lib: sbi_trap_v_ldst: Redirect unhandled traps

When SBI is built with a compiler that doesn't support vector, the
misaligned vector load/store emulation is not built in, the handlers are
just stubs.

Currently the stubs just return 0, causing sbi_trap_emulate_load() to
return without incrementing mepc, meaning the instruction will just
fault again, an infinite loop.

Fix the stubs to use sbi_trap_redirect(), which forwards the trap to the
previous mode, allowing it to be handled there.

Fixes: c2acc5e5 ("lib: sbi_misaligned_ldst: Add handling of vector load/store")
Signed-off-by: Michael Ellerman <[email protected]>
Reviewed-by: Anup Patel <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Anup Patel <[email protected]>

0 files changed, 0 insertions, 0 deletions