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 25 /* The last 8 bits are used to indicate how to interpret the flags field 26 * in pvclock structure. If no bits are set, all flags are ignored. 27 */ 28 #define KVM_FEATURE_CLOCKSOURCE_STABLE_BIT 24 29 30 #define MSR_KVM_WALL_CLOCK 0x11 31 #define MSR_KVM_SYSTEM_TIME 0x12 32 33 /* Custom MSRs falls in the range 0x4b564d00-0x4b564dff */ 34 #define MSR_KVM_WALL_CLOCK_NEW 0x4b564d00 35 #define MSR_KVM_SYSTEM_TIME_NEW 0x4b564d01 36 #define MSR_KVM_ASYNC_PF_EN 0x4b564d02 37 38 #define KVM_MAX_MMU_OP_BATCH 32 39 40 #define KVM_ASYNC_PF_ENABLED (1 << 0) 41 #define KVM_ASYNC_PF_SEND_ALWAYS (1 << 1) 42 43 /* Operations for KVM_HC_MMU_OP */ 44 #define KVM_MMU_OP_WRITE_PTE 1 45 #define KVM_MMU_OP_FLUSH_TLB 2 46 #define KVM_MMU_OP_RELEASE_PT 3 47 48 /* Payload for KVM_HC_MMU_OP */ 49 struct kvm_mmu_op_header { 50 __u32 op; 51 __u32 pad; 52 }; 53 54 struct kvm_mmu_op_write_pte { 55 struct kvm_mmu_op_header header; 56 __u64 pte_phys; 57 __u64 pte_val; 58 }; 59 60 struct kvm_mmu_op_flush_tlb { 61 struct kvm_mmu_op_header header; 62 }; 63 64 struct kvm_mmu_op_release_pt { 65 struct kvm_mmu_op_header header; 66 __u64 pt_phys; 67 }; 68 69 #define KVM_PV_REASON_PAGE_NOT_PRESENT 1 70 #define KVM_PV_REASON_PAGE_READY 2 71 72 struct kvm_vcpu_pv_apf_data { 73 __u32 reason; 74 __u8 pad[60]; 75 __u32 enabled; 76 }; 77 78 79 #endif /* _ASM_X86_KVM_PARA_H */ 80