| Vadim Rozenfeld | 28f52cc | 2011-12-18 22:48:13 +0200 | [diff] [blame] | 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" |
| Blue Swirl | 61eb1f3 | 2012-01-23 19:59:14 +0000 | [diff] [blame] | 17 | #ifdef CONFIG_KVM |
| Vadim Rozenfeld | 28f52cc | 2011-12-18 22:48:13 +0200 | [diff] [blame] | 18 | #include <asm/hyperv.h> |
| Blue Swirl | 61eb1f3 | 2012-01-23 19:59:14 +0000 | [diff] [blame] | 19 | #endif |
| Vadim Rozenfeld | 28f52cc | 2011-12-18 22:48:13 +0200 | [diff] [blame] | 20 | |
| 21 | #ifndef HYPERV_SPINLOCK_NEVER_RETRY |
| 22 | #define HYPERV_SPINLOCK_NEVER_RETRY 0xFFFFFFFF |
| 23 | #endif |
| 24 | |
| 25 | #ifndef KVM_CPUID_SIGNATURE_NEXT |
| 26 | #define KVM_CPUID_SIGNATURE_NEXT 0x40000100 |
| 27 | #endif |
| 28 | |
| Blue Swirl | 61eb1f3 | 2012-01-23 19:59:14 +0000 | [diff] [blame] | 29 | #if !defined(CONFIG_USER_ONLY) && defined(CONFIG_KVM) |
| Vadim Rozenfeld | 28f52cc | 2011-12-18 22:48:13 +0200 | [diff] [blame] | 30 | void hyperv_enable_vapic_recommended(bool val); |
| 31 | void hyperv_enable_relaxed_timing(bool val); |
| 32 | void hyperv_set_spinlock_retries(int val); |
| 33 | #else |
| 34 | static inline void hyperv_enable_vapic_recommended(bool val) { } |
| 35 | static inline void hyperv_enable_relaxed_timing(bool val) { } |
| 36 | static inline void hyperv_set_spinlock_retries(int val) { } |
| 37 | #endif |
| 38 | |
| 39 | bool hyperv_enabled(void); |
| 40 | bool hyperv_hypercall_available(void); |
| 41 | bool hyperv_vapic_recommended(void); |
| 42 | bool hyperv_relaxed_timing_enabled(void); |
| 43 | int hyperv_get_spinlock_retries(void); |
| 44 | |
| 45 | #endif /* QEMU_HW_HYPERV_H */ |
