Gitiles
Code Review Sign In
gerrit-public.fairphone.software / kernel / msm-4.19 / 91713faf386be6d7e6556b656436813f8c4ee552 / . / arch / x86 / kvm / cpuid.h
blob: 5d47e0d95ef133e662041461c354515c71a45b4b [file] [log] [blame]
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]1#ifndef ARCH_X86_KVM_CPUID_H
2#define ARCH_X86_KVM_CPUID_H
3
4#include "x86.h"
Borislav Petkov91713fa2015-11-23 11:12:22 +0100[diff] [blame^]5#include <asm/cpu.h>
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]6
Nadav Amitdd598092014-09-16 15:10:03 +0300[diff] [blame]7int kvm_update_cpuid(struct kvm_vcpu *vcpu);
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]8struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
9 u32 function, u32 index);
Borislav Petkov9c15bb12013-09-22 16:44:50 +0200[diff] [blame]10int kvm_dev_ioctl_get_cpuid(struct kvm_cpuid2 *cpuid,
11 struct kvm_cpuid_entry2 __user *entries,
12 unsigned int type);
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]13int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
14 struct kvm_cpuid *cpuid,
15 struct kvm_cpuid_entry __user *entries);
16int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
17 struct kvm_cpuid2 *cpuid,
18 struct kvm_cpuid_entry2 __user *entries);
19int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
20 struct kvm_cpuid2 *cpuid,
21 struct kvm_cpuid_entry2 __user *entries);
Avi Kivity62046e52012-06-07 14:07:48 +0300[diff] [blame]22void kvm_cpuid(struct kvm_vcpu *vcpu, u32 *eax, u32 *ebx, u32 *ecx, u32 *edx);
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]23
Eugene Korenevsky5a4f55c2015-03-29 23:56:12 +0300[diff] [blame]24int cpuid_query_maxphyaddr(struct kvm_vcpu *vcpu);
25
26static inline int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
27{
28 return vcpu->arch.maxphyaddr;
29}
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]30
31static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
32{
33 struct kvm_cpuid_entry2 *best;
34
Petr Matousek6d1068b2012-11-06 19:24:07 +0100[diff] [blame]35 if (!static_cpu_has(X86_FEATURE_XSAVE))
Joe Perches1d804d02015-03-30 16:46:09 -0700[diff] [blame]36 return false;
Petr Matousek6d1068b2012-11-06 19:24:07 +0100[diff] [blame]37
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]38 best = kvm_find_cpuid_entry(vcpu, 1, 0);
39 return best && (best->ecx & bit(X86_FEATURE_XSAVE));
40}
41
Will Auldba904632012-11-29 12:42:50 -0800[diff] [blame]42static inline bool guest_cpuid_has_tsc_adjust(struct kvm_vcpu *vcpu)
43{
44 struct kvm_cpuid_entry2 *best;
45
46 best = kvm_find_cpuid_entry(vcpu, 7, 0);
47 return best && (best->ebx & bit(X86_FEATURE_TSC_ADJUST));
48}
49
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]50static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
51{
52 struct kvm_cpuid_entry2 *best;
53
54 best = kvm_find_cpuid_entry(vcpu, 7, 0);
55 return best && (best->ebx & bit(X86_FEATURE_SMEP));
56}
57
Feng Wu97ec8c02014-04-01 17:46:34 +0800[diff] [blame]58static inline bool guest_cpuid_has_smap(struct kvm_vcpu *vcpu)
59{
60 struct kvm_cpuid_entry2 *best;
61
62 best = kvm_find_cpuid_entry(vcpu, 7, 0);
63 return best && (best->ebx & bit(X86_FEATURE_SMAP));
64}
65
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]66static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
67{
68 struct kvm_cpuid_entry2 *best;
69
70 best = kvm_find_cpuid_entry(vcpu, 7, 0);
71 return best && (best->ebx & bit(X86_FEATURE_FSGSBASE));
72}
73
Paolo Bonzini660a5d52015-05-05 11:50:23 +0200[diff] [blame]74static inline bool guest_cpuid_has_longmode(struct kvm_vcpu *vcpu)
75{
76 struct kvm_cpuid_entry2 *best;
77
78 best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
79 return best && (best->edx & bit(X86_FEATURE_LM));
80}
81
Boris Ostrovsky2b036c62012-01-09 14:00:35 -0500[diff] [blame]82static inline bool guest_cpuid_has_osvw(struct kvm_vcpu *vcpu)
83{
84 struct kvm_cpuid_entry2 *best;
85
86 best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
87 return best && (best->ecx & bit(X86_FEATURE_OSVW));
88}
89
Mao, Junjiead756a12012-07-02 01:18:48 +0000[diff] [blame]90static inline bool guest_cpuid_has_pcid(struct kvm_vcpu *vcpu)
91{
92 struct kvm_cpuid_entry2 *best;
93
94 best = kvm_find_cpuid_entry(vcpu, 1, 0);
95 return best && (best->ecx & bit(X86_FEATURE_PCID));
96}
97
Jan Kiszka58cb6282014-01-24 16:48:44 +0100[diff] [blame]98static inline bool guest_cpuid_has_x2apic(struct kvm_vcpu *vcpu)
99{
100 struct kvm_cpuid_entry2 *best;
101
102 best = kvm_find_cpuid_entry(vcpu, 1, 0);
103 return best && (best->ecx & bit(X86_FEATURE_X2APIC));
104}
105
Paolo Bonzinia0c0feb52014-09-02 13:24:12 +0200[diff] [blame]106static inline bool guest_cpuid_is_amd(struct kvm_vcpu *vcpu)
107{
108 struct kvm_cpuid_entry2 *best;
109
110 best = kvm_find_cpuid_entry(vcpu, 0, 0);
111 return best && best->ebx == X86EMUL_CPUID_VENDOR_AuthenticAMD_ebx;
112}
113
Nadav Amit5f7dde72014-05-07 15:32:50 +0300[diff] [blame]114static inline bool guest_cpuid_has_gbpages(struct kvm_vcpu *vcpu)
115{
116 struct kvm_cpuid_entry2 *best;
117
118 best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
119 return best && (best->edx & bit(X86_FEATURE_GBPAGES));
120}
Nadav Amit6f43ed02014-07-15 17:37:46 +0300[diff] [blame]121
122static inline bool guest_cpuid_has_rtm(struct kvm_vcpu *vcpu)
123{
124 struct kvm_cpuid_entry2 *best;
125
126 best = kvm_find_cpuid_entry(vcpu, 7, 0);
127 return best && (best->ebx & bit(X86_FEATURE_RTM));
128}
Liang Lic447e762015-05-21 04:41:25 +0800[diff] [blame]129
130static inline bool guest_cpuid_has_mpx(struct kvm_vcpu *vcpu)
131{
132 struct kvm_cpuid_entry2 *best;
133
134 best = kvm_find_cpuid_entry(vcpu, 7, 0);
135 return best && (best->ebx & bit(X86_FEATURE_MPX));
136}
Xiao Guangrong8b3e34e2015-09-09 14:05:51 +0800[diff] [blame]137
138static inline bool guest_cpuid_has_pcommit(struct kvm_vcpu *vcpu)
139{
140 struct kvm_cpuid_entry2 *best;
141
142 best = kvm_find_cpuid_entry(vcpu, 7, 0);
143 return best && (best->ebx & bit(X86_FEATURE_PCOMMIT));
144}
Xiao Guangrong1cea0ce2015-09-09 14:05:57 +0800[diff] [blame]145
146static inline bool guest_cpuid_has_rdtscp(struct kvm_vcpu *vcpu)
147{
148 struct kvm_cpuid_entry2 *best;
149
150 best = kvm_find_cpuid_entry(vcpu, 0x80000001, 0);
151 return best && (best->edx & bit(X86_FEATURE_RDTSCP));
152}
Joerg Roedel6092d3d2015-10-14 15:10:54 +0200[diff] [blame]153
154/*
155 * NRIPS is provided through cpuidfn 0x8000000a.edx bit 3
156 */
157#define BIT_NRIPS 3
158
159static inline bool guest_cpuid_has_nrips(struct kvm_vcpu *vcpu)
160{
161 struct kvm_cpuid_entry2 *best;
162
163 best = kvm_find_cpuid_entry(vcpu, 0x8000000a, 0);
164
165 /*
166 * NRIPS is a scattered cpuid feature, so we can't use
167 * X86_FEATURE_NRIPS here (X86_FEATURE_NRIPS would be bit
168 * position 8, not 3).
169 */
170 return best && (best->edx & bit(BIT_NRIPS));
171}
172#undef BIT_NRIPS
173
Borislav Petkov91713fa2015-11-23 11:12:22 +0100[diff] [blame^]174static inline int guest_cpuid_family(struct kvm_vcpu *vcpu)
175{
176 struct kvm_cpuid_entry2 *best;
177
178 best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
179 if (!best)
180 return -1;
181
182 return x86_family(best->eax);
183}
184
185static inline int guest_cpuid_model(struct kvm_vcpu *vcpu)
186{
187 struct kvm_cpuid_entry2 *best;
188
189 best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
190 if (!best)
191 return -1;
192
193 return x86_model(best->eax);
194}
195
196static inline int guest_cpuid_stepping(struct kvm_vcpu *vcpu)
197{
198 struct kvm_cpuid_entry2 *best;
199
200 best = kvm_find_cpuid_entry(vcpu, 0x1, 0);
201 if (!best)
202 return -1;
203
204 return x86_stepping(best->eax);
205}
206
Avi Kivity00b27a32011-11-23 16:30:32 +0200[diff] [blame]207#endif