TTBR0_EL2
vcpu_read_sys_reg(vcpu, TTBR0_EL2));
write_sysreg_el1(__vcpu_sys_reg(vcpu, TTBR0_EL2), SYS_TTBR0);
val = translate_ttbr0_el2_to_ttbr0_el1(__vcpu_sys_reg(vcpu, TTBR0_EL2));
__vcpu_assign_sys_reg(vcpu, TTBR0_EL2, read_sysreg_el1(SYS_TTBR0));
ttbr_elx = (tcr & TCR_A1) ? TTBR1_EL2 : TTBR0_EL2;
MAPPED_EL2_SYSREG(TTBR0_EL2, TTBR0_EL1,
EL2_REG(TTBR0_EL2, access_rw, reset_val, 0),
SYS_REG(TTBR0_EL2),
MAPPED_EL2_SYSREG(TTBR0_EL2, TTBR0_EL1);