[Qemu-devel] [PATCH v1 08/10] target-arm: Supress EPD for S2, EL2 and EL3 translations

["Edgar E. Iglesias" <edgar.iglesias@gmail.com>]

From: "Edgar E. Iglesias" <edgar.iglesias@xilinx.com>

Stage-2 translations, EL2 and EL3 regimes don't have the
EPD control.

Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
---
 target-arm/helper.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/target-arm/helper.c b/target-arm/helper.c
index 66b3fed..a53d713 100644
--- a/target-arm/helper.c
+++ b/target-arm/helper.c
@@ -6323,7 +6323,7 @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address,
     /* Read an LPAE long-descriptor translation table. */
     MMUFaultType fault_type = translation_fault;
     uint32_t level = 1;
-    uint32_t epd;
+    uint32_t epd = 0;
     int32_t tsz;
     uint32_t tg;
     uint64_t ttbr;
@@ -6420,7 +6420,9 @@ static bool get_phys_addr_lpae(CPUARMState *env, target_ulong address,
      */
     if (ttbr_select == 0) {
         ttbr = regime_ttbr(env, mmu_idx, 0);
-        epd = extract32(tcr->raw_tcr, 7, 1);
+        if (el < 2 && mmu_idx != ARMMMUIdx_S2NS) {
+            epd = extract32(tcr->raw_tcr, 7, 1);
+        }
         tsz = t0sz;
 
         tg = extract32(tcr->raw_tcr, 14, 2);
-- 
1.9.1