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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
af170c50 DH |
2 | #ifndef _UAPI_ASM_X86_KVM_PARA_H |
3 | #define _UAPI_ASM_X86_KVM_PARA_H | |
4 | ||
5 | #include <linux/types.h> | |
6 | #include <asm/hyperv.h> | |
7 | ||
8 | /* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx. It | |
9 | * should be used to determine that a VM is running under KVM. | |
10 | */ | |
11 | #define KVM_CPUID_SIGNATURE 0x40000000 | |
12 | ||
13 | /* This CPUID returns a feature bitmap in eax. Before enabling a particular | |
14 | * paravirtualization, the appropriate feature bit should be checked. | |
15 | */ | |
16 | #define KVM_CPUID_FEATURES 0x40000001 | |
17 | #define KVM_FEATURE_CLOCKSOURCE 0 | |
18 | #define KVM_FEATURE_NOP_IO_DELAY 1 | |
19 | #define KVM_FEATURE_MMU_OP 2 | |
20 | /* This indicates that the new set of kvmclock msrs | |
21 | * are available. The use of 0x11 and 0x12 is deprecated | |
22 | */ | |
23 | #define KVM_FEATURE_CLOCKSOURCE2 3 | |
24 | #define KVM_FEATURE_ASYNC_PF 4 | |
25 | #define KVM_FEATURE_STEAL_TIME 5 | |
26 | #define KVM_FEATURE_PV_EOI 6 | |
3a3bb00d | 27 | #define KVM_FEATURE_PV_UNHALT 7 |
af170c50 DH |
28 | |
29 | /* The last 8 bits are used to indicate how to interpret the flags field | |
30 | * in pvclock structure. If no bits are set, all flags are ignored. | |
31 | */ | |
32 | #define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24 | |
33 | ||
34 | #define MSR_KVM_WALL_CLOCK 0x11 | |
35 | #define MSR_KVM_SYSTEM_TIME 0x12 | |
36 | ||
37 | #define KVM_MSR_ENABLED 1 | |
38 | /* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */ | |
39 | #define MSR_KVM_WALL_CLOCK_NEW 0x4b564d00 | |
40 | #define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01 | |
41 | #define MSR_KVM_ASYNC_PF_EN 0x4b564d02 | |
42 | #define MSR_KVM_STEAL_TIME 0x4b564d03 | |
43 | #define MSR_KVM_PV_EOI_EN 0x4b564d04 | |
44 | ||
45 | struct kvm_steal_time { | |
46 | __u64 steal; | |
47 | __u32 version; | |
48 | __u32 flags; | |
0b9f6c46 PX |
49 | __u8 preempted; |
50 | __u8 u8_pad[3]; | |
51 | __u32 pad[11]; | |
af170c50 DH |
52 | }; |
53 | ||
55dd00a7 MT |
54 | #define KVM_CLOCK_PAIRING_WALLCLOCK 0 |
55 | struct kvm_clock_pairing { | |
56 | __s64 sec; | |
57 | __s64 nsec; | |
58 | __u64 tsc; | |
59 | __u32 flags; | |
60 | __u32 pad[9]; | |
61 | }; | |
62 | ||
af170c50 DH |
63 | #define KVM_STEAL_ALIGNMENT_BITS 5 |
64 | #define KVM_STEAL_VALID_BITS ((-1ULL << (KVM_STEAL_ALIGNMENT_BITS + 1))) | |
65 | #define KVM_STEAL_RESERVED_MASK (((1 << KVM_STEAL_ALIGNMENT_BITS) - 1 ) << 1) | |
66 | ||
67 | #define KVM_MAX_MMU_OP_BATCH 32 | |
68 | ||
69 | #define KVM_ASYNC_PF_ENABLED (1 << 0) | |
70 | #define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1) | |
52a5c155 | 71 | #define KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT (1 << 2) |
af170c50 DH |
72 | |
73 | /* Operations for KVM_HC_MMU_OP */ | |
74 | #define KVM_MMU_OP_WRITE_PTE 1 | |
75 | #define KVM_MMU_OP_FLUSH_TLB 2 | |
76 | #define KVM_MMU_OP_RELEASE_PT 3 | |
77 | ||
78 | /* Payload for KVM_HC_MMU_OP */ | |
79 | struct kvm_mmu_op_header { | |
80 | __u32 op; | |
81 | __u32 pad; | |
82 | }; | |
83 | ||
84 | struct kvm_mmu_op_write_pte { | |
85 | struct kvm_mmu_op_header header; | |
86 | __u64 pte_phys; | |
87 | __u64 pte_val; | |
88 | }; | |
89 | ||
90 | struct kvm_mmu_op_flush_tlb { | |
91 | struct kvm_mmu_op_header header; | |
92 | }; | |
93 | ||
94 | struct kvm_mmu_op_release_pt { | |
95 | struct kvm_mmu_op_header header; | |
96 | __u64 pt_phys; | |
97 | }; | |
98 | ||
99 | #define KVM_PV_REASON_PAGE_NOT_PRESENT 1 | |
100 | #define KVM_PV_REASON_PAGE_READY 2 | |
101 | ||
102 | struct kvm_vcpu_pv_apf_data { | |
103 | __u32 reason; | |
104 | __u8 pad[60]; | |
105 | __u32 enabled; | |
106 | }; | |
107 | ||
108 | #define KVM_PV_EOI_BIT 0 | |
109 | #define KVM_PV_EOI_MASK (0x1 << KVM_PV_EOI_BIT) | |
110 | #define KVM_PV_EOI_ENABLED KVM_PV_EOI_MASK | |
111 | #define KVM_PV_EOI_DISABLED 0x0 | |
112 | ||
113 | ||
114 | #endif /* _UAPI_ASM_X86_KVM_PARA_H */ |