1 #ifndef _UAPI_ASM_X86_KVM_PARA_H 2 #define _UAPI_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 __u8 preempted; 49 __u8 u8_pad[3]; 50 __u32 pad[11]; 51 }; 52 53 #define KVM_CLOCK_PAIRING_WALLCLOCK 0 54 struct kvm_clock_pairing { 55 __s64 sec; 56 __s64 nsec; 57 __u64 tsc; 58 __u32 flags; 59 __u32 pad[9]; 60 }; 61 62 #define KVM_STEAL_ALIGNMENT_BITS 5 63 #define KVM_STEAL_VALID_BITS ((-1ULL << (KVM_STEAL_ALIGNMENT_BITS + 1))) 64 #define KVM_STEAL_RESERVED_MASK (((1 << KVM_STEAL_ALIGNMENT_BITS) - 1 ) << 1) 65 66 #define KVM_MAX_MMU_OP_BATCH 32 67 68 #define KVM_ASYNC_PF_ENABLED (1 << 0) 69 #define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1) 70 #define KVM_ASYNC_PF_DELIVERY_AS_PF_VMEXIT (1 << 2) 71 72 /* Operations for KVM_HC_MMU_OP */ 73 #define KVM_MMU_OP_WRITE_PTE 1 74 #define KVM_MMU_OP_FLUSH_TLB 2 75 #define KVM_MMU_OP_RELEASE_PT 3 76 77 /* Payload for KVM_HC_MMU_OP */ 78 struct kvm_mmu_op_header { 79 __u32 op; 80 __u32 pad; 81 }; 82 83 struct kvm_mmu_op_write_pte { 84 struct kvm_mmu_op_header header; 85 __u64 pte_phys; 86 __u64 pte_val; 87 }; 88 89 struct kvm_mmu_op_flush_tlb { 90 struct kvm_mmu_op_header header; 91 }; 92 93 struct kvm_mmu_op_release_pt { 94 struct kvm_mmu_op_header header; 95 __u64 pt_phys; 96 }; 97 98 #define KVM_PV_REASON_PAGE_NOT_PRESENT 1 99 #define KVM_PV_REASON_PAGE_READY 2 100 101 struct kvm_vcpu_pv_apf_data { 102 __u32 reason; 103 __u8 pad[60]; 104 __u32 enabled; 105 }; 106 107 #define KVM_PV_EOI_BIT 0 108 #define KVM_PV_EOI_MASK (0x1 << KVM_PV_EOI_BIT) 109 #define KVM_PV_EOI_ENABLED KVM_PV_EOI_MASK 110 #define KVM_PV_EOI_DISABLED 0x0 111 112 113 #endif /* _UAPI_ASM_X86_KVM_PARA_H */ 114