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 */ 94