diff options
| author | Paolo Bonzini <pbonzini@redhat.com> | 2025-06-20 14:20:20 -0400 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2025-06-20 14:20:20 -0400 |
| commit | 28224ef02b56fceee2c161fe2a49a0bb197e44f5 (patch) | |
| tree | c433932939a74aa3f28a873367fb2f510e8d8b5e /arch/x86/include/uapi | |
| parent | 4580dbef5ce0f95a4bd8ac2d007bc4fbf1539332 (diff) | |
KVM: TDX: Report supported optional TDVMCALLs in TDX capabilities
Allow userspace to advertise TDG.VP.VMCALL subfunctions that the
kernel also supports. For each output register of GetTdVmCallInfo's
leaf 1, add two fields to KVM_TDX_CAPABILITIES: one for kernel-supported
TDVMCALLs (userspace can set those blindly) and one for user-supported
TDVMCALLs (userspace can set those if it knows how to handle them).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/include/uapi')
| -rw-r--r-- | arch/x86/include/uapi/asm/kvm.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/x86/include/uapi/asm/kvm.h b/arch/x86/include/uapi/asm/kvm.h index 6f3499507c5e..0f15d683817d 100644 --- a/arch/x86/include/uapi/asm/kvm.h +++ b/arch/x86/include/uapi/asm/kvm.h @@ -965,7 +965,13 @@ struct kvm_tdx_cmd { struct kvm_tdx_capabilities { __u64 supported_attrs; __u64 supported_xfam; - __u64 reserved[254]; + + __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; |