| Olivier Deprez | 92d4c21 | 2022-12-06 15:05:30 +0100 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
| 2 | /* | ||||
| 3 | * Common place for both 32- and 64-bit entry routines. | ||||
| 4 | */ | ||||
| 5 | |||||
| 6 | #include <linux/linkage.h> | ||||
| 7 | #include <asm/export.h> | ||||
| 8 | #include <asm/msr-index.h> | ||||
| 9 | |||||
| 10 | .pushsection .noinstr.text, "ax" | ||||
| 11 | |||||
| 12 | SYM_FUNC_START(entry_ibpb) | ||||
| 13 | movl $MSR_IA32_PRED_CMD, %ecx | ||||
| 14 | movl $PRED_CMD_IBPB, %eax | ||||
| 15 | xorl %edx, %edx | ||||
| 16 | wrmsr | ||||
| 17 | RET | ||||
| 18 | SYM_FUNC_END(entry_ibpb) | ||||
| 19 | /* For KVM */ | ||||
| 20 | EXPORT_SYMBOL_GPL(entry_ibpb); | ||||
| 21 | |||||
| 22 | .popsection | ||||