diff options
| author | Clément Léger <[email protected]> | 2024-10-18 10:40:04 +0200 |
|---|---|---|
| committer | Anup Patel <[email protected]> | 2024-10-25 23:58:00 +0530 |
| commit | 9c7859326909c8025bf23909f1952ee963a1cdd4 (patch) | |
| tree | dfeef490a19f326e55430c42c998bbb9d3efdc3f /include | |
| parent | 80656bdb1daf380b5562cba11f43754fe916d631 (diff) | |
lib: sbi: add Ssdbltrp ISA extension support
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 <[email protected]>
Reviewed-by: Samuel Holland <[email protected]>
Diffstat (limited to 'include')
| -rw-r--r-- | include/sbi/riscv_encoding.h | 4 | ||||
| -rw-r--r-- | include/sbi/sbi_hart.h | 2 | ||||
| -rw-r--r-- | include/sbi/sbi_trap_ldst.h | 2 |
3 files changed, 7 insertions, 1 deletions
diff --git a/include/sbi/riscv_encoding.h b/include/sbi/riscv_encoding.h index 980abdbe..22644274 100644 --- a/include/sbi/riscv_encoding.h +++ b/include/sbi/riscv_encoding.h @@ -216,6 +216,7 @@ #define ENVCFG_PBMTE (_ULL(1) << 62) #define ENVCFG_ADUE (_ULL(1) << 61) #define ENVCFG_CDE (_ULL(1) << 60) +#define ENVCFG_DTE (_ULL(1) << 59) #define ENVCFG_PMM (_ULL(0x3) << 32) #define ENVCFG_PMM_PMLEN_0 (_ULL(0x0) << 32) #define ENVCFG_PMM_PMLEN_7 (_ULL(0x2) << 32) @@ -773,7 +774,8 @@ #define CAUSE_FETCH_PAGE_FAULT 0xc #define CAUSE_LOAD_PAGE_FAULT 0xd #define CAUSE_STORE_PAGE_FAULT 0xf -#define CAUSE_SW_CHECK_EXCP 0x12 +#define CAUSE_DOUBLE_TRAP 0x10 +#define CAUSE_SW_CHECK_EXCP 0x12 #define CAUSE_FETCH_GUEST_PAGE_FAULT 0x14 #define CAUSE_LOAD_GUEST_PAGE_FAULT 0x15 #define CAUSE_VIRTUAL_INST_FAULT 0x16 diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h index 22d83275..4c36c778 100644 --- a/include/sbi/sbi_hart.h +++ b/include/sbi/sbi_hart.h @@ -73,6 +73,8 @@ enum sbi_hart_extensions { SBI_HART_EXT_ZICFILP, /** HART has zicfiss extension */ SBI_HART_EXT_ZICFISS, + /** Hart has Ssdbltrp extension */ + SBI_HART_EXT_SSDBLTRP, /** Maximum index of Hart extension */ SBI_HART_EXT_MAX, diff --git a/include/sbi/sbi_trap_ldst.h b/include/sbi/sbi_trap_ldst.h index 8aee3164..4c5cc375 100644 --- a/include/sbi/sbi_trap_ldst.h +++ b/include/sbi/sbi_trap_ldst.h @@ -28,4 +28,6 @@ int sbi_load_access_handler(struct sbi_trap_context *tcntx); int sbi_store_access_handler(struct sbi_trap_context *tcntx); +int sbi_double_trap_handler(struct sbi_trap_context *tcntx); + #endif |