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 <cleger@rivosinc.com>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
This commit is contained in:
Clément Léger
2024-10-18 10:40:04 +02:00
committed by Anup Patel
parent 80656bdb1d
commit 9c78593269
7 changed files with 46 additions and 1 deletions

View File

@@ -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,