qdev: remove baked in notion of aliases (v2)
[qemu.git] / linux-headers / asm-x86 / kvm_para.h
1 #ifndef _ASM_X86_KVM_PARA_H
2 #define _ASM_X86_KVM_PARA_H
3
4 #include <linux/types.h>
5 #include <asm/hyperv.h>
6
7 /* This CPUID returns the signature 'KVMKVMKVM' in ebx, ecx, and edx. It
8 * should be used to determine that a VM is running under KVM.
9 */
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 */