[PATCH v6 12/25] target/riscv: Introduce mmuidx_sum

[Richard Henderson]

In get_physical_address, we should use the setting passed
via mmu_idx rather than checking env->mstatus directly.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/riscv/internals.h  | 5 +++++
 target/riscv/cpu_helper.c | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/target/riscv/internals.h b/target/riscv/internals.h
index 7b63c0f1b6..0b61f337dd 100644
--- a/target/riscv/internals.h
+++ b/target/riscv/internals.h
@@ -37,6 +37,11 @@
 #define MMUIdx_M            3
 #define MMU_2STAGE_BIT      (1 << 2)
 
+static inline bool mmuidx_sum(int mmu_idx)
+{
+    return (mmu_idx & 3) == MMUIdx_S_SUM;
+}
+
 /* share data between vector helpers and decode code */
 FIELD(VDATA, VM, 0, 1)
 FIELD(VDATA, LMUL, 1, 3)
diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
index 888f7ae0ef..7e6cd8e0fd 100644
--- a/target/riscv/cpu_helper.c
+++ b/target/riscv/cpu_helper.c
@@ -852,7 +852,7 @@ static int get_physical_address(CPURISCVState *env, hwaddr 
*physical,
         widened = 2;
     }
     /* status.SUM will be ignored if execute on background */
-    sum = get_field(env->mstatus, MSTATUS_SUM) || use_background || is_debug;
+    sum = mmuidx_sum(mmu_idx) || use_background || is_debug;
     switch (vm) {
     case VM_1_10_SV32:
       levels = 2; ptidxbits = 10; ptesize = 4; break;
-- 
2.34.1