From: Richard Henderson <richard.hender...@linaro.org>
We failed to raise an exception when
sme_excp_el == 0 and fp_excp_el == 1.
Cc: qemu-sta...@nongnu.org
Fixes: 3d74825f4d6 ("target/arm: Add SME enablement checks")
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Richard Henderson <richard.hender...@linaro.org>
Message-id: 20250704142112.1018902-2-richard.hender...@linaro.org
Signed-off-by: Peter Maydell <peter.mayd...@linaro.org>
(cherry picked from commit f9b0f69304071384b12912bf9dd78e9ffd261cec)
Signed-off-by: Michael Tokarev <m...@tls.msk.ru>
diff --git a/target/arm/tcg/translate-a64.c b/target/arm/tcg/translate-a64.c
index f6e88eb5f7..aebf313e38 100644
--- a/target/arm/tcg/translate-a64.c
+++ b/target/arm/tcg/translate-a64.c
@@ -1499,7 +1499,8 @@ bool sme_enabled_check(DisasContext *s)
* to be zero when fp_excp_el has priority. This is because we need
* sme_excp_el by itself for cpregs access checks.
*/
- if (!s->fp_excp_el || s->sme_excp_el < s->fp_excp_el) {
+ if (s->sme_excp_el
+ && (!s->fp_excp_el || s->sme_excp_el <= s->fp_excp_el)) {
bool ret = sme_access_check(s);
s->fp_access_checked = (ret ? 1 : -1);
return ret;
--
2.47.2
