diff options
Diffstat (limited to 'arch/x86/include/uapi/asm/kvm.h')
| -rw-r--r-- | arch/x86/include/uapi/asm/kvm.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h index 88585c1de416..7ceff6583652 100644 --- a/arch/x86/include/uapi/asm/kvm.h +++ b/arch/x86/include/uapi/asm/kvm.h @@ -35,6 +35,11 @@ #define MC_VECTOR 18 #define XM_VECTOR 19 #define VE_VECTOR 20 +#define CP_VECTOR 21 + +#define HV_VECTOR 28 +#define VC_VECTOR 29 +#define SX_VECTOR 30 /* Select x86 specific features in <linux/kvm.h> */ #define __KVM_HAVE_PIT @@ -411,6 +416,35 @@ struct kvm_xcrs { __u64 padding[16]; }; +#define KVM_X86_REG_TYPE_MSR 2 +#define KVM_X86_REG_TYPE_KVM 3 + +#define KVM_X86_KVM_REG_SIZE(reg) \ +({ \ + reg == KVM_REG_GUEST_SSP ? KVM_REG_SIZE_U64 : 0; \ +}) + +#define KVM_X86_REG_TYPE_SIZE(type, reg) \ +({ \ + __u64 type_size = (__u64)type << 32; \ + \ + type_size |= type == KVM_X86_REG_TYPE_MSR ? KVM_REG_SIZE_U64 : \ + type == KVM_X86_REG_TYPE_KVM ? KVM_X86_KVM_REG_SIZE(reg) : \ + 0; \ + type_size; \ +}) + +#define KVM_X86_REG_ID(type, index) \ + (KVM_REG_X86 | KVM_X86_REG_TYPE_SIZE(type, index) | index) + +#define KVM_X86_REG_MSR(index) \ + KVM_X86_REG_ID(KVM_X86_REG_TYPE_MSR, index) +#define KVM_X86_REG_KVM(index) \ + KVM_X86_REG_ID(KVM_X86_REG_TYPE_KVM, index) + +/* KVM-defined registers starting from 0 */ +#define KVM_REG_GUEST_SSP 0 + #define KVM_SYNC_X86_REGS (1UL << 0) #define KVM_SYNC_X86_SREGS (1UL << 1) #define KVM_SYNC_X86_EVENTS (1UL << 2) @@ -441,6 +475,7 @@ struct kvm_sync_regs { #define KVM_X86_QUIRK_MWAIT_NEVER_UD_FAULTS (1 << 6) #define KVM_X86_QUIRK_SLOT_ZAP_ALL (1 << 7) #define KVM_X86_QUIRK_STUFF_FEATURE_MSRS (1 << 8) +#define KVM_X86_QUIRK_IGNORE_GUEST_PAT (1 << 9) #define KVM_STATE_NESTED_FORMAT_VMX 0 #define KVM_STATE_NESTED_FORMAT_SVM 1 @@ -467,6 +502,7 @@ struct kvm_sync_regs { /* vendor-specific groups and attributes for system fd */ #define KVM_X86_GRP_SEV 1 # define KVM_X86_SEV_VMSA_FEATURES 0 +# define KVM_X86_SNP_POLICY_BITS 1 struct kvm_vmx_nested_state_data { __u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; @@ -559,6 +595,9 @@ struct kvm_x86_mce { #define KVM_XEN_HVM_CONFIG_PVCLOCK_TSC_UNSTABLE (1 << 7) #define KVM_XEN_HVM_CONFIG_SHARED_INFO_HVA (1 << 8) +#define KVM_XEN_MSR_MIN_INDEX 0x40000000u +#define KVM_XEN_MSR_MAX_INDEX 0x4fffffffu + struct kvm_xen_hvm_config { __u32 flags; __u32 msr; @@ -841,6 +880,7 @@ struct kvm_sev_snp_launch_start { }; /* Kept in sync with firmware values for simplicity. */ +#define KVM_SEV_PAGE_TYPE_INVALID 0x0 #define KVM_SEV_SNP_PAGE_TYPE_NORMAL 0x1 #define KVM_SEV_SNP_PAGE_TYPE_ZERO 0x3 #define KVM_SEV_SNP_PAGE_TYPE_UNMEASURED 0x4 @@ -925,5 +965,82 @@ struct kvm_hyperv_eventfd { #define KVM_X86_SEV_VM 2 #define KVM_X86_SEV_ES_VM 3 #define KVM_X86_SNP_VM 4 +#define KVM_X86_TDX_VM 5 + +/* Trust Domain eXtension sub-ioctl() commands. */ +enum kvm_tdx_cmd_id { + KVM_TDX_CAPABILITIES = 0, + KVM_TDX_INIT_VM, + KVM_TDX_INIT_VCPU, + KVM_TDX_INIT_MEM_REGION, + KVM_TDX_FINALIZE_VM, + KVM_TDX_GET_CPUID, + + KVM_TDX_CMD_NR_MAX, +}; + +struct kvm_tdx_cmd { + /* enum kvm_tdx_cmd_id */ + __u32 id; + /* flags for sub-commend. If sub-command doesn't use this, set zero. */ + __u32 flags; + /* + * data for each sub-command. An immediate or a pointer to the actual + * data in process virtual address. If sub-command doesn't use it, + * set zero. + */ + __u64 data; + /* + * Auxiliary error code. The sub-command may return TDX SEAMCALL + * status code in addition to -Exxx. + */ + __u64 hw_error; +}; + +struct kvm_tdx_capabilities { + __u64 supported_attrs; + __u64 supported_xfam; + + __u64 kernel_tdvmcallinfo_1_r11; + __u64 user_tdvmcallinfo_1_r11; + __u64 kernel_tdvmcallinfo_1_r12; + __u64 user_tdvmcallinfo_1_r12; + + __u64 reserved[250]; + + /* Configurable CPUID bits for userspace */ + struct kvm_cpuid2 cpuid; +}; + +struct kvm_tdx_init_vm { + __u64 attributes; + __u64 xfam; + __u64 mrconfigid[6]; /* sha384 digest */ + __u64 mrowner[6]; /* sha384 digest */ + __u64 mrownerconfig[6]; /* sha384 digest */ + + /* The total space for TD_PARAMS before the CPUIDs is 256 bytes */ + __u64 reserved[12]; + + /* + * Call KVM_TDX_INIT_VM before vcpu creation, thus before + * KVM_SET_CPUID2. + * This configuration supersedes KVM_SET_CPUID2s for VCPUs because the + * TDX module directly virtualizes those CPUIDs without VMM. The user + * space VMM, e.g. qemu, should make KVM_SET_CPUID2 consistent with + * those values. If it doesn't, KVM may have wrong idea of vCPUIDs of + * the guest, and KVM may wrongly emulate CPUIDs or MSRs that the TDX + * module doesn't virtualize. + */ + struct kvm_cpuid2 cpuid; +}; + +#define KVM_TDX_MEASURE_MEMORY_REGION _BITULL(0) + +struct kvm_tdx_init_mem_region { + __u64 source_addr; + __u64 gpa; + __u64 nr_pages; +}; #endif /* _ASM_X86_KVM_H */ |