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01: #ifndef _ASM_X86_KVM_PARA_H
02: #define _ASM_X86_KVM_PARA_H
03: 
04: #include <linux/types.h>
05: #include <asm/hyperv.h>
06: 
07: /* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx.  It
08:  * should be used to determine that a VM is running under KVM.
09:  */
10: #define KVM_CPUID_SIGNATURE     0x40000000
11: 
12: /* This CPUID returns a feature bitmap in eax.  Before enabling a particular
13:  * paravirtualization, the appropriate feature bit should be checked.
14:  */
15: #define KVM_CPUID_FEATURES      0x40000001
16: #define KVM_FEATURE_CLOCKSOURCE         0
17: #define KVM_FEATURE_NOP_IO_DELAY        1
18: #define KVM_FEATURE_MMU_OP              2
19: /* This indicates that the new set of kvmclock msrs
20:  * are available. The use of 0x11 and 0x12 is deprecated
21:  */
22: #define KVM_FEATURE_CLOCKSOURCE2        3
23: #define KVM_FEATURE_ASYNC_PF            4
24: #define KVM_FEATURE_STEAL_TIME          5
25: 
26: /* The last 8 bits are used to indicate how to interpret the flags field
27:  * in pvclock structure. If no bits are set, all flags are ignored.
28:  */
29: #define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT      24
30: 
31: #define MSR_KVM_WALL_CLOCK  0x11
32: #define MSR_KVM_SYSTEM_TIME 0x12
33: 
34: #define KVM_MSR_ENABLED 1
35: /* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */
36: #define MSR_KVM_WALL_CLOCK_NEW  0x4b564d00
37: #define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01
38: #define MSR_KVM_ASYNC_PF_EN 0x4b564d02
39: #define MSR_KVM_STEAL_TIME  0x4b564d03
40: 
41: struct kvm_steal_time {
42:         __u64 steal;
43:         __u32 version;
44:         __u32 flags;
45:         __u32 pad[12];
46: };
47: 
48: #define KVM_STEAL_ALIGNMENT_BITS 5
49: #define KVM_STEAL_VALID_BITS ((-1ULL << (KVM_STEAL_ALIGNMENT_BITS + 1)))
50: #define KVM_STEAL_RESERVED_MASK (((1 << KVM_STEAL_ALIGNMENT_BITS) - 1 ) << 1)
51: 
52: #define KVM_MAX_MMU_OP_BATCH           32
53: 
54: #define KVM_ASYNC_PF_ENABLED                    (1 << 0)
55: #define KVM_ASYNC_PF_SEND_ALWAYS                (1 << 1)
56: 
57: /* Operations for KVM_HC_MMU_OP */
58: #define KVM_MMU_OP_WRITE_PTE            1
59: #define KVM_MMU_OP_FLUSH_TLB            2
60: #define KVM_MMU_OP_RELEASE_PT           3
61: 
62: /* Payload for KVM_HC_MMU_OP */
63: struct kvm_mmu_op_header {
64:         __u32 op;
65:         __u32 pad;
66: };
67: 
68: struct kvm_mmu_op_write_pte {
69:         struct kvm_mmu_op_header header;
70:         __u64 pte_phys;
71:         __u64 pte_val;
72: };
73: 
74: struct kvm_mmu_op_flush_tlb {
75:         struct kvm_mmu_op_header header;
76: };
77: 
78: struct kvm_mmu_op_release_pt {
79:         struct kvm_mmu_op_header header;
80:         __u64 pt_phys;
81: };
82: 
83: #define KVM_PV_REASON_PAGE_NOT_PRESENT 1
84: #define KVM_PV_REASON_PAGE_READY 2
85: 
86: struct kvm_vcpu_pv_apf_data {
87:         __u32 reason;
88:         __u8 pad[60];
89:         __u32 enabled;
90: };
91: 
92: 
93: #endif /* _ASM_X86_KVM_PARA_H */
94: 

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