commit 5fe3151c5e18eb15347c2ea572b551c7aed67a9f
author Richard Henderson <richard.henderson@linaro.org> Sat Aug 30 15:40:06 2025 +1000
committer Peter Maydell <peter.maydell@linaro.org> Tue Sep 16 17:31:53 2025 +0100
tree c23551bf3a676f7b83d9120e952500ab37e1c69e
parent 71eba045758289e12133c4977f81c9132325c648

linux-user/aarch64: Check syndrome for EXCP_UDEF

Note that we have been passing the incorrect code for most
exception codes: uncategorized (do_el0_undef),
systemregistertrap (do_el0_sys), smetrap (do_sme_acc),
btitrap (do_el0_bti) and illegalstate (bad_el0_sync).
Only pacfail uses ILL_ILLOPN (do_el0_fpac).

Note that EC_MOP (do_el0_mops) ought not signal at all.
For now, preserve existing behavior signalling ILL_ILLOPN.

List all other exception codes and document why they do
not apply to user-only.

Reviewed-by: Pierrick Bouvier <pierrick.bouvier@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20250830054128.448363-3-richard.henderson@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>