aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/entry/entry.S
blob: 582731f74dc87d497ddddb408c920abb9c8c4e72 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Common place for both 32- and 64-bit entry routines.
 */

#include <linux/export.h>
#include <linux/linkage.h>
#include <asm/msr-index.h>

#include "calling.h"

.pushsection .noinstr.text, "ax"

SYM_FUNC_START(entry_ibpb)
	movl	$MSR_IA32_PRED_CMD, %ecx
	movl	$PRED_CMD_IBPB, %eax
	xorl	%edx, %edx
	wrmsr
	RET
SYM_FUNC_END(entry_ibpb)
/* For KVM */
EXPORT_SYMBOL_GPL(entry_ibpb);

.popsection

THUNK warn_thunk_thunk, __warn_thunk