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lib: sbi: Rework and split sbi_misaligned(_v)_tinst_fixup

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The load/store address offset between the uptrap and the orig_trap
can be derived by orig_trap->tval - uptrap->tval, thus refactor
the function prototype for simplicity.

For vector load, sbi_misaligned_v_tinst_fixup is introduced. There's
no transformed instruction for vector load/store, so null out tinst
if the fault is not a guest-page fault.

Signed-off-by: Bo Gan <ganboing@gmail.com>
Tested-by: Anirudh Srinivasan <asrinivasan@oss.tenstorrent.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20260609060024.706-3-ganboing@gmail.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Bo Gan
2026-06-08 23:00:22 -07:00
committed by Anup Patel
parent 4120e6dce2
commit 1475f147f6
3 changed files with 59 additions and 21 deletions
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include/sbi/sbi_trap_ldst.h
-3
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@@ -28,9 +28,6 @@ int sbi_load_access_handler(struct sbi_trap_context *tcntx);
int sbi_store_access_handler(struct sbi_trap_context *tcntx);
ulong sbi_misaligned_tinst_fixup(ulong orig_tinst, ulong new_tinst,
ulong addr_offset);
int sbi_misaligned_v_ld_emulator(ulong insn,
struct sbi_trap_context *tcntx);