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-rw-r--r--c/src/lib/libcpu/arm/shared/include/arm-cp15.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/c/src/lib/libcpu/arm/shared/include/arm-cp15.h b/c/src/lib/libcpu/arm/shared/include/arm-cp15.h
index 4c1966d7ff..8357656bd8 100644
--- a/c/src/lib/libcpu/arm/shared/include/arm-cp15.h
+++ b/c/src/lib/libcpu/arm/shared/include/arm-cp15.h
@@ -1324,6 +1324,36 @@ arm_cp15_set_vector_base_address(void *base)
);
}
+ARM_CP15_TEXT_SECTION static inline void
+*arm_cp15_get_hyp_vector_base_address(void)
+{
+ ARM_SWITCH_REGISTERS;
+ void *base;
+
+ __asm__ volatile (
+ ARM_SWITCH_TO_ARM
+ "mrc p15, 4, %[base], c12, c0, 0\n"
+ ARM_SWITCH_BACK
+ : [base] "=&r" (base) ARM_SWITCH_ADDITIONAL_OUTPUT
+ );
+
+ return base;
+}
+
+ARM_CP15_TEXT_SECTION static inline void
+arm_cp15_set_hyp_vector_base_address(void *base)
+{
+ ARM_SWITCH_REGISTERS;
+
+ __asm__ volatile (
+ ARM_SWITCH_TO_ARM
+ "mcr p15, 4, %[base], c12, c0, 0\n"
+ ARM_SWITCH_BACK
+ : ARM_SWITCH_OUTPUT
+ : [base] "r" (base)
+ );
+}
+
/**
* @brief Sets the @a section_flags for the address range [@a begin, @a end).
*