arch/x86/kvm/svm/hyperv.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * Common Hyper-V on KVM and KVM on Hyper-V definitions (SVM).
   4  */
   5
   6 #ifndef __ARCH_X86_KVM_SVM_HYPERV_H__
   7 #define __ARCH_X86_KVM_SVM_HYPERV_H__
   8
   9 #include <asm/mshyperv.h>
  10
  11 #include "../hyperv.h"
  12
  13 /*
  14  * Hyper-V uses the software reserved 32 bytes in VMCB
  15  * control area to expose SVM enlightenments to guests.
  16  */
  17 struct hv_enlightenments {
  18         struct __packed hv_enlightenments_control {
  19                 u32 nested_flush_hypercall:1;
  20                 u32 msr_bitmap:1;
  21                 u32 enlightened_npt_tlb: 1;
  22                 u32 reserved:29;
  23         } __packed hv_enlightenments_control;
  24         u32 hv_vp_id;
  25         u64 hv_vm_id;
  26         u64 partition_assist_page;
  27         u64 reserved;
  28 } __packed;
  29
  30 /*
  31  * Hyper-V uses the software reserved clean bit in VMCB
  32  */
  33 #define VMCB_HV_NESTED_ENLIGHTENMENTS VMCB_SW
  34
  35 #endif /* __ARCH_X86_KVM_SVM_HYPERV_H__ */