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EXC_SECURE and SECURE_STACK just can clear at TRUSTZONE_NONSECURE

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licheng
2021-07-30 22:39:23 +08:00
committed by liuhaitao
parent d54b066e8f
commit aad8396354
1 changed files with 9 additions and 4 deletions
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arch/arm/src/armv8-m/exc_return.h
+9 -4
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@@ -45,10 +45,6 @@
* The remaining bits of the EXC_RETURN value should be set to 1.
*/
/* EXC_RETURN_BASE: Bits that are always set in an EXC_RETURN value. */
#define EXC_RETURN_BASE 0xffffff80
/* EXC_RETURN_EXC_SECURE: Exception Secure. The security domain the
* exception was taken to. If this bit is clear non-secure, else secure.
*/
@@ -92,6 +88,15 @@
#define EXC_RETURN_SECURE_STACK (1 << 6)
/* EXC_RETURN_BASE: Bits that are always set in an EXC_RETURN value. */
#if !defined(CONFIG_ARCH_TRUSTZONE_NONSECURE)
#define EXC_RETURN_BASE (0xffffff80 | EXC_RETURN_EXC_SECURE | \
EXC_RETURN_SECURE_STACK)
#else
#define EXC_RETURN_BASE (0xffffff80)
#endif
/* EXC_RETURN_HANDLER: Return to handler mode. Exception return gets state
* from the main stack. Execution uses MSP after return.
*/