commit dbf2a71ad62b99286adf6cdc6d6c12cdb26306a9
author Richard Henderson <richard.henderson@linaro.org> Mon Aug 22 08:26:46 2022 -0700
committer Peter Maydell <peter.maydell@linaro.org> Thu Sep 22 16:38:27 2022 +0100
tree 4ff71d75f052a6d6960d347cc5f99e1d2bd3efe5
parent 652c750ee5c57ba3bbaf32e5ebb77fbbc8f68385

target/arm: Add is_secure parameter to v8m_security_lookup

Remove the use of regime_is_secure from v8m_security_lookup,
passing the new parameter to the lookup instead.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220822152741.1617527-12-richard.henderson@linaro.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

target/arm/internals.h

diff --git a/target/arm/internals.h b/target/arm/internals.h
index f8b22d3..e97f5c3 100644
--- a/target/arm/internals.h
+++ b/target/arm/internals.h
@@ -1123,7 +1123,7 @@
 
 void v8m_security_lookup(CPUARMState *env, uint32_t address,
                          MMUAccessType access_type, ARMMMUIdx mmu_idx,
-                         V8M_SAttributes *sattrs);
+                         bool secure, V8M_SAttributes *sattrs);
 
 /* Cacheability and shareability attributes for a memory access */
 typedef struct ARMCacheAttrs {

target/arm/m_helper.c

diff --git a/target/arm/m_helper.c b/target/arm/m_helper.c
index 0126399..45fbf19 100644
--- a/target/arm/m_helper.c
+++ b/target/arm/m_helper.c
@@ -689,7 +689,8 @@
     if (arm_feature(env, ARM_FEATURE_M_SECURITY)) {
         V8M_SAttributes sattrs = {};
 
-        v8m_security_lookup(env, addr, MMU_DATA_LOAD, mmu_idx, &sattrs);
+        v8m_security_lookup(env, addr, MMU_DATA_LOAD, mmu_idx,
+                            targets_secure, &sattrs);
         if (sattrs.ns) {
             attrs.secure = false;
         } else if (!targets_secure) {
@@ -2002,7 +2003,8 @@
     ARMMMUFaultInfo fi = {};
     MemTxResult txres;
 
-    v8m_security_lookup(env, addr, MMU_INST_FETCH, mmu_idx, &sattrs);
+    v8m_security_lookup(env, addr, MMU_INST_FETCH, mmu_idx,
+                        regime_is_secure(env, mmu_idx), &sattrs);
     if (!sattrs.nsc || sattrs.ns) {
         /*
          * This must be the second half of the insn, and it straddles a
@@ -2826,7 +2828,8 @@
     }
 
     if (env->v7m.secure) {
-        v8m_security_lookup(env, addr, MMU_DATA_LOAD, mmu_idx, &sattrs);
+        v8m_security_lookup(env, addr, MMU_DATA_LOAD, mmu_idx,
+                            targetsec, &sattrs);
         nsr = sattrs.ns && r;
         nsrw = sattrs.ns && rw;
     } else {

target/arm/ptw.c

diff --git a/target/arm/ptw.c b/target/arm/ptw.c
index bb3c709..74d2f63 100644
--- a/target/arm/ptw.c
+++ b/target/arm/ptw.c
@@ -1857,8 +1857,8 @@
 }
 
 void v8m_security_lookup(CPUARMState *env, uint32_t address,
-                                MMUAccessType access_type, ARMMMUIdx mmu_idx,
-                                V8M_SAttributes *sattrs)
+                         MMUAccessType access_type, ARMMMUIdx mmu_idx,
+                         bool is_secure, V8M_SAttributes *sattrs)
 {
     /*
      * Look up the security attributes for this address. Compare the
@@ -1886,7 +1886,7 @@
     }
 
     if (idau_exempt || v8m_is_sau_exempt(env, address, access_type)) {
-        sattrs->ns = !regime_is_secure(env, mmu_idx);
+        sattrs->ns = !is_secure;
         return;
     }
 
@@ -1975,7 +1975,8 @@
     bool ret;
 
     if (arm_feature(env, ARM_FEATURE_M_SECURITY)) {
-        v8m_security_lookup(env, address, access_type, mmu_idx, &sattrs);
+        v8m_security_lookup(env, address, access_type, mmu_idx,
+                            secure, &sattrs);
         if (access_type == MMU_INST_FETCH) {
             /*
              * Instruction fetches always use the MMU bank and the