1 /* SPDX-License-Identifier: GPL-2.0 */
3 * Common place for both 32- and 64-bit entry routines.
6 #include <linux/export.h>
7 #include <linux/linkage.h>
8 #include <asm/msr-index.h>
9 #include <asm/unwind_hints.h>
10 #include <asm/segment.h>
11 #include <asm/cache.h>
13 .pushsection .noinstr.text, "ax"
15 SYM_FUNC_START(entry_ibpb)
16 movl $MSR_IA32_PRED_CMD, %ecx
17 movl $PRED_CMD_IBPB, %eax
21 SYM_FUNC_END(entry_ibpb)
23 EXPORT_SYMBOL_GPL(entry_ibpb);
28 * Define the VERW operand that is disguised as entry code so that
29 * it can be referenced with KPTI enabled. This ensure VERW can be
30 * used late in exit-to-user path after page tables are switched.
32 .pushsection .entry.text, "ax"
34 .align L1_CACHE_BYTES, 0xcc
35 SYM_CODE_START_NOALIGN(mds_verw_sel)
39 .align L1_CACHE_BYTES, 0xcc
40 SYM_CODE_END(mds_verw_sel);
42 EXPORT_SYMBOL_GPL(mds_verw_sel);