target/arm/ptw: Drop S1Translate::out_secure

We only use S1Translate::out_secure in two places, where we are
setting up MemTxAttrs for a page table load. We can use
arm_space_is_secure(ptw->out_space) instead, which guarantees
that we're setting the MemTxAttrs secure and space fields
consistently, and allows us to drop the out_secure field in
S1Translate entirely.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20230807141514.19075-12-peter.maydell@linaro.org

diff --git a/target/arm/ptw.c b/target/arm/ptw.c
index 78bc679..312ccab 100644 (file)
--- a/target/arm/ptw.c
+++ b/target/arm/ptw.c
@@ -63,7 +63,6 @@ typedef struct S1Translate {
      * Stage 2 is indicated by in_mmu_idx set to ARMMMUIdx_Stage2{,_S}.
      */
     bool in_s1_is_el0;
-    bool out_secure;
     bool out_rw;
     bool out_be;
     ARMSecuritySpace out_space;
@@ -553,7 +552,6 @@ static bool S1_ptw_translate(CPUARMState *env, S1Translate *ptw,
         pte_attrs = s2.cacheattrs.attrs;
         ptw->out_host = NULL;
         ptw->out_rw = false;
-        ptw->out_secure = s2.f.attrs.secure;
         ptw->out_space = s2.f.attrs.space;
     } else {
 #ifdef CONFIG_TCG
@@ -572,7 +570,6 @@ static bool S1_ptw_translate(CPUARMState *env, S1Translate *ptw,
         ptw->out_phys = full->phys_addr | (addr & ~TARGET_PAGE_MASK);
         ptw->out_rw = full->prot & PAGE_WRITE;
         pte_attrs = full->pte_attrs;
-        ptw->out_secure = full->attrs.secure;
         ptw->out_space = full->attrs.space;
 #else
         g_assert_not_reached();
@@ -630,8 +627,8 @@ static uint32_t arm_ldl_ptw(CPUARMState *env, S1Translate *ptw,
     } else {
         /* Page tables are in MMIO. */
         MemTxAttrs attrs = {
-            .secure = ptw->out_secure,
             .space = ptw->out_space,
+            .secure = arm_space_is_secure(ptw->out_space),
         };
         AddressSpace *as = arm_addressspace(cs, attrs);
         MemTxResult result = MEMTX_OK;
@@ -676,8 +673,8 @@ static uint64_t arm_ldq_ptw(CPUARMState *env, S1Translate *ptw,
     } else {
         /* Page tables are in MMIO. */
         MemTxAttrs attrs = {
-            .secure = ptw->out_secure,
             .space = ptw->out_space,
+            .secure = arm_space_is_secure(ptw->out_space),
         };
         AddressSpace *as = arm_addressspace(cs, attrs);
         MemTxResult result = MEMTX_OK;