_send_many(struct sbi_scratch *scratch, struct unpriv_trap *uptrap, + ulong *pmask, u32 event, void *data); void sbi_ipi_clear_smode(struct sbi_scratch *scratch); |