diff mbox series

[v6,3/4] lib: sbi: sw check exception delegation

Message ID 20240916182357.24545-4-debug@rivosinc.com
State New
Headers show
Series zicfilp and zicfiss support in opensbi | expand

Commit Message

Deepak Gupta Sept. 16, 2024, 6:23 p.m. UTC 
zicfiss and zicfilp introduces new exception (cause=18). Delegate this
exception to S mode because cfi violations in U / S will be reported
via this exception.

Signed-off-by: Deepak Gupta <debug@rivosinc.com>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
---
 lib/sbi/sbi_hart.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c
index e1bc346..54c261f 100644
--- a/lib/sbi/sbi_hart.c
+++ b/lib/sbi/sbi_hart.c
@@ -207,7 +207,8 @@  static int delegate_traps(struct sbi_scratch *scratch)
 	if (sbi_platform_has_mfaults_delegation(plat))
 		exceptions |= (1U << CAUSE_FETCH_PAGE_FAULT) |
 			      (1U << CAUSE_LOAD_PAGE_FAULT) |
-			      (1U << CAUSE_STORE_PAGE_FAULT);
+			      (1U << CAUSE_STORE_PAGE_FAULT) |
+			      (1U << CAUSE_SW_CHECK_EXCP);
 
 	/*
 	 * If hypervisor extension available then we only handle hypervisor