Merge pull request #1373 from jeenu-arm/ras-support

RAS support

plat/arm/common/arm_bl31_setup.c

@@ -14,6 +14,7 @@
 #include <mmio.h>
 #include <plat_arm.h>
 #include <platform.h>
+#include <ras.h>
 
 #define BL31_END (uintptr_t)(&__BL31_END__)
 
@@ -221,6 +222,10 @@ void arm_bl31_platform_setup(void)
 
 	/* Initialize power controller before setting up topology */
 	plat_arm_pwrc_setup();
+
+#if RAS_EXTENSION
+	ras_init();
+#endif
 }
 
 /*******************************************************************************

plat/arm/common/arm_common.mk

@@ -203,6 +203,13 @@ ifeq (${SDEI_SUPPORT},1)
 BL31_SOURCES		+=	plat/arm/common/aarch64/arm_sdei.c
 endif
 
+# RAS sources
+ifeq (${RAS_EXTENSION},1)
+BL31_SOURCES		+=	lib/extensions/ras/std_err_record.c		\
+				lib/extensions/ras/ras_common.c \
+				plat/arm/common/aarch64/arm_ras.c
+endif
+
 ifneq (${TRUSTED_BOARD_BOOT},0)
 
     # Include common TBB sources

plat/common/aarch64/plat_common.c

@@ -8,6 +8,9 @@
 #include <assert.h>
 #include <console.h>
 #include <platform.h>
+#if RAS_EXTENSION
+#include <ras.h>
+#endif
 #include <xlat_mmu_helpers.h>
 
 /*
@@ -28,6 +31,8 @@
 #pragma weak plat_sdei_validate_entry_point
 #endif
 
+#pragma weak plat_ea_handler
+
 void bl31_plat_enable_mmu(uint32_t flags)
 {
 	enable_mmu_el3(flags);
@@ -105,3 +110,20 @@ int plat_sdei_validate_entry_point(uintptr_t ep, unsigned int client_mode)
 	return 0;
 }
 #endif
+
+/* RAS functions common to AArch64 ARM platforms */
+void plat_ea_handler(unsigned int ea_reason, uint64_t syndrome, void *cookie,
+		void *handle, uint64_t flags)
+{
+#if RAS_EXTENSION
+	/* Call RAS EA handler */
+	int handled = ras_ea_handler(ea_reason, syndrome, cookie, handle, flags);
+	if (handled != 0)
+		return;
+#endif
+
+	ERROR("Unhandled External Abort received on 0x%lx at EL3!\n",
+			read_mpidr_el1());
+	ERROR(" exception reason=%u syndrome=0x%lx\n", ea_reason, syndrome);
+	panic();
+}