3 * David Feng <fenghua@phytium.com.cn>
5 * SPDX-License-Identifier: GPL-2.0+
8 #include <asm-offsets.h>
10 #include <linux/linkage.h>
11 #include <asm/macro.h>
13 ENTRY(armv8_switch_to_el2)
14 switch_el x5, 1f, 0f, 0f
16 cmp x4, #ES_TO_AARCH64
19 * When loading 32-bit kernel, it will jump
20 * to secure firmware again, and never return.
22 bl armv8_el2_to_aarch32
25 * x3 is kernel entry point or switch_to_el1
26 * if CONFIG_ARMV8_SWITCH_TO_EL1 is defined.
27 * When running in EL2 now, jump to the
28 * address saved in x3.
31 1: armv8_switch_to_el2_m x3, x4, x5
32 ENDPROC(armv8_switch_to_el2)
34 ENTRY(armv8_switch_to_el1)
35 switch_el x5, 0f, 1f, 0f
37 /* x3 is kernel entry point. When running in EL1
38 * now, jump to the address saved in x3.
41 1: armv8_switch_to_el1_m x3, x4, x5
42 ENDPROC(armv8_switch_to_el1)
44 WEAK(armv8_el2_to_aarch32)
46 ENDPROC(armv8_el2_to_aarch32)