【背景】M33平台GCC环境下TZ默认开启TZ。

【修改方案】
1，在M33平台下增加默认选项及开关
2，删除build.gn编译tz的部分，该部分由使用者编译在安全态
3，修改tz初始化的一个问题

【影响】
对现有的产品编译不会有影响。

re #I45UYU
Signed-off-by: wangchen <253227059@qq.com>

config.gni

@@ -40,5 +40,6 @@ declare_args() {
   enable_ohos_kernel_liteos_m_trace = false
   enable_ohos_kernel_liteos_m_lwip = false
   enable_ohos_kernel_liteos_m_dynlink = false
+  enable_ohos_kernel_liteos_m_tz = false
   ohos_kernel_liteos_m_lwip_path = "components/net/lwip-2.1:lwip"
 }

kernel/BUILD.gn

@@ -62,7 +62,11 @@ static_library("kernel") {
   } else if ("$board_cpu" == "cortex-m7") {
     deps = [ "arch/arm/cortex-m7/gcc/:arch" ]
   } else if ("$board_cpu" == "cortex-m33") {
-    deps = [ "arch/arm/cortex-m33/gcc/TZ:arch" ]
+    if (enable_ohos_kernel_liteos_m_tz == true) {
+      deps = [ "arch/arm/cortex-m33/gcc/TZ:arch" ]
+    } else {
+      deps = [ "arch/arm/cortex-m33/gcc/NTZ:arch" ]
+    }
   } else if ("$board_cpu" == "") {
     if ("$board_arch" == "rv32imac" || "$board_arch" == "rv32imafdc") {
       deps = [ "arch/risc-v/riscv32/gcc:arch" ]

kernel/arch/arm/cortex-m33/gcc/TZ/BUILD.gn

@@ -35,9 +35,6 @@ static_library("arch") {
     "non_secure/los_interrupt.c",
     "non_secure/los_timer.c",
     "non_secure/los_trustzone.c",
-    "secure/los_secure_context.c",
-    "secure/los_secure_context_asm.S",
-    "secure/los_secure_heap.c",
   ]
 
   include_dirs = [

kernel/arch/arm/cortex-m33/gcc/TZ/non_secure/los_trustzone.c

@@ -34,6 +34,7 @@
 #include "los_secure_context.h"
 #include "los_debug.h"
 #include "los_arch_context.h"
+#include "los_interrupt.h"
 
 OsSecureContext *g_secureContext = NULL;
 
@@ -69,6 +70,7 @@ VOID LOS_SecureContextAlloc(UINT32 secureStackSize)
         return;
     }
 
+    LOS_ASSERT((__get_IPSR() == 0) && (__get_PRIMASK() == 0));
     secureStackSize = LOS_Align(secureStackSize, sizeof(UINTPTR));
     HalSVCSecureContextAlloc(secureStackSize);
 }

kernel/arch/arm/cortex-m33/gcc/TZ/secure/los_secure_heap.c

@@ -34,7 +34,7 @@
 #include "los_config.h"
 #include "los_list.h"
 
-STATIC UINT8 g_secureHeap[LOSCFG_SECURE_HEAP_SIZE] = {0};
+STATIC UINT8 __attribute__((aligned(0x4)))g_secureHeap[LOSCFG_SECURE_HEAP_SIZE] = {0};
 STATIC LOS_DL_LIST g_secureHeapFreeList = {NULL, NULL};
 
 struct OsSecureHeapNode {

kernel/arch/arm/cortex-m33/iar/TZ/non_secure/los_trustzone.c

@@ -34,6 +34,7 @@
 #include "los_secure_context.h"
 #include "los_debug.h"
 #include "los_arch_context.h"
+#include "los_interrupt.h"
 
 OsSecureContext *g_secureContext = NULL;
 
@@ -69,6 +70,7 @@ VOID LOS_SecureContextAlloc(UINT32 secureStackSize)
         return;
     }
 
+    LOS_ASSERT((__get_IPSR() == 0) && (__get_PRIMASK() == 0));
     secureStackSize = LOS_Align(secureStackSize, sizeof(UINTPTR));
     HalSVCSecureContextAlloc(secureStackSize);
 }

kernel/arch/arm/cortex-m33/iar/TZ/secure/los_secure_heap.c

@@ -34,6 +34,7 @@
 #include "los_config.h"
 #include "los_list.h"
 
+#pragma data_alignment=0x4
 STATIC UINT8 g_secureHeap[LOSCFG_SECURE_HEAP_SIZE] = {0};
 STATIC LOS_DL_LIST g_secureHeapFreeList = {NULL, NULL};