[PULL,09/37] target/arm: Handle PSTATE.ALLINT on taking an exception

Commit Message

Peter Maydell April 25, 2024, 10:39 a.m. UTC

From: Jinjie Ruan <[e-mail]>

Set or clear PSTATE.ALLINT on taking an exception to ELx according to the
SCTLR_ELx.SPINTMASK bit.

Signed-off-by: Jinjie Ruan <[e-mail]>
Reviewed-by: Richard Henderson <[e-mail]>
Reviewed-by: Peter Maydell <[e-mail]>
Message-id: [e-mail]
Signed-off-by: Peter Maydell <[e-mail]>
---
 target/arm/helper.c | 8 ++++++++
 1 file changed, 8 insertions(+)

Patch

diff --git a/target/arm/helper.c b/target/arm/helper.c
index 6b6d8a349a2..5ff9e44649a 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -11733,6 +11733,14 @@  static void arm_cpu_do_interrupt_aarch64(CPUState *cs)
         }
     }
 
+    if (cpu_isar_feature(aa64_nmi, cpu)) {
+        if (!(env->cp15.sctlr_el[new_el] & SCTLR_SPINTMASK)) {
+            new_mode |= PSTATE_ALLINT;
+        } else {
+            new_mode &= ~PSTATE_ALLINT;
+        }
+    }
+
     pstate_write(env, PSTATE_DAIF | new_mode);
     env->aarch64 = true;
     aarch64_restore_sp(env, new_el);