ARM: Introduce function to switch to hypervisor mode

[u-boot] / arch / arm / include / asm / system.h

diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h
index 2bdc0bec824e1c81dc358f1cf1955717e37cb0db..c18e1e3a10ee156fa6774da14d827740ebf2ff02 100644 (file)
--- a/arch/arm/include/asm/system.h
+++ b/arch/arm/include/asm/system.h
@@ -3,6 +3,7 @@
 
 #include <common.h>
 #include <linux/compiler.h>
+#include <asm/barriers.h>
 
 #ifdef CONFIG_ARM64
 
@@ -34,11 +35,6 @@ enum dcache_option {
        DCACHE_WRITEALLOC = 4 << 2,
 };
 
-#define isb()                          \
-       ({asm volatile(                 \
-       "isb" : : : "memory");          \
-       })
-
 #define wfi()                          \
        ({asm volatile(                 \
        "wfi" : : : "memory");          \
@@ -227,7 +223,9 @@ void __noreturn psci_system_reset(bool smc);
  */
 void save_boot_params_ret(void);
 
-#define isb() __asm__ __volatile__ ("" : : : "memory")
+#ifdef CONFIG_ARMV7_LPAE
+void switch_to_hypervisor_ret(void);
+#endif
 
 #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t");