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-rw-r--r--arch/arm/include/asm/secure.h60
1 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/include/asm/secure.h b/arch/arm/include/asm/secure.h
new file mode 100644
index 0000000..50582c9
--- /dev/null
+++ b/arch/arm/include/asm/secure.h
@@ -0,0 +1,60 @@
+#ifndef __ASM_SECURE_H
+#define __ASM_SECURE_H
+
+#include <config.h>
+
+#define __secure __attribute__ ((section ("._secure.text")))
+#define __secure_data __attribute__ ((section ("._secure.data")))
+
+#ifndef __ASSEMBLY__
+
+typedef struct secure_svc_tbl {
+ u32 id;
+#ifdef CONFIG_ARMV8_PSCI
+ u8 pad[4];
+#endif
+ void *func;
+} secure_svc_tbl_t;
+
+/*
+ * Macro to declare a SiP function service in '_secure_svc_tbl_entries' section
+ */
+#define DECLARE_SECURE_SVC(_name, _id, _fn) \
+ static const secure_svc_tbl_t __secure_svc_ ## _name \
+ __attribute__((used, section("._secure_svc_tbl_entries"))) \
+ = { \
+ .id = _id, \
+ .func = _fn }
+
+#else
+
+#ifdef CONFIG_ARMV8_PSCI
+#define SECURE_SVC_TBL_OFFSET 16
+#else
+#define SECURE_SVC_TBL_OFFSET 8
+
+#endif
+
+#endif /* __ASSEMBLY__ */
+
+#if defined(CONFIG_ARMV7_SECURE_BASE) || defined(CONFIG_ARMV8_SECURE_BASE)
+/*
+ * Warning, horror ahead.
+ *
+ * The target code lives in our "secure ram", but u-boot doesn't know
+ * that, and has blindly added reloc_off to every relocation
+ * entry. Gahh. Do the opposite conversion. This hack also prevents
+ * GCC from generating code veeners, which u-boot doesn't relocate at
+ * all...
+ */
+#define secure_ram_addr(_fn) ({ \
+ DECLARE_GLOBAL_DATA_PTR; \
+ void *__fn = _fn; \
+ typeof(_fn) *__tmp = (__fn - gd->reloc_off); \
+ __tmp; \
+ })
+#else
+#define secure_ram_addr(_fn) (_fn)
+#endif
+
+#endif