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1 | /* |
2 | * QEMU Hyper-V support | |
3 | * | |
4 | * Copyright Red Hat, Inc. 2011 | |
5 | * | |
6 | * Author: Vadim Rozenfeld <vrozenfe@redhat.com> | |
7 | * | |
8 | * This work is licensed under the terms of the GNU GPL, version 2 or later. | |
9 | * See the COPYING file in the top-level directory. | |
10 | * | |
11 | */ | |
12 | ||
13 | #ifndef QEMU_HW_HYPERV_H | |
14 | #define QEMU_HW_HYPERV_H 1 | |
15 | ||
16 | #include "qemu-common.h" | |
17 | #include <asm/hyperv.h> | |
18 | ||
19 | #ifndef HYPERV_SPINLOCK_NEVER_RETRY | |
20 | #define HYPERV_SPINLOCK_NEVER_RETRY 0xFFFFFFFF | |
21 | #endif | |
22 | ||
23 | #ifndef KVM_CPUID_SIGNATURE_NEXT | |
24 | #define KVM_CPUID_SIGNATURE_NEXT 0x40000100 | |
25 | #endif | |
26 | ||
27 | #ifndef CONFIG_USER_ONLY | |
28 | void hyperv_enable_vapic_recommended(bool val); | |
29 | void hyperv_enable_relaxed_timing(bool val); | |
30 | void hyperv_set_spinlock_retries(int val); | |
31 | #else | |
32 | static inline void hyperv_enable_vapic_recommended(bool val) { } | |
33 | static inline void hyperv_enable_relaxed_timing(bool val) { } | |
34 | static inline void hyperv_set_spinlock_retries(int val) { } | |
35 | #endif | |
36 | ||
37 | bool hyperv_enabled(void); | |
38 | bool hyperv_hypercall_available(void); | |
39 | bool hyperv_vapic_recommended(void); | |
40 | bool hyperv_relaxed_timing_enabled(void); | |
41 | int hyperv_get_spinlock_retries(void); | |
42 | ||
43 | #endif /* QEMU_HW_HYPERV_H */ |