[PATCH v5 36/41] target/arm: Update arm_cpu_do_interrupt_aarch64 for VHE

Richard Henderson posted 41 patches 5 years, 9 months ago
Maintainers: Peter Maydell <peter.maydell@linaro.org>
There is a newer version of this series
[PATCH v5 36/41] target/arm: Update arm_cpu_do_interrupt_aarch64 for VHE
Posted by Richard Henderson 5 years, 9 months ago
When VHE is enabled, the exception level below EL2 is not EL1,
but EL0, and so to identify the entry vector offset for exceptions
targeting EL2 we need to look at the width of EL0, not of EL1.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/arm/helper.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/target/arm/helper.c b/target/arm/helper.c
index a2eb01f97c..a089ba8a5f 100644
--- a/target/arm/helper.c
+++ b/target/arm/helper.c
@@ -9036,14 +9036,19 @@ static void arm_cpu_do_interrupt_aarch64(CPUState *cs)
          * immediately lower than the target level is using AArch32 or AArch64
          */
         bool is_aa64;
+        uint64_t hcr;
 
         switch (new_el) {
         case 3:
             is_aa64 = (env->cp15.scr_el3 & SCR_RW) != 0;
             break;
         case 2:
-            is_aa64 = (env->cp15.hcr_el2 & HCR_RW) != 0;
-            break;
+            hcr = arm_hcr_el2_eff(env);
+            if ((hcr & (HCR_E2H | HCR_TGE)) != (HCR_E2H | HCR_TGE)) {
+                is_aa64 = (hcr & HCR_RW) != 0;
+                break;
+            }
+            /* fall through */
         case 1:
             is_aa64 = is_a64(env);
             break;
-- 
2.20.1