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 __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 /* _UAPI_ASM_X86_KVM_PARA_H */ 102