hw/arm/virt-acpi-build: don't save VirtGuestInfo on AcpiBuildState
[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 #define KVM_FEATURE_PV_EOI 6
26 #define KVM_FEATURE_PV_UNHALT 7
27
28 /* The last 8 bits are used to indicate how to interpret the flags field
29 * in pvclock structure. If no bits are set, all flags are ignored.
30 */
31 #define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24
32
33 #define MSR_KVM_WALL_CLOCK 0x11
34 #define MSR_KVM_SYSTEM_TIME 0x12
35
36 #define KVM_MSR_ENABLED 1
37 /* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */
38 #define MSR_KVM_WALL_CLOCK_NEW 0x4b564d00
39 #define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01
40 #define MSR_KVM_ASYNC_PF_EN 0x4b564d02
41 #define MSR_KVM_STEAL_TIME 0x4b564d03
42 #define MSR_KVM_PV_EOI_EN 0x4b564d04
43
44 struct kvm_steal_time {
45 __u64 steal;
46 __u32 version;
47 __u32 flags;
48 __u32 pad[12];
49 };
50
51 #define KVM_STEAL_ALIGNMENT_BITS 5
52 #define KVM_STEAL_VALID_BITS ((-1ULL << (KVM_STEAL_ALIGNMENT_BITS + 1)))
53 #define KVM_STEAL_RESERVED_MASK (((1 << KVM_STEAL_ALIGNMENT_BITS) - 1 ) << 1)
54
55 #define KVM_MAX_MMU_OP_BATCH 32
56
57 #define KVM_ASYNC_PF_ENABLED (1 << 0)
58 #define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1)
59
60 /* Operations for KVM_HC_MMU_OP */
61 #define KVM_MMU_OP_WRITE_PTE 1
62 #define KVM_MMU_OP_FLUSH_TLB 2
63 #define KVM_MMU_OP_RELEASE_PT 3
64
65 /* Payload for KVM_HC_MMU_OP */
66 struct kvm_mmu_op_header {
67 __u32 op;
68 __u32 pad;
69 };
70
71 struct kvm_mmu_op_write_pte {
72 struct kvm_mmu_op_header header;
73 __u64 pte_phys;
74 __u64 pte_val;
75 };
76
77 struct kvm_mmu_op_flush_tlb {
78 struct kvm_mmu_op_header header;
79 };
80
81 struct kvm_mmu_op_release_pt {
82 struct kvm_mmu_op_header header;
83 __u64 pt_phys;
84 };
85
86 #define KVM_PV_REASON_PAGE_NOT_PRESENT 1
87 #define KVM_PV_REASON_PAGE_READY 2
88
89 struct kvm_vcpu_pv_apf_data {
90 __u32 reason;
91 __u8 pad[60];
92 __u32 enabled;
93 };
94
95 #define KVM_PV_EOI_BIT 0
96 #define KVM_PV_EOI_MASK (0x1 << KVM_PV_EOI_BIT)
97 #define KVM_PV_EOI_ENABLED KVM_PV_EOI_MASK
98 #define KVM_PV_EOI_DISABLED 0x0
99
100
101 #endif /* _ASM_X86_KVM_PARA_H */