1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0 */ 2*4882a593Smuzhiyun/* 3*4882a593Smuzhiyun * Common place for both 32- and 64-bit entry routines. 4*4882a593Smuzhiyun */ 5*4882a593Smuzhiyun 6*4882a593Smuzhiyun#include <linux/linkage.h> 7*4882a593Smuzhiyun#include <asm/export.h> 8*4882a593Smuzhiyun#include <asm/msr-index.h> 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun.pushsection .noinstr.text, "ax" 11*4882a593Smuzhiyun 12*4882a593SmuzhiyunSYM_FUNC_START(entry_ibpb) 13*4882a593Smuzhiyun movl $MSR_IA32_PRED_CMD, %ecx 14*4882a593Smuzhiyun movl $PRED_CMD_IBPB, %eax 15*4882a593Smuzhiyun xorl %edx, %edx 16*4882a593Smuzhiyun wrmsr 17*4882a593Smuzhiyun RET 18*4882a593SmuzhiyunSYM_FUNC_END(entry_ibpb) 19*4882a593Smuzhiyun/* For KVM */ 20*4882a593SmuzhiyunEXPORT_SYMBOL_GPL(entry_ibpb); 21*4882a593Smuzhiyun 22*4882a593Smuzhiyun.popsection 23