diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/virtual/kvm/api.txt | 48 |
1 files changed, 32 insertions, 16 deletions
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index ba6c42c576dd..2a4531bb06bd 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1079,7 +1079,7 @@ yet and must be cleared on entry. 4.35 KVM_SET_USER_MEMORY_REGION -Capability: KVM_CAP_USER_MEM +Capability: KVM_CAP_USER_MEMORY Architectures: all Type: vm ioctl Parameters: struct kvm_userspace_memory_region (in) @@ -3857,43 +3857,59 @@ Type: vcpu ioctl Parameters: struct kvm_nested_state (in/out) Returns: 0 on success, -1 on error Errors: - E2BIG: the total state size (including the fixed-size part of struct - kvm_nested_state) exceeds the value of 'size' specified by + E2BIG: the total state size exceeds the value of 'size' specified by the user; the size required will be written into size. struct kvm_nested_state { __u16 flags; __u16 format; __u32 size; + union { - struct kvm_vmx_nested_state vmx; - struct kvm_svm_nested_state svm; + struct kvm_vmx_nested_state_hdr vmx; + struct kvm_svm_nested_state_hdr svm; + + /* Pad the header to 128 bytes. */ __u8 pad[120]; - }; - __u8 data[0]; + } hdr; + + union { + struct kvm_vmx_nested_state_data vmx[0]; + struct kvm_svm_nested_state_data svm[0]; + } data; }; #define KVM_STATE_NESTED_GUEST_MODE 0x00000001 #define KVM_STATE_NESTED_RUN_PENDING 0x00000002 +#define KVM_STATE_NESTED_EVMCS 0x00000004 -#define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001 -#define KVM_STATE_NESTED_SMM_VMXON 0x00000002 +#define KVM_STATE_NESTED_FORMAT_VMX 0 +#define KVM_STATE_NESTED_FORMAT_SVM 1 -struct kvm_vmx_nested_state { +#define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000 + +#define KVM_STATE_NESTED_VMX_SMM_GUEST_MODE 0x00000001 +#define KVM_STATE_NESTED_VMX_SMM_VMXON 0x00000002 + +struct kvm_vmx_nested_state_hdr { __u64 vmxon_pa; - __u64 vmcs_pa; + __u64 vmcs12_pa; struct { __u16 flags; } smm; }; +struct kvm_vmx_nested_state_data { + __u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; + __u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE]; +}; + This ioctl copies the vcpu's nested virtualization state from the kernel to userspace. -The maximum size of the state, including the fixed-size part of struct -kvm_nested_state, can be retrieved by passing KVM_CAP_NESTED_STATE to -the KVM_CHECK_EXTENSION ioctl(). +The maximum size of the state can be retrieved by passing KVM_CAP_NESTED_STATE +to the KVM_CHECK_EXTENSION ioctl(). 4.115 KVM_SET_NESTED_STATE @@ -3903,8 +3919,8 @@ Type: vcpu ioctl Parameters: struct kvm_nested_state (in) Returns: 0 on success, -1 on error -This copies the vcpu's kvm_nested_state struct from userspace to the kernel. For -the definition of struct kvm_nested_state, see KVM_GET_NESTED_STATE. +This copies the vcpu's kvm_nested_state struct from userspace to the kernel. +For the definition of struct kvm_nested_state, see KVM_GET_NESTED_STATE. 4.116 KVM_(UN)REGISTER_COALESCED_MMIO |